https://bugs.freedesktop.org/show_bug.cgi?id=108606
--- Comment #13 from Samantha McVey samantham@posteo.net --- Created attachment 142319 --> https://bugs.freedesktop.org/attachment.cgi?id=142319&action=edit amdgpu.ppfeaturemask=0xffff3fff resume from suspend lockup
Alex, So far it seems that I am not getting the gpu lockup I had previously with either amdgpu.ppfeaturemask=0xfffdbfff or amdgpu.ppfeaturemask=0xffff3fff. I tested again and I still get the gpu lockup without these options (this is without having any commit reverted).
I will try your patch and test that now.
NOTE: While using amdgpu.ppfeaturemask=0xffff3fff I had a graphics lockup on resume from suspend, with messages I don't remember seeing before. May or may not be related to the current issue.
NOTE2: I didn't mention it before, but I have a systemd hook which disables C6 states prior to suspend and enables them again after suspend. The reason for this is it fixes GPU lockups I have gotten on resume. (May be relevant to this current bug or could be unrelated, I'm not sure how the state of the CPU affects the GPU…).