Disable the i915.psr2 on AUO(0x06,0xaf,0xa3,0xc3) panel

Bug #2067980 reported by AceLan Kao
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
New
Undecided
Unassigned
linux (Ubuntu)
Fix Released
Undecided
Unassigned
Jammy
Invalid
Undecided
Unassigned
Noble
Fix Released
Undecided
Unassigned
linux-oem-6.5 (Ubuntu)
Invalid
Undecided
Unassigned
Jammy
Fix Committed
Undecided
AceLan Kao
Noble
Invalid
Undecided
Unassigned

Bug Description

[Impact]
In Dell oem project, we found the graphic is flickering on some
machines, finally we narrowed down the issue on (some specific panels +
i915.psr2 enabled), and the issue was reported to Intel, Intel fixed
the issue in the most recent mainline kernel.

It is hard to backport the patches to oem-6.5, so we wrote
a workaround patch to disable the psr2 for those pannels in the oem-6.5.

[Fix]
A quirk to disable psr2 on the AUO panel.

The real fix has been merged into noble and 6.8-oem kernels.

[Test]
1. boot up and moving the cursor around every cornors of the screen
2. it should shows the graphics well and no flicks

[Where problems could occur]
The quirk only affects the listed panel, so there should be no impact on other panels.
And disable psr2 never introduce regressions, just impact run time power consumption a little bit.

AceLan Kao (acelankao)
Changed in linux-oem-6.5 (Ubuntu Jammy):
status: New → In Progress
assignee: nobody → AceLan Kao (acelankao)
Changed in linux-oem-6.5 (Ubuntu):
status: New → Invalid
tags: added: oem-priority originate-from-2067366 somerville
LEE KUAN-YING (kyyc0426)
Changed in linux (Ubuntu Noble):
status: New → Invalid
status: Invalid → Fix Released
Changed in linux (Ubuntu Jammy):
status: New → Invalid
Changed in linux-oem-6.5 (Ubuntu Noble):
status: New → Invalid
Changed in linux (Ubuntu):
status: New → Fix Released
Changed in linux-oem-6.5 (Ubuntu Jammy):
status: In Progress → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-oem-6.5/6.5.0-1025.26 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-jammy-linux-oem-6.5' to 'verification-done-jammy-linux-oem-6.5'. If the problem still exists, change the tag 'verification-needed-jammy-linux-oem-6.5' to 'verification-failed-jammy-linux-oem-6.5'.

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: kernel-spammed-jammy-linux-oem-6.5-v2 verification-needed-jammy-linux-oem-6.5
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