Ubuntu has upgraded to 13.10, but when I reboot I can't login, even when I try with the guest session. I am brought back to the login screen.
I press Ctrl+Alt+F1 and login. Then I remove the file
~/.Xautohrity and reboot. After that it can login from LightDM but a new error appears:
Could not acquire name on session bus
and when I reboot it can't login again.
How can I fix this? Note that I have another Desktop environment installed alongside Unity.