[mythtv-users] Re: Grainy output from Nvidia FX5200

[Ben Curtis]

> Hello again everybody, 
> 
> I picked up the Asus GEFORCE FX5200 adapter that has dual-DVI outputs, 
> and S-Video out (the only one I could get quickly). The tuner card is 
> the Hauppauge 250. I am outputting via 1-DVI output to a Panasonic 42" 
> Plasma display. The problem is that the video is grainy, and not really 
> close to the direct cable to tv video quality. I wanted to get DVI 
> output to get the best quality, but this doesn't seem to help. FYI, 
> this is installed at a clients home, and I haven't had an opportunity to 
> test the 'cat /dev/video0 > test.mpg' output with mplayer. I will let 
> you know the results once I have a chance to test it. 
> But, I was seeing if there is something that I can do to quickly improve 
> the quality of the output. 
> The box is a dual-processes Pentium III 800MHz, and the speed seems OK, 
> but video quality not that great. Do you think I should try S-Video out 
> as well, or DVI to component? I don't think that will make much of a 
> difference. What about certain settings in mythtv setup? 
> 
> Any ideas? 
> 
> Thanks again to all of those who helped me get to this point. 
> 
> Jim 
>

How long of a DVI cable are you running?  Is it a good cable, or a cheapo?  
Cheap DVI cables are notorious for causing problems since the signal is so 
touchy.

Try running Svideo to it and see if the picture is any better, if so, I 
would check that DVI cable.

Ben