An upload of xserver-xorg-video-amdgpu to jammy-proposed has been
rejected from the upload queue for the following reason: "This looks
like an SRU-acceptable bug, but the uploaded package has weirdly-doubled
patches and FTBFS. Please fix and reupload a package that builds! ☺".

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1987038

Title:
  Fix slow refresh rate when AMD GPU screen in reverse prime mode

Status in HWE Next:
  New
Status in xserver-xorg-video-amdgpu package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-amdgpu source package in Focal:
  Confirmed
Status in xserver-xorg-video-amdgpu source package in Jammy:
  Confirmed
Status in xserver-xorg-video-amdgpu source package in Kinetic:
  Fix Released

Bug description:
  [Impact]
  When AMD GPU is a GPU screen using reverse prime and its the only display, 
the fresh rate is very slow.

  [Fix]
  Enable present extension for GPU screen so it can be a viable CRTC to be 
selected.

  [Test]
  On a I+A laptop and external displays are routed to AMDGPU, disable internal 
display like closing lid can observe the issue.

  With the fix applied, the external display becomes very smooth.

  [Where problems could occur]
  I personally don't see why GPU screen can't use present extension, but this 
is Xorg so there might be some arcane reasons I didn't think of.

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