Re: VDPAU and KDE 4.8 compositing = slow
That helps. Well, with mplayer at least. When you switch to fullscreen though and then back, the whole screen goes green and you have to blindly kill applications.
How do I use different settings for fullscreen vs windowed mode?
Furthermore, mplayer might be configurable, but Adobe Flash is not. When using VDPAU with Flash, the same problem appears. In this day and age, compositing is the default with the majority of Linux desktops. VDPAU should be able to work with it.