Windows 10: Loss of Brightness Control

Windows 10 build 20H2
Dell Inspiron 7570

If I increase the brightness of the display using the brightness keys to reach maximum brightness, and then decrease brightness to minimum; Now if I increase the brightness once again to the maximum, it results in significantly lowered peak brightness. Repeating this process one more time results in complete loss of brightness control

The problem does not stop after a restart either. This problem persists even though the laptop is plugged-in.
I have installed latest display drivers and updated windows as well, but it did not stop the problem. I have tried disabling and then enabling the display driver from Device Manager, which does brighten the screen but I still cannot control the brightness.
I know that the device is not at fault because when I boot into Manjaro Linux, the brightness control works properly.

:)

 

Brightness Control not working in Windows 10

Hi Ella,

To adjust the brightness, see the steps below:

• Go back to Power Options, and tick on the High performance.
• See if you can adjust the brightness.

If this not work, we highly suggest that you create an Administrator account, and re-do the steps above.

Let us know how it goes.

 

monitor brightness?

Hi Tom,

To change your Windows 10 monitor brightness, we suggest that you follow the steps below:

• Click the Windows logo; then, search for Control Panel.
• Select Hardware and Sound.
• Choose Power Options.
• On the next screen you should see brightness slider at the bottom of the Control Panel window.
  

We would appreciate it if you could get back to us and provide us your feedback.

 

Brightness control not working

Hi,

My name is Angel. I am an Independent Advisor. Thank you for posting in Microsoft Community.

I would suggest you to follow these steps:

1. Go into "Control Panel" and then "Power Options".

2. Click the "Change plan settings" link next to which ever plan you are currently using and then click "Change advance power settings".

3. In this new window click "Display" to open up the listings under it.

4. Now locate and click each of the following..."Display brightness", "Dimmed display brightness" and"Enable adaptive brightness".

5. Change each of these to the settings you wish, then click the "Apply" button and finally the "OK" button.

6. You should be good.

Hope the information provided is useful. If the issue persists, reply here and we will be glad to help you.

Angel.