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.
Best Answer
I had a similar problem but fixed it by removing Cinnamon. If this is also the case for you, try the following:
sudo apt-get remove --purge cinnamon*
and thensudo apt-get autoremove
If you don't have cinnamon installed but any other desktop environment alongside Unity, try to uninstall those. (Gnome fallback should be fine though)