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Old 05-27-2005, 04:57 PM   #1
mucha_lucha
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Registered: May 2005
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Screen resolution exploded


I have Redhad Linux Version 3. I tried to increase the screen resolution, and I had to log out for settings to take effect. Once I did that, the screen just blew up, as in my mouse pointer now fills the whole page, and I can't access the [Linux equivalent of the] Start button or anything else. How do I revert?

Please help, my whole screen is blue and I can't accomplish anything!!

Thanks,
 
Old 05-27-2005, 05:19 PM   #2
nadroj
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do u have a rescue floppy disc that it probably asked you to make?
if not, try getting a live cd like damn small linux (< 50mb download, fast) or knoppix..any live cd.. and boot with that. youll then have to edit your configuration for the display. i think it would be a setting for the X server (correct me if im wrong).. so youll need to find out if RH3 uses X86free or X.org.. if its X.org, the configuration file is probably /etc/X11/xorg.conf.. edit that file, there should be a section in there for display and resolution, just change it, save, and reboot, i would think.
 
Old 05-27-2005, 05:55 PM   #3
jschiwal
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If you press [CTRL]-[ALT]-[F2], you can log in to a virtual terminal and edit your /etc/X11/XF86config (or Xorg.conf) file using a console editor like emacs or vim.

The configuration file has its own man page you can reference for the changes needed. I would recommend using the gft command to generate a modeline for the resolution you where trying.

For example suppose you want to use 1280x1024 resolution at 60 Hz. The command would be
gtf 1280 1024 60 -x

You could redirect the output to a temporary file and then insert where you need it when you edit the configuration file..

I've had luck using this command to get the resolution correct for my 1280x800 laptop.

Last edited by jschiwal; 05-27-2005 at 05:57 PM.
 
Old 05-27-2005, 07:07 PM   #4
mucha_lucha
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Right...fixed it...thanks
 
Old 05-27-2005, 07:52 PM   #5
Genesee
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also, depending on how you changed the resolution, you may be able to scroll thru resolutions using ctrl-alt-[+,-] using the +,- keys on the keypad
 
  


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