Looks like Kernel 5.13 will fix it:
[pull] radeon, amdgpu drm-fixes-5.13
Edit:
Still present in 5.14.1, tried this build:
Maybe fixed in Kernel 5.15 ???
AMD Has An Important Suspend/Resume Fix With Linux 5.15 - Phoronix
Posts by cyablo
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Tried, still scrambled image and frozen system after resume.
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Just to let you know: Latest nightly, wakeup still not working on my AMD setup.
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Did a little bit of research, seems be a problem with kernel >= 5.8/5.9:
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Hi,
I just wanted to try LE10 on my AMD Athlon 200G. Everything is working fine so far, besides hibernate/standby. The system goes into sleep mode, but when I try to wake it up, the screen is all glitched and the system seems to be locked up, so no logs to post:
Using internal Vega 3 GPU.
Hibenrate/standby was working fine on LE9.2.
Regards
Daniel
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Decided to compile the master branch with 378.09 beta drivers, and getting weird results (black screen with a single underscore, nothing in the logs) when going into suspend. So I guess I'll try an older version 367.57 next.Thats excactly how v7.95.3 BETA behaved for me without any modification.
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Same for me (GT 610), Systems hangs when going to suspend and CPU gets very hot while system hangs. Fix worked for me, suspend is working now. THX