Comment 44 for bug 459730

Having just encountered this on a copy of 12.04 Server running on a virtual machine, I endorse Kenyon Ralph's approach in post 33 above. I don't intend to run X on this machine, so it's easiest to comment out the part at the end of /etc/rsyslog.d/50-default.conf that pipes some output to /dev/xsession.

I think the server version of this file should have the pipe to xsession disabled by default. Ubuntu Server doesn't ship with a version of X so the current 50-default.conf file conflicts with the basic configuration of the distribution.