The fedora screen flickers

Ask Fedora
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3

Hi happy game and welcome,

This could be caused by a bug with integrated AMD graphics that is related to the powersaving mechanisms of the GPU.

If that is the case, there are two things you can try as a workaround:

  1. A quick GPU recovery that may work as a temporary fix when it happens:
$ sudo cat /sys/kernel/debug/dri/1/amdgpu_gpu_recover
  1. Kernel parameters that you can try to disable GPU powersaving features:
amdgpu.dcdebugmask=0x210

or,

amdgpu.dcdebugmask=0x10

(will potentially increase power usage slightly)

If none of the workarounds have an effect, then it’s probably best to wait for an upstream fix in the kernel.

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