OK, I did as in the bug description's "untested patch" and changed the line
default) to default("") in the file /etc/X11/Xsession.d/20x11-common_process-args and the problem disappeared. Please note that there is a mistype in the bug descripton's "untested patch": default|"") instead of default(""). Hope this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/710144 Title: Xsession: unable to launch "" X session --- "" not found; falling back to default session. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs