** Changed in: hwe-next
Status: New => Fix Committed
** Changed in: hwe-next
Importance: Undecided => Critical
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https://bugs.launchpad.net/bugs/1983297
Title:
Additional fix for TGL + AUO panel flickering
Status in HWE Next:
Fix Committed
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Jammy:
Fix Committed
Bug description:
[Impact]
"UBUNTU: SAUCE: drm/i915/display/psr: Fix flicker on TGL + AUO panel"
alone used to fix the issue on the AUO panel. But the panel starts to
flicker like crazy on top of the new stable commits.
[Fix]
Backport full fix for PSR2 selective fetch, but only enable it on TGL +
specific AUO panel. The last three patches which enable PSR2 on ADL-P
are dropped.
[Test]
Originally the backport regressed ADL + BOE panel, so this time we
put extra effort to ensure those system are unaffected, while TGL + AUO
panel is still fixed.
[Where problems could occur]
Most code changes only have functional impact when PSR2 selective fetch
is enabled. Some of changes are under more general call path for
hardware cursor rendering.
Notes are added to describe the functional impact for each patch, so if
regression really occurrs it's easier to spot the offending commit.
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