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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.
If this question can be reworded to fit the rules in the help center, please edit the question.

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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