[mythtv-users] XvMC and high CPU usage

[Tom Dombrosky]

On 3/21/06, Kevin Kuphal <kuphal at dls.net> wrote:
>
> 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?
>
> Kevin
>
>
Definitely don't use the 8xxx series drivers.  I'm using 7676 with the only
problem being skipping when the osd appears.  I have a nforce4 MX AGP card
running on a gentoo system.

Tom
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