dpkg -l | egrep 'mdm|session'
ii cinnamon-session 2.4.3+rebecca i386 Cinnamon Session Manager - Minimal runtime
ii cinnamon-session-common 2.4.3+rebecca all Cinnamon Session Manager - common files
ii cinnamon-settings-daemon 2.4.3+rebecca i386 daemon handling the Cinnamon session settings
ii command-not-found 0.3ubuntu12 all Suggest installation of packages in interactive bash sessions
ii consolekit 0.4.5-3.1ubuntu2 i386 framework for defining and tracking users, sessions and seats
ii gnome-settings-daemon 3.8.6.1-0ubuntu11.2 i386 daemon handling the GNOME session settings
ii lxsession 0.4.9.2+git20140410-0ubuntu1.2 i386 default session manager for LXDE
ii lxsession-data 0.4.9.2+git20140410-0ubuntu1.2 all Common files for lxsession
ii lxsession-edit 0.4.9.2+git20140410-0ubuntu1.2 i386 configure what application start up automaticlly in LXDE
ii lxsession-logout 0.4.9.2+git20140410-0ubuntu1.2 i386 utility to logout from a LXDE or an Openbox session
ii mate-session-manager 1.8.1-0 i386 MATE Session Manager
ii mate-settings-daemon 1.8.2-0+rebecca all daemon handling the MATE session settings (metapackage)
ii mate-settings-daemon-common 1.8.2-0+rebecca all daemon handling the MATE session settings (common files)
ii mate-settings-daemon-pulse 1.8.2-0+rebecca i386 daemon handling the MATE session settings (PulseAudio version)
ii mdm 1.8.3+rebecca i386 MDM Display Manager
ii mint-mdm-themes 2014.10.29 all Linux Mint MDM Themes
ii mint-mdm-themes-gdm 1.8.1 all Linux Mint MDM Themes
ii mint-mdm-themes-html 1.8.3 all Linux Mint MDM Themes
rc razorqt-session 0.5.2-4 i386 Session manager component for Razor-qt desktop environment
ii session-migration 0.2.1 i386 Tool to migrate in user session settings
ii sessioninstaller 0.20+bzr141-0ubuntu4 all APT based installer using PackageKit's session DBus API
ii x11-session-utils 7.7+1 i386 X session utilities
ii xfce4-session 4.10.1-3ubuntu5 i386 Xfce4 Session Manager
cat /etc/mdm/mdm.conf
# MDM Configuration file.
#
# This file is the appropriate place for specifying your customizations to the
# MDM configuration. If you run mdmsetup, it will automatically edit this
# file for you and will cause the daemon and any running MDM GUI programs to
# automatically update with the new configuration. Not all configuration
# options are supported by mdmsetup, so to modify some values it may be
# necessary to modify this file directly by hand.
#
# This file overrides the default configuration settings. These settings
# are stored in the MDM System Defaults configuration file, which is found
# at the following location.
#
# /usr/share/mdm/defaults.conf.
#
# Default settings are first overriden by you distribution in /usr/share/mdm/distro.conf
# and then by the settings present in this file.
#
# This file contains comments about the meaning of each configuration option,
# so is also a useful reference. In short, to hand-edit
# this file, simply add or modify the key=value combination in the
# appropriate section in the template below this comment section.
#
# For example, if you want to specify a different value for the Enable key
# in the "[debug]" section of your MDM System Defaults configuration file,
# then add "Enable=true" in the "[debug]" section of this file. If the
# key already exists in this file, then simply modify it.
#
# If you hand edit a MDM configuration file, you can run the following
# command and the MDM daemon will immediately reflect the change. Any
# running MDM GUI programs will also be notified to update with the new
# configuration.
#
# mdmflexiserver --command="UPDATE_CONFIG <configuration key>"
#
# e.g, the "Enable" key in the "[debug]" section would be "debug/Enable".
#
# You can also run mdm-restart or mdm-safe-restart to cause MDM to restart and
# re-read the new configuration settings. You can also restart MDM by sending
# a HUP or USR1 signal to the daemon. HUP behaves like mdm-restart and causes
# any user session started by MDM to exit immediately while USR1 behaves like
# mdm-safe-restart and will wait until all users log out before restarting MDM.
#
#
# NOTE: Lines that begin with "#" are considered comments.
#
# Have fun!
[daemon]
Greeter=/usr/lib/mdm/mdmlogin
[security]
[xdmcp]
[gui]
[greeter]
[chooser]
[debug]
# Note that to disable servers defined in the MDM System Defaults
# configuration file (such as 0=Standard, you must put a line in this file
# that says 0=inactive, as described in the Configuration section of the MDM
# documentation.
#
[servers]
# Also note, that if you redefine a [server-foo] section, then MDM will
# use the definition in this file, not the MDM System Defaults configuration
# file. It is currently not possible to disable a [server-foo] section
# defined in the MDM System Defaults configuration file.
#
