[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Brad Figg]

** Tags added: cscc

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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[TJ]

This has *just* had a fix committed upstream and is hoped to be
available in v5.0. Could we get it backported to the LTS kernels?

commit ed20151a7699bb2c77eba3610199789a126940c4
Author: Ville Syrjälä 
Date: Tue Nov 27 20:20:04 2018 +0200

drm/vblank: Allow dynamic per-crtc max_vblank_count

commit 32db0b6501d97b09e92e70caefc74fa35aa9a8d6
Author: Ville Syrjälä 
Date: Tue Nov 27 22:05:50 2018 +0200

drm/i915: Don't try to use the hardware frame counter with i965gm TV
output

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Bug Watch Updater]

Launchpad has imported 9 comments from the remote bug at
https://bugzilla.redhat.com/show_bug.cgi?id=1313323.

If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
https://help.launchpad.net/InterBugTracking.


On 2016-03-01T12:01:12+00:00 emes wrote:

Additional info:
reporter:   libreport-2.6.4
WARNING: CPU: 0 PID: 83 at drivers/gpu/drm/drm_irq.c:1268 
drm_wait_one_vblank+0x191/0x1a0 [drm]()
vblank wait timed out on crtc 0
Modules linked in: i915(+) i2c_algo_bit dm9601 drm_kms_helper usbnet mii 
syscopyarea sysfillrect sysimgblt e1000e fb_sys_fops drm uas serio_raw 
ata_generic usb_storage pata_acpi ptp pps_core video fjes
CPU: 0 PID: 83 Comm: kworker/u4:5 Not tainted 4.4.2-301.fc23.i686 #1
Hardware name: Hewlett-Packard HP Compaq 6720s/30D8, BIOS 68MDU Ver. F.01 
07/05/2007
Workqueue: events_unbound async_run_entry_fn
 c0d8a967 d871a81f  f691bb94 c07264a0 f691bbd4 f691bbc4 c0460107
 f7eb0df0 f691bbf4 0053 f7eaeaae 04f4 f7e88551 f7e88551 f64b4400
   f691bbe0 c046017e 0009 f691bbd4 f7eb0df0 f691bbf4
Call Trace:
 [] dump_stack+0x41/0x61
 [] warn_slowpath_common+0x87/0xc0
 [] ? drm_wait_one_vblank+0x191/0x1a0 [drm]
 [] ? drm_wait_one_vblank+0x191/0x1a0 [drm]
 [] warn_slowpath_fmt+0x3e/0x60
 [] drm_wait_one_vblank+0x191/0x1a0 [drm]
 [] ? wake_atomic_t_function+0x70/0x70
 [] intel_get_load_detect_pipe+0x5d7/0x5f0 [i915]
 [] intel_tv_detect+0x106/0x660 [i915]
 [] ? check_preempt_wakeup+0xe8/0x220
 [] drm_helper_probe_single_connector_modes_merge_bits+0x20b/0x480 
[drm_kms_helper]
 [] drm_helper_probe_single_connector_modes+0x17/0x20 [drm_kms_helper]
 [] drm_fb_helper_initial_config+0x9a/0x400 [drm_kms_helper]
 [] ? pick_next_task_fair+0x459/0x520
 [] intel_fbdev_initial_config+0x19/0x20 [i915]
 [] async_run_entry_fn+0x4e/0x170
 [] process_one_work+0x145/0x380
 [] worker_thread+0x39/0x430
 [] ? process_one_work+0x380/0x380
 [] kthread+0xa6/0xc0
 [] ret_from_kernel_thread+0x21/0x38
 [] ? kthread_worker_fn+0x130/0x130

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/comments/11


On 2016-03-01T12:01:22+00:00 emes wrote:

Created attachment 1131882
File: dmesg

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/comments/12


On 2016-03-09T17:09:06+00:00 partha wrote:

*** Bug 1316214 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/comments/13


On 2016-04-19T22:26:06+00:00 robert wrote:

Description of problem:
tryed to download chrome and opera browser

Version-Release number of selected component:
kernel

Additional info:
reporter:   libreport-2.6.4
cmdline:BOOT_IMAGE=/vmlinuz-4.4.6-301.fc23.i686 
root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/root 
rd.luks.uuid=luks-af4374a9-1123-4720-bd6b-ff17ca881866 rd.lvm.lv=fedora/swap 
rhgb quiet LANG=en_CA.UTF-8
kernel: 4.4.6-301.fc23.i686
runlevel:   unknown
type:   Kerneloops

Truncated backtrace:
WARNING: CPU: 0 PID: 89 at drivers/gpu/drm/drm_irq.c:1326 
drm_wait_one_vblank+0x191/0x1a0 [drm]()
vblank wait timed out on crtc 0
Modules linked in: i915(+) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect 
sysimgblt sdhci_pci fb_sys_fops firewire_ohci sdhci drm firewire_core mmc_core 
serio_raw ata_generic crc_itu_t sky2 pata_acpi fjes video
CPU: 0 PID: 89 Comm: kworker/u4:6 Not tainted 4.4.6-301.fc23.i686 #1
Hardware name: Dell Inc. Inspiron 1525   /0U990C, BIOS A11 
03/10/2008
Workqueue: events_unbound async_run_entry_fn
 c0d8e967 50e54742 0286 f69a7b94 c0729827 f69a7bd4 f7eafaae f69a7bc4
 c0460657 f7eb1eac f69a7bf4 0059 f7eafaae 052e f7e88741 f7e88741
 f6232400   f69a7be0 c04606ce 0009 f69a7bd4 f7eb1eac
Call Trace:
 [] dump_stack+0x58/0x81
 [] warn_slowpath_common+0x87/0xc0
 [] ? drm_wait_one_vblank+0x191/0x1a0 [drm]
 [] ? drm_wait_one_vblank+0x191/0x1a0 [drm]
 [] warn_slowpath_fmt+0x3e/0x60
 [] drm_wait_one_vblank+0x191/0x1a0 [drm]
 [] ? wake_atomic_t_function+0x70/0x70
 [] intel_get_load_detect_pipe+0x5d7/0x5f0 [i915]
 [] ? vsnprintf+0x321/0x420
 [] intel_tv_detect+0x106/0x660 [i915]
 [] ? check_preempt_wakeup+0xe8/0x220
 [] drm_helper_probe_single_connector_modes_merge_bits+0x20b/0x480 
[drm_kms_helper]
 [] drm_helper_probe_single_connector_modes+0x17/0x20 [drm_kms_helper]
 [] drm_fb_helper_initial_config+0x9a/0x400 [drm_kms_helper]
 [] ? pick_next_task_fair+0x459/0x520
 [] intel_fbdev_initial_config+0x19/0x20 [i915]
 [] async_run_entry_fn+0x4e/0x170
 [] process_one_work+0x123/0x3c0
 [] worker_thread+0x39/0x430
 [] ? 

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

Giorgio Vazzana (mywing), given the fix released didn't address your
issue, then this report has nothing to do with your problem.

If you would like your issue addressed, it will help immensely if you filed a 
new report with the Ubuntu repository kernel (not mainline/upstream) via a 
terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Giorgio Vazzana]

Hello, I see that the problem is still present on Ubuntu 16.04 x86_64 on
my Thinkpad T420. Can anybody confirm that? Also, what's the easiest
workaround at the moment? Thanks.

holden@lynx:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 16.04.1 LTS
Release:16.04
Codename:   xenial

holden@lynx:~$ uname -a
Linux lynx 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 
x86_64 x86_64 GNU/Linux

Sep 23 00:33:20 lynx kernel: [  965.988645] [ cut here ]
Sep 23 00:33:20 lynx kernel: [  965.988696] WARNING: CPU: 2 PID: 1328 at 
/build/linux-R0TiM8/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 
drm_wait_one_vblank+0x1b5/0x1c0 [drm]()
Sep 23 00:33:20 lynx kernel: [  965.988698] vblank wait timed out on crtc 0
Sep 23 00:33:20 lynx kernel: [  965.988771] Modules linked in: nls_iso8859_1 
drbg ansi_cprng ctr ccm bnep intel_rapl x86_pkg_temp_thermal intel_powerclamp 
coretemp kvm_intel arc4 snd_hda_codec_hdmi kvm snd_hda_codec_conexant irqbypass 
iwldvm crct10dif_pclmul crc32_pclmul snd_hda_codec_generic mac80211 
snd_hda_intel snd_hda_codec uvcvideo aesni_intel videobuf2_vmalloc 
videobuf2_memops videobuf2_v4l2 videobuf2_core aes_x86_64 v4l2_common 
snd_hda_core lrw snd_hwdep gf128mul videodev glue_helper media ablk_helper 
thinkpad_acpi cryptd nvram snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi 
iwlwifi snd_seq btusb input_leds joydev btrtl btbcm btintel snd_seq_device 
cfg80211 bluetooth snd_timer snd soundcore mei_me mei lpc_ich serio_raw shpchp 
mac_hid parport_pc ppdev lp parport autofs4 mmc_block i915 i2c_algo_bit 
drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e drm 
firewire_ohci ahci psmouse sdhci_pci ptp sdhci pps_core libahci firewire_core 
crc_itu_t wmi fjes video
Sep 23 00:33:20 lynx kernel: [  965.988793] CPU: 2 PID: 1328 Comm: Xorg Not 
tainted 4.4.0-38-generic #57-Ubuntu
Sep 23 00:33:20 lynx kernel: [  965.988795] Hardware name: LENOVO 
4236BE3/4236BE3, BIOS 83ET78WW (1.48 ) 01/21/2016
Sep 23 00:33:20 lynx kernel: [  965.988802]  0286 b106ac7e 
8802137af860 813f1b73
Sep 23 00:33:20 lynx kernel: [  965.988805]  8802137af8a8 c010ab38 
8802137af898 810811c2
Sep 23 00:33:20 lynx kernel: [  965.988809]  880035847000  
 e240
Sep 23 00:33:20 lynx kernel: [  965.988810] Call Trace:
Sep 23 00:33:20 lynx kernel: [  965.988824]  [] 
dump_stack+0x63/0x90
Sep 23 00:33:20 lynx kernel: [  965.988833]  [] 
warn_slowpath_common+0x82/0xc0
Sep 23 00:33:20 lynx kernel: [  965.988837]  [] 
warn_slowpath_fmt+0x5c/0x80
Sep 23 00:33:20 lynx kernel: [  965.988846]  [] ? 
finish_wait+0x55/0x70
Sep 23 00:33:20 lynx kernel: [  965.988877]  [] 
drm_wait_one_vblank+0x1b5/0x1c0 [drm]
Sep 23 00:33:20 lynx kernel: [  965.92]  [] ? 
wake_atomic_t_function+0x60/0x60
Sep 23 00:33:20 lynx kernel: [  965.988959]  [] 
intel_atomic_commit+0x43a/0x6f0 [i915]
Sep 23 00:33:20 lynx kernel: [  965.989001]  [] ? 
drm_atomic_add_affected_connectors+0x27/0xf0 [drm]
Sep 23 00:33:20 lynx kernel: [  965.989039]  [] 
drm_atomic_commit+0x37/0x60 [drm]
Sep 23 00:33:20 lynx kernel: [  965.989063]  [] 
restore_fbdev_mode+0x22f/0x260 [drm_kms_helper]
Sep 23 00:33:20 lynx kernel: [  965.989100]  [] ? 
drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
Sep 23 00:33:20 lynx kernel: [  965.989120]  [] 
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
Sep 23 00:33:20 lynx kernel: [  965.989136]  [] 
drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper]
Sep 23 00:33:20 lynx kernel: [  965.989200]  [] 
intel_fbdev_set_par+0x1a/0x60 [i915]
Sep 23 00:33:20 lynx kernel: [  965.989208]  [] 
fb_set_var+0x236/0x460
Sep 23 00:33:20 lynx kernel: [  965.989216]  [] ? 
__enqueue_entity+0x6c/0x70
Sep 23 00:33:20 lynx kernel: [  965.989220]  [] ? 
enqueue_entity+0x3a7/0xc70
Sep 23 00:33:20 lynx kernel: [  965.989226]  [] ? 
select_idle_sibling+0xef/0x120
Sep 23 00:33:20 lynx kernel: [  965.989233]  [] 
fbcon_blank+0x30f/0x350
Sep 23 00:33:20 lynx kernel: [  965.989241]  [] 
do_unblank_screen+0xd3/0x1a0
Sep 23 00:33:20 lynx kernel: [  965.989247]  [] 
vt_ioctl+0x50a/0x12f0
Sep 23 00:33:20 lynx kernel: [  965.989253]  [] ? 
ext4_free_inode+0x251/0x660
Sep 23 00:33:20 lynx kernel: [  965.989260]  [] 
tty_ioctl+0x35f/0xc40
Sep 23 00:33:20 lynx kernel: [  965.989267]  [] ? 
call_rcu_sched+0x17/0x20
Sep 23 00:33:20 lynx kernel: [  965.989275]  [] ? 
ext4_destroy_inode+0x3b/0xa0
Sep 23 00:33:20 lynx kernel: [  965.989283]  [] ? 
__fsnotify_inode_delete+0x1c/0x20
Sep 23 00:33:20 lynx kernel: [  965.989291]  [] ? 
destroy_inode+0x38/0x60
Sep 23 00:33:20 lynx kernel: [  965.989295]  [] ? 
evict+0x12d/0x190
Sep 23 00:33:20 lynx kernel: [  965.989299]  [] 
do_vfs_ioctl+0x29f/0x490
Sep 23 00:33:20 lynx kernel: [  965.989305]  [] ? 
do_unlinkat+0xe9/0x2d0
Sep 23 00:33:20 lynx kernel: [  965.989308]  [] 
SyS_ioctl+0x79/0x90
Sep 23 00:33:20 lynx kernel: [  

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.4.0-24.43

---
linux (4.4.0-24.43) xenial; urgency=low

  [ Kamal Mostafa ]

  * CVE-2016-1583 (LP: #1588871)
- ecryptfs: fix handling of directory opening
- SAUCE: proc: prevent stacking filesystems on top
- SAUCE: ecryptfs: forbid opening files without mmap handler
- SAUCE: sched: panic on corrupted stack end

  * arm64: statically link rtc-efi (LP: #1583738)
- [Config] Link rtc-efi statically on arm64

 -- Kamal Mostafa   Fri, 03 Jun 2016 10:02:16 -0700

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Launchpad Bug Tracker]

This bug was fixed in the package linux-lts-xenial - 4.4.0-24.43~14.04.1

---
linux-lts-xenial (4.4.0-24.43~14.04.1) trusty; urgency=low

  [ Kamal Mostafa ]

  * CVE-2016-1583 (LP: #1588871)
- ecryptfs: fix handling of directory opening
- SAUCE: proc: prevent stacking filesystems on top
- SAUCE: ecryptfs: forbid opening files without mmap handler
- SAUCE: sched: panic on corrupted stack end

  * arm64: statically link rtc-efi (LP: #1583738)
- [Config] Link rtc-efi statically on arm64

 -- Andy Whitcroft   Wed, 08 Jun 2016 20:01:12 +0100

** Changed in: linux (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Launchpad Bug Tracker]

This bug was fixed in the package linux-lts-xenial - 4.4.0-24.43~14.04.1

---
linux-lts-xenial (4.4.0-24.43~14.04.1) trusty; urgency=low

  [ Kamal Mostafa ]

  * CVE-2016-1583 (LP: #1588871)
- ecryptfs: fix handling of directory opening
- SAUCE: proc: prevent stacking filesystems on top
- SAUCE: ecryptfs: forbid opening files without mmap handler
- SAUCE: sched: panic on corrupted stack end

  * arm64: statically link rtc-efi (LP: #1583738)
- [Config] Link rtc-efi statically on arm64

 -- Andy Whitcroft   Wed, 08 Jun 2016 20:01:12 +0100

** Changed in: linux-lts-xenial (Ubuntu)
   Status: Confirmed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-1583

** Changed in: linux-lts-xenial (Ubuntu)
   Status: Confirmed => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-lts-xenial package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.4.0-23.41

---
linux (4.4.0-23.41) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
- LP: #1582431

  * zfs: disable module checks for zfs when cross-compiling (LP: #1581127)
- [Packaging] disable zfs module checks when cross-compiling

  * Xenial update to v4.4.10 stable release (LP: #1580754)
- Revert "UBUNTU: SAUCE: (no-up) ACPICA: Dispatcher: Update thread ID for
  recursive method calls"
- Revert "UBUNTU: SAUCE: nbd: ratelimit error msgs after socket close"
- Revert: "powerpc/tm: Check for already reclaimed tasks"
- RDMA/iw_cxgb4: Fix bar2 virt addr calculation for T4 chips
- ipvs: handle ip_vs_fill_iph_skb_off failure
- ipvs: correct initial offset of Call-ID header search in SIP persistence
  engine
- ipvs: drop first packet to redirect conntrack
- mfd: intel-lpss: Remove clock tree on error path
- nbd: ratelimit error msgs after socket close
- ata: ahci_xgene: dereferencing uninitialized pointer in probe
- mwifiex: fix corner case association failure
- CNS3xxx: Fix PCI cns3xxx_write_config()
- clk-divider: make sure read-only dividers do not write to their register
- soc: rockchip: power-domain: fix err handle while probing
- clk: rockchip: free memory in error cases when registering clock branches
- clk: meson: Fix meson_clk_register_clks() signature type mismatch
- clk: qcom: msm8960: fix ce3_core clk enable register
- clk: versatile: sp810: support reentrance
- clk: qcom: msm8960: Fix ce3_src register offset
- lpfc: fix misleading indentation
- ath9k: ar5008_hw_cmn_spur_mitigate: add missing mask_m & mask_p
  initialisation
- mac80211: fix statistics leak if dev_alloc_name() fails
- tracing: Don't display trigger file for events that can't be enabled
- MD: make bio mergeable
- Minimal fix-up of bad hashing behavior of hash_64()
- mm, cma: prevent nr_isolated_* counters from going negative
- mm/zswap: provide unique zpool name
- ARM: EXYNOS: Properly skip unitialized parent clock in power domain on
- ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel
- xen: Fix page <-> pfn conversion on 32 bit systems
- xen/balloon: Fix crash when ballooning on x86 32 bit PAE
- xen/evtchn: fix ring resize when binding new events
- HID: wacom: Add support for DTK-1651
- HID: Fix boot delay for Creative SB Omni Surround 5.1 with quirk
- Input: zforce_ts - fix dual touch recognition
- proc: prevent accessing /proc//environ until it's ready
- mm: update min_free_kbytes from khugepaged after core initialization
- batman-adv: fix DAT candidate selection (must use vid)
- batman-adv: Check skb size before using encapsulated ETH+VLAN header
- batman-adv: Fix broadcast/ogm queue limit on a removed interface
- batman-adv: Reduce refcnt of removed router when updating route
- writeback: Fix performance regression in wb_over_bg_thresh()
- MAINTAINERS: Remove asterisk from EFI directory names
- x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO
- ARM: cpuidle: Pass on arm_cpuidle_suspend()'s return value
- ARC: Add missing io barriers to io{read,write}{16,32}be()
- x86/sysfb_efi: Fix valid BAR address range check
- ACPICA: Dispatcher: Update thread ID for recursive method calls
- powerpc: Fix bad inline asm constraint in create_zero_mask()
- libahci: save port map for forced port map
- ata: ahci-platform: Add ports-implemented DT bindings.
- USB: serial: cp210x: add ID for Link ECU
- USB: serial: cp210x: add Straizona Focusers device ids
- nvmem: mxs-ocotp: fix buffer overflow in read
- gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading
- drm/amdgpu: make sure vertical front porch is at least 1
- drm/amdgpu: set metadata pointer to NULL after freeing.
- iio: ak8975: Fix NULL pointer exception on early interrupt
- iio: ak8975: fix maybe-uninitialized warning
- drm/radeon: make sure vertical front porch is at least 1
- drm/i915/ddi: Fix eDP VDD handling during booting and suspend/resume
- drm/i915: Fix eDP low vswing for Broadwell
- drm/i915: Make RPS EI/thresholds multiple of 25 on SNB-BDW
- drm/i915: Fake HDMI live status
- lib/test-string_helpers.c: fix and improve string_get_size() tests
- drm/i915/skl: Fix DMC load on Skylake J0 and K0
- Linux 4.4.10

  * HDMI audio playback noise  observed on AMD Polaris 10/11 GPU (LP: #1577288)
- ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps

  * [i915_bpo] Update i915 backport driver (LP: #1580114)
- SAUCE: i915_bpo: Drop is_preliminary from BXT/KBL.
- SAUCE: i915_bpo: Sync with v4.6-rc7

  * CVE-2016-4486 (LP: #1578497)
- net: fix infoleak in rtnetlink

  * CVE-2016-4485 (LP: #1578496)
- net: fix infoleak in llc

  * drm.ko < kernel version 4.5 has a dead lock bug (LP: #1579610)
   

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Fix Committed
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Kamal Mostafa]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-xenial

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Fix Committed
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-xenial (Ubuntu Xenial)
   Importance: Undecided => Medium

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Fix Committed
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

In comment #33, commit 4cd3991 is superfluous.  I have verified that the
bug can be fixed on my hardware by applying a single cherry-pick to the
xenial (Ubuntu-4.4.0-22.39) kernel,

git am 0001-drm-atomic-Remove-drm_atomic_connectors_for_crtc.patch #
14de6c4 backported to xenial

Thanks to the following comment for suggesting that commit 4cd3991 is 
superfluous,
https://lists.ubuntu.com/archives/kernel-team/2016-May/077206.html

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Fix Committed
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Kamal Mostafa]

** Changed in: linux-lts-xenial (Ubuntu Xenial)
   Status: New => Fix Committed

** Changed in: linux-lts-xenial (Ubuntu Xenial)
   Status: Fix Committed => In Progress

** Changed in: linux (Ubuntu Xenial)
   Status: In Progress => Fix Committed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Fix Committed
Status in linux-lts-xenial source package in Xenial:
  In Progress
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Tim Gardner]

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: linux-lts-xenial (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu Xenial)
   Status: New => In Progress

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  In Progress
Status in linux-lts-xenial source package in Xenial:
  New
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Ubuntu Foundations Team Bug Bot]

** Tags added: patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

Applying the following two cherry-picks to the xenial
(Ubuntu-4.4.0-22.39) kernel solves the bug for my hardware,

git cherry-pick 4cd3991
git am 0001-drm-atomic-Remove-drm_atomic_connectors_for_crtc.patch # 14de6c4 
does not apply cleanly, so use the attached patch

[For the mainline (v4.4.9) kernel, I have not figured out a minimal set
of cherry-picks.]

** Patch added: "0001-drm-atomic-Remove-drm_atomic_connectors_for_crtc.patch"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/+attachment/4659364/+files/0001-drm-atomic-Remove-drm_atomic_connectors_for_crtc.patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

A reverse-bisect (as per comment #8) shows that the first good commit
is:

commit 14de6c44d149c68df1800ded42bbab51485ef67a
Author: Maarten Lankhorst 

drm/atomic: Remove drm_atomic_connectors_for_crtc.

** Tags removed: needs-reverse-bisect
** Tags added: bisect-done

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

** Tags removed: patch

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Incomplete
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

This bug affects the 4.4 kernel, including the xenial kernel and the
lts-xenial kernel in trusty.

The linked freedesktop bug report mentions that the bug was fixed in the
4.5 kernel with the following commit,

http://kernel.ubuntu.com/git/ubuntu/linux.git/commit/?id=92826fcdfc147a7d16766e987c12a9dfe1860c3f

The commit was not backported to the 4.4 kernel, and is not present in
the xenial kernel.

I initially tested the 4.5 mainline kernel and found that it does fix
the bug.

I then attempted to apply the aforementioned commit to the xenial kernel
and found that it does not apply cleanly.  By including two earlier
patches I was able to get it to apply (with minor porting).   But the
resultant kernel did not fix the bug.

Details:  
The two earlier patches are:

drm/i915/ivb: Move WaCxSRDisabledForSpriteScaling w/a to atomic check,
d21fbe87ce18297af0a9b7cc0cd545fd9ac28d33

drm/i915: Move disable_cxsr to the crtc_state, 
ab1d3a0e5a44f5b1a8d1f811e925c8519b56fba4


** Patch removed: "drm/i915: Calculate watermark related members in the 
crtc_state, v4."
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/+attachment/4639342/+files/patch

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Incomplete
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

stinger, could you please advise to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/comments/8
?

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Incomplete
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Alberto Salvia Novella]

** Changed in: linux-lts-xenial (Ubuntu)
   Importance: Undecided => Medium

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Ubuntu Foundations Team Bug Bot]

** Tags added: patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

** Attachment added: "drm/i915: Calculate watermark related members in the 
crtc_state, v4."
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/+attachment/4639342/+files/patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

For some reason the link in #27 isn't registered as a patch, so I'll re-
submit the patch in the hope that the bots notice it.

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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

** Also affects: linux-lts-xenial (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: linux-lts-xenial (Ubuntu)
   Status: New => Confirmed

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-xenial package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

author  Maarten Lankhorst    2015-12-03 
12:49:13 (GMT)
committer   Maarten Lankhorst    
2015-12-07 09:56:08 (GMT)
commit  92826fcdfc147a7d16766e987c12a9dfe1860c3f (patch)
tree5d5f93ea48390b6f51328461f31d46c196b4b0c9
parent  ab1d3a0e5a44f5b1a8d1f811e925c8519b56fba4 (diff)
drm/i915: Calculate watermark related members in the crtc_state, v4.
This removes pre/post_wm_update from intel_crtc->atomic, and
creates atomic state for it in intel_crtc.

Changes since v1:
- Rebase on top of wm changes.
Changes since v2:
- Split disable_cxsr into a separate patch.
Changes since v3:
- Move some of the changes to intel_wm_need_update.

Signed-off-by: Maarten Lankhorst 
Link: 
http://patchwork.freedesktop.org/patch/msgid/56603a49.5000...@linux.intel.com
Reviewed-by: Daniel Vetter 
Diffstat
-rw-r--r--  drivers/gpu/drm/i915/intel_atomic.c 1   

-rw-r--r--  drivers/gpu/drm/i915/intel_display.c39  

-rw-r--r--  drivers/gpu/drm/i915/intel_drv.h2   

3 files changed, 21 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/intel_atomic.c 
b/drivers/gpu/drm/i915/intel_atomic.c
index 96e3fa9..d0b1c9a 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -96,6 +96,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
crtc_state->update_pipe = false;
crtc_state->disable_lp_wm = false;
crtc_state->disable_cxsr = false;
+   crtc_state->wm_changed = false;
 
return _state->base;
 }
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 8dcab23..a8fb7cf 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4793,6 +4793,8 @@ intel_pre_disable_primary(struct drm_crtc *crtc)
 static void intel_post_plane_update(struct intel_crtc *crtc)
 {
struct intel_crtc_atomic_commit *atomic = >atomic;
+   struct intel_crtc_state *pipe_config =
+   to_intel_crtc_state(crtc->base.state);
struct drm_device *dev = crtc->base.dev;
 
if (atomic->wait_vblank)
@@ -4802,7 +4804,7 @@ static void intel_post_plane_update(struct intel_crtc 
*crtc)
 
crtc->wm.cxsr_allowed = true;
 
-   if (crtc->atomic.update_wm_post)
+   if (pipe_config->wm_changed)
intel_update_watermarks(>base);
 
if (atomic->update_fbc)
@@ -4835,6 +4837,9 @@ static void intel_pre_plane_update(struct intel_crtc 
*crtc)
crtc->wm.cxsr_allowed = false;
intel_set_memory_cxsr(dev_priv, false);
}
+
+   if (!needs_modeset(_config->base) && pipe_config->wm_changed)
+   intel_update_watermarks(>base);
 }
 
 static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned 
plane_mask)
@@ -11696,9 +11701,14 @@ static bool intel_wm_need_update(struct drm_plane 
*plane,
struct intel_plane_state *cur = to_intel_plane_state(plane->state);
 
/* Update watermarks on tiling or size changes. */
-   if (!plane->state->fb || !state->fb ||
-   plane->state->fb->modifier[0] != state->fb->modifier[0] ||
-   plane->state->rotation != state->rotation ||
+   if (new->visible != cur->visible)
+   return true;
+
+   if (!cur->base.fb || !new->base.fb)
+   return false;
+
+   if (cur->base.fb->modifier[0] != new->base.fb->modifier[0] ||
+   cur->base.rotation != new->base.rotation ||
drm_rect_width(>src) != drm_rect_width(>src) ||
drm_rect_height(>src) != drm_rect_height(>src) ||
drm_rect_width(>dst) != drm_rect_width(>dst) ||
@@ -11768,17 +11778,9 @@ int intel_plane_atomic_calc_changes(struct 
drm_crtc_state *crtc_state,
 plane->base.id, was_visible, visible,
 turn_off, turn_on, mode_changed);
 
-   if (turn_on) {
-   intel_crtc->atomic.update_wm_pre = true;
-   /* must disable cxsr around plane enable/disable */
-   if (plane->type != DRM_PLANE_TYPE_CURSOR) {
-   pipe_config->disable_cxsr = true;
-   /* to potentially re-enable cxsr */
-   intel_crtc->atomic.wait_vblank = true;
-   intel_crtc->atomic.update_wm_post = true;
-   }
-   } else if (turn_off) {
-   intel_crtc->atomic.update_wm_post = true;
+   if (turn_on || turn_off) {
+   pipe_config->wm_changed = true;
+
/* must disable cxsr around plane enable/disable */
if (plane->type != DRM_PLANE_TYPE_CURSOR) {
if (is_crtc_enabled)
@@ -11786,7 +11788,7 @@ int intel_plane_atomic_calc_changes(struct 
drm_crtc_state *crtc_state,

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

This bug affects the 4.4 kernel, including the xenial kernel and the
lts-xenial kernel in trusty.

As described in the freedesktop bug report,  the bug was fixed in the
4.5 kernel with the following commit,

http://kernel.ubuntu.com/git/ubuntu/linux.git/commit/?id=92826fcdfc147a7d16766e987c12a9dfe1860c3f

The commit was not backported to the 4.4 kernel, and is not present in
the xenial kernel.  The commit does apply cleanly to the 4.4 kernel and
fixes the bug.

Please consider applying this commit to the xenial kernel and the lts-
xenial kernel in trusty.

I'll attach the commit as a patch for the benefit of the bots.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[oleg]

http://kernel.ubuntu.com/git/ubuntu/linux.git/commit/?id=92826fcdfc147a7d16766e987c12a9dfe1860c3f

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Bug Watch Updater]

Launchpad has imported 7 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=93509.

If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
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On 2015-12-26T10:54:43+00:00 Tomas Janousek wrote:

I'm sometimes getting "vblank wait timed out on crtc 0" when switching
between X and console on my ThinkPad T420.

Steps to reproduce:
1. get a machine with sandybridge and optimus
2. boot it with some 4.4-rc kernel
3. power off nvidia using bbswitch (couldn't reproduce without this)
4. switch between X and console a few times
   (while :; do chvt 10; sleep 2; chvt 1; sleep 2; done)
5. this happens:

[ cut here ]
WARNING: CPU: 0 PID: 1382 at drivers/gpu/drm/drm_irq.c:1216 
drm_wait_one_vblank+0x1b0/0x1c0()
vblank wait timed out on crtc 0
Modules linked in: ccm br_netfilter bridge stp llc dm_thin_pool 
dm_persistent_data dm_bio_prison libcrc32c dm_bufio binfmt_misc tun bnep 
nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ip6table_filter ip6_tables 
xt_multiport xt_conntrack iptable_raw uvcvideo xt_TCPMSS xt_tcpudp 
iptable_mangle btusb ipt_MASQUERADE nf_nat_masquerade_ipv4 videobuf2_vmalloc 
btrtl xt_addrtype videobuf2_memops videobuf2_v4l2 btbcm iptable_nat arc4 
nf_conntrack_ipv4 btintel videobuf2_core iwldvm bluetooth nf_defrag_ipv4 
nf_nat_ipv4 v4l2_common nf_nat videodev mac80211 iptable_filter ip_tables 
x_tables x86_pkg_temp_thermal kvm_intel kvm iwlwifi snd_hda_codec_conexant 
snd_hda_codec_generic snd_hda_intel snd_hda_codec cfg80211 irqbypass 
crc32_pclmul snd_hwdep crc32c_intel sdhci_pci snd_hda_core sdhci snd_pcm_oss 
aesni_intel mmc_core aes_x86_64 lrw hdaps(O) thinkpad_ec(O) glue_helper psmouse 
ablk_helper snd_mixer_oss cryptd snd_pcm serio_raw e1000e thinkpad_acpi 
ehci_pci snd_timer nvram ehci_hcd wmi usbcore ptp s
 nd pps_core tpm_rng tpm_tis tpm battery bbswitch(O) nf_conntrack_netlink 
soundcore ac i2c_i801 usb_common nfnetlink evdev nf_conntrack_sip 
nf_conntrack_proto_sctp nf_conntrack_pptp nf_conntrack_proto_gre 
nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_h323 
nf_conntrack_irc nf_conntrack_ftp nf_conntrack coretemp hwmon ecryptfs loop 
dm_crypt
CPU: 0 PID: 1382 Comm: Xorg Tainted: G   O4.4.0-rc2-lis64-bisect+ 
#13
Hardware name: LENOVO 4178A3G/4178A3G, BIOS 83ET76WW (1.46 ) 07/05/2013
  61618deb 88041fc0b790 8f301fcc
 88041fc0b7d8 88041fc0b7c8 8f05a062 88042ad01000
   0f58 88042b485a08
Call Trace:
 [] dump_stack+0x4e/0x82
 [] warn_slowpath_common+0x82/0xc0
 [] warn_slowpath_fmt+0x5c/0x80
 [] ? _raw_spin_unlock_irqrestore+0xe/0x10
 [] ? finish_wait+0x55/0x70
 [] drm_wait_one_vblank+0x1b0/0x1c0
 [] ? wake_atomic_t_function+0x60/0x60
 [] intel_atomic_commit+0x732/0x1890
 [] ? drm_atomic_check_only+0x18e/0x590
 [] ? drm_atomic_add_affected_connectors+0x27/0xf0
 [] drm_atomic_commit+0x37/0x60
 [] restore_fbdev_mode+0x22f/0x260
 [] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80
 [] drm_fb_helper_set_par+0x2d/0x50
 [] intel_fbdev_set_par+0x1a/0x60
 [] ? fb_set_var+0x301/0x450
 [] fb_set_var+0x248/0x450
 [] ? update_curr+0x5c/0x120
 [] ? check_preempt_wakeup+0xdd/0x1c0
 [] fbcon_blank+0x363/0x3b0
 [] do_unblank_screen+0xc3/0x190
 [] complete_change_console+0x59/0xe0
 [] vt_ioctl+0x710/0x12e0
 [] ? drm_ioctl+0x189/0x540
 [] ? drm_setmaster_ioctl+0xa0/0xa0
 [] vt_compat_ioctl+0x188/0x3b0
 [] ? __call_rcu.constprop.56+0x250/0x250
 [] tty_compat_ioctl+0x54/0xc0
 [] compat_SyS_ioctl+0xeb/0x11f0
 [] ? percpu_up_read+0x17/0x40
 [] ? __sb_end_write+0x21/0x30
 [] ? vfs_write+0x165/0x1a0
 [] do_fast_syscall_32+0x9a/0x150
 [] sysenter_flags_fixed+0x8/0x12
---[ end trace 5d6ad91f242dc76e ]---

I couldn't reproduce this on 4.3 so I bisected it and got:

43d59eda1f69631c267e06ab6b94ed3c14f1f6d1 is the first bad commit
commit 43d59eda1f69631c267e06ab6b94ed3c14f1f6d1
Author: Matt Roper 
Date:   Thu Sep 24 15:53:07 2015 -0700

drm/i915: Eliminate usage of plane_wm_parameters from ILK-style WM code (v2)

Just pull the info out of the plane state structure rather than staging
it in an additional structure.

v2: Add 'visible' condition to sprites_scaled so that we don't limit the
WM level when the sprite isn't enabled.  (Ville)

Signed-off-by: Matt Roper 
Reviewed-by(v1): Ander Conselvan de Oliveira 
Reviewed-by: Maarten Lankhorst 
Signed-off-by: Daniel Vetter 

:04 04 b11db95f066a752dcccb0082490eabf21f62e8db
88bc02171246d693a868cd9ddb3144ee5d9b0ea8 M  drivers

I also tried merging yesterday's drm-intel-next

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christian Reis]

And https://bugzilla.redhat.com/show_bug.cgi?id=1313323

** Also affects: linux via
   https://bugs.freedesktop.org/show_bug.cgi?id=93509
   Importance: Unknown
   Status: Unknown

** Also affects: fedora via
   https://bugzilla.redhat.com/show_bug.cgi?id=1313323
   Importance: Unknown
   Status: Unknown

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christian Reis]

Anther report confirming on x220: https://lists.freedesktop.org/archives
/intel-gfx/2016-January/084198.html

** Bug watch added: Red Hat Bugzilla #1313323
   https://bugzilla.redhat.com/show_bug.cgi?id=1313323

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Confirmed
Status in Fedora:
  Unknown

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christian Reis]

This is affecting an increasing set of users; for instance, it seems to
be the underlying problem in bug 1545238. My Thinkpad X220 is also
showing the same problem, which suggests multiple Intel graphics systems
may be affected.

See upstream bugs: https://bugzilla.kernel.org/show_bug.cgi?id=92171 and
https://bugs.freedesktop.org/show_bug.cgi?id=89108

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

** Bug watch added: Linux Kernel Bug Tracker #92171
   http://bugzilla.kernel.org/show_bug.cgi?id=92171

** Bug watch added: freedesktop.org Bugzilla #89108
   https://bugs.freedesktop.org/show_bug.cgi?id=89108

** Bug watch added: freedesktop.org Bugzilla #93509
   https://bugs.freedesktop.org/show_bug.cgi?id=93509

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christian Reis]

Actually, this upstream bug is more likely to be related:
https://bugs.freedesktop.org/show_bug.cgi?id=93509 -- this includes a
tentative bisect indicating the commit.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Vincent Gerris]

Hi Christopher,

Thank your for the quick reply, here you go:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1562618

Let me know if you need more info.

Kind regards,
Vincent

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[stinger]

try it often, you will see the freeze 
iam now on Ubuntu 4.4.0-16.32-generic 4.4.6

this is the problem on linux 4.4
linux-4.4.0/drivers/gpu/drm/drm_irq.c:1268 drm_wait_one_vblank+0x1b5/0x1c0 [drm]
see my CurrentDmesg.txt

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

Vincent Gerris, it will help immensely if you filed a new report with the 
Ubuntu repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Vincent Gerris]

I have random freezes on:
Linux vincent-Lenovo-Yoga-2-11 4.4.0-15-generic #31-Ubuntu SMP Fri Mar 18 
19:08:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

I can switch VT without problems, but I have had lockups now for 5 times.
I hope this "stable" version will have that fixed before the kernel freeze date.
Another risk of losing users Ubuntu!

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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[stinger]

sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
[sudo] Passwort für stinger: 
P53E.210
06/22/2012

no improvement, same crash
Feb 11 08:45:21 serona kernel: [  286.815504] [ cut here 
]
Feb 11 08:45:21 serona kernel: [  286.815541] WARNING: CPU: 1 PID: 835 at 
/build/linux-_4QtIa/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1268 
drm_wait_one_vblank+0x1b5/0x1c0 [drm]()
Feb 11 08:45:21 serona kernel: [  286.815543] vblank wait timed out on crtc 0
Feb 11 08:45:21 serona kernel: [  286.815622] Modules linked in: rfcomm btusb 
btrtl btbcm btintel bnep drbg ansi_cprng ctr ccm binfmt_misc bluetooth 
hid_generic intel_rapl asus_nb_wmi asus_wmi sparse_keymap x86_pkg_temp_thermal 
intel_powerclamp coretemp snd_hda_codec_hdmi kvm_intel snd_hda_codec_realtek 
snd_hda_codec_generic kvm irqbypass snd_hda_intel crct10dif_pclmul 
snd_hda_codec arc4 crc32_pclmul snd_hda_core snd_hwdep cryptd snd_pcm iwldvm 
snd_seq_midi snd_seq_midi_event mac80211 snd_rawmidi usbhid hid snd_seq 
input_leds iwlwifi serio_raw snd_seq_device cfg80211 snd_timer mei_me lpc_ich 
mei snd shpchp soundcore joydev mac_hid parport_pc ppdev lp parport autofs4 
i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops 
psmouse drm ahci libahci atl1c wmi video fjes
Feb 11 08:45:21 serona kernel: [  286.815628] CPU: 1 PID: 835 Comm: Xorg Not 
tainted 4.4.0-4-generic #19-Ubuntu
Feb 11 08:45:21 serona kernel: [  286.815630] Hardware name: ASUSTeK Computer 
Inc. P53E/P53E, BIOS P53E.210 06/22/2012
Feb 11 08:45:21 serona kernel: [  286.815637]   
8c1d88b6 8800b5d77838 813d9d54
Feb 11 08:45:21 serona kernel: [  286.815641]  8800b5d77880 
8800b5d77870 8107ec12 880035bfb800
Feb 11 08:45:21 serona kernel: [  286.815644]   
 42af 8801381cf808
Feb 11 08:45:21 serona kernel: [  286.815646] Call Trace:
Feb 11 08:45:21 serona kernel: [  286.815656]  [] 
dump_stack+0x44/0x60
Feb 11 08:45:21 serona kernel: [  286.815664]  [] 
warn_slowpath_common+0x82/0xc0
Feb 11 08:45:21 serona kernel: [  286.815668]  [] 
warn_slowpath_fmt+0x5c/0x80
Feb 11 08:45:21 serona kernel: [  286.815676]  [] ? 
finish_wait+0x55/0x70
Feb 11 08:45:21 serona kernel: [  286.815696]  [] 
drm_wait_one_vblank+0x1b5/0x1c0 [drm]
Feb 11 08:45:21 serona kernel: [  286.815702]  [] ? 
wake_atomic_t_function+0x60/0x60
Feb 11 08:45:21 serona kernel: [  286.815772]  [] 
intel_atomic_commit+0x43a/0x6f0 [i915]
Feb 11 08:45:21 serona kernel: [  286.815810]  [] ? 
drm_atomic_add_affected_connectors+0x27/0xf0 [drm]
Feb 11 08:45:21 serona kernel: [  286.815838]  [] 
drm_atomic_commit+0x37/0x60 [drm]
Feb 11 08:45:21 serona kernel: [  286.815855]  [] 
restore_fbdev_mode+0x22f/0x260 [drm_kms_helper]
Feb 11 08:45:21 serona kernel: [  286.815870]  [] 
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
Feb 11 08:45:21 serona kernel: [  286.815881]  [] 
drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper]
Feb 11 08:45:21 serona kernel: [  286.815936]  [] 
intel_fbdev_set_par+0x1a/0x60 [i915]
Feb 11 08:45:21 serona kernel: [  286.815942]  [] ? 
fb_set_var+0x2ef/0x460
Feb 11 08:45:21 serona kernel: [  286.815945]  [] 
fb_set_var+0x236/0x460
Feb 11 08:45:21 serona kernel: [  286.815954]  [] ? 
update_curr+0x79/0x150
Feb 11 08:45:21 serona kernel: [  286.815961]  [] 
fbcon_blank+0x30f/0x350
Feb 11 08:45:21 serona kernel: [  286.815966]  [] ? 
__switch_to+0x420/0x5a0
Feb 11 08:45:21 serona kernel: [  286.815974]  [] 
do_unblank_screen+0xd3/0x1a0
Feb 11 08:45:21 serona kernel: [  286.815981]  [] 
complete_change_console+0x59/0xe0
Feb 11 08:45:21 serona kernel: [  286.815987]  [] 
vt_ioctl+0x710/0x12f0
Feb 11 08:45:21 serona kernel: [  286.816010]  [] ? 
drm_ioctl+0x189/0x540 [drm]
Feb 11 08:45:21 serona kernel: [  286.816014]  [] 
tty_ioctl+0x35f/0xc30
Feb 11 08:45:21 serona kernel: [  286.816024]  [] 
do_vfs_ioctl+0x298/0x480
Feb 11 08:45:21 serona kernel: [  286.816031]  [] ? 
__sb_end_write+0x21/0x30
Feb 11 08:45:21 serona kernel: [  286.816035]  [] ? 
vfs_write+0x15d/0x1a0
Feb 11 08:45:21 serona kernel: [  286.816041]  [] 
SyS_ioctl+0x79/0x90
Feb 11 08:45:21 serona kernel: [  286.816049]  [] 
entry_SYSCALL_64_fastpath+0x16/0x71
Feb 11 08:45:21 serona kernel: [  286.816053] ---[ end trace 59def4911d5fadff 
]---


** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 

[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[stinger]

Christopher, the latest mainline kernel from /~kernel-
ppa/mainline/v4.5-rc3-wily fix the VT switching issue.

stinger@serona:~$ uname -a
Linux serona 4.5.0-040500rc3-generic #201602071930 SMP Mon Feb 8 00:34:43 UTC 
2016 x86_64 x86_64 x86_64 GNU/Linux


** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[stinger]

v4.4-wily: freeze
v4.4.1-wily: freeze
v4.5-rc1-wily: no freeze  <<<
v4.5-rc2-wily: no freeze
v4.5-rc3-wily: no freeze


** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[stinger]

Oh, wait only the freeze is fixed. Some kernel errors left

Feb 11 21:43:34 serona kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] 
*ERROR* CPU pipe A FIFO underrun
Feb 11 21:43:34 serona kernel: [drm:intel_set_pch_fifo_underrun_reporting 
[i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
Feb 11 21:43:34 serona kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] 
*ERROR* PCH transcoder A FIFO underrun

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

stinger, to advise, the scope of this report is only the freeze (not
line items containing the word error).

Despite this, the next step is to fully reverse commit bisect from
kernel 4.4 to 4.5-rc3 in order to identify the last bad commit, followed
immediately by the first good one. Once this good commit has been
identified, it may be reviewed for backporting. Could you please do this
following
https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F
?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

After the fix commit (not kernel version) has been identified, then
please mark this report Status Confirmed.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: needs-reverse-bisect

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[stinger]

** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.5-rc3

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

stinger, in order to allow additional upstream developers to examine the issue, 
at your earliest convenience, could you please test the latest upstream kernel 
available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please 
keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the 
daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was 
released upstream.
4) Install instructions are available at 
https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't 
boot into the OS) please make a comment in your report about this, and continue 
to test the next most recent kernel version until you can test to the issue. 
Once you've tested the upstream kernel, please comment on which kernel version 
specifically you tested. If this issue is fixed in the mainline kernel, please 
add the following tags by clicking on the yellow circle with a black pencil 
icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is
the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.

Once testing of the latest upstream kernel is complete, please mark this
report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags removed: bios-outdated-210
** Tags added: latest-bios-210

** Changed in: linux (Ubuntu)
   Importance: Low => Medium

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Christopher M. Penalver]

stinger, thank you for reporting this and helping make Ubuntu better.

As per https://www.asus.com/Commercial-
Notebooks/ASUSPRO_ESSENTIAL_P53E/HelpDesk_Download/ an update to your
computer's buggy and outdated BIOS is available (210). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an 
apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement 
or not.
3) Please mark this report Status Confirmed. If it's not reproducible, please 
mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-210

** Changed in: linux (Ubuntu)
   Importance: Critical => Low

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1542939/+subscriptions

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[Kernel-packages] [Bug 1542939] Re: system freeze after vt switching

[Alberto Salvia Novella]

** Changed in: linux (Ubuntu)
   Importance: Undecided => Critical

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1542939

Title:
  system freeze after vt switching

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use the ctrl+alt+1 to switch to a terminal - ok,
  after switching back by  ctrl+alt+7 the system freeze

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-3-generic 4.4.0-3.17
  ProcVersionSignature: Ubuntu 4.4.0-3.17-generic 4.4.1
  Uname: Linux 4.4.0-3-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  stinger1644 F pulseaudio
  Date: Sun Feb  7 22:27:42 2016
  HibernationDevice: RESUME=UUID=888e93f3-1a7d-4bf8-a00d-cea6a759d03a
  InstallationDate: Installed on 2015-11-12 (87 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  Lsusb:
   Bus 002 Device 003: ID 24ae:2000  
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. P53E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-3-generic 
root=UUID=9ad09333-ac7d-4b10-99a0-1e598daa4753 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-3-generic N/A
   linux-backports-modules-4.4.0-3-generic  N/A
   linux-firmware   1.155
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/15/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P53E.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: P53E
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP53E.209:bd03/15/2012:svnASUSTeKComputerInc.:pnP53E:pvr1.0:rvnASUSTeKComputerInc.:rnP53E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: P53E
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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