I changed the screen resolution on Ubuntu 12.08 using the GUI, but I think I've changed it to an unsupported resolution, and now the system logs me out immediately after I login. I tried using xrandr to fix it, but haven't had any progress yet. I can log in with the guest account though
What can I do to fix this?
/var/log/Xorg.0.logand the contents of.xsession-errorsin your home directory after a failed login attempt. – Gilles Jun 12 '12 at 22:11