Those are two separate bugs. The lock-screen one was SSSD legitimately denying access because its configuration said it should (the PAM service wasn't on the list, so it defaults to denial).
However, the error you're seeing with polkit is different: May 5 11:55:20 uatlantico polkit-agent-helper-1[16813]: pam_sss(polkit-1:auth): received for user cvargasc: 17 (Failure setting user credentials) That is a different bug and should be split off elsewhere. Also, please provide SSSD debug logs following the guidelines at https://fedorahosted.org/sssd/wiki/Troubleshooting -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1578415 Title: Lockscreen access denied (AD auth via sssd) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/1578415/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
