[mythtv-users] What do I have to do to get HD working?
marcone at xs4all.nl
Sat Apr 15 00:11:57 UTC 2006
>Marco Nelissen 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?
>> Forget about getting it to work with a PCI video card. The PCI bus doesn't
>> have the bandwidth for HD video.
>This is why I moved to the Unichrome Pro and ATI IGP 9100 systems. I
>have an MX440 AGP I can use as well as a 6200 nvidia. But even on the
>Unichrome Pro which, should by all accounts, be able to do this, I still
>had the same problems. BTW, I'm driving 800x600 on an SD TV, not an HDTV
Could it be that software-scaling is killing performance?
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