@mmarley, comment #12: see also bug #1450137 (Qt5 applications crash when switching screens) since you are using Xenial 16.10
Removing tag= xenial here since this is another shoe, with newer version of Qt ** Tags removed: xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs