[mythtv-users] Re: HDTV (HDCP) + MythTV

Jarod C. Wilson jcw at wilsonet.com
Mon Jul 7 12:42:21 EDT 2003


On Monday, Jul 7, Chris Baker wrote:

> Does anyone in these forums use DVI with HDCP support for display to an
> HDTV? I understand that most of my inputs will not have this quality,
> but for DVD and playback of other high resolution sources, HDTV is
> prefered. I've noticed that alot of people prefer the geforce4 chipset
> for use with svideo, however I have found no geforce chipsets that
> support HDCP (which is required for display to an HDTV monitor). I
> however found that ATI does, and I feel this would be my best bet. I
> have a few days before frys doesn't let me take back this geforce, so
> any success stories (or failures) that people have trying to do this
> would be appreciated.

I've got an HDTV I'm feeding from my MythTV box, but unfortunately, it 
is an older one and does not have the facilities to accept direct DVI 
input (I kick myself for not getting a different TV sometimes, but the 
price was right...).

> What chipset do you use for display to  your HDTV?

I've used both a GeForce 4 Ti and a GeForce 4 MX with excellent results 
(both via S-Video). But I still use a separate progressive-scan DVD 
player connected via component video for DVD playback.

> What resolution do you playback at?

I'm running X at 1024x768, which gets stretched out. For MythVideo, I 
added a switch to have mplayer called to compensate for the distortion, 
so videos get played back like they should. I just added -monitoraspect 
16:9 before the end of the call for mplayer, and mplayer vertically 
scales movies to compensate for the width distortion (otherwise, 
wide-aspect divx movies only use the middle 2/4 of the screen). TV is 
another matter; it is a bit wider than normal, but that's the way my 
digital cable always looks, so I'm used to it.

One thing I considered for a while was going with an ATI video card, 
and using their DVI to component video adapter to feed my TV, but from 
everything I read on their site, it only works with a few of their 
cards, and requires Windows drivers to work correctly.

If anyone is aware of a good DVI to component video adapter that works 
under Linux, I'm all ears...

-jcw



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