Well it sounds like KDM has gone away. I've seen some other posts about this same problem but do not know the reason for it.
Code:
$ su
# unfreeze-rc.d
# rcconf
Make sure KDM is marked to run on boot.
You can also start KDM from a virtual terminal. Something like:
CTRL+ALT+F1
Code:
# /etc/init.d/xdm stop
# /etc/init.d/kdm start
To set KDM as the default login manager:
Code:
# dpkg-reconfigure kdm
Select KDM when prompted. |