[mythtv-users] NVP: Video is 30 frames behind audio (too slow), dropping frame to catch up

Kevin Kuphal kkuphal at gmail.com
Sat Feb 9 03:06:49 UTC 2008


On Feb 8, 2008 5:59 PM, Mark Hutchinson <mark at onnow.net> wrote:

> All done
> I still have dropped frames, poor quality video and sound as a result.
> Tons of this in the mythfrontend log:
> 2008-02-08 16:59:05.808 NVP: Video is 30 frames ahead of audio,
>                        doubling video frame interval to slow down.
> 2008-02-08 16:59:05.875 NVP: Video is 30 frames ahead of audio,
>                        doubling video frame interval to slow down.
> 2008-02-08 16:59:05.942 NVP: Video is 30 frames ahead of audio,
>                        doubling video frame interval to slow down.
> 2008-02-08 16:59:06.008 NVP: Video is 30 frames ahead of audio,
>                        doubling video frame interval to slow down.
> 2008-02-08 16:59:06.075 NVP: Video is 30 frames ahead of audio,
>                        doubling video frame interval to slow down.
> 2008-02-08 16:59:06.142 NVP: Video is 30 frames ahead of audio,
>                        doubling video frame interval to slow down.
> 2008-02-08 16:59:06.143 WriteAudio: buffer underrun


Seems weird to me that it is a constant 30.  Do you happen to know what
modeline/refresh your video card is outputting to your TV?

Kevin
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