[mythtv-users] Good TV Out (long -sorry)

[Chris Martin]

> This is what I call a 'straddle' event. If there is no retrace
> timing for the card, the frame buffer is updated at equal frame
> intervals unaware of when the actual retraces will occur. If the
> update and retrace are at almost the exact same time, the update
> could happen just before or just after the retrace deadline. This
> causes rapid jitter until they go out of sync again (pause would
> accomplish this). Ironically, the more accurate the timing, the
> longer these events last.

> Both OpenGL and DRM methods will get the retrace timing and can
> avoid this problem.
> 
> --  bjm


That makes sense; so presuming the ati drivers have OpenGL support,
how do I go ensuring that it is used?  Is it something that you have
to tell Mythtv to use at complie time (and if so is it in Axel's
RPMs), is it something you have to enable in xorg.conf or is it
something that has to be dealt with somewhere else?

thanks

Chris