[Bug 2154258] [NEW] Install updated & Power Off dialogue ignores "Power Off"

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I can use Ctrl+Alt+F1 to switch to GUI. But when I pressed Ctrl+Alt+F2 I also saw GUI but background was black and design was also different. I don't start any GUI manually in Ctrl+Alt+F2.
In 1st virtual console I pushed "Power Off" button but nothing happen. Unfortunately I can't reproduce it.

ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: gdm3 50.0-0ubuntu1
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue May 26 16:18:49 2026
InstallationDate: Installed on 2024-12-18 (524 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: gdm3
UpgradeStatus: Upgraded to resolute on 2026-05-20 (6 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug resolute wayland-session
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Install updated & Power Off dialogue ignores "Power Off"
https://bugs.launchpad.net/bugs/2154258
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