I'm using Kubuntu and KDM. Updated to 13.10 (64bit, Kubuntu) and encountered the same problem. Cannot mount USB devices. Cannnot change settings in System Settings->Login Screen (apply and leave screen asks to apply again resulting in "Unable to authenticate/execute the action: (code 4)".
Tried #19 * sudo pam-auth-update --force * reboot => did not work I haven't chacked the login screen shutdown problem. I'm looking at the PAM configurations and I have: session optional pam_systemd.so in the common-session file, but don;t know why "required" would need to be set to make this work. Prior version are also optional. Will try it though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1240336 Title: Not authorized to perform operation / Unable to determine the session we are in: No session for pid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1240336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
