[mythtv-users] XvMC and high CPU usage

Kevin Kuphal kuphal at dls.net
Tue Mar 21 14:15:09 UTC 2006

Jerry Rubinow wrote:
> On 3/21/06, Kevin Kuphal <kuphal at dls.net> wrote:
>> On FC4, I get the grey OSD and the logs report XvMC is being used but my
>> CPU usage is high.  I can *barely* get the video to play properly using
>> libmpeg2 but the picture seems a little jumpy.  My configure script says
>> I'm linking with libXvMCNVIDIA as expected.  My OpenGL Vsync is working
>> as I'm using the 7676 nvidia driver (changing it makes things worse for
>> libmpeg2 performance).
> Did you try turning off OpenGL Vsync?  It may make libmpeg2 worse, but
> it improved XvMC for me.
Yes.  I have no problem with OpenGL Vsync as I'm using 7676 which has no 
problems.   Is your CPU dramatically reduced with XvMC?  What xorg 
version are you running?


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