(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.