Brightness Control Slider Not Working Issue in Windows 10 Fix

Usually, the brightness adjustment is done in windows settings or using function keys present on the keyboard. But if the brightness control slider is not working then it might be due to outdated display drivers or there might be some windows updates that need to be installed, hardware issues, or it can be other issues as well. Let us try and solve this issue. In this article, we have a few methods that you can try to get rid of the brightness control not working issue. Let us start!

The normal way to control the screen brightness is like below

Use The  Windows Settings

Step 1 – Open the windows settings using Windows + I keys together

Step 2 – Click on the system

 

System

 

Step 3 – On the display page, under brightness and color there is a slider. If you drag the slider on the right the brightness increases, if you drag the slider on the left the brightness decreases.

 

Slider Control

 

Use The Function keys From The Keyboard To Adjust The Brightness

In the keyboard you can see the function keys at the top row. It also has keys from which the brightness can be increased or decreased. The keys varies from each manufacturer. For example, my laptop has fn + f9 (press fn key along with f9 key) and  fn + f10 (press fn key along with f10 key) keys to adjust the brightness.

 

But if this brightness control is not working then how to change the brightness? Try out the below methods to achieve it.

 

Method 1: Use Windows Quick Settings To Change The Brightness

 

Step 1 – Open the quick settings, to do so hold Windows + A keys together

Step 2 – On the right side you will find various option. At the bottom you will have the brightness slider drag it to make the adjustments.

 

Slider

 

If you cannot find the slider or if it is inactive then update your adapter drivers as mentioned below.

 

Method 2: Update The Display Adapter Drivers

 


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Step 1 – Open the run prompt using Windows + R keys together

Step 2 – Type devmgmt.msc in the run prompt and hit enter. This will open the device manager window

 


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Device

 

Step 3 – Expand the display adapter option by clicking on the arrow mark beside it

Step 4 – Right click on the core adapter, here I use Intel. Then click on update driver

 

Display

 

Step 5 – In the opened window choose search automatically for drivers. Select the driver listed and update it

 

Select Drivers

 

Step 6 – If you get the best drivers already installed, then go back and click on browse my computer for drivers

 

Browse Drivers

 

Step 7 – Select let me pick from a list of available drivers on my computer

 

Pick Drivers

 

Step 8 – In the model section choose the required driver then click on next

 

Intel

 

Step 9 – It will take a few minutes to update the driver, stay connected to internet and do not interrupt the  process

Step 10 – Once updated restart your system and check if the issue is solved.

 

Method 3: Roll back To The Previously Installed Driver

 

Step 1 – Open the run prompt using Windows + R keys together

Step 2 – Type devmgmt.msc in the run prompt and hit enter. This will open the device manager window

 

Device

 

Step 3 – Expand the display adapter option by clicking on the arrow mark beside it

Step 4 – Right click on the core adapter, here I use Intel. Then click on properties

 

Properties

 

Step 5 – Go to the driver tab

 

Driver

 

Step 6 – Then click on roll back driver button to go back to the previous driver installed. Then check if the problem is resolved.

Note: If the roll back driver button is disabled that means you do not have previous driver to go back.

 

Roll Back

 

Method 4: Scan For Hardware Changes

 

Step 1 – Open the run prompt using Windows + R keys together

Step 2 – Type devmgmt.msc in the run prompt and hit enter. This will open the device manager window

 

Device

 

Step 3 – Right click on your computer name and then click on scan for hardware changes

 

Scan

 

Step 4 – If there are any changes made, it will be set back to default settings

Step 5 – Restart the system and then check if the issue is solved and works correctly

 

Method 5: Check For Windows Updates

 

Step 1 – Open the windows settings using Windows + I keys together

Step 2 – Click on update & security

 

Update Security

 

Step 3 – In the windows update page, on the right side, click on check for updates button

 

Check Updates

 

Step 4 – If there are any updates available then it will be installed. Then see if the brightness slider works.

 

Method 6: Change The Brightness Using PowerShell Command

 


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Step 1 – Open the PowerShell. To do that press Windows + X keys together, from the appeared list click on Windows PowerShell (Admin)

 

Powershell

 

Step 2 – A user account control window will appear, click on yes

Step 3 – To set the brightness level, copy and paste the following command in the PowerShell window then hit enter

(Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,70)

 

Powershell Command

 

You can set the range in percentage from 0 to 100%. Here in the above command I have set the brightness to 70%

 

Method 7: Install The Intel HD Graphics Driver

 

Step 1 – Open the browser (any browser that you use). In the search bar type intel display driver for windows 10 ( I am using a windows 10 machine) and hit enter

Step 2 – Click on Intel HD Graphics Driver for Windows 10 link

Step 3 – On the right side, under Automatic Driver and Software Updates click on get started button

 

Get Started

 

Step 4 – In the support page, click on download now button that is for Intel Driver & Support Assistant (Intel DSA)

 

Download Now

 

Step 5 – Once downloaded, double click on its downloaded .exe file and click on run

Step 6 – Agree the license terms by clicking on the checkbox below and then click on install button. Once installed it will automatically update the driver and the issue will be fixed.

That’s it! I hope the above provided information is useful and easy to understand. Let us know which method worked for you. Thank you and happy reading!!