[mythtv-users] Enabiling OpenGL vertical sync

[Mark Kendall]

2008/9/9 Jean-Yves Avenard <jyavenard at gmail.com>:
> Hi.
>
> Despite all my attempt to get a jitter free playback I have failed to
> get something that play 100% smoothly.
>
> During the credits or if you have text scrolling from right to left
> you can clearly see the movement is slightly stuttering.
> Nothing major but it's annoying me ; especially as the picture is just
> perfect when using the TV built-in TV digital tuner (Sony Bravia 46"
> X) just not with mythtv.

This sounds more like a refresh rate issue. Are you playing back
PAL/50Hz material on a display setup at 60Hz?

> The front end is a mac mini with a 2.33GHz Core 2 Duo with an Intel
> GMA 950 ; TV is connected via a DVI cable
>
> I tried enable OpenGL vertical sync ; however I get errors on the
> console and the video only show static images
> Has anyone had experience getting OpenGL sync working with an Intel GMA 950 ?

What does glxinfo say?

> As a side note, I have never managed to get OpenGL working perfectly
> on this machine, the deinterlacer doesn't seem to work and any white
> text is blinking a lot.

If you're referring to the opengl video renderer, I doubt you'll get
much mileage using the opengl deinterlacers with these graphics
chipsets. They're not built for 3d speed and the use of shared memory
will slow things down even further.

Regards

Mark