[Bug 2133184] Re: Update Notifier "Restart" action does not trigger system reboot.

[Ravi Kant Sharma]

** Tags added: rls-qq-incoming

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https://bugs.launchpad.net/bugs/2133184

Title:
  Update Notifier "Restart" action does not trigger system reboot.

Status in update-notifier package in Ubuntu:
  New

Bug description:
  After installing updates, the Update Notifier shows the “Restart
  required” prompt. However, clicking the Restart button provided by
  Update Notifier does not trigger any reboot sequence. The button
  simply does nothing—no shutdown signal, no logout, and no transition
  into reboot.

  Regular system reboot via the system menu or using the reboot command works normally.
  The issue occurs only when attempting to reboot through the Update Notifier’s post-update restart button.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: update-notifier 3.201
  ProcVersionSignature: Ubuntu 6.17.0-7.7-generic 6.17.2
  Uname: Linux 6.17.0-7-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Nov 28 03:31:42 2025
  InstallationDate: Installed on 2025-10-09 (49 days ago)
  InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Release amd64 (20251007)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: update-notifier
  UpgradeStatus: No upgrade log present (probably fresh install)

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