(In reply to comment #50)
> (In reply to comment #49)
> > (In reply to comment #48)
> > > The display went black a couple of time and according to dmesg/journal, it was
> > > related to texelFetch segfaulting in llvm [...]
> > 
> > 'The display went black a couple of time' sounds like GPU resets after
> > lockups, which are unlikely to be directly related to segfaulting piglit
> > tests FWIW.
> 
> Maybe, but I have no other indication. Also, I'm pretty that, when in auto
> power level, when I run my piglit tests, it locks at there.
> 
> Another thing I noticed: if I run the quick piglit tests at a low power
> level, the total number of passed tests is higher than when I run it at an
> higher speed. The failing tests explaining this difference are mostly
> texelFetch related. I'll send the piglit results from both runs once I'll
> have set back mclk to its default value.

Oops, "... I'm pretty that..." -> "... I'm pretty sure that..."