[mythtv-users] What do I have to do to get HD working?

Kevin Kuphal kuphal at dls.net
Fri Apr 14 21:29:45 UTC 2006


Kevin Kuphal wrote:
> I'm about at my wits end.  I just purchased a P4 3.2ghz HT to do HDTV 
> playback in software but no matter what I do, I get continual studdering 
> and "Video X frames ahead of audio" on my HD playback material.  This 
> happens on my MX4000 PCI video card system, my ATI 9100 IGP video card 
> system, and my Unichrome Pro video card system. 
>
> Everything I read said that a P4 3.2 is enough to do HD but nothing I do 
> can get it to work.  I'm running the 2.6.15 smp kernel but that almost 
> seems to make it worse.  With the non-smp on my Unichrome system it 
> plays back but only at about 17-20 fps.  With the smp kernel, it does 
> the 29-30 but jumps and skips complaining about the video ahead of audio.
>
> Please, anyone have any help?
>
>   
More information:  If i toggle the Extra audio buffering the playback 
settings it goes from "Video is ahead of audio" to "Audio is ahead of video"

I don' t know if that helps, but...

Kevin


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