[PATCH 0/1][SRU][OEM-5.6]Fix no video out from some monitors on amdgpu

Aaron Ma aaron.ma at canonical.com
Fri Oct 23 07:07:22 UTC 2020


BugLink: https://bugs.launchpad.net/bugs/1901135

[Impact]
On some models of Dell monitors, amdgpu lost signal.
Blackscreen only.

[Fix]
Handle aux write failure, and retry it to fix it.

[Test Case]
Verified on the monitors, display OK.

[Regression Potential]
Low,
Upstream fix, Verified with positive results.
Focal and Groovy already got this fix.

Wayne Lin (1):
  drm/amd/display: Retry AUX write when fail occurs

 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.28.0




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