I did it the other way around but I can still confirm this bug; installed Ubuntu then installed kubuntu-desktop. I have the same problem, I can no longer select the Desktop Manager.
The following command: $ sudo dpkg-reconfigure gdm should bring up the debconf box to pick the Desktop Manager (i.e. login window) of my choice, but it doesn't show up. -- [karmic] impossible to switch from kdm to gdm https://bugs.launchpad.net/bugs/414140 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs