[mythtv-users] Jumpy video

[David Watkins]

> Your video card isn't a Hauppauge - that's your tuner card.


..and it's your video card (whatever it is) which is likely to be more
sigificant.

If you're using an nvidia based card then you need to install the
nvidia binary drivers.  The standard 'nv' or 'nouveau' graphics
drivers can produce the poor playback performande that you're seeing.

http://www.mythtv.org/wiki/NVidiaProprietaryDriver

If you're not using an nvidia based graphics card then my advice would
be to go an get one - but other cards can be made to work.