Indeed, we need to track where is the input lost. When you experience it again, can you please check if volume buttons still work? Unity8 isn't stuck altogether because you can see notifications and indicators updating, so somehow no input reaches unity8.
I wonder if unity-system-compositor could be involved. ** Also affects: unity-system-compositor (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1491566 Title: Greeter and edges not responsive after an incoming SMS To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1491566/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs