[Fixed] Brightness Problem in Ubuntu 22.04 LTS

After installing Ubuntu 22.04 LTS on laptop brightness always full is there any solution to get it normal?

ubuntu 22.04.2 point release

Yes, there are plenty of options available on internet or you can follow our guide that helps you to fix brightness issue in ubuntu 22.04 LTS.

It is occured due to some os does not contain proper drivers or not setup drivers apps in operating system. So in that type case you have to fix manually ✌

How Can I Fix Brightness Problem in Ubuntu 22.04 LTS

In this very first method, we will take the help of software or app called “Brightness Controller“. Run the following command to add PPA and install the Brightness Controller in Ubuntu 22.04 LTS.

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

Method 2:
In this method, we will edit the Grub file to configure the setting and fix the brightness problem in Ubuntu 22.04 LTS. You need to open the file /etc/default/grub using gedit or any favorite editor of yours.

  • sudo gedit /etc/default/grub

After the file is open on editor, find the below line.


Change the above line to this:

  • GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash acpi_backlight=vendor”

These changes will load device-specific drivers in Linux. Save the file and close the text editor and run the following command to update the grub and restart your Ubuntu. after reboot, try adjusting the brightness using Laptop’s dedicated control keys.

  • update-grub

Method 3:

In this method, run the following command to find out the name of your display using the below command.

  • xrandr | grep ” connected” | cut -f1 -d ” “

So, the next is to change the brightness using the display name.

  • xrandr –output system-display-name –brightness 0.7

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