Use the PC-Input instead of HDMI.  With the PC input, X will automatically 
configure itself,
since it will be able to read the monitor information.  You don't even need a 
modeline.
The Samsung TV's are pretty good, I have one myself.  If you have too much 
overscan or
underscan, you can compensate quite a bit of it using the TV.

________________________________

From: [EMAIL PROTECTED] on behalf of Jay R. Ashworth
Sent: Wed 1/4/2006 3:54 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Large LCD Televisions?



On Wed, Jan 04, 2006 at 05:50:29PM -0500, Joshua Ferraro wrote:
> My problem is that I can't get the TV to display Xorg. I've got a DVI->HDMI
> cable that I'm using to do the display out to the TV, it almost works fine
> in text mode (except for the fact that the screen size seems to be too large
> for the display and my cursor and the left-hand side is cropped off the 
> screen).
> My xorg.conf file looks mostly like 
> http://wilsonet.com/mythtv/xorg.conf-HD.txt
> except that I've obviously got a different video card. Basically, the only
> error I've got to go off is the TV's 'mode not supported' whenever I try
> to startx.

You are almost certainly overscanning the TV.  I would recommend trying
to get X into a lower resolution mode (if you're configured in the
traditional fashion, Ctrl-Alt-+ and - ought to rotate between them),
and if that works, go into your config file and lock off the modes that
scan too high.


<<winmail.dat>>

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