I am running Feisty up to date and cannot log back in after locking the screen, although logging in as a new user works. Killing gnome- screensaver works as a work-around.
/var/log/auth.log says: Mar 29 22:42:54 new unix_chkpwd[9765]: check pass; user unknown Mar 29 22:42:54 new gnome-screensaver-dialog: (pam_unix) authentication failure; logname= uid=1000 euid=1000 tty=:0.0 ruser= rhost= user=dahen Mar 29 22:43:59 new gnome-screensaver-dialog: (pam_unix) auth could not identify password for [dahen] cat /etc/pam.d/gnome-screensaver @include common-auth cat /etc/pam.d/common-auth # # /etc/pam.d/common-auth - authentication settings common to all services # # This file is included from other service-specific PAM config files, # and should contain a list of the authentication modules that define # the central authentication scheme for use on the system # (e.g., /etc/shadow, LDAP, Kerberos, etc.). The default is to use the # traditional Unix authentication mechanisms. # auth required pam_unix.so nullok_secure -- gdm should add symlink to /var/run/gdm_socket during ugrades to prevnet the sceensaver from hanging if no logout has happened https://launchpad.net/bugs/76632 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
