On Thu, 2005-08-25 at 09:40 -0500, Jerry Geis wrote:
> Hi,
>
> I am attempting to connect my dell SC420 to a 32" LCD at 1366x768.
> I have attached my currect config file and currect X start log.
>
> How do I massage the xorf file to run at the native resolution of the LCD?
>
> It currently runs but is in a virtual mode. The screen scrolls.
>
> Any help is appreciated. I am using Centos 4.1.
>
> Jerry
The problem is Xorg doesn't know anything about the mode 1366x768, so
you have to construct it.
>(II) I810(0): Monitor0: Using hsync range of 31.00-70.00 kHz
>(II) I810(0): Monitor0: Using vrefresh range of 50.00-85.00 Hz
>(II) I810(0): Not using mode "1366x768" (no mode of this name)
>RESOLUTION 1600x1200
Fortunately, constucting a mode is far simpler these days then in the
days of yore, as the Xorg output gives you all the needed parameters to
construct a modeline:
> (II) I810(0): clock: 85.5 MHz Image Size: 700 x 400 mm
> (II) I810(0): h_active: 1366 h_sync: 1494 h_sync_end 1624 h_blank_end 1798 h_border: 0
> (II) I810(0): v_active: 768 v_sync: 770 v_sync_end 776 v_blanking: 795 v_border: 0
Which should equate to something like this:
Modeline "1366x768" 85.5 1366 1494 1624 768 770 776 795
Add this to your /etc/X11/xorg.conf, and run X and see what shows up in /var/log/Xorg.0.log
Hope this helps,
Sean
--
Sean O'Connell
Office of Engineering Computing oconnell@xxxxxxxxxxxx
Jacobs School of Engineering, UCSD 858.534.9716 (49716)
