[mythtv-users] MythTv with Via EPIA M10000 board (low qualitydisplay, jitter and picture sharpness)

[Henk Poley]

> Van: Ivor Hewitt <ivor at ivor.org>
> On Saturday 21 February 2004 21:45, Terry Barnaby wrote:
> >
> > The main issue was jitter of the image. I finally found that I had to
> > enable "Use Video As Timebase"
> > option. It appears that this enables either synchonisation to the
> > graphics card, or if this is
> > not available uses the Linux real time clock to synchronise output.
> > Without this usleep() is
> > used ....
>
> Hmm, thought I'd check that out, but have to report that using video as 
> timebase produces a considerably worse playback for me! Although it
should 
> be possible to catch the cle266 vblank flag instead.

I had the same problem, mailed the patch maintainer. He said MythTV
currently has only support for nVidia vsync reading. And as non-root it
will even fall back to usleep() which would be quite horrible (like you and
I saw).

	Henk Poley <><