There is a way to reproduce specific to ubuntu-system-settings, the symptoms are similar but I am not sure the cause is the same.
Test Case: 1. Launch system settings 2. Tap on accounts 3. Tap on back 4. There is a black screen for 20s (bug 1292652). Wait until it goes away and u-s-s is displayed -> At this point launcher, indicators and dash are working (edges are responsive) but u-s-s doesn't receive input event (cannot scroll the screen or tap an icon) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1295623 Title: Sometimes input breaks and only edges are responsive To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1295623/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
