I don't know if this is the same root cause as the original reporter but I have my particular case resolved. The problem was caused by putting /etc under Subversion control. The .svn directory in /etc/ConsoleKit/seats.d messed up ConsoleKit. Simply removing this directory resolved all of my issues. Now ck-list-sessions reports seat = 'Seat 1'. Thanks, Chris and Robert.
I don't know if this is the same root cause as the original reporter but I have my particular case resolved. The problem was caused by putting /etc under Subversion control. The .svn directory in /etc/ConsoleKit /seats. d messed up ConsoleKit. Simply removing this directory resolved all of my issues. Now ck-list-sessions reports seat = 'Seat 1'. Thanks, Chris and Robert.