https://bugs.freedesktop.org/show_bug.cgi?id=39222
--- Comment #1 from Micael Dias kam1kaz3@gmail.com 2011-07-14 07:28:18 PDT --- Not sure if this is relevant:
$ VDPAU_DRIVER=r600 LD_LIBRARY_PATH=/usr/lib/vdpau vdpauinfo display: :0 screen: 0 Failed to open VDPAU backend /usr/lib/vdpau/libvdpau_r600.so: undefined symbol: drmIoctl Error creating VDPAU device: 1