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Old 04-10-2006, 11:03 PM   #1
LQ Newbie
Registered: Apr 2006
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Monitor Problems-Please Help!

So I'm having some monitor problems with my Linux based computers. I have to admit, I only use the Linux machine for a small portion of my work (mainly for music encoding), so I'm not that well versed in it as an OS. Basically, I turn on the computer- everything is booting up like normal, and right before it gets to the Red Hat login screen, the monitor switches off and says its out of frequency. I've been troubleshooting with my sometimes Linux tech guy (who's in Texas, with me in L.A., so its a bit hard to explain things), and he had me create a Linux live disk. The monitor works perfectly with the Linux live disk, so that leads me to believe there is a monitor setting that got switched and is barring it from performing correctly with Red Hat. Like I said, I don't know a lot about Linux, so I don't know if I have explained this correctly or not. Please let me know if you need more information to help or if you know what might be causing it. Thanks!
Old 04-10-2006, 11:25 PM   #2
Jerre Cope
Registered: Oct 2003
Location: Texas (central)
Distribution: ubuntu,Slackware,knoppix
Posts: 323

Rep: Reputation: 37
Your video card is overdriving your monitor. You can use run lspci as root to get an idea of what video card you have, next google your Monitor model ( or find the owner's manual) and find out it's vertical and horizontal frequency ranges.

Depending on how old your distribution is, you can run XF86Config, or xorgconfig to run through a text based set menus to set your display correctly.

Try typing control-alt-F1, or control-alt-F2 to get a text login screen where you can run the above mentioned programs.


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