[mythtv-users] Modeline for DVI Output

[Brad Templeton]

On Thu, Jan 13, 2005 at 11:01:34AM -0700, johnellis at alumni.creighton.edu wrote:
> I am having some problems with my mythtv configuration.  I have the
> following:
> 
>  
> 
> ATI Radeon 7000 PCI (has both a svga out and a DVI out) (using radeon
> driver)
> 
> Panasonic 42? HDTV (TH-42XVS30)
> 
> Running on:
> 
> Fedora Core 2
> 

My experience with a Radeon 9200 card (newer than 7000 so you would think
it would be better) and the open source radeon driver was unfortunately
not good.

I was able to get it to drive the TV at 1080i with DVI, but I had
two strange problems.  One was a colour inversion that I believe I
got fixed.   The other however, was not as easy to fix.   1920 wide
video in xvideo showed a large purple bar on the right hand side,
I am guessing at about the 1600 pixel line.

In other words, either the hardware or driver would not do xvideo
at the necessary resolution.  I took the card back.   If you do make
it work, I would be interested in hearing back (since Nvidia 5200 cards
won't display over dvi to hdtvs at 1080i at all.)

One thing I now realize I could have tried would be to disable xvideo.
That's because if your TV and video are at the same resolution, no
scaling is required.   Perhaps one of the other display methods could
be made to work.  (However, if you can't drive your tv at 720p you would
need xvideo to scale it up to 1920x1080.)

I did not try the proprietary drivers, they were reported to not work
on 2.6 kernel on the ati web site, but somebody else said that's wrong, so
you might give those a whirl.