Comment 2 for bug 67069

Correct. (note i already reinstalled gdm, i just feel that SHOULD happen, i mean, its gdm, why would it get removed?) My upgrade was something like this:

//edit my sources.list to reflect edgy
sudo apt-get update
sudo apt-get dist-upgrade
//FAILED because of x11-common
//got a workaround from gnomefreak in #ubuntu+1
//workaround is as follows
sudo dpkg -i --force-overwrite /var/cache/apt/archives/x11-common_1%3a7.1.1ubuntu5_i386.deb
sudo dpkg-reconfigure -a
sudo apt-get dist-upgrade
sudo shutdown -r now
Xorg -version //came back as 7.0.0 so i assumed the upgrade failed
sudo apt-get dist-upgrade
//Here I ran synaptic and hit "remove" on a broken package, at which point it highlighted all broken packages for removal, and offered to install other packages (i don't know why)
sudo apt-get dist-upgrade -f
Xorg -version //came back as 7.1.1 so i assumed the upgrade succeeded

as you can tell i was trying just about everything, but in the end it DID work, but it also cost me my GDM. I suppose it could have been my own upgrade proccess that did this, but i know other people who experienced the x11-common dependancy problems