How to fix Brightness Control not working on Windows 10

If the brightness control is not working on your Windows 10 PC, there are several potential solutions you can try to resolve the issue.

Here are some steps you can follow:

1. Check for Display Drivers Update:

  • Outdated or incompatible display drivers can cause brightness control issues. Update your graphics drivers to the latest version:
    1. Right-click on the Start button and select “Device Manager.”
    2. Expand the “Display adapters” category.
    3. Right-click on your display adapter and select “Update driver.”
    4. Choose the option to search for updated driver software automatically.

2. Roll Back Display Drivers:

  • If updating the drivers doesn’t resolve the issue, you can try rolling back to the previous driver:
    1. Open Device Manager and go to “Display adapters.”
    2. Right-click on your display adapter and select “Properties.”
    3. Go to the “Driver” tab and click on “Roll Back Driver” if the option is available.

3. Adjust Brightness in Power Options:

  • Some laptops have power plans that affect brightness. Adjust the brightness settings in your power plan:
    1. Right-click on the battery icon in the taskbar and select “Power Options.”
    2. Click on “Change plan settings” for your active power plan.
    3. Adjust the brightness settings under “Adjust plan brightness.”

4. Use Keyboard Shortcuts:

  • Many laptops have dedicated function keys for adjusting brightness (e.g., Fn + F5/F6). Try using these shortcuts to adjust brightness.

5. Disable Adaptive Brightness:

  • Windows 10 includes a feature called Adaptive Brightness, which automatically adjusts brightness based on the ambient light. Disabling this feature might help:
    1. Open “Power Options” from the Control Panel.
    2. Click on “Change plan settings” for your active power plan.
    3. Click on “Change advanced power settings.”
    4. Expand the “Display” category and disable “Enable adaptive brightness” under both “On battery” and “Plugged in.”

6. Check for Windows Updates:

  • Make sure your Windows operating system is up to date. Microsoft releases updates that can address various issues, including problems with hardware.
    1. Open “Settings” and go to “Update & Security.”
    2. Click on “Check for updates” and install any available updates.

7. Reinstall Display Drivers:

  • Uninstalling and reinstalling the display drivers can sometimes resolve issues:
    1. Open Device Manager, right-click on your display adapter, and select “Uninstall device.”
    2. Restart your computer, and Windows will automatically reinstall the drivers.

8. Use the Display Troubleshooter:

  • Windows 10 includes a built-in troubleshooter for display issues:
    1. Open “Settings” and go to “Update & Security.”
    2. Click on “Troubleshoot” in the left pane.
    3. Select “Additional troubleshooters” and run the “Display” troubleshooter.

9. Check for Third-Party Software Interference:

  • Some third-party software or utilities may interfere with brightness controls. Disable or uninstall any such software temporarily to check if it’s causing the issue.

10. Perform a System Restore:

  • If the issue started recently, consider using System Restore to revert your system to a previous state where the brightness controls were working.

If none of the above solutions resolve the brightness control issue, there might be a hardware problem, and it’s advisable to contact your device manufacturer’s support or seek assistance from a professional technician.

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