Horizontal corrupted line at top of screen caused by framebuffer compression
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
| Linux |
Invalid
|
Critical
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|||
| linux (Ubuntu) |
Fix Released
|
Undecided
|
You-Sheng Yang | ||
| Bionic |
Invalid
|
Undecided
|
Unassigned | ||
| Disco |
Invalid
|
Undecided
|
Unassigned | ||
| Eoan |
Fix Released
|
Undecided
|
You-Sheng Yang | ||
| linux-oem-osp1 (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
| Bionic |
Fix Released
|
Undecided
|
You-Sheng Yang | ||
| Disco |
Fix Released
|
Undecided
|
Unassigned | ||
| Eoan |
New
|
Undecided
|
Unassigned | ||
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:/
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_
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-
ProcVersionSign
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
DistributionCha
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://
canonical-
InstallationDate: Installed on 2019-08-12 (3 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20190418-12:10
SourcePackage: linux-signed-
UpgradeStatus: No upgrade log present (probably fresh install)
| You-Sheng Yang (vicamo) wrote | #1 |
| no longer affects: | linux-signed-oem-osp1 (Ubuntu) |
| Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote Missing required logs. | #2 |
| Changed in linux (Ubuntu): | |
| status: | New → Incomplete |
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#8 |
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#9 |
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#10 |
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#11 |
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#12 |
| Changed in linux (Ubuntu): | |
| status: | Incomplete → In Progress |
| You-Sheng Yang (vicamo) wrote | #4 |
| Changed in linux (Ubuntu): | |
| assignee: | nobody → You-Sheng Yang (vicamo) |
| tags: | added: patch |
|
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#13 |
| You-Sheng Yang (vicamo) wrote | #5 |
| Timo Aaltonen (tjaalton) wrote | #6 |
| Changed in linux (Ubuntu Bionic): | |
| status: | New → Invalid |
| Changed in linux (Ubuntu Disco): | |
| status: | New → Invalid |
| Changed in linux-oem (Ubuntu Bionic): | |
| status: | New → Invalid |
| Changed in linux-oem (Ubuntu Disco): | |
| status: | New → Invalid |
| Changed in linux-oem (Ubuntu Eoan): | |
| status: | New → Invalid |
| no longer affects: | linux-oem (Ubuntu) |
| no longer affects: | linux-oem (Ubuntu Bionic) |
| no longer affects: | linux-oem (Ubuntu Disco) |
| no longer affects: | linux-oem (Ubuntu Eoan) |
| tags: | added: oem-priority originate-from-1836993 somerville |
| You-Sheng Yang (vicamo) wrote | #7 |
| Changed in linux-oem-osp1 (Ubuntu Bionic): | |
| assignee: | nobody → You-Sheng Yang (vicamo) |
| status: | New → In Progress |
| description: | updated |
| Changed in linux: | |
| status: | Unknown → Confirmed |
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#14 |
| Changed in linux: | |
| importance: | Unknown → Critical |
| Changed in linux (Ubuntu Eoan): | |
| status: | In Progress → Fix Committed |
| Changed in linux-oem-osp1 (Ubuntu Bionic): | |
| status: | In Progress → Fix Committed |
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#15 |
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#16 |
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#18 |
| Launchpad Janitor (janitor) wrote | #17 |
| Changed in linux (Ubuntu Eoan): | |
| status: | Fix Committed → Fix Released |
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#20 |
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#21 |
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#22 |
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#23 |
| Changed in linux: | |
| status: | Confirmed → Invalid |
| Timo Aaltonen (tjaalton) wrote | #24 |
| tags: | added: verification-needed-bionic |
| tags: |
added: verification-done-bionic removed: verification-needed-bionic |
| Launchpad Janitor (janitor) wrote | #25 |
| Changed in linux-oem-osp1 (Ubuntu Bionic): | |
| status: | Fix Committed → Fix Released |
| Changed in linux-oem-osp1 (Ubuntu Disco): | |
| status: | New → Fix Released |
| Changed in hwe-next: | |
| status: | New → Fix Released |
|
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#27 |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1840236
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.