I have experienced the problem also. the symptom I observed: the login screen was coming back after normal login. The error was not evident. .xsession_errors contained something similar as level15 first reported for this bug.
the "qt-language-selector --mode select" workaround works for me too -- 7.10: en_CA causes KDE apps to fail to start https://bugs.launchpad.net/bugs/191327 You received this bug notification because you are a member of Kubuntu Team, which is a bug contact for kdelibs in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs