APPLIED Re: [SRU][OEM-5.17][PATCH 0/1] Fix output issue of USB-C to DP dongle on AMD

Timo Aaltonen tjaalton at ubuntu.com
Thu Sep 8 13:46:14 UTC 2022


Aaron Ma kirjoitti 5.9.2022 klo 11.42:
> BugLink: https://bugs.launchpad.net/bugs/1988721
> 
> [Impact]
> There is no output of external 4k DP monitor via USB-C to DP dongle.
> 
> [Fix]
> Isolate link training sequence, the external DP monitor will be good.
> 
> [Test]
> Verified on hardware, external 4k monitor works fine after re-plugin and suspend.
> 
> [Where problems could occur]
> It may break the display output on AMD GPU.
> 
> This commit is from 5.18-rc1, and no issue on jammy kernel.
> SRU for oem-5.17 only.
> 
> George Shen (1):
>    drm/amd/display: Refactor fixed VS logic for non-transparent mode
> 
>   .../gpu/drm/amd/display/dc/core/dc_link_dp.c  | 102 +++++++++++++++++-
>   1 file changed, 97 insertions(+), 5 deletions(-)
> 

applied to oem-5.17, thanks


-- 
t




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