https://bugs.freedesktop.org/show_bug.cgi?id=64503
--- Comment #21 from Pierre Ossman pierre-bugzilla@ossman.eu --- Just to confirm this is a driver problem, I tried two things:
- Hooked up a Windows machine (also with a radeon card, although a different one)
- Installed fglrx on my Linux machine.
In both cases the playback was glitch free in 24 Hz.