lkml.org 
[lkml]   [2023]   [Feb]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 0/2] Add quirk to disable PSR 2 on Tongfang PHxTxX1 and PHxTQx1
Date
On Wed, 2023-02-22 at 15:17 +0100, Werner Sembach wrote:
> 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.

I've been thinking something similar as there is still at least one
issue which seems to be like panel side issue:

https://gitlab.freedesktop.org/drm/intel/-/issues/7836

Did you considered dpcd_quirk_list in drivers/gpu/drm/drm_dp_helper.c?

I'm not sure which one is more correct though...

>
> Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
> Cc: <stable@vger.kernel.org>
>
>

\
 
 \ /
  Last update: 2023-03-27 00:34    [W:0.097 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site