Disable the i915.psr2 on AUO(0x06,0xaf,0xa3,0xc3) panel
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 Released
|
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.
CVE References
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 |
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 |
tags: |
added: verification-done-jammy-linux-oem-6.5 removed: verification-needed-jammy-linux-oem-6.5 |
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!