[Intel-gfx] [PATCH 0/2] Add quirk to disable PSR 2 on Tongfang PHxTxX1 and PHxTQx1

[Werner Sembach]

Am 22.02.23 um 15:17 schrieb Werner Sembach:
> On these Barebones PSR 2 is recognized as supported but is very buggy:
> - Upper third of screen does sometimes not updated, resulting in
> disappearing cursors or ghosts of already closed Windows saying behind.
> - Approximately 40 px from the bottom edge a 3 pixel wide strip of randomly
> colored pixels is flickering.
>
> PSR 1 is working fine however.
>
> This patchset introduces a new quirk to disable PSR 2 specifically on known
> buggy devices and applies it to the Tongfang PHxTxX1 and PHxTQx1 barebones.
>
> Signed-off-by: Werner Sembach <wse at tuxedocomputers.com>
> Cc: <stable at vger.kernel.org>
>
>
Parralel to this there is a patch fixing the root cause of this issue: 
https://gitlab.freedesktop.org/drm/intel/-/issues/7347#note_1785094

So this quirk might only be relevant for stable kernels, depending on when that 
other patch gets merged.