I got new hardware for my PC at work (i3-2100 with integrated Intel HD Graphics 2000). My Ubuntu 10.10 installed didn't feature proper drivers for this GPU, but some folks over the Web advised to add xorg-edgers PPA which hosts bleeding edge version of Xorg and drivers.
It's worth saying that I my Xorg rejected to extend my desktop to both monitors after this upgrade :)
Task
So I started searching for the way to revert this update :)
Solution
Finally Synaptic saved me! I'll appreciate if somebody will teach me how to do the same from command line.
So:
- open Synaptic
- select group by Origin (bottom left corner)
- in the list on the left find the source repo you did the upgrade from
- now select installed packages (from this repo) one by one and for each to Package - Force Version... (Ctrl + E)
Some more helpful info is available at https://help.ubuntu.com/community/CleanUpgrade
