I have the same issue. syslog:
/var/log/syslog.1:Aug 23 15:58:18 eniac kdm[3441]: X server for display :0 terminated unexpectedly /var/log/syslog.1:Aug 23 15:58:18 eniac kdm[3441]: Unable to fire up local display :0; disabling. -- [GM965] Kubuntu: after logging out, the KDM login session opens no more https://bugs.launchpad.net/bugs/404439 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs