"A reader left a comment on the original story that his ATI video drivers do not work at all with Compiz and video playback, or particularly well with WINE. I have not personally seen this problem, but I've heard others talk about similar issues (with different card manufacturers). This is, however, a complicated issue to deconstruct. I don't think it can honestly be said that the device in question isn't supported. I am making the assumption that whatever driver module is being used -- fglrx, radeon, ati -- works with the compositor disabled, or perhaps even with it enabled, but without video files playing. I am going to avoid the definition of "supported" in this case, as it can mean different things depending on device and user. The driver works, but not in the way that is necessarily desired, or expected. It may be a bug, it may be that the device is better described as "partially supported" or -- and this is the hard part to determine in the case of the graphics driver -- it could be something else entirely."
