I am affected, too. Each time I want to log-in again after I locked the screen within unity, I need to select "Switch account". Direct re-log-in is not working. The session is restored successfully, but it's a workaround.
Set-Up: Ubuntu 14.04.3 LTS lightdm 1.10.5pam pamusb-tools 0.5.0-4 pamusb-common 0.5.0-4 Error message in auth.log: Aug 10 10:33:28 nauru compiz: PAM unable to dlopen(pam_usb.so): /lib/security/pam_usb.so: undefined symbol: pam_get_item Aug 10 10:33:28 nauru compiz: PAM adding faulty module: pam_usb.so Aug 10 10:33:34 nauru compiz: gkr-pam: unlocked login keyring Aug 10 10:33:37 nauru compiz: PAM unable to dlopen(pam_usb.so): /lib/security/pam_usb.so: undefined symbol: pam_get_item Aug 10 10:33:37 nauru compiz: PAM adding faulty module: pam_usb.so Aug 10 10:33:42 nauru dbus[523]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.12" (uid=0 pid=1300 comm="lightdm ") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.64" (uid=1000 pid=2863 comm="/usr/lib/x86_64-linux-gnu/indicator-session/indica") Is there anything else I could provide to help? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1293058 Title: compiz: PAM unable to dlopen(pam_usb.so): /lib/security/pam_usb.so: cannot open shared object file: No such file or directory To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1293058/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs