While manually editing and tweaking my video configuration for Ubuntu 7.10 (Gutsy Gibbon) to get better performance for my ATI Radeon 9200 I accidentally butchered the config. (Tee-hee oops!)

Thankfully it reverts to a low setting at least allowing me into the desktop to load a terminal and start correcting my errors.

First off – if you can’t figure out what you did, just blast it and start over with this command:

sudo dpkg-reconfigure -phigh xserver-xorg

This will load the /etc/X11/xorg.conf file back as it was at install. Restart your x-server and things should be operational from a clean slate, unless you get the following message:
md5sum: /etc/X11/xorg.conf: No such file or directory

In which case, something you did wiped out your configuration entirely, and dpkg doesn’t want to reload it. This is easily recoverable:

sudo touch /etc/X11/xorg.conf
sudo dpkg-reconfigure -phigh xserver-xorg

This places an empty file in the location, allowing dpkg to do it’s thing without error.

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