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Installed fglrx - now monitor turns off during boot!

Hello all,
I have just installed an ATI Radeon HD 2600 Pro (AGP) in my tower, which is running Ubuntu 10.04. I installed the fglrx driver via Jockey, and ran 'aticonfig --initial', with no errors.
Now, when I boot, it gets as far as the plymouth splash screen, and the display turns off, and the power light flashes on and off. If I boot in failsafe and use the backed up confguration, it works fine again. The monitor I am using is quite an old one - a 17" CRT with maximum resolution of 1152x864. I do not know the vendor.

Here is the output of xorg.conf

Quote:

Section "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Module"
load "dri"
EndSection

Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
BusID "PCI:1:0:0"
EndSection

Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Any help would be gratefully appreciated :)

EDIT: fglrxinfo and glxinfo bot give output of 'segmentation fault'. I have looked this up, but it seems to be a problem with a broad spectrum. I don't even know where to begin!

In addition to the above, I have just tried installing Catalyst 10.9 direct from the ATI site manually, with the same result (having first uninstalled the original driver and reset X.

No joy.

The first thing to do is check /var/log/Xorg.0.log for anything unusual. If you are unsure, attach it to a post here.

Adam

Quote:

Originally Posted by adamk75 (Post 4103350)

The first thing to do is check /var/log/Xorg.0.log for anything unusual. If you are unsure, attach it to a post here.

Adam

Thank you for your reply! I did as you suggested, and lo-and-behold, the card was trying to start the monitor in 1600x1200, which it can't handle. A little bit of googling and reading, and I found how to edit xorg.conf appropriately! Thank you for your help :)