Regarding this bug (1202754) and bug 1272776 (labeled a duplicate of bug 1237569) - my experience in both cases delay in entering the password results in a hiccup.
Delaying password entry for an update results in the update manager falsely reporting that it is out of action; the requested update will go on to completion without problems to the next step - requesting a restart or reporting the system as up to date. Delaying password entry in the startup window results in no response to the hardware keyboard or the mouse until, for example, clicking on the speaker icon twice. Bringing up the on screen keyboard works to enter a password, as well as clicking the onscreen keyboard access icon twice and entering the password via the hardware keyboard. Running Trusty Tahr, last updated at ~1715 (Zone -8) on 07Mar2014 nvsoar -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1202754 Title: update-manager crashed with SystemExit in exit(): 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntukylin/+bug/1202754/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs