Computer Programming Software Terms, Glossary and Dictionary
GDM: GNOME Display Manager
GNOME Display Manager(GDM) provides an alternate display manager for the X Window System. The X Window System by default uses the X display manager (XDM). However, resolving XDM configuration issues typically involves using the command line. GDM allows users to customize or troubleshoot settings without having to resort to a command line. Users can pick their session type on a per-login basis. GDM also features easy customisation with themes.