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Display problem - All I see is colored vertical lines

Hello Friends,
After using Ubuntu 5.10 successfully for 2 months, I have installed Debian 3.1 r1 on my PC.
The PC is -
933 MHz Intel P-III
256 MB SDRAM
Intel 82810E Chipset Mainboard with onboard VGA

I am having problem with the display. I can hear the system speaker beep that the system is asking me to enter my username and password. But, on the screen I can see only hundreds of thin and static colored vertical lines.
Maybe this is some problem with the gdm or XF86Config-4.
The same CDs work nice on my friend's new laptop so, it's not the installer that's making problems.
I haven't troubleshooted any display problems yet so, I just don't see any way around on myself.
Has anyone faced such problems. And can anyone help me get out of this one? Please, give as much suggestions as u can. I don't wanna get defeated and go back to Ubuntu this way.

Try running:

Code:

dpkg-reconfigure xserver-xfree86

(as root)

Quote:

Originally Posted by jens

Try running:

Code:

dpkg-reconfigure xserver-xfree86

(as root)

Thanks a lot. That's what I needed to know. I reconfigured my display through this command you told me

Code:

dpkg-reconfigure xserver-xfree86

Then, I did this

Code:

/etc/init.d/gdm start

and now it's working fine. Thanks again. :)