[Bug 2036213] Re: Duplicate reboot prompt is displayed

[Robie Basak]

** Tags added: reboot-required

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https://bugs.launchpad.net/bugs/2036213

Title:
  Duplicate reboot prompt is displayed

Status in update-notifier package in Ubuntu:
  New

Bug description:
  See bug 1998947.

  Apparently this has already been reintroduced in Mantic. The scenario
  is, on a default desktop installation:

  1) The user starts an update through update-manager and then leaves it
  running; a new kernel is picked up that requires a reboot. This
  results in a prompt to reboot the system from update-manager but does
  not get acknowledged by the user since they have stepped away.

  2) Time passes.

  3) update-notifier detects the reboot-required state and also prompts
  itself.

  4) The user then comes back. What do they see on the screen?

  Expected behaviour: only one reboot prompt on the screen.

  Actual behaviour: duplicate reboot prompts on the screen.

  I think it's fine for the user to be periodically prompted, but having
  duplicate prompts on the screen at once is a UX regression.

  I have not reproduced this myself, but infer that it can happen
  through the discussion in bug 1998947 so am leaving this bug open so
  it does not get forgotten.

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