[SRU] [H/I/Unstable/OEM-5.13] [PATCH 0/1] Fix wobbly graphics regression

[Stefan Bader]

On 09.08.21 07:09, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1936708
> 
> [Impact]
> Wobbly graphics after a kernel update.
> 
> [Fix]
> Older panels may require more bandwidth then advertised, so we need to
> use max params for them.
> 
> [Test]
> Multiple users tested with positive result.
> 
> [Where problems could occur]
> This patch reverts to the old behavior, which is to use max parameters,
> for older panels. If there's any new panel reports with older DP
> version, this might change the behavior on it.
> 
> Kai-Heng Feng (1):
>    UBUNTU: SAUCE: drm/i915/dp: Use max params for older panels
> 
>   drivers/gpu/drm/i915/display/intel_dp.c | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)
> 

What is unclear here is whether this is something that is expected to go 
upstream or not. And if not, is this some temporary work-around and what would 
be the ETA for a proper fix. Or when not temporary, why should we deviate (and 
risk unexpected side-effects) from upstream?

-Stefan

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