Sorry for the delay - I've been on travel for several weeks and just now am getting back to troubleshooting this.
Per Sebastien Bacher's suggestion: $ polkit-auth --show-obtainable <doesn't output anything> -$ ck-list-sessions <doesn't output anything> -$ cat /etc/PolicyKit/PolicyKit.conf <?xml version="1.0" encoding="UTF-8"?> <!-- -*- XML -*- --> <!DOCTYPE pkconfig PUBLIC "-//freedesktop//DTD PolicyKit Configuration 1.0//EN" "http://hal.freedesktop.org/releases/PolicyKit/1.0/config.dtd"> <!-- See the manual page PolicyKit.conf(5) for file format --> <config version="0.1"> <match user="root"> <return result="yes"/> </match> <define_admin_auth group="admin"/> </config> -- 'Unlock' button in admin utilities greyed out https://bugs.launchpad.net/bugs/231246 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs