https://bugs.freedesktop.org/show_bug.cgi?id=39782
--- Comment #1 from Michel Dänzer michel@daenzer.net 2011-08-02 23:21:47 PDT --- Does your X driver have commit f59c3b294b0f715fc96e2bbe25893f2b31aa488b ('Register XvMC video decoding acceleration') required for XvMC?