[mythtv-users] XvMC with Nvidia 7676 no change in CPU usage?

[Jerry Rubinow]

On 3/12/06, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
> On 3/11/06, Kevin Kuphal <kuphal at dls.net> wrote:
> > Steven Adeff wrote:
> > > I'm playing around with XvMC on my desktop/server since it has a
> > > FX5200 and I'm thinking of using it as a frontend for my bedroom. I've
> > > got Myth and mplayer compiled with XvMC support and both look like
> > > they're using xvmc when I enable them to, but what I don't see is any
> > > reduction in CPU usage with either.
> > > I'm running X as root to make sure I have full privileges as I test.
> > > I'm testing mostly with HD content since SD content uses so little CPU
> > > on my machine to begin with.
> > >
> > If you have a greyscale OSD, then you are using XvMC.  If your OSD is
> > color, you're not.  XvMC is selected in the playback settings for TV
> > where you pick your MPEG decoder (Standard, libmpeg2, XvMC, etc.).
> >
> > Kevin
>
> Ok, OSD is greyscale, so XvMC is on, and I'm noticing lots of
> stuttering when I bring up an OSD. But I'm still not seeing much, if
> any, of a reduction in CPU usage on playback though. Is there a way to
> "tune" xvmc or something?
>
> --
> Steve

I had to turn off OpenGL VSync before XvMC would work reliably for me.

-Jerry