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Old 03-20-2004, 03:11 PM   #1
Cookie
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Registered: Sep 2003
Posts: 26

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HELP: Screwed up monitor resolution


Hi, I was fooling around with the appearance of my desktop and what not when I changed the monitor resolution. It had me log out to log back in and when I did, I get a message from the monitor saying "out of range" for the frequencies... Now the monitor doesn't work with Linux. How do I change it back?

I'm almost thinking of just deleting it all and re-installing, since I was going to do that soon anyway and all my important files are accessible from Windows. But there should be a less drastic solution.
 
Old 03-20-2004, 03:39 PM   #2
Penguin666
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Registered: Nov 2003
Location: Montreal Canada
Distribution: Mandrake 9.2
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DONT REINSTALL :)

when you reboot:
If you are using GRUB as your boot loader

As you see GRUB come up hit "e" on your keyboard

go to "Kernal" and press "e" again.

after the slash "/" put a "space" then a "3" for runlevel 3

Now you can boot into text mode (terminal)

when you logon change your XF86Config file. Put in a lower screen res or refresh rate (what ever you changed to break it in the first place)


**NOTE
Becareful with refresh rates. Choosing one higher than your monitor can handle can cause your monitor to become a useless piece of plastic and glass. The rule goes double for LCD screens.


Hope this helps.
P666
 
Old 03-20-2004, 03:40 PM   #3
Penguin666
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forgot LILO

if u are using lilo:

boot: vmlinuz 3 (YES, its a "z" at the end)


P666
 
Old 03-28-2004, 08:33 PM   #4
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Thanks Penguin. I tried this (I'm using Lilo but booting from a disk and I have a double boot) and I get the following error:

EXT2-fs: unable to read superblock
isofs_read_super: bread failed, dev=09:00, iso_blknum=16, block=32
Kernel panic: VFS: unable to mount root fs on 09:00


Any ideas?
 
Old 03-29-2004, 09:39 PM   #5
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Yay. I fixed it. For future reference, in case anyone else has the same problem, I found out that the error above is due to the booter not knowing where to mount root and trying to mount it in the wrong place. I fixed this by typing

vmlinuz 3 root=/dev/hda3

at the boot prompt. Then the full path of the file to fix is /etc/X11/XF86Config.
 
  


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