According to that bug report it should be fixed in 15.10. I'm using 15.10 and the backports ppa but I still see it happening. I tried manually exporting QT_NO_GLIB=1 let's see how it behaves.
-- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to plasma-desktop in Ubuntu. https://bugs.launchpad.net/bugs/1465866 Title: Can't terminate session after a while To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plasma-desktop/+bug/1465866/+subscriptions -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs