ACK: [SRU] [J] [PATCH 0/1] Fix PSR flickers on Intel TGL laptops + AUO panel

Luke Nowakowski-Krijger luke.nowakowskikrijger at canonical.com
Thu Jul 7 20:18:43 UTC 2022


Acked-by: Luke Nowakowski-Krijger <luke.nowakowskikrijger at canonical.com>

On Wed, Jul 6, 2022 at 7:54 PM Kai-Heng Feng <kai.heng.feng at canonical.com>
wrote:

> BugLink: https://bugs.launchpad.net/bugs/1980087
>
> [Impact]
> Screen flickers on certain Intel TGL laptops + AUO panel.
>
> [Fix]
> Enable PSR2 selective fetch only for the specific case to minimize the
> regression risk.
>
> Previously an upstream version of PSR fix was pulled, but it caused an
> regressoin on ADL + BOE panel [1]. So use a more cautious approach here.
>
> [Test]
> Screen flickers can no longer be observed on affected laptops.
>
> [Where problems could occur]
> The fix becomes very specific, so any other combination won't be affected
> at
> all.
>
> [1] https://bugs.launchpad.net/bugs/1979626
>
> Kai-Heng Feng (1):
>   UBUNTU: SAUCE: drm/i915/display/psr: Fix flicker on TGL + AUO panel
>
>  drivers/gpu/drm/i915/display/intel_dp.c  |  2 +-
>  drivers/gpu/drm/i915/display/intel_dp.h  |  2 ++
>  drivers/gpu/drm/i915/display/intel_psr.c | 11 +++++++++++
>  3 files changed, 14 insertions(+), 1 deletion(-)
>
> --
> 2.36.1
>
>
> --
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