CK doesn't launch its session in tty #69

~ $ ck-list-sessions
Session1:
        unix-user = '1000'
        realname = '(null)'
        seat = 'Seat1'
        session-type = ''
        active = TRUE
        x11-display = ':0'
        x11-display-device = '/dev/tty7'
        display-device = ''
        remote-host-name = ''
        is-local = TRUE
        on-since = '2016-06-16T20:14:13.645688Z'                                                                                                                    
        login-session-id = '3'

~ $ ck-list-sessions
Session1:
    unix-user = '1000'
    realname = '(null)'
    seat = 'Seat1'
    session-type = ''
    active = FALSE
    x11-display = ':0'
    x11-display-device = '/dev/tty7'
    display-device = ''
    remote-host-name = ''
    is-local = TRUE
    on-since = '2016-06-16T20:14:13.645688Z'
    login-session-id = '3'