[juneau-lug] CTL 195UW monitors at Fred's

  • From: James Zuelow <e5z8652@xxxxxxxxxx>
  • To: juneau-lug@xxxxxxxxxxxxx
  • Date: Sat, 7 Jul 2007 18:55:52 -0800

After my old 17" CRT finally gave up the ghost (brand new from Gateway, May 
1997!) I picked up one of the 19" widescreen LCD's at Fred's today.

The specs on the Hann-G and CTL monitors looked identical, so I picked up the 
CTL because the mount was lower.

Brought it home, plugged it in, and it picked up the 1024x768 my xorg.conf was 
set at.  So I edited xorg.conf and put in the monitor's native 1440x900 
resolution and restarted X.

Terrible!  The result was a virtual 1440x900 screen on a 1152x864 physical 
screen.  Needless to say, things were a bit fuzzy as the monitor tried to 
stretch pixels into 1152x864, and the top quarter of the screen was not 
visible.

Looking at /var/log/Xorg.0.log, I saw that apparently I didn't have a good 
default modeline for 1440x900.  X was unable to come up with something the 
LCD liked, and was using the virtual screen as a workaround.

To resolve it, add a modeline to xorg.conf like this:

Section "Monitor"
        Identifier      "CTL 195UW"
        Option          "DPMS"
        HorizSync       30-80
        VertRefresh     56-75
        modeline "1440x900" 108.000 1440 1520 1672 1904 900 903 909 934 +hsync 
+vsync
EndSection

(Everything after modeline is ONE LINE.  The next line is the EndSection.)

Now I have my crisp 1440x900 display, with a 61MHz refresh rate.  

So if you pick up one of the LCD's and have the same display issue try the 
modeline above.  It might work for the Hanns-G model also.  They look to me 
like the same monitor, just different plastic parts on the outside.

ATI Radeon Xpress 200G (RS480), onboard video using free xorg ati and/or 
radeon driver.  I do not see any difference between the two, and the 
Xorg.0.log looks the same too.  

I guess if you used ATI's proprietary driver you might not have this issue.  I 
haven't tried that solution.

James

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