Define and Setting a Resolution in Ubuntu 9.10:

nkmaniac

                Define and Setting a Resolution in Ubuntu 9.10:
You may create a modeline using the gtf or cvt
utility. For example, if you want to add a mode with resolution
800x600, you can enter the following command: (The output is shown
following.)
  $ cvt 800 600
  # 800x600 59.86 Hz (CVT 0.48M3) hsync: 37.35 kHz; pclk: 38.25 MHz
  Modeline "800x600_60.00"   38.25  800 832 912 1024  600 603 607 624 -hsync +vsyncThen copy the information after the word "Modeline" into the xrandr command:
  $ xrandr --newmode "800x600_60.00"   38.25  800 832 912 1024  600 603 607 624 -hsync +vsync
Then add mode to current output:
  
  $ xrandr --addmode VGA1 800x600_60.00
Then change resolution in Display Setting Console or using the following command:
  $ xrandr --output VGA1 --mode 800x600_60.00
               
               
               
               
               

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