https://bugs.freedesktop.org/show_bug.cgi?id=74420
--- Comment #10 from Michel Dänzer michel@daenzer.net --- (In reply to comment #8)
Were you able to identify the faulty code?
It's not that simple. Something is causing the GPU to hang, but it can be tricky to isolate what exactly that is.
Please try eliminating some variables, e.g.: Does it also happen with radeon.dpm=0? Does it also happen if you disable / enable compositing? ...