XDM (display manager)

XDM
Original author(s)Keith Packard
Developer(s)X.Org Foundation
Initial releaseOctober 1988 (1988-10)
Stable release
1.1.17  / 9 March 2025 (9 March 2025)
Repository
Written inC, C++
TypeX display manager
LicenseMIT License

The X Display Manager (XDM) is the default display manager for the X Window System. It is a bare-bones X display manager. It was introduced with X11 Release 3 in October 1988, to support the standalone X terminals that were just coming onto the market. It was written by Keith Packard.