APPLIED [OEM-5.14] Re: [PATCH 0/2][SRU][OEM-5.14] Choppy trackpad/USB mouse on AMD Rembrandt with PSR enabled panel
Timo Aaltonen
tjaalton at ubuntu.com
Thu Mar 17 17:21:06 UTC 2022
You-Sheng Yang kirjoitti 16.3.2022 klo 9.51:
> BugLink: https://bugs.launchpad.net/amd/+bug/1964850
>
> [Impact]
>
> Disjoint trackpad/mouse path found on PSR capable panels.
>
> [Fix]
>
> Two fixes from v5.17-rc6 that only turns off vblank IRQs when PSR is not
> enabled, originally for commit f94cf1cb1796 ("drm/amdgpu/display: set
> vblank_disable_immediate for DC") that was being backported to LTS stable
> 5.15.y, and therefore oem-5.14.
>
> [Test Case]
>
> Simply move the mouse around.
>
> [Where problems could occur]
>
> This follows for AMD platforms, the power-saving performance may not be
> as good as before, but while we don't have such energy-saving
> certificate program for AMD yet, this would become something to be fully
> addressed in the future.
>
> [Other Info]
>
> These fixes have been applied to v5.15.27, and oem-5.14 currently has
> v5.15.25 in -1028, therefore only oem-5.14 is nominated, but probably
> they will still be included through stable patch backport in the next
> release.
>
> Michel Dänzer (1):
> drm/amd/display: For vblank_disable_immediate, check PSR is really
> used
>
> Nicholas Kazlauskas (1):
> drm/amdgpu/display: Only set vblank_disable_immediate when PSR is not
> enabled
>
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
applied to oem-5.14, thanks
--
t
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