[mythtv-users] Can't Do HD ATSC Playback

Tom Lichti tom at redpepperracing.com
Wed Apr 25 17:30:59 UTC 2007


Alex Halovanic wrote:
> Yeah, the card should work well with XvMC, including the Color OSD
> hack on the wiki, at least as well as anything else does (getting XvMC
> working properly can be very hit or miss.)  If I were you however, I
> might poke around a bit more to find a 5200 with DVI, VGA, and
> S-Video, or just DVI and S-Video and one of those little DVI->VGA
> adaptors they all seem to come with.  If in the future you ever get a
> real HDTV (and soon that's probably all you'll be able to buy), you'll
> be much more likely to find one with DVI in than VGA in.
>   
Also, if your current TV happens to have component in (480i) then a 6200 
with component out will do what you want.
> Mythtv wouldn't have a problem with the scaling, its just like
> watching a video in a tiny window.  My concern is that supposedly some
> video cards can't handle such large scaling amounts, going from a
> 1920x1080 video to a (supposedly) 800x600 output.  I saw some posts on
> this list somewhere about "bad" 5200s that had these problems, but I
> can't find them at the moment.  I'm also not entirely sure how XvMC
> interacts with the scaling factor, although I know that it is capable
> of scaling from 1920x1080 down to 1280x720 and vice versa.
>   
I am using a 6200 with component out (see above) and it scales 1080i 
perfectly down to 480i on my SD TV.

Tom



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