** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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Packages, which is subscribed to linux-oem-6.0 in Ubuntu.
https://bugs.launchpad.net/bugs/2002968
Title:
Fix flicker display problem on some panels which support PSR2
Status in HWE Next:
New
Status in OEM Priority Project:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.0 package in Ubuntu:
Invalid
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.0 source package in Jammy:
Fix Released
Status in linux-oem-6.1 source package in Jammy:
Fix Released
Status in linux source package in Lunar:
Fix Released
Status in linux-oem-6.0 source package in Lunar:
Invalid
Status in linux-oem-6.1 source package in Lunar:
Invalid
Bug description:
[Impact]
On some PSR2 supported panels, which connects to Intel Graphics has flicker
symptom. It gets normal after booting the kernel with parameter `i915.
enable_psr=0`
[Fix]
Backport one patch from upstream.
https://cgit.freedesktop.org/drm-tip/commit/drivers/gpu/drm/i915/display/intel_psr.c?id=084aab04cc60e5eab32287d0483c33e12c92da87
[Test]
Booting the patched kernel with problematic panel (LGD LCD_VD78M), check if
the display has abnormal flickering problem on graphics interfaces.
[Where problems could occur]
The risk of regression is low. It only fixes problem on panels which support
PSR2.
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