[Bug 1849084] Re: Freeze on system-resume caused by kwin and amdgpu driver

[khitschler]

This is a very interesting observation! In one of my previous posts I described the fact that after the first unsuccessful resume and a following soft-reset with Alt+SysReq+B  all subsequent resumes will succeed. 
My guess was that there was something changed in the GPU's hardware registers before or after the first resume. It cannot be any software influence since the software started again. After a cold reset the game starts again. My assumption was that the GPU's hardware register change was volatile.

Maybe the "AMD Driver Auto-detect tool" stores this one time change non-
volatile in any kind of configuration storage element within the GPU.
Then it behaves the same like you described. Currently I do not know of
any dual use of drivers between Linux and Windows, but to have a built-
in non-volatile configuration storage supporting the GPU is very likely.

Unfortunately I do not have a dual boot machine. I'm running only Linux.
So I'll try to create a USB-stick based Windows 10 to verify your
experience. It will take some time.

Again, very interesting ...

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Title:
  Freeze on system-resume caused by kwin and amdgpu driver

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