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Old 01-07-06, 02:36 PM   #7
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Join Date: Jul 2005
Posts: 46
Default Re: 8178 driver, VBLANK sync and CPU usage

Originally Posted by morgoth
"mplayer -vo gl:swapinterval=3 foo.avi" seem to reproduce the same problems of CPU usage: I display a 25 fps video on a 75Hz display => swapinterval=3, CPU=100%. I'm not sure that mplayer code is really clean and uses GLXWaitVideoSync, so it would be better to code a simple program to reproduce the pb. But the symptoms are the same.
I sure hope that at least in this case the MPlayer code is clean :-)
Anyway, it uses glXSwapIntervalSGI (GLX_SGI_swap_control extension), since I never got GLXWaitVideoSync to work (probably stupidty on my part).
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