APPLIED[L]: [SRU] [J/Unstable/OEM-6.1] [PATCH 0/3] Some QHD panels fail to refresh when PSR2 enabled

[Andrea Righi]

On Fri, Mar 03, 2023 at 10:51:01AM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/2009014
> 
> [Impact]
> Some QHD (2560x1440) panels which support PSR2 refresh the display
> abnormally. The display frequently stop responding for few seconds on
> all user interactions, ex. mouse movement, TTY and any APP GUI. There's
> no problem on the external monitor. After disabling PSR, the problem
> will be gone.
> 
> [Fix]
> Intel release a fix to calculate the wake up line count and configure
> them into PSR2_CTL accordingly.
> 
> [Test]
> Verified on the problematic panels to check if the display responds
> smoothly to mouse movement.
> 
> [Where problems could occur]
> Only affects the panels on some particular panels which supports PSR2

Applied to lunar/linux.

Thanks,
-Andrea