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I have a GT 430 Nvidia, was working fine till I upgraded to 12.04 yesterday. Apparently, nvidia decided to remove the overscan slider. I can't adjust to fix the overscan then, except in the xorg.conf which I can't edit. Even if I can, I'm not sure it would fix the problem.

I know the resolution that fits my TV as I have this issue in windows and in Ubuntu, its 1824x1026. Strange resolution, but it works. Is there a way I can either edit xorg.conf or if I can change it without doing so? Am running the latest drivers (not the experimental ones).

The issue with the xorg.conf is that it won't let me edit due to permission.

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Very very similar question with solution: Overscan compensation issue. –  gertvdijk Jan 18 '13 at 17:41

1 Answer 1

xorg.conf cannot be edited without root permissions. To edit it, do this:

  1. Press Alt+F2. This will open the "Run Application" window.
  2. Type gksu gedit /etc/X11/xorg.conf and press Enter.
  3. Enter your password when prompted and press Enter.
  4. gedit will open with xorg.conf.
  5. Make your modifications and press Ctrl+S to save.
  6. Reboot.
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Thanks, that gets me into the file, but I can't get it to use the modes I set. I've taken instead to using the terminal to manually set my resolution, I can get it almost perfect but the edge (where the power button is!) just gets cut off. –  Fultic Jan 19 '13 at 2:42

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