root@ubuntu-phablet:/home/phablet# cat /etc/init/lightdm.conf
# LightDM - light Display Manager
#
# The display manager service manages the X servers running on the
# system, providing login and auto-login services
#
# based on gdm upstart script

description	"LightDM Display Manager"
author		"Robert Ancell <robert.ancell@canonical.com>"

start on ((filesystem
           and runlevel [!06]
           and started dbus
           and plymouth-ready)
          or runlevel PREVLEVEL=S)

stop on runlevel [016]

respawn
respawn limit 2 15

emits login-session-start
emits desktop-session-start
emits desktop-shutdown

script
    if [ -n "$UPSTART_EVENTS" ]
    then
        # Check kernel command-line for inhibitors, unless we are being called
        # manually
        for ARG in $(cat /proc/cmdline); do
            if [ "$ARG" = "text" ]; then
		plymouth quit || :
                stop
		exit 0
            fi
        done

	[ ! -f /etc/X11/default-display-manager -o "$(cat /etc/X11/default-display-manager 2>/dev/null)" = "/usr/bin/lightdm" -o "$(cat /etc/X11/default-display-manager 2>/dev/null)" = "/usr/sbin/lightdm" ] || { stop; exit 0; }

	if [ "$RUNLEVEL" = S -o "$RUNLEVEL" = 1 ]
	then
	    # Single-user mode
	    plymouth quit || :
	    exit 0
	fi
    fi

    exec lightdm
end script

post-start script
    sleep 5
    clear > /dev/tty7
end script

post-stop script
	clear > /dev/tty7
	sleep 1
	if [ "$UPSTART_STOP_EVENTS" = runlevel ]; then
		initctl emit desktop-shutdown
	fi
end script