found solution for me (and some others), as I have a 64bit system; Kubuntu Forums:
After upgrading to 13.04 trying to log into KDE pops up an error message appeared "Could not start d-bus. Can you Call qdbus? Running qdbus pops up the error: qdbus: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qdbus': No such file or directory The reason was that qdbus:i386 was installed instead of qdbus:amd64 (my system is 64bit). Running "apt-get install qdbus:amd64" fixed the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1175251 Title: kubuntu upgrade from 12.10 to 13.04 leaves system unusable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1175251/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
