6 ways to turn off Windows 10’s auto-brightness feature

What is Adaptive Brightness?

Adaptive Brightness is a built-in feature on Windows 10 that allows the operating system to automatically adjust the screen’s brightness according to the ambient light, thanks to the built-in light sensor on the screen. especially new laptops.

But not all users find this feature useful, especially when switching from a light-background website to a dark-background and vice versa. On the other hand, this feature only works well on machines that have fully installed drivers. Therefore, many people find a way to turn off this feature. If you are too, then a workaround can be found in the next section of this article.

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How to enable or disable Windows auto-dimming

Monitors (especially on laptops and tablets) can use an ambient light sensor to detect ambient light levels.

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The adaptive brightness feature in Windows monitors ambient light sensors to detect changes in ambient light and automatically adjusts screen brightness as needed to match ambient lighting conditions.

While adaptive brightness is useful to help save battery life, it can sometimes make your screen brightness level too dark.

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This guide will show you the following ways to enable or disable adaptive brightness in Windows 10:

Method 1: Use Settings

1. Open menu Start and click on the icon Settings (a cog wheel).

2. At the window Settingschoose System.

3. Select display from the menu on the left.

4. Toggle the switch at item Change brightness automatically when lighting changes luxurious Off.

5. Click the button Apply to save the changes.

If you don’t find the option Change brightness automatically when lighting changesit is likely that your computer does not have a light sensor and therefore does not have automatic brightness adjustment.

Note: If you are sure your computer has a light sensor, find and update the video card driver for your computer.

If you can’t find a video card driver compatible with Windows 10. For laptops, you will need to manually adjust the brightness in the ways described in the article with 6 ways to enable or disable the Windows 10 screen brightness adjustment feature. For desktop computers, you can use the hard buttons to adjust the brightness on the screen.

Method 2: Use Power Options

1. Open menu Start and click the icon Settings.

2. At the window Settingschoose System.

3. Click up Power & sleep from the menu on the left, then click on the link Additional power settings.

4. For Power Plan you are currently using (default is Balanced – the enabled option will be highlighted), click up Change plan settings.

5. Click Change advanced power settings.

6. Expand Item display > Enable adaptive brightness and make sure this setting is in Off.

7. Press the button OK to save the changes.

If button ON/OFF of option Adjust my screen brightness automatically blurred. The problem may come from your video card driver, or it is not installed or software provided by the manufacturer is not compatible with Windows 10.

In this case, you can open Device Manager and instead driver from the manufacturer to the basic Microsoft driver.

Method 3: Use Command Prompt

1. Open Command Prompt on Windows with the key combination Windows + CHEAP type cmd

2. If you want to enable the Adaptive Brightness feature when your device is Copy and paste following command and press Enter:

(Enable – On battery)

To enable this feature when the device is unplugged, copy and paste the following command and press Enter:

powercfg -setdcvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 1

(Disable – On battery)

To enable this feature when the device is unplugged, copy and paste the following command and press Enter:

powercfg -setacvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 1

(Enable – Plugged in)

To enable this feature when the device is plugged into a power source, copy and paste the following command and press Enter:

powercfg -setacvalueindex SCHEME_CURRENT 7516b95f-f776-4464-8c53-06167f40cc99 FBD9AA66-9553-4097-BA44-ED6E9D65EAB8 1

(Disable – Plugged in)

If you want to disable this feature when the device is plugged into a power source, copy and paste the following command and press Enter:

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

3. Copy and paste above cmd

Method 4: Use Command Prompt with Power Plan

Ex: Your computer will have 3 functions which are:

• Blanced
• High Performance
• Power Saver

1. Open Command Prompt.

2. Copy and paste commands powercfg /L go to Command Prompt and press Enter. Record the number GUIDES (for example: 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c) of the Power Plan you want to apply.

Power Plan (example: High Performance) with the sign * on the right is your current active Power Plan then note down the Power Plan GUID number.

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

(When using batteries)

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

Or:

(When charging)

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

Replace GUIDES in the above command using the actual GUID from step 2 above for the Power Plan you want to apply this to.

Example: To disable auto-brightness for GUIDES 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

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

powercfg -SetActive GUID

Replace GUIDES in the above command equals the same GUIDES from step 2 above for Power Plan that you want to apply.

For example:

powercfg -SetActive 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c

Method 5: Use Intel’s Graphics Control Panel

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 usage time when taking the laptop out. This feature can be the cause of turning off auto-brightness but the screen still automatically dims according to the website color.

To turn off this feature on machines using Intel graphics, do the following:

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

Method 6: Use AMD

If using graphics AMDyou follow these steps to turn off the Windows 10 auto-brightness feature:

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

Here are 6 ways that GhienCongListen teaches you how to turn on / off the Windows 10 screen brightness adjustment feature and optimize machine performance and screen brightness.

If you find the article interesting and useful, please share it with many people so that they can know this useful way. Good luck!

According to Tenforums.com