$ dpkg -l|egrep '(consolekit|gdm)' ii consolekit 0.3.1-0ubuntu1 framework for defining and tracking users, s ii gdm 2.27.4-0ubuntu11 GNOME Display Manager
$ dpkg -l|egrep '(consolekit|gdm)'
ii consolekit 0.3.1-0ubuntu1 framework for defining and tracking users, s
ii gdm 2.27.4-0ubuntu11 GNOME Display Manager