On a computer, you would love the flexibility of increasing or reducing display brightness as it suits you. However, there are some rare cases when Windows users complain that the brightness is not working in Windows 11.

There are a few factors that may cause this problem. We have explored all of them, and in this guide, we introduce you to the most effective fixes.

Why is Brightness Not Working in Windows 11?

There are a few reasons why the brightness is not working on your Windows 11 device. The top ones include:

• Misconfigured power settings
• Outdated drivers.
• Corrupted system files.
• Hardware damage

You may try the solutions below to fix it.

What Do I Do When Brightness is Not Working on Windows 11?

1. Adjust Brightness With a Different Method

On Windows 11, there are several ways to adjust the brightness. So, if one does not work, you should try a different method. One of the easiest ways is using the function keys with the brightness logo. If they don’t work, try any of the following.

Access Brightness from Action Center

1. Click the Volume button on the Taskbar.

2. Use the Brightness slider to increase or reduce brightness.

Access Brightness from Settings

1. Press Windows + I to open the Settings app.

2. Click the System menu on the left, then click Display on the right.

3. Use the Brightness slider to increase or reduce brightness.

2. Disable Auto-Brightness

When you disable Auto brightness, you remove an initial control barrier and give yourself access to changing the brightness manually.

1. Press Windows + I to open the Settings app.

2. Click the System menu on the left, then click Display on the right.

3. Click on Brightness, and under it, set Change brightness based on content to Off.

3. Reinstall Your Display Driver

Display drivers control several display settings. This may include the brightness display. You should update this driver to fix the problem when it is outdated. However, it would be best to consider reinstalling it altogether to correct potential corruption problems.

1. Right-click the Start menu and click Device Manager.

2. Expand Monitors, right-click your display driver, and click Uninstall device.

3. Confirm your choice and restart your computer.

4. Relaunch the Device Manager and click the icon for Scan for hardware changes.

4. Update Your Graphics Card

Graphics card controls how graphical components are rendered on your computer. The brightness slider is one such component. If this driver is outdated, you may have irregularity using the brightness slider. Update your graphics card.

5. Run the SFC Scan

System file corruption is a common reason for the brightness feature not working in Windows 11. This is because once the essential brightness files are corrupted, your computer will no longer understand the signals passed. You may run the SFC scan to fix the file corruption.

1. Press Windows + R to open your Run dialog, then type cmd and hit the Enter key.

2. In the computer, input the command below, then follow the on-screen instructions to complete the scan.

sfc /scannow

3. Restart your computer.

6. Charge the Computer

While charging the computer feels very basic, it is sometimes the only effective fix. Your computer may enter an automatic power saver mode at a certain battery level. If this is the case, connect your charger, and the problem will be resolved.

7. Update Power Plan

When the brightness is not working in Windows 11, updating the power plan may fix it. Updating your power plan simply means using a different power plan. This will work if specific power settings locked within a plan override manual brightness adjustments;

1. Press Window + I to open the Settings app.

2. Click System on the right pane and Power & battery on the right.

3. Under Power Mode, choose a different plan.

8. Update Windows

Windows updates are important in fixing bugs on your computer. The brightness not working in Windows 11 may be triggered by a bug that the update can fix.

1. Press Windows + I to launch Settings.

2. Click Windows Update on the bottom left, then click Check for updates on the right.

3. Download and install any updates.

9. Restore Your Computer

A system restore takes your computer to a different point in its history before the brightness problem started. You may use the restore utility to clear the current bugs triggering the problem.

1. Type restore on Windows Search and select the Recovery option.

2. Click the Open System Restore option on the Control Panel.

3. Select Choose a different restore point and click the Next button.

4. Select a different restore point from the available options and click Next.

5. Lastly, click the Finish button. The process will begin, and your computer may restart as the restore runs.

Control Brightness on Windows 11

If you have read this far, you should have perfect control of brightness on your computer. It should work whether you use the brightness function keys, the action center, or the Settings app.

Please let us know what solutions were effective in the comment section below.

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