[mythtv-users] VGA verses HDMI

[Jay Foster]

On 9/30/2010 7:58 PM, mythtv-users-request at mythtv.org wrote:
> I wrote:
>
>> >Kevin Ross wrote:
>> >
>>> >>What you describe is called tearing,
>> >
>> >Yep, that's it
>> >http://en.wikipedia.org/wiki/Video_tearing
>> >shows exactly what I see.
>> >
>>> >>    and is not caused by the frame rate.  If you're using VDPAU, it's
>>> >>usually caused by not disabling compositing.  You can disable it by
>>> >>running:
>>> >>
>>> >>sudo nvidia-xconfig --no-composite
>>> >>
>>> >>and then restart X (or reboot).
>> >
>> >No, not using Nvidia - it's an Intel chipset in the box, and I think
>> >I'm probably still using whatever the defaults are (were) in
>> >MythBuntu 9.04(?) with Myth 0.21.
>> >A quick look at the settings (via MythWeb) shows that I've got
>> >"CPU+" set as DefaultVideoPlaybackProfile
> So I went into setup again, and turned on the option to OpenGL sync
> to the vertical frame sync. The tearing seems to have gone:-)
>
> So thanks Kevin for prompting me to look at the right culprit.
>
> -- Simon Hobson
Consider yourself fortunate.  I tried that too, but it made no 
difference.  I have never found a way to prevent tearing with video in 
Linux.