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Old 09-23-2006, 04:07 PM   #1
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Registered: Apr 2005
Location: Houston
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Centos after bootup process monitor led blinks

I think I'm either having a video driver issue or a resolution/refresh rate issue after linux boots. Right before it would get to the login screen my screen goes blank and my monitor power led flashes green. I tried adding "vga=790" to the boot parameter in grub but that doesn't seem to do the trick. I had this issue a while back and somehow got it to boot where I could reinstall the video driver and it worked for a while but something must have changed. How can I resolve this in Centos? Thanks

Last edited by barkster; 09-23-2006 at 04:36 PM.
Old 09-23-2006, 04:55 PM   #2
Registered: Apr 2003
Location: Dallas
Distribution: Vector Linux, Suse 10.1
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What video card is this?

Also, can you look at the configuration file with your favorite text editor, to see what driver it is using? It should be at /etc/X11/xorg.conf.

Good luck.

Old 09-23-2006, 05:08 PM   #3
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I got to the prompt finally and I see the configuration but how can I change to some generic driver or something different. I can't even run xconfigurator from the setup menu. It does the same thing there.

Last edited by barkster; 09-23-2006 at 09:04 PM.
Old 09-23-2006, 09:19 PM   #4
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Finally got it, Here is how I did it probably not right but worked.

1. Edit boot command in grub and added 3 to end of boot string
2. Login as root
3. vi /etc/X11/xorg.conf
4. took out everything inside the " " for the monitor and driver
5. saved xorg.conf by :wq
6. type setup at command
7. ran xconfigurator to setup video and monitor and rebooted.

worked and I'm sure there is an easier way


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