Public bug reported:

After hibernation the backlight of my laptop onboard-keyboard is not
working anymore.

Trying to increase brightness by brightnessctl does not work ether.


After a full restart the backlights are back on again.


Laptop:


XMG Apex15, Model: NH15Axx

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: hibernate (not installed)
ProcVersionSignature: Ubuntu 5.13.0-44.49~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-44-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.26
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Dec  3 10:09:04 2024
InstallationDate: Installed on 2022-01-04 (1063 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
ProcEnviron:
 LANGUAGE=de_AT:de
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
SourcePackage: hibernate
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug focal

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https://bugs.launchpad.net/bugs/2090911

Title:
  After hibernation the backlight of the onboard-keyboard of my laptop
  is not working anymore.

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