[mythtv-users] Ways to improve TV Out quality

Ben Rometsch ben at solidstategroup.com
Sun Jul 25 12:43:55 EDT 2004


Hi There,
 
Right, I finally have my myth setup working on my main TV downstairs. I
eventually used one of these to provide TV out capability: 

http://www.averm.co.uk/avermedia/products/comptv_QuickPlay.html

Now, I am in the UK (PAL-I I believe) and running off a Sony 32" 100Hz wega
TV, being driven by a Avermedia 771 DVB-T card. I'm not sure what the best
resolution or modeline is that I should be running in? Can anyone provide
any suggestions here? 

The picture on the whole is OK, but it suffers from two major problems:

1 - It is not 100% smooth. It's hard to describe the effect that is being
generated, but it's as if it is only running 18 fps or so. The image is not
totally solid; basically it looks like it has gone through a computer! I'm
not sure if the XF86Config is correct for my setup, but switching back to
normal terrestrial analogue TV everything just looks a lot more fluid and
smooth. 

2 - Ghosting. Horizontal pans (especially with white on black) cause huge
ghosting issues. If I pause Live TV it generally shows 2 frames on the
screen, one slightly transparent. 

Are there any simple things I can tweak to help eliminate these problems?
The don't happen so much on Mplayer when watching movies encoded to DivX. If
I plug the box into a monitor, the effects do not appear. 

Thanks,
Ben



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