/etc/init/kdm.conf is in kdm 4:4.8.5-0ubuntu0.4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53  | # kdm - KDE Display Manager
#
# The display manager service manages the X servers running on the
# system, providing login and auto-login services
description     "K Display Manager"
author          "Richard Johnson"  
start on ((filesystem
           and runlevel [!06]
           and started dbus
           and (drm-device-added card0 PRIMARY_DEVICE_FOR_DISPLAY=1
                or stopped udev-fallback-graphics))
          or runlevel PREVLEVEL=S)
stop on runlevel [016]
emits login-session-start
emits desktop-session-start
emits desktop-shutdown
env XORGCONFIG=/etc/X11/xorg.conf
script
    if [ -n "$UPSTART_EVENTS" ]
    then
	[ ! -f /etc/X11/default-display-manager -o "$(cat /etc/X11/default-display-manager 2>/dev/null)" = "/usr/bin/kdm" ] || { stop; exit 0; }
        if [ "$RUNLEVEL" = S -o "$RUNLEVEL" = 1 ]
        then
            # Single-user mode
            plymouth quit || :
            exit 0
        fi
    fi
    if [ -r /etc/default/locale ]; then
        . /etc/default/locale
        export LANG LANGUAGE LC_MESSAGES
    elif [ -r /etc/environment ]; then
        . /etc/environment
        export LANG LANGUAGE LC_MESSAGES
    fi
    export XORGCONFIG
    exec kdm
end script
post-stop script
	if [ "$UPSTART_STOP_EVENTS" = runlevel ]; then
		initctl emit desktop-shutdown
	fi
end script
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