Originally Posted by thefirstm
Can you try executing a 3D program, like GLXGears, while the video is playing? On my card, unless I do this to get it to throttle up, the performance is bad.
Interesting. Running glxgears while the video is playing does indeed appear to throttle up the card, considerably reducing the problem but not eliminating it. glxgears+mplayer is about on par with software only - still some dropped frames but nowhere near as many. Thankyou for the suggestion
I guess the next question is, how can I do this automatically? Have you found another way to do the same thing (or a way to leave it in high-performance mode) without glxgears?