[mythtv-users] VGA verses HDMI

Kevin Ross kevin at familyross.net
Fri Oct 1 17:23:00 UTC 2010


  On 09/30/2010 03:53 PM, Simon Hobson 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.
>

Excellent, glad I could help!

-- Kevin



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