Switch from KDM to GDM in Ubuntu / Kubuntu

The default display (login) manager for Ubuntu/GNOME is GDM. KDM, which is the login manager for Kubuntu/KDE is installed when you install the kubuntu-desktop package in your Ubuntu system.

If you want to switch back to GDM as the login manager, run the following command at the terminal;

sudo dpkg-reconfigure gdm

At the ncurses menu, choose gdm and click OK.

You'll now be presented with GDM every time you boot your Ubuntu system.

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Written by Mohd Shakir Zakaria. Last updated on 2019-02-12