https://bugs.freedesktop.org/show_bug.cgi?id=73320
--- Comment #26 from Jakob Nixdorf flocke@shadowice.org --- Like I said in my last comment, with your branch the GPU locks up after a (very) short while. I don't have time at the moment (final exams), but I will try to debug it as soon as I get the time (maybe in 4 weeks), if it isn't fixed until then.