I have been continuing my efforts to reproduce, but without any success so far. I have created a script to automate the process which I am sharing here in the hope that someone else will have more success with it.
The script either uses simulated sms messages (powerd receives the SMS event and tells USC to turn the screen on) or talks directly to USC to turn the screen on. Just uncomment the line for the method you prefer (and comment the other). For the simulated message approach to work you need to setup the system properly, read: https://wiki.ubuntu.com/Touch/Testing/PhoneAndMessagingSimulation . The scripts include some reasonable sleeps to let things settle. Increase them or decrease them to simulate different scenarios better. I invoke the script with: while true; do sh bug_1491566.sh; done Note: the slide gesture doesn't always slide in the right direction, not sure why, but in any case you can see some effect on screen -- 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: Shell not responsive after an incoming SMS or call notification Status in Canonical System Image: Confirmed Status in qtmir package in Ubuntu: Incomplete Status in unity-system-compositor package in Ubuntu: Confirmed Status in unity8 package in Ubuntu: Incomplete 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 Adding incoming calls as also triggering the issue 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