

You can install it with: sudo apt-get install sddmĪnd remove it with: sudo apt-get remove sddm But it's been deprecated in KDE5 in favor of SDDM, which is more capable as a display manager, and hence comes by default with Kubuntu. You can install it with: sudo apt-get install gdm3Īnd remove it with: sudo apt-get remove gdm3 Is the Canonical choice since Ubuntu 17.10. The newer gdm3 uses a minimal version of gnome-shell, and provides the same look and feel of as GNOME3 session.

Gdm3 is the successor of gdm which was the GNOME display manager. A session starts when a user successfully enters a valid combination of username and password. They provide graphical logins and handle user authentication.Ī display manager presents the user with a login screen.

Gdm3, kdm, and lightdm are all display managers.
