[mythtv] Interesting video jitter effect

Ed Wildgoose lists at wildgooses.com
Thu Dec 2 11:47:26 UTC 2004


Kyle Rose wrote:

>>I think you're probably seeing an effect that's taken care of in the 
>>video sync methods that can actually track the retrace time (phase) of 
>>the video refresh, rather than just its period.  Those methods are 
>>nVidia, DRI (I think), and OpenGL.  nVidia works for driver versions 
>>43xx and older, and OpenGL works (properly) for 6111 and newer.
>>    
>>
>
>Is there anything special I need to do to get OpenGL sync to work?
>I've got the OpenGL-related lines in settings.pro uncommented, and I
>have the nvidia-glx/nvidia-kernel-common/nvidia-kernel-`uname -r`
>packages installed, yet mythfrontend still reports that it's using the
>RTC method for video sync. 
>

Not sure.  Try an earlier version of the driver (I have 6111) and see if 
this makes a difference?

It has helped a lot for me, so please don't let it slide if there is 
something that could be fixed

Good luck

Ed W


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