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 Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1491566 Title: Greeter and edges not responsive after an incoming SMS Status in Canonical System Image: Confirmed Status in qtmir package in Ubuntu: New Status in unity-system-compositor package in Ubuntu: New Status in unity8 package in Ubuntu: Confirmed Bug description: RC proposed MX4 r100 This happened twice in the last two days Receive an incoming text Screen turns on and notification is shown notification goes away try to interact with the phone and nothing works another text message is received and the notification is displayed To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1491566/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp