https://bugs.freedesktop.org/show_bug.cgi?id=110304
--- Comment #1 from Michel Dänzer michel@daenzer.net --- (In reply to Christian Zigotzky from comment #0)
Which update between the RC1 and RC2 could be responsible for the VLC issue?
None of them directly affect the radeon driver.
It's quite likely that this is a PPC specific issue. Your best bet is bisecting between rc1 and rc2.