[mythtv-users] xorg.conf for 1280x720 HDTV

Scott catfather at donpoo.net
Tue Jul 12 07:31:09 EDT 2005


On Jul 11, 2005, at 5:27 PM, mark at onnow.net wrote:

>
> # 1280x720 @ 60.00 Hz (GTF) hsync: 44.76 kHz; pclk: 74.48 MHz
>   Modeline "1280x720_60.00"  74.48  1280 1336 1472 1664  720 721  
> 724 746
> -HSync
> +Vsync
>
> Now, I get a bit lost.  How do I create the xorg.conf based on this?

In the "Monitor" section of your /etc/X11/xorg.conf add the following  
line:

     ModeLine "Modeline "1280x720_60.00"  74.48  1280 1336 1472 1664   
720 721 724 746"

Comment out your existing "Screen" section and use something like  
this. Notice the Modes listed match the Modeline name given in the  
"Display" section you previously edited. When adding this section,  
make sure the Identifer, Device, and Monitor values match up with the  
values given in the "Device" and "Monitor" and "ServerLayout" sections.

Section "Screen"
         Identifier "Screen0"
         Device     "Card0"
         Monitor    "Monitor0"
         DefaultDepth    24
         SubSection "Display"
                 Depth   "24"
                 Modes   "1280x720_60.00"
         EndSubsection
EndSection


As an alternative, you could also try the following Modeline that  
works for me on my HDTV (not the same brand as yours)
ModeLine "ATSC-720-60p" 74.25 1280 1320 1376 1650 720 722 728 750 As  
long as one of the mode lines works (picture fills the screen  
correctly) and is within the specs of your TV it shouldn't matter  
which one you pick.

--
Scott


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