downgrading gdm

[phoenixfire900]

when I followed this thread:

http://ubuntuforums.org/showthread.php?t=1331457

I got this error when I rebooted:

screen init failed

[kansasnoob]

I similarly broke mine once and to get back to the original gdm I booted into recovery mode (if the grub menu is hidden at boot you'll have to depress the space bar during boot if this is grub2, or the Esc key if legacy grub), then after recovery mode completed running I selected netroot (that provides a shell w/networking) from the options and ran:


sudo apt-get --purge remove gdm-2.20


sudo apt-get install --reinstall gdm


sudo dpkg-reconfigure gdm


sudo reboot

That got me back to the original Karmic gdm, I have not tried changing to the older gdm again since then.