OK, I was able to trace down the issue. It happened that there is an empty file .config/kglobalshortcutsrc.lock which caused the startup to hang. After removing that file, all is working again.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1445768 Title: Plasma 5 hangs on Startup (Kubuntu 15.04 beta 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kde-workspace/+bug/1445768/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
