Linux Mint Mate 16.04.1 - Não consigo configurar login automatico

Boa noite,
Estou com uma dificuldade de configurar o login automático no Linux Mint Mate 16.04.1, apesar de o mesmo já estar configurado no arquivo de configuração.
Quando inicio a máquina deveria entrar automaticamente sem pedir nome de usuário e senha, mas mesmo assim ele ainda pede o usuário e a senha.
Aguardo ajuda. Obrigado.

[code
# 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 "
#
# 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]
AutomaticLoginEnable=true
AutomaticLogin=desktop
TimedLoginEnable=false
TimedLogin=desktop
TimedLoginDelay=10

Greeter=/usr/lib/mdm/mdmgreeter

DefaultSession=mate.desktop

SelectLastLogin=true

[security]

[xdmcp]

[gui]

[greeter]

GraphicalTheme=Split

BackgroundColor=#023562

HTMLTheme=Numix

BackgroundType=0

DefaultWelcome=true

[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.
#
code]