When logging into KDE5 (or XFCE4), I faced the same symptoms today. Deleting everything in ~/.cache allowed me to log back in. The main KDE panel had to be recreated.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1435061 Title: KDE 5 is corrupted, after updating Kubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kde4libs/+bug/1435061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
