I installed Ubuntu 13.10 about a week ago. Just today I went ahead and installed kubuntu-full to get KDE and it's associated programs. I want to keep the Unity login screen though (default when you install Ubuntu). I can't seem to get this working. Doing a 'sudo dpkg-reconfigure gdm' or 'sudo dpkg-reconfigure lightdm' and choosing either one of those does not get me there.

If I choose gdm, I just end up with a gnome login screen. If I pick lightdm, I end up with a KDE login screen. Doesn't seem to be an option for choosing the unity login screen (whatever it's called).

Any assistance?


You need to install unity-greeter if it is missing.

and edit /etc/lightdm/lightdm.conf change greeter-session=lightdm-kde-greeter to greeter-session=unity-greeter and probably restart lightdm with sudo service lightdm restart or reboot

  • Would the person that did the down vote please explain themselves? It's not like this is a bad answer in the sense of that it's harming the installation. Besides, this is a new user, if new users do something wrong, explain them how they could do better! – LiveWireBT Oct 24 '13 at 8:30
  • My bet was on an update-alternatives solution, but after installing the kubuntu-full package, I couldn't find a corresponding alternative, neither ldm-theme nor x-session-manager are correct, only the above solution works. But my greeter was still Unity after KDE installation. – LiveWireBT Oct 24 '13 at 10:09
  • This method worked halfway for me. It brought back the Unity log-in screen only after I log-out from the first session. On my actual startup, I'm still getting the Kubuntu black screen, and no log-in screen at all. – Diego Apr 2 '14 at 15:03

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