As suspected its caused by the light-locker integration. More specifically by xfpm_update_logind_handle_lid_switch in xfpm-settings.c:
logind-handle-lid-switch = true when: lock_on_suspend == true and (lid_switch_on_ac == suspend or lid_switch_on_battery == suspend) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1623385 Title: Suspend on lid close can not be configured individually for battery/AC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1623385/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
