From XDM manual page:
- Xdm manages a collection of X displays, which may be on the local host or remote servers. The design of xdm was guided by the needs of X terminals as well as The Open Group standard XDMCP, the X Display Manager Control Protocol. Xdm provides services similar to those provided by init, getty and login on character terminals: prompting for login name and password, authenticating the user, and running a "session."
XDM provides a simple and straightforward graphical login prompt.
If you would like to use an Arch Linux theme for XDM, you can optionally install the
xdm.service, but instead enable
Defining the session
Unlike many more modern display managers such as GDM or LightDM, XDM does not source available sessions from .desktop files located in the
/usr/share/xsessions directory. As such, XDM does not have a 'session menu.' Instead, XDM will execute the
.xinitrc file in the home directory. See Xinitrc#Configuration for details.
Ensure that the
.xinitrc file in your home directory is executable. To do this use the following command:
$ chmod 744 ~/.xinitrc
For the exact meanings of the options discussed below, see the manual page of xdm. The configuration file is located in
/etc/X11/xdm/Xresources, notice that if you installed the configuration file will instead be located in
You can use a program such asto set the background in XDM:
- Make a directory to store background images, e.g.
- Place your images in the directory.
/etc/X11/xdm/Xsetup_0. Change the
/usr/bin/qiv -zr /root/backgrounds/*
/etc/X11/xdm/Xresources. Add/replace the following defines:
xlogingreetFont: -adobe-helvetica-bold-o-normal--20------iso8859-1 xloginfont: -adobe-helvetica-medium-r-normal--14------iso8859-1 xloginpromptFont: -adobe-helvetica-bold-r-normal--14------iso8859-1 xloginfailFont: -adobe-helvetica-bold-r-normal--14------iso8859-1
Login dialog positioning
This configuration will move the login dialog to the bottom right of the screen.
xlogin*frameWidth: 1 xlogin*innerFramesWidth: 1 xlogin*logoPadding: 0 xlogin*geometry: 300x175-0-0
Removing the logo
Comment out the logo defines:
#xlogin*logoFileName: /usr/X11R6/lib/X11/xdm/pixmaps/xorg.xpm #xlogin*logoFileName: /usr/X11R6/lib/X11/xdm/pixmaps/xorg-bw.xpm
Multiple X sessions & Login in the window
With the Xdmcp enable, you can easily run multiple X sessions simultaneously on the same machine.
# X -query ip_xdmcp_server :2
This will launch the second session, in window you need
# Xephyr -query this_machine_ip :2
In order to enable passwordless login for XDM, add the line below to