How Can I Restore The Default Login Manager for KDE?

Question

I recently installed the unity-desktop not knowing that it would change my login manager, and that KDE & Unity generally don't play well together. How can I restore the default KDE login manager for Kubuntu 17.04? I believe that it is SDDM, but I'm not sure.

Solution 1

You can try to reconfigure the sddm package with the command:

sudo dpkg-reconfigure sddm

A list should appear asking for the default login manager, select sddm and the login manager should be changed.

Solution 2

Previous command didn't work for me. The following worked :

sudo apt-get install --reinstall sddm-theme-breeze

Source : What methods are there to restore a deleted theme? file:///usr/share/sddm//themes/breeze/Main.qml:No such file or directory

Comments

[DK Bose]

While I still feel a clean install of whichever flavor is the best route, please check out askubuntu.com/questions/580207/…, makeuseof.com/tag/choose-switch-linux-display-managers and webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.htm‌​l