[Kernel-packages] [Bug 1840236]

2019-09-14 Thread Bugs-i 
Likely identical, especially if disabling fbc from command line works.

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https://bugs.launchpad.net/bugs/1840236

Title:
  Horizontal corrupted line at top of screen caused by framebuffer
  compression

Status in HWE Next:
  New
Status in Linux:
  Invalid
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem-osp1 package in Ubuntu:
  New
Status in linux source package in Bionic:
  Invalid
Status in linux-oem-osp1 source package in Bionic:
  Fix Committed
Status in linux source package in Disco:
  Invalid
Status in linux-oem-osp1 source package in Disco:
  New
Status in linux source package in Eoan:
  Fix Released
Status in linux-oem-osp1 source package in Eoan:
  New

Bug description:
  SRU Justification:

  [Impact]
  On IceLake platforms there might be a thin, horizon strap of corruption
  image at the top of screen randomly after some series of window
  operations and disappears within a second or so. This is found on
  multiple platforms and is quite annonying that results in bad user
  experience.

  [Fix]
  The upstream bug has been filed for previous platforms, e.g. GeminiLake
  for an year or so, still working in progress, and so far this only known
  work-around is to turn off framebuffer compression on affected platforms.

  [Test Case]
  The most easy way is to observe if such corruption appears during the
  transition from GDM to gnome-shell.

  [Regression Risk]
  Low. The work-around for GeminiLake was landed to Linux stable 4.14.125
  and has been backported to B/D.

  === Original Description ==

  This is an follow-up for
  https://bugs.freedesktop.org/show_bug.cgi?id-108085 but found on
  IceLake platforms.

  Right after GDM is login screen is rendered, there might be a thin
  strap of corrupted image at top of the display for a short while. Like
  f-d-o bug 108085, sometimes it can also be reproduced by clicking the
  date/time repeatedly to open and close the calendar several times.
  Etc.

  Known work-around so far is to append kernel boot param
  "i915.enable_fbc=0".

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-5.0.0-1018-oem-osp1 5.0.0-1018.20
  ProcVersionSignature: Ubuntu 5.0.0-1018.20-oem-osp1 5.0.18
  Uname: Linux 5.0.0-1018-oem-osp1 x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Aug 15 16:41:01 2019
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1-loras+X14
  InstallationDate: Installed on 2019-08-12 (3 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 
20190418-12:10
  SourcePackage: linux-signed-oem-osp1
  UpgradeStatus: No upgrade log present (probably fresh install)

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[Kernel-packages] [Bug 1785912]

2019-05-30 Thread Bugs-i 
Oh well, worth a shot.

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https://bugs.launchpad.net/bugs/1785912

Title:
  Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
  Ideapad 720s 13IKB 81BV

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Horrible screen flicker from login screen and after login.  18.04.1 LTS.
  I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
  model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
  model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen 
flashing.

  Neither have the problem in Windows (ie hardware fine)

  I installed the standard Ubuntu 18.04 on each of them (same USB Key,
  few weeks apart) but only the 81BV / 8th gen / UHD 620 Rev 07 has the
  problem.

  Flickering visible on video here:
  https://photos.app.goo.gl/HCN73q1nQfgstgVBA

  I've used ubuntu-bug so I believe you have all the details of the
  machine.  The install came straight from your standard 18.04 download.
  Any changes are due to me trying to fix this (not much prev exp of
  kernel params etc)

  Things tried but which didn't work were:
  - enable huc/guc (got it to load - it's now visible in the attached dmesg - 
but didn't help.)
  - enable_rc6=0 (just stopped sleep / resume working)
  - edp_vswing=2

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
  ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
  Uname: Linux 4.15.0-30-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CompositorRunning: None
  Date: Tue Aug  7 23:09:14 2018
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA 
controller])
     Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
  InstallationDate: Installed on 2018-08-06 (1 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
   Bus 001 Device 003: ID 5986:210d Acer, Inc
   Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 81BV
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic 
root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 
i915.enable_guc_loading=1
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/02/2018
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6MCN27WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo ideapad 720S-13IKB
  dmi.modalias: 
dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
  dmi.product.family: ideapad 720S-13IKB
  dmi.product.name: 81BV
  dmi.product.version: Lenovo ideapad 720S-13IKB
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.91-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
  version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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[Kernel-packages] [Bug 1785912]

2019-05-28 Thread Bugs-i 
Working (fastset at boot):
[3.494890] [drm:intel_dump_pipe_config [i915]] dp m_n: lanes: 4; gmch_m: 
6213395, gmch_n: 8388608, link_m: 517782, link_n: 524288, tu: 64

Broken (modeset):
[  192.531640] [drm:intel_dump_pipe_config [i915]] dp m_n: lanes: 4; gmch_m: 
6213395, gmch_n: 8388608, link_m: 1035565, link_n: 1048576, tu: 64

in intel_dp.c:

bool constant_n = drm_dp_has_quirk(&intel_dp->desc,
   DP_DPCD_QUIRK_CONSTANT_N);

Replace with
bool constant_n = true;

And rebuild.

Could you test if it works then?

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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/1785912

Title:
  Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
  Ideapad 720s 13IKB 81BV

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Horrible screen flicker from login screen and after login.  18.04.1 LTS.
  I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
  model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
  model 81BV - Core i5 8250U - Intel UHD Graphics 620 Rev 07 - awful screen 
flashing.

  Neither have the problem in Windows (ie hardware fine)

  I installed the standard Ubuntu 18.04 on each of them (same USB Key,
  few weeks apart) but only the 81BV / 8th gen / UHD 620 Rev 07 has the
  problem.

  Flickering visible on video here:
  https://photos.app.goo.gl/HCN73q1nQfgstgVBA

  I've used ubuntu-bug so I believe you have all the details of the
  machine.  The install came straight from your standard 18.04 download.
  Any changes are due to me trying to fix this (not much prev exp of
  kernel params etc)

  Things tried but which didn't work were:
  - enable huc/guc (got it to load - it's now visible in the attached dmesg - 
but didn't help.)
  - enable_rc6=0 (just stopped sleep / resume working)
  - edp_vswing=2

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xserver-xorg-video-intel 2:2.99.917+git20171229-1
  ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
  Uname: Linux 4.15.0-30-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.2
  Architecture: amd64
  CompositorRunning: None
  Date: Tue Aug  7 23:09:14 2018
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA 
controller])
     Subsystem: Lenovo UHD Graphics 620 [17aa:39af]
  InstallationDate: Installed on 2018-08-06 (1 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0cf3:e500 Atheros Communications, Inc.
   Bus 001 Device 003: ID 5986:210d Acer, Inc
   Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 81BV
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic 
root=UUID=10eb4e00-26e4-4f42-b983-9a603a658f89 ro i915.enable_guc=3 
i915.enable_guc_loading=1
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/02/2018
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6MCN27WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo ideapad 720S-13IKB
  dmi.modalias: 
dmi:bvnLENOVO:bvr6MCN27WW:bd05/02/2018:svnLENOVO:pn81BV:pvrLenovoideapad720S-13IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoideapad720S-13IKB:
  dmi.product.family: ideapad 720S-13IKB
  dmi.product.name: 81BV
  dmi.product.version: Lenovo ideapad 720S-13IKB
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.91-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
  version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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