[Bug 1847896] Autopkgtest regression report (systemd/242-7ubuntu3.2)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted systemd (242-7ubuntu3.2) for eoan have finished running.
The following regressions have been reported in tests triggered by the package:

gvfs/1.42.1-1ubuntu1 (amd64)
systemd/242-7ubuntu3.2 (ppc64el)
ndctl/unknown (armhf)
casper/1.427 (amd64)
netplan.io/0.98-0ubuntu1 (ppc64el)
munin/unknown (armhf)
linux-oem-osp1/5.0.0-1026.29 (amd64)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/eoan/update_excuses.html#systemd

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1847896

Title:
  Unable to shutdown or restart from log-in screen

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Eoan:
  Fix Committed
Status in systemd source package in Focal:
  Fix Released

Bug description:
  [Impact]

   * Shutdown and restart options don't work from the login screen, when
  the user is not logged in.

  [Test Case]

   * Start the system and don't log in, or log out in case the system is set up with autologin.
   * Restart, then shut down the system using the option in the upper right corner of the login screen.
   * Observe both operations working.

  [Regression Potential]

   * The fix is treating treating the greeter as user display sessions
  by cherry-picking upstream's change released in v243. The fix itself
  is very small, but there may be non-obvious security implications.

  [Original Bug Text]

  When selecting the shutdown icon from the log-in screen you are
  prompted with a dialog that allows you to either cancel, restart or
  shutdown.

  It has been noted that the restart and shutdown options no longer
  work.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: gnome-shell 3.34.1-1ubuntu1
  ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
  Uname: Linux 5.3.0-18-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sun Oct 13 09:08:23 2019
  DisplayManager: gdm3
  InstallationDate: Installed on 2019-05-17 (148 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190517)
  RelatedPackageVersions: mutter-common 3.34.1-1ubuntu1
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

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