mdm (1) - Linux Man Pages

mdm: The MDM Display Manager


MDM - The MDM Display Manager


mdm [options]
mdmsetup [options]


MDM is a replacement for XDM, the X Display Manager. Unlike its competitors (X3DM, KDM, WDM) MDM was written from scratch and does not contain any original XDM / X Consortium code. MDM runs and manages the X servers for both local and remote logins (using XDMCP). See for more details.

mdm is main executable. mdmsetup is a graphical tool for easily changing the most commonly used options.

For full documentation see the GNOME help browser under the Applications / System Tools section.


mdm and thus also mdm accept the following options:
Do not fork into the background
No console (local) servers to be run
Preserve LD_* variables
Print the MDM version
Print simple description of accepted options

mdmsetup accepts all standard GNOME options.


Configuration is done either by running mdmsetup or by editting the /etc/X11/mdm/mdm.conf (usually, could also be /etc/mdm/mdm.conf) file. The graphical tool does not support all the options possible so editting the configuration file is sometimes necessary.


MDM is being written and maintained by George (Jiri) Lebl <jirka [at]> based on the original codebase by Martin K. Peterson <mkp [at]>.


X(7x), xdm(1), Xsecurity(7x), Xserver(1),