[mythtv-users] Myth 0.14 - Version 1.0??

[Isaac Richards]

On Monday 09 February 2004 02:46 pm, steve at nexusuk.org wrote:
> > 	This requires GL as the output driver then, no?  I can't find a
> > reference to vsync in the Xv docs, but it's in the NVIDIA driver readme
> > for __GL_SYNC_TO_VBLANK.
>
> AFAIK Xv doesn't support vsync at all.  Myth uses the /dev/nvidia0 device
> to trigger a frame draw at the right time.  Basically to do vsync the
> driver can do it 2 different ways:

Most Xv drivers will only flip pages on the refresh, eliminating tearing.  For 
the app to know when that will happen, however, is what mythtv uses 
the /dev/nvidia0 device for.

Isaac