Brightness can't be changed from keyboard

[Adrian]

Brightness level can't be changed from keyboard with the Fn key and the corresponding designated key. Other functions like changing volumes involving the Fn key work perfectly. The only way I can change brightness is from the status bar.

Current OS: Ubuntu 19.04 Disco Dingo (development branch)
Package version: gnome-shell 3.32.0-1ubuntu1

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: gnome-shell 3.32.0-1ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-7.8-generic 5.0.0
Uname: Linux 5.0.0-7-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 1 20:46:39 2019
DisplayManager: gdm3
InstallationDate: Installed on 2018-12-31 (91 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to disco on 2019-03-29 (3 days ago)

[Daniel van Vugt (vanvugt)]

Brightness keys (if not implemented in hardware directly) need to be known and mapped by the kernel.

Please:

1. Tell us the exact laptop model.

2. Run: sudo apt install evtest

3. Run: sudo evtest

4. Select your keyboard and then tap the Fn+brightness keys.

5. Copy and paste what you see in the evtest output.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]