[SRU][Jammy][PATCH 0/1] Fix amd display corruption on s2idle resume

Aaron Ma aaron.ma at canonical.com
Fri Jun 10 01:41:25 UTC 2022

BugLink: https://bugs.launchpad.net/bugs/1978244

Screen corruption can occur when s2idle resume.

Check that DMCUB is running and wait for auto-load.

Verified on hardware, stress s2idle and passed.

[Where problems could occur]
Low risk, It may break s2idle on AMD GPU driver.

This commit is in 5.17.
OEM kernels already got this commit.

Nicholas Kazlauskas (1):
  drm/amd/display: Don't reinitialize DMCUB on s0ix resume

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 30 +++++++++++++++++--
 1 file changed, 27 insertions(+), 3 deletions(-)


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