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I successfully got my computer to display at 1440x900 resolution using the following steps. The problem is, I can't figure out how to make the changes persistent even after restarting the system.

Here are the steps

  • Use xrandr to make sure that the new mode can fit within the maximum framebuffer size Code:

    xrandr | grep maximum
    
  • Use gtf to create a mode line Code:

    gtf 1440 900 59.9
    
  • Add new mode using xrandr Code:

    xrandr --newmode "1440x900_59.90"  106.29  1440 1520 1672 1904  900 901 904 932  -HSync +Vsync
    
  • Add this newly added mode to the desired output (VGA/LVDS etc) Code:

    xrandr --addmode VGA 1440x900_59.90
    
  • Choose the new mode Code:

    xrandr --output VGA --mode 1440x900_59.90
    

Any Suggestions for making these changes persistent?

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closed as off-topic by jokerdino Jul 15 '13 at 17:30

  • This question does not appear to be about Ubuntu within the scope defined in the help center.
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Please mention your GPU's brand name and model. Thank you. –  Geppettvs D'Constanzo Jun 30 '12 at 17:00
    
you can change it in the xorg.conf file... –  d0lph1n Jun 30 '12 at 17:29
    
ok, but what exactly should I put in. xorg.conf file is blank. –  jamie Jun 30 '12 at 17:55
    
I have Radeon Xpress 200 –  jamie Jun 30 '12 at 17:55
    
the website where I found the code from my first post said to add: Section "Screen" Identifier "Primary Screen" Device "ATI Technologies, Inc. M22 [Radeon Mobility M300]" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1280x1024" "1024x768" "640x480" EndSubSection EndSection But that didn't work –  jamie Jun 30 '12 at 17:56
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