https://bugzilla.kernel.org/show_bug.cgi?id=211425
--- Comment #14 from Alex Deucher (alexdeucher@gmail.com) --- Renoir and vega10 are two different GPUs. They have the same gfx core, but most other things are different (different display hardware, different multi-media hardware, etc.). The atombios errors are related to the display handling. Does it work ok if you let the desktop manager blank the displays automatically rather than physically turning them off?