Share your knowledge at the LQ Wiki.
Go Back > Forums > Linux Forums > Linux - Newbie
User Name
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!


  Search this Thread
Old 05-27-2005, 03:57 PM   #1
LQ Newbie
Registered: May 2005
Posts: 2

Rep: Reputation: 0
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!!

Old 05-27-2005, 04:19 PM   #2
Senior Member
Registered: Jan 2005
Location: Canada
Distribution: ubuntu
Posts: 2,539

Rep: Reputation: 60
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 if its, 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, 04:55 PM   #3
LQ Guru
Registered: Aug 2001
Location: Fargo, ND
Distribution: SuSE AMD64
Posts: 15,733

Rep: Reputation: 680Reputation: 680Reputation: 680Reputation: 680Reputation: 680Reputation: 680
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 04:57 PM.
Old 05-27-2005, 06:07 PM   #4
LQ Newbie
Registered: May 2005
Posts: 2

Original Poster
Rep: Reputation: 0
Right...fixed it...thanks
Old 05-27-2005, 06:52 PM   #5
Registered: Dec 2002
Distribution: Slackware
Posts: 927

Rep: Reputation: 30
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


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
I messed with the screen resolution and now Redhat will boot into a black screen! Mr. Hill Linux - Newbie 29 05-04-2009 11:52 AM
default screen resolution smaller than max. resolution ?? Thoddy Linux - General 2 11-10-2005 01:33 AM
Unable to configure screen resolution for 15.2" LCD screen in Fedore Core 1 schu Linux - Newbie 3 01-02-2004 05:39 PM
Help! KDE 3.1 exploded! God Linux - Software 4 08-20-2003 12:50 AM
screen freezes after making changes to the screen resolution with Xconfigurator sharathkv Linux - Newbie 1 08-01-2003 05:56 AM > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 08:41 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration