[Bug 2067980] Re: Disable the i915.psr2 on AUO(0x06,0xaf,0xa3,0xc3) panel

** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New

** Also affects: linux (Ubuntu Noble)
Importance: Undecided
Status: New

** Also affects: linux-oem-6.5 (Ubuntu Noble)
Importance: Undecided
Status: New

** Changed in: linux (Ubuntu Noble)
Status: New => Invalid

** Changed in: linux (Ubuntu Noble)
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

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https://bugs.launchpad.net/bugs/2067980

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

Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.5 source package in Jammy:
Fix Committed
Status in linux source package in Noble:
Fix Released
Status in linux-oem-6.5 source package in Noble:
Invalid

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.

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