Turn off Windows 10 screen brightness auto-adjustment

Turn off Windows 10 screen brightness auto-adjustment

The Adaptive Brightness feature allows Windows to automatically adjust the screen’s brightness according to the ambient light thanks to the light sensor built into the screens, especially laptops.

Disable Adaptive Brightness on Windows 10

  • What is Adaptive Brightness?
  • Turn off lighting on Win 10 via MS Service
  • Turn off auto-brightness Windows 10 via Control Panel
  • Turn off auto-brightness in Settings
  • Turn off self-adjusting screen brightness in the Command Prompt
  • Turn off the feature to manually adjust screen brightness for a specific power plan in the Command Prompt
  • Turn off Intel battery saving technology
  • Turn off AMD battery saver technology

What is Adaptive Brightness?

Adaptive Brightness is a built-in feature on Windows that allows the operating system to automatically adjust the brightness of the screen according to the ambient light, thanks to the light sensor built into the screen, especially. are new laptop lines.

But not all users find this feature useful, especially when switching from a light background to a dark background, and vice versa. On the other hand, this feature only works well on computers that have fully installed drivers. As a result, many people find ways to disable this feature. If you are the same then the workaround can be found in the next section of this article.

Turn off lighting on Win 10 via MS Service

Press Windows + R to open the Run window, type services.msc and press Enter .

In the services window that opens, find and double-click Sensor Monitoring Service . Click Stop , then under Startup type click the down arrow, select Disabled and click OK to save it.

Restart your computer to see if the auto brightness has been turned off.

Turn off auto-brightness Windows 10 via Control Panel

To enable or disable the Adaptive Brightness feature in Windows 10, follow the steps below:

First, click the Start button, then enter the keyword Power Options in the Search box to open the Power Options window.

On the Power Options window, click Change Plan Settings next to the Power Plan you are using or the Power Plan you want to edit.

At the bottom of the window you will see the option Change advanced power settings , your task is to click to select that option.

At this point, a small dialog box will appear on the screen.

In this dialog box, scroll down to find an option called Display option , then click on the small plus (+) icon next to the option.

After clicking on the plus (+) icon, you will see options on the screen. Your task is to find and select the Enable adaptive brightness option . Here you proceed to make the changes you want, and then click OK to save the changes.

Also, on Windows 8.1 or versions of Windows 10 released before the Windows 10 Fall Creator Update you can turn off automatic brightness using System Settings. From Windows 10 Fall Creator Update onwards, this feature has been removed.

To change screen brightness through system settings, go to Settings => System => Display .

Next, scroll down to find the option to Adjust my screen brightness automatically and switch to ON or OFF to enable or disable the option.

Turn off auto-brightness in Settings

Turn off auto-brightness in Settings

1. Open Settings and click on the System icon .

2. Click Display on the left side and uncheck Change brightness automatically when lighting changes on the right side under Brightness and color .

3. Now, you can close Settings if you want.

Turn off self-adjusting screen brightness in the Command Prompt

1. Open Command Prompt.

2. Enter the command below into the Command Prompt and press Enter.

(With battery)

powercfg -setdcvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 0

Or:

(When plugged in)

powercfg -setacvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 0

3. Copy and paste the command below into the Command Prompt and press Enter to apply the change. Now, you can close the Command Prompt if you want.

powercfg -SetActive SCHEME_CURRENT
Turn off self-adjusting screen brightness in the Command Prompt

Turn off the feature to manually adjust screen brightness for a specific power plan in the Command Prompt

1. Open Command Prompt.

2. Copy and paste the powercfg / L command into the Command Prompt and press Enter. Note down the GUID number (example: 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c ) of the power plan you want to apply.

Power plan (example: High performance ) with an * to the right is your currently active power plan.

Record the GUID of the power plan

3. Enter the command below that you want to use into the Command Prompt and press Enter.

(With battery)

powercfg -setdcvalueindex GUID 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 Index

Or:

(When plugged in)

powercfg -setacvalueindex GUID 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 0

Replace the GUID in the above command with the actual GUID from step 2 above for the power plan you want to apply this to.

Example: To disable screen brightness auto-adjustment for GUID power High performance (8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c), enter the following command:

powercfg -setacvalueindex 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 0
Enter the corresponding command in the Command Prompt

4. Enter the command below into the Command Prompt and press Enter to apply the change. Then you can close the Command Prompt if you want.

powercfg -SetActive GUID

Replace the GUID in the above command with the same GUID from step 2 above for the power plan you want to apply.

For example:

powercfg -SetActive 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c
Enter the command into the Command Prompt to apply the change

Turn off Intel battery saving technology

If your computer still automatically changes the screen brightness after doing the above, see if you are using Intel graphics? Intel integrates battery saving technology to help increase the usage time when carrying the laptop out. This feature may be the reason why auto-brightness is turned off and the screen will automatically dim according to web page colors.

To disable this feature on Intel graphics machines, do the following:

  • Right-click on the desktop> select Graphics Properties . If this option is not here, go to Control Panel > change View by (in the upper right corner, under the search box) to Small icons > click Intel HD Graphics .
  • In the window that appears Intel HD Graphics Control Panel, select Power .
  • In the left pane select On Bettery .
  • Finally, go to Display Power Saving Technology > Display > Apply option and close the window.

Turn off AMD battery saver technology

If you are using AMD graphics, follow these steps to turn off Windows 10 auto-brightness:

Open the Catalyst Control Center by typing CCC in the search box> select CCC – Advanced> Graphics> Power Play> turn on Vari-Bright.

Refer to some more articles below:

  • Fix Windows 10 errors with just 1 click with FixWin
  • Clear Windows 10 update Cache to free up memory space
  • Instructions for upgrading from 32-bit to 64-bit Windows 10

Good luck!