While uvd video playback (no difference with mplayer, mpv or xbms) video
frequently stops at  the loop of  several frames, while sound move further. It
very similar to video from https://bugs.freedesktop.org/show_bug.cgi?id=73191
but loop is endless (if gpu will not hang there). Sometimes there are visible
screen corruptions (color squares) before video looping, sometimes gpu hangs up
before visible corruptions.
card - rv730 agp, 
kernels - 3.12.7, 3.13-rc7 and before.
mesa, drm, video - from oibaf ppa, i suppose it is current git (own compiled
give the same).
It looks like disabling ColorTiling2D  in xorg.conf.d solve this problem.