Display Managers

General

  • Display managers: Use sudo dpkg-reconfigure {lightdm,sddm,gdm,...}
  • Sessions: /usr/share/xsessions/
  • Greeters: /usr/share/xgreeters/

LightDM

Changing the greeter

  1. Install and set up the greeter
    • LightDM GTK+ Greeter: Use lightdm-gtk-greeter-settings
    • Slick Greeter: Use lightdm-settings
  2. Set greeter-session={lightdm-gtk-greeter,slick-greeter,…} under [Seat:*] in /etc/lightdm/lightdm.conf (see here for more configuration settings)
  3. Use sudo systemctl restart lightm to reload greeter, dm-tool switch-to-greeter to see the greeter after making configuration changes

GDM

  • Removing Wayland: Set WaylandEnable=false in /etc/gdm3/custom.conf