[Bug 1807900] Re: update-manager suggests to use Livepatch, which is not available

[Matthew Paul Thomas]

Ah, well spotted. Several programs should vary their UI depending on
whether canonical-livepatch is installed. update-manager is one of them
(this bug); software-properties is another; and gnome-initial-setup is
another.

Bug 1770686 reveals that the Livepatch settings in software-properties
depend, in turn, on the gnome-online-accounts-panel in gnome-control-
center. This isn’t a package-level dependency: you can still install and
use software-properties without gnome-online-accounts, you just don’t
see the Livepatch feature. So I guess anything linking to the software-
properties Livepatch UI should check for the existence of that panel
*and* of software-properties itself.

That doesn’t change the UI design for this bug (if you can’t turn on
Livepatch, it’s not “available”), but it will affect the implementation.

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https://bugs.launchpad.net/bugs/1807900

Title:
  update-manager suggests to use Livepatch, which is not available

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu MATE 18.04.1
  update-manager 1:18.04.11.7

  Steps to reproduce:
  1. After installing updates via update-manager, a dialog box appears stating 'Tip: You can use Livepatch to keep your computer more secure between restarts.' 
  2. Click 'Settings and Livepatch...'.
  3. software-properties-gtk launches, showing the 'Updates' tab. 
  4. There is no option to enable Livepatch, either in the Updates tab or elsewhere.

  Probably related to Bug #1770686. The dialog box should not suggest to
  use Livepatch if gnome-control-center is not installed.

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