How To Fix Brightness Problem In Ubuntu 22.04 LTS In 2024

Fix Brightness Problem In Ubuntu 22.04 LTS In 2024

Having trouble adjusting the brightness on your laptop after installing Ubuntu 22.04 LTS? Don’t worry, This guide will walk you through several ways to fix the brightness problem in Ubuntu and it’s derivatives.

How To Fix Brightness Problem In Ubuntu 22.04 LTS In 2024

Method 1:

Fix Brightness Problem With Brightness Controller

This method will use the  app called “Brightness Controller.”

Run the following commands to add the app’s PPA in Ubuntu:

sudo add-apt-repository ppa:apandada1/brightness-controller
sudo apt update
sudo apt install brightness-controller

Method 2:

Fix Brightness Problem By Editing Grub for Hardware-Specific Drivers

This method involves tweaking the Grub configuration file to activate device-specific brightness drivers. Go through the following step by step:

1. Open the file /etc/default/grub with your preferred text editor (e.g., gedit).
2. Locate the line starting with GRUB_CMDLINE_LINUX_DEFAULT="quiet splash".
3. Modify the line to the following:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

4. Save the file and update Grub with the following command:

update-grub

5. Restart your Ubuntu and see whether the problem has been fixed or not..

Method 3:

Fix Brightness Problem via Xrandr Command

Run the command to identify your display name:

xrandr | grep " connected" | cut -f1 -d " "

Replace system-display-name in the following command with the actual name you discovered, then set your desired brightness (0.6 here being 60%):

xrandr --output system-display-name --brightness 0.6

Choose the method that best suits your needs and enjoy perfectly adjusted brightness on your Ubuntu system. Let us know inf you any other solution for this issues. We would love to feature it in this article.