Curiouser and curiouser. I've just tried plugging in an external display (for the first time since upgrading to 16.04).
Both gui and randr reported the correct display configuration and both displays worked. Now that I've unplugged that display again, the systemd inhibit block has disappeared and the system will now suspend on lid close both on mains and battery power. This correct behaviour has now survived a cold boot. So perhaps just one of those things - the settings appear to have sorted themselves out after adding and removing an external monitor. I shall leave this open just in case it helps anyone else. Love and peace, Neil -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1577906 Title: Laptop sleep on lid close apparently blocked by unity-settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1577906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs