Can you post /var/log/syslog and /var/log/kern.log after the crash? What are the contents of /etc/pam.d/common-* and /etc/pam.d/gnome-screensaver. Does the username or password contain weird characters (if posting them here, for your security, please change the password to something else)?
Can you post /var/log/syslog and /var/log/kern.log after the crash? What are the contents of /etc/pam.d/common-* and /etc/pam. d/gnome- screensaver. Does the username or password contain weird characters (if posting them here, for your security, please change the password to something else)?