After realizing that this happened with my user only (the guest session was not affected by this bug), I removed the .Xauthority, .ICEauthority and .dbus/ files from my user's home and the problem went away. I'm not sure which of the three was the issue.
Anyway, I suppose I should close this bug then. ** Changed in: pulseaudio (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1523157 Title: Computer is idle for 20-25 seconds after login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1523157/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs