(In reply to Takashi Iwai from comment #1) > I'm building a test kernel with the possible upstream fix patch. > Please give it a try later. Powersave works perfectly with kernel 5.14.21-150400.1.g8c84ccd-default. Also waking up from suspend works properly although I had to power off/on my monitor before login screen was visible but I think it's more likely to be monitor problem than kernel/amdgpu problem.