https://bugs.freedesktop.org/show_bug.cgi?id=77394
--- Comment #11 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #10)
(In reply to comment #9)
Do you still get lockups without forcing the power level to high?
Normal desktop use seems stable as long as I don't use mplayer.
You shouldn't need to force it. On auto the hw will automatically switch between levels based on load.
I thought automatic switching is what dpm is about? Anyway setting power_profile to auto gave me an immediate lockup just like the high profile.
Correct. Auto is the default power profile. So it appears that changing the state causes a problem.