(In reply to comment #117)
> Well, I'm still on Chromium, and I've forced my GPU from the backlist,
> because if you don't then it doesn't use all accel so it should be okay.
> Anyways, I turned off DPM and have no crashing at all, Chromium seems
> stable, LibreOffice seems stable, and also when you turn off DPM, the
> "Screen Jumping/corruption" goes away. It seems to be proportional to number
> of crashes, too. Which I have seen it go away, and no crashes now, so maybe
> it's related. But without DPM I'd say my GPU is now stable. My R9 270X is
> ASUS brand from about January, if that would help figure what hardware it
> has.

Well, it points out a problem with dpm. Maybe the uvd class is problematic?