[Bug 1990742] [NEW] screen not consistently locking when lid is closed

[Launchpad Bug Tracker]

*** This bug is a security vulnerability ***

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I have GNOME configured to lock the screen when the screen is blanked,
and to blank the screen when the lid is closed:

org.gnome.settings-daemon.plugins.power lid-close-battery-action 'blank'
org.gnome.desktop.screensaver lock-delay uint32 0
org.gnome.desktop.screensaver lock-enabled true

This worked fine in Jammy: whenever my screen was unlocked and I closed
my laptop lid, it locked immediately, i.e., if I immediately reopened my
lid, the screen was locked.

After having just upgraded to Kinetic, however, sometimes when I close
the lid it locks as described above, and sometimes it just... doesn't,
i.e., when I open the lid again the screen is unlocked and I can just
keep working.

I have been unable to determine what the factors are which control
whether the screen locks when I close the lid.

There is a moderate security implication here, as it's problematic for
someone's screen not to lock when they think that it did.

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: gnome-shell 43.0-1ubuntu1
ProcVersionSignature: Ubuntu 5.19.0-15.15-generic 5.19.0
Uname: Linux 5.19.0-15-generic x86_64
ApportVersion: 2.23.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 24 17:57:37 2022
DisplayManager: gdm3
InstallationDate: Installed on 2019-08-16 (1135 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
RelatedPackageVersions: mutter-common 43.0-1ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to kinetic on 2022-09-24 (0 days ago)

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kinetic third-party-packages
-- 
screen not consistently locking when lid is closed
https://bugs.launchpad.net/bugs/1990742
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