To select the checkbox, open Run -> Enter Dxdiag and press Enter -> Switch to the Display tab. Click on it to expand it, and right-click on the GPU that powers your display (internal or discrete).

Find your display adapter in the list.

Open the Start menu -> Enter Device Manager and open it.

To solve the problem with the brightness control not working in Windows 10, follow these steps If the proper driver is not installed, the device may not work correctly or not work at all. In most cases, computers cannot properly send and receive data without a driver. The driver provides a seamless link between hardware and software. It is a kind of translator between software and hardware, as they are often created by different manufacturers, companies, or people. A device driver is a software that tells the operating system and other software how to interact with certain hardware. Outdated, incompatible, or corrupt drivers are usually the main cause of Windows 10 screen brightness control issues. In this guide, we will present different methods to solve the brightness control problem. This problem is usually caused by incorrect, incompatible, outdated, or faulty drivers.

In most cases, the Windows 10 brightness problem can be solved by simply updating the GPU drivers.

What is the cause of faulty brightness control in Windows 10Ī faulty GPU display driver installed on your computer may be the reason why you can’t adjust the brightness in Windows 10.

Why doesn’t my automatic brightness adjustment work?.

How do I activate the Fn button for brightness?.

What should I do if the brightness bar doesn’t work?.

Why can’t I adjust the brightness in Windows 10?.

To solve the problem with the brightness control not working in Windows 10, follow these steps.

What is the cause of faulty brightness control in Windows 10.

Computer brightness not working