(In reply to Christian König from comment #37)
> Created attachment 115398 [details] [review] [review]
> Something to test
> 
> Just an idea I had recently what this issue could be. Please test the
> attached patch and see if it works or not.

The patch made things on my system even worse. Before, playing a movie with VLC
and VDPAU enabled resulted in random screen freezes after some time, while with
the patched kernel the freeze happens immediately as I start playing, all the
times.

Tested with Mobility Radeon HD3400 (RV620) on ArchLinux 64 bit with linux-ck
4.0.1, mesa 10.5.4, mesa-vdpau 10.5.4 and libvdpau 1.1.