The problem is that the program with dbus address :1.219 requested the "active" state for the system, i.e. it has disallowed suspend.
The program first requests the "active" state and then clears it: 2017-02-28T09:50:13.018142+01:00 ubuntu-Inspiron-3138 repowerd[1041]: UnityScreenService: dbus_requestSysState(:1.219,active,1) 2017-02-28T09:50:13.030120+01:00 ubuntu-Inspiron-3138 repowerd[1041]: UnityScreenService: dbus_requestSysState(:1.219,active,1) => 1 2017-02-28T09:50:14.484885+01:00 ubuntu-Inspiron-3138 repowerd[1041]: UnityScreenService: dbus_clearSysState(:1.219,1) And ~10 seconds later it requests the "active" state again and never clears it after that: 2017-02-28T09:50:25.021176+01:00 ubuntu-Inspiron-3138 repowerd[1041]: UnityScreenService: dbus_requestSysState(:1.219,active,1) 2017-02-28T09:50:25.030948+01:00 ubuntu-Inspiron-3138 repowerd[1041]: UnityScreenService: dbus_requestSysState(:1.219,active,1) => 2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1668596 Title: Closing the lid does not suspend the device To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1668596/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs