I have a soluton, at least for XFCE: (translated from the German version, so wording may be inaccurate) Go to XFCE Menu -> Settings -> Settings -> Startup and Sessions -> Programs started automatically and activate "Policykit Authentication Agent".
Maybe there is something similar in LXDE. But the question remains: Why did this deactivate itself ? At least on my Laptop, I am 100% sure that I never, ever opened this part of the settings. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/912857 Title: Authenticate window doesn't appear anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/912857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs