Public bug reported:
Hi,
I'm using a new Skylake Thinkpad T460s with and external monitor
connected via Displayport and Ubuntu 16.04 and the latest kernel as of
today: Linux test 4.4.0-17-generic #33-Ubuntu SMP Tue Mar 29 17:17:28
UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
X will from time to time lock up when the computer is left idle for a long time
and both displays (laptop and external) go to sleep and then woken up.
pr 6 07:33:24 test kernel: [39056.603685] [drm:intel_dp_set_idle_link_train
[i915_bpo]] *ERROR* Timed out waiting for DP idle patterns
Apr 6 07:33:24 test kernel: [39056.798309] [drm:intel_mst_enable_dp
[i915_bpo]] *ERROR* Timed out waiting for ACT sent
Apr 6 07:33:24 test kernel: [39056.853808] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: ELD buf size is 0, force 128
Apr 6 07:33:24 test kernel: [39056.853928] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: invalid ELD data byte 0
Apr 6 07:33:24 test kernel: [39056.853994] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: ELD buf size is 0, force 128
Apr 6 07:33:24 test kernel: [39056.854113] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: invalid ELD data byte 0
Apr 6 07:33:24 test kernel: [39056.854452] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: ELD buf size is 0, force 128
Apr 6 07:33:24 test kernel: [39056.854511] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: invalid ELD data byte 0
Apr 6 07:33:24 test kernel: [39056.854575] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: ELD buf size is 0, force 128
Apr 6 07:33:24 test kernel: [39056.854636] snd_hda_codec_hdmi hdaudioC0D2:
HDMI: invalid ELD data byte 0
Apr 6 07:33:24 test kernel: [39056.953538] ------------[ cut here ]------------
Apr 6 07:33:24 test kernel: [39056.953598] WARNING: CPU: 1 PID: 1190 at
/build/linux-bi18CQ/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326
drm_wait_one_vblank+0x1b5/0x1c0 [drm]()
Apr 6 07:33:24 test kernel: [39056.953604] vblank wait timed out on crtc 1
Apr 6 07:33:24 test kernel: [39056.953608] Modules linked in: pci_stub
vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_usb_audio videobuf2_core
v4l2_common snd_usbmidi_lib videodev media msr acpi_call(OE) bnep btusb btrtl
btbcm btintel binfmt_misc bluetooth nls_iso8859_1 arc4 snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic snd_soc_skl snd_soc_skl_ipc
snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core snd_compress
ac97_bus snd_pcm_dmaengine dw_dmac_core iwlmvm snd_hda_intel mac80211
snd_hda_codec intel_rapl iwlwifi x86_pkg_temp_thermal intel_powerclamp coretemp
snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_hda_core snd_hwdep
joydev snd_seq_device snd_pcm input_leds cfg80211 serio_raw thinkpad_acpi
rtsx_pci_ms nvram memstick snd_timer mei_me mei shpchp snd soundcore tpm_crb
mac_hid kvm_intel kvm irqbypass parport_pc ppdev lp parport autofs4 drbg
ansi_cprng algif_skcipher af_alg dm_
crypt hid_microsoft hid_generic usbhid hid rtsx_pci_sdmmc crct10dif_pclmul
i915_bpo crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper intel_ips
ablk_helper i2c_algo_bit cryptd drm_kms_helper nvme syscopyarea e1000e psmouse
sysfillrect sysimgblt fb_sys_fops ptp drm pps_core rtsx_pci wmi video fjes
Apr 6 07:33:24 test kernel: [39056.953824] CPU: 1 PID: 1190 Comm: Xorg
Tainted: G W OE 4.4.0-16-generic #32-Ubuntu
Apr 6 07:33:24 test kernel: [39056.953830] Hardware name: LENOVO
20F9CTO1WW/20F9CTO1WW, BIOS N1CET40W (1.08 ) 03/09/2016
Apr 6 07:33:24 test kernel: [39056.953835] 0000000000000286 00000000e7611a0a
ffff880508c6fad8 ffffffff813e9143
Apr 6 07:33:24 test kernel: [39056.953846] ffff880508c6fb20 ffffffffc0085b10
ffff880508c6fb10 ffffffff8107ff22
Apr 6 07:33:24 test kernel: [39056.953854] ffff880502917800 0000000000000001
0000000000000000 000000000007939d
Apr 6 07:33:24 test kernel: [39056.953863] Call Trace:
Apr 6 07:33:24 test kernel: [39056.953880] [<ffffffff813e9143>]
dump_stack+0x63/0x90
Apr 6 07:33:24 test kernel: [39056.953892] [<ffffffff8107ff22>]
warn_slowpath_common+0x82/0xc0
Apr 6 07:33:24 test kernel: [39056.953901] [<ffffffff8107ffbc>]
warn_slowpath_fmt+0x5c/0x80
Apr 6 07:33:24 test kernel: [39056.953913] [<ffffffff810c2655>] ?
finish_wait+0x55/0x70
Apr 6 07:33:24 test kernel: [39056.953954] [<ffffffffc00562f5>]
drm_wait_one_vblank+0x1b5/0x1c0 [drm]
Apr 6 07:33:24 test kernel: [39056.953964] [<ffffffff810c2af0>] ?
wake_atomic_t_function+0x60/0x60
Apr 6 07:33:24 test kernel: [39056.954068] [<ffffffffc02edeb6>]
intel_atomic_commit+0x6b6/0xab0 [i915_bpo]
Apr 6 07:33:24 test kernel: [39056.954131] [<ffffffffc006f91e>] ?
drm_atomic_check_only+0x18e/0x590 [drm]
Apr 6 07:33:24 test kernel: [39056.954186] [<ffffffffc006fd57>]
drm_atomic_commit+0x37/0x60 [drm]
Apr 6 07:33:24 test kernel: [39056.954216] [<ffffffffc017d846>]
drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]
Apr 6 07:33:24 test kernel: [39056.954266] [<ffffffffc005eeb2>]
drm_mode_set_config_internal+0x62/0x100 [drm]
Apr 6 07:33:24 test kernel: [39056.954318] [<ffffffffc00633d2>]
drm_mode_setcrtc+0x3d2/0x4f0 [drm]
Apr 6 07:33:24 test kernel: [39056.954355] [<ffffffffc0054752>]
drm_ioctl+0x152/0x540 [drm]
Apr 6 07:33:24 test kernel: [39056.954403] [<ffffffffc0063000>] ?
drm_mode_setplane+0x1b0/0x1b0 [drm]
Apr 6 07:33:24 test kernel: [39056.954416] [<ffffffff8121f6fc>]
do_vfs_ioctl+0x2ac/0x4a0
Apr 6 07:33:24 test kernel: [39056.954426] [<ffffffff8108d071>] ?
__set_task_blocked+0x41/0xa0
Apr 6 07:33:24 test kernel: [39056.954436] [<ffffffff8108fa16>] ?
__set_current_blocked+0x36/0x60
Apr 6 07:33:24 test kernel: [39056.954443] [<ffffffff8121f969>]
SyS_ioctl+0x79/0x90
Apr 6 07:33:24 test kernel: [39056.954452] [<ffffffff8108fcce>] ?
SyS_rt_sigprocmask+0x8e/0xc0
Apr 6 07:33:24 test kernel: [39056.954464] [<ffffffff81824ef2>]
entry_SYSCALL_64_fastpath+0x16/0x71
Apr 6 07:33:24 test kernel: [39056.954472] ---[ end trace 9dcf595db8d43c98 ]---
Attached is the full kernel log from boot until the issue happens, at which
point, if I have a lockup of X I need to reboot to get back to normal.
I don't know if this particular bug I'm reporting is the one responsible
for the lockups, as I've isolated 4 different warning/error messages
which separately or in combination may be the cause. I'm reporting all
of them now in separate bug reports.
Please let me know if any information is missing.
# lspci
00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev
08)
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated
Graphics (rev 07)
00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI
Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP
Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI
(rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.2 PCI bridge: Intel Corporation Device 9d12 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port
(rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-LM (rev
21)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI
Express Card Reader (rev 01)
04:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
05:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD
Controller (rev 01)
# lspci -vvv
00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev
08)
Subsystem: Lenovo Skylake Host Bridge/DRAM Registers
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=10 <?>
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated
Graphics (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo Skylake Integrated Graphics
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 133
Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=16M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at e000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee00018 Data: 0000
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v1] #1b
Capabilities: [200 v1] Address Translation Service (ATS)
ATSCap: Invalidate Queue Depth: 00
ATSCtl: Enable-, Smallest Translation Unit: 00
Capabilities: [300 v1] #13
Kernel driver in use: i915_bpo
Kernel modules: i915_bpo
# for file in /sys/module/i915_bpo/parameters/*; do echo -en $file"\t"; cat
$file; done;
/sys/module/i915_bpo/parameters/disable_display N
/sys/module/i915_bpo/parameters/disable_power_well 1
/sys/module/i915_bpo/parameters/edp_vswing 0
/sys/module/i915_bpo/parameters/enable_cmd_parser 1
/sys/module/i915_bpo/parameters/enable_dc -1
/sys/module/i915_bpo/parameters/enable_execlists 1
/sys/module/i915_bpo/parameters/enable_fbc -1
/sys/module/i915_bpo/parameters/enable_guc_submission N
/sys/module/i915_bpo/parameters/enable_hangcheck Y
/sys/module/i915_bpo/parameters/enable_ips 1
/sys/module/i915_bpo/parameters/enable_ppgtt 3
/sys/module/i915_bpo/parameters/enable_psr 0
/sys/module/i915_bpo/parameters/enable_rc6 1
/sys/module/i915_bpo/parameters/fastboot N
/sys/module/i915_bpo/parameters/guc_log_level -1
/sys/module/i915_bpo/parameters/invert_brightness 0
/sys/module/i915_bpo/parameters/load_detect_test N
/sys/module/i915_bpo/parameters/lvds_channel_mode 0
/sys/module/i915_bpo/parameters/lvds_use_ssc -1
/sys/module/i915_bpo/parameters/mmio_debug 0
/sys/module/i915_bpo/parameters/modeset -1
/sys/module/i915_bpo/parameters/nuclear_pageflip N
/sys/module/i915_bpo/parameters/panel_ignore_lid 1
/sys/module/i915_bpo/parameters/prefault_disable N
/sys/module/i915_bpo/parameters/preliminary_hw_support 0
/sys/module/i915_bpo/parameters/reset Y
/sys/module/i915_bpo/parameters/semaphores -1
/sys/module/i915_bpo/parameters/use_mmio_flip 0
/sys/module/i915_bpo/parameters/vbt_sdvo_panel_type -1
/sys/module/i915_bpo/parameters/verbose_state_checks Y
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "bug4.txt"
https://bugs.launchpad.net/bugs/1567425/+attachment/4627524/+files/bug4.txt
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https://bugs.launchpad.net/bugs/1567425
Title:
*ERROR* Timed out waiting for DP idle patterns /
drm_wait_one_vblank+0x1b5/0x1c0 [drm]
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