In this article, we will walk you through several methods to fix brightness control issues on Ubuntu 22.04 with Nvidia drivers. These issues can often arise due to conflicts between the system and graphics drivers. Let’s dive into the solutions.
To fix brightness control issues on Ubuntu 22.04 with Nvidia drivers, you can try editing the GRUB configuration, reverting to a previous version of the Nvidia driver, updating the Linux kernel, installing the Nvidia-dkms package, or using the Soft Brightness tool.
Method 1: Edit the GRUB Configuration
The GRUB bootloader can sometimes be the cause of brightness control issues. To solve this, we will add a parameter to the GRUB configuration.
- Open the terminal by pressing
Ctrl + Alt + T. In the terminal, type the following command to open the GRUB configuration file:
sudo nano /etc/default/grubsudo is used to execute the command with root privileges, nano is a command-line text editor, and /etc/default/grub is the location of the GRUB configuration file.
- In the opened file, find the line that reads:
GRUB_CMDLINE_LINUX_DEFAULT="..."Add acpi_backlight=vendor to the options within the quotes. This parameter forces the system to use vendor-specific drivers for the backlight control. The line should now look like this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"- Save the file by pressing
Ctrl + Oand then exit by pressingCtrl + X. - Now, we need to update the GRUB configuration. Run the following command:
sudo update-grub- Finally, reboot your system by typing
sudo rebootin the terminal. After rebooting, check if the brightness control is working.
Method 2: Revert Nvidia Driver
If the issue started after a recent Nvidia driver update, reverting to a previous version might solve the problem.
- Open the “Software & Updates” application from the Ubuntu dash.
- Navigate to the “Additional Drivers” tab.
- Select an older version of the Nvidia driver and apply the changes.
- Reboot your system and check if the brightness control is working.
Method 3: Update the Linux Kernel
Sometimes, updating the Linux kernel can solve brightness control issues. Here’s how to do it:
- Open the terminal and run the following command to update your system:
sudo apt update && sudo apt upgrade- Check for any available kernel updates by running:
sudo apt search linux-image- Install the latest available kernel version. For example, to install version 5.19.11, run:
sudo apt install linux-image-5.19.11-051911-generic- Reboot your system and check if the brightness control is working.
Method 4: Install the Nvidia-dkms Package
The nvidia-dkms package can help resolve compatibility issues between the Nvidia drivers and the Linux kernel.
- Open the terminal and run the following command to install the
nvidia-dkmspackage:
sudo apt install nvidia-dkms-525- Reboot your system and check if the brightness control is working.
Method 5: Use the Soft Brightness Tool
If none of the above methods work, you can try using the Soft Brightness tool. This tool allows you to adjust the brightness using both the Ubuntu control and keyboard shortcuts.
- Visit the GitHub repository here and follow the installation instructions.
- After installing Soft Brightness, you should be able to adjust the brightness.
Conclusion
In this article, we have covered several methods to fix brightness control issues on Ubuntu 22.04 with Nvidia drivers. Remember to always backup your important files and configurations before making any changes to your system. If none of the above solutions work, you may need to seek further assistance or consider using alternative methods to adjust the brightness on your specific hardware configuration.
To open the terminal in Ubuntu 22.04, you can press Ctrl + Alt + T on your keyboard.
The GRUB (Grand Unified Bootloader) is a commonly used bootloader in Linux systems. It is responsible for loading the operating system during boot time and allows users to choose which operating system to boot into if multiple options are available.
To revert to a previous version of the Nvidia driver in Ubuntu 22.04, you can open the "Software & Updates" application from the Ubuntu dash, navigate to the "Additional Drivers" tab, select an older version of the Nvidia driver, and apply the changes.
To update the Linux kernel in Ubuntu 22.04, you can open the terminal and run the command sudo apt update && sudo apt upgrade to update your system. Then, check for any available kernel updates by running sudo apt search linux-image. Finally, install the latest available kernel version using the command sudo apt install linux-image-[version], replacing [version] with the desired kernel version number.
The nvidia-dkms package is a package that helps resolve compatibility issues between the Nvidia drivers and the Linux kernel. It is installed using the command sudo apt install nvidia-dkms-[version], where [version] is the specific version of the package.
After installing the Soft Brightness tool, you can adjust the brightness using both the Ubuntu control and keyboard shortcuts. The specific steps may vary depending on the tool’s interface and configuration. Please refer to the Soft Brightness documentation or user guide for detailed instructions on how to use the tool.
