Ubuntu
policykit-desktop-privileges package

  1. Bug #1240336
  2. Comment #70

Comment 70 for bug 1240336

Revision history for this message
Rob Dean (rob-dean) wrote : Re: Not authorized to perform operation / Unable to determine the session we are in: No session for pid

I'm having this problem on upgrade to Utopic (Kubuntu system) - ie unable to mount USB, clicking shutdown gets me to the login screen. I've tried appending

session required pam_loginuid.so
session required pam_systemd.so

to /etc/pam.d/lightdm and rebooting but didn't fix the problem. Anyone have any other suggestions?