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@xxxxxxxxxxxxxxxxxxx> > Cc: <stable@xxxxxxxxxxxxxxx> > >
