[fritsch]

On topic: your ACPI errors are gone (loglevel, btw. not our fault your have broken dsdt tables); your hw acceleration returned after rebooting. Both logs you showed use of VDPAU (which your AMD uses) just fine. 

HEVC-8 bit will work with VDPAU. HEVC-10 bit won't as vdpau does not support it.