ubuntu-x-swat team mailing list archive

[z_mikowski <z_mikowski@xxxxxxxxx>]

I had the same problem with an intel chips set.  I found that creating a
new xorg.conf file to help Xorg worked:

1. Determine the modeline(s) for your monitor.

Use http://xtiming.sourceforge.net/cgi-bin/xtiming.pl

You may need to look at your monitor's manual, or, what worked best for
me, was to google for my monitor.  I was able to fill in enough details
to get a usable modeline.

Modeline     "1024x768@60" 64.56 1024 1056 1296 1328 768 783 791 807
+hsync -vsync

2. Turn off X11

$ sudo stop kdm

3. Reconfigure X11

In a virtual terminal, log in and:

$ cd /etc/X11
$ # backup existing xorg.conf file if exists
$ sudo mv xorg.conf xorg.conf.20091031 # xorg.conf may not exist
$ sudo Xorg -configure
$ sudo mv xorg.conf.new xorg.conf

In the section "Monitor", add the mode line:

Section "Monitor"
       # keep other lines here
       Modeline     "1024x768@60" 64.56 1024 1056 1296 1328 768 783 791 807 +hsync -vsync
EndSection

And under the "Screen" section, add a reference to your new modeline:

Section "Screen"
      # keep other lines here
      SubSection "Display"
              Modes "1024x768@60"
              Viewport 0 0
              Depth     24
      EndSubSection

4. Restart Xorg

$ sudo start kdm

5. Parting thoughts
  a) This is an annoying regression.  9.04 did not have this problem with Intel graphics.
  b) The +hsync and -vsync options were trial and error.  If you find horizontal blurring, trying +hsync
  c) Remember, your modeline is resolution and monitor dependent!  Take care with step 1

I hope this helps!

-- 
Screen resolution only 800x600 on Karmic after installation on ASUS EeeTop 1602C
https://bugs.launchpad.net/bugs/466880
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