services.displayManager.defaultSession
Graphical session to pre-select in the session chooser (only effective for GDM, LightDM and SDDM).
On GDM, LightDM and SDDM, it will also be used as a session for auto-login.
Set this option to empty string to get an error with a list of currently available sessions.
- Type
session name- Default
null- Example
"gnome"- Declared
- <nixpkgs/nixos/modules/services/display-managers/default.nix>