I've seen the same behaviour after an upgrade from 12.04 to 14.04. Login was still possible but the screen did not unlock. I had this message in /var/log/auth.log: hostname unix_chkpwd[26503]: could not obtain user info (username)
For me this was caused by wrong file permissions on /etc/shadow. The file was not readable by the shadow group. If the workaround mentioned in comment #2 works, have a look at these file permissions: -rw-r--r-- 1 root root 925 sep 9 18:42 /etc/group -rw-r--r-- 1 root root 1944 sep 9 18:42 /etc/passwd -rw-r----- 1 root shadow 1132 sep 9 18:42 /etc/shadow -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1314095 Title: Unity Lockscreen in 14.04 can't unlock when using LDAP account To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1314095/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
