Screen brightness will not adjust.

[EdMono16]

My Screen brightness will not adjust.  I've used the Function keys and tried adjusting it in the settings.  I've had the laptop for about 6 months and it always worked fine. The problem arose over the last few days.  Any thoughts on how to fix this?

[asmita6658 · Accepted solution]

@EdMono16

Greetings!

Welcome to the HP Support Community. This is a great place to get support, find answers and tips to your technical queries. I have reviewed your post and I understand, there's an issue with the computer's brightness.

Don’t worry, I’m here to help you resolve this issue. To better assist you - 

1) What's the exact model name of the computer? Refer to this link for steps to find the product details. (Ensure not to share the serial number, email, phone number, etc.)

2) Were there any hardware or software changes made? 

While you respond to that, let's try these steps -

Step 1 Hard Reset -

1) Shutdown the computer.

2) Unplug all the Adapter and peripherals connected.

3) Remove the Battery.

Note - This step might not be applicable if you have a computer with built-in battery.

4) Press and hold down the power button for 15 to 20 seconds.

5) Plug-in the Adapter and put the Battery back into the computer.

6) Try to turn on the computer.

Step 2 Adjust the screen brightness -

1) Right click on the Start or Windows icon and open Control Panel.

2) Click on Hardware and Sound.

3) Click on Power Options.

4) Look for Screen Brightness located at the very bottom of the screen.

5) Move the slider to adjust the brightness.

Step 3 Re-install the display adapter - 

1) In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results.

2) In Device Manager, expand Display Adapter.

3) Right-click on the Display Adapter, and then select Uninstall device > Delete the driver software for this device check box > Uninstall.

4) Restart the computer.

Step 4 Windows Updates troubleshooter -

Click on this link to run Windows Updates troubleshooter.

Step 5 Windows Updates -

1) In the search box, type and open Windows Updates.

2) Check for updates.

3) If the updates are available, click on install and restart the computer.

Step 6 HP Support Assistant Updates -

1) In the search box, type and open HP Support Assistant.

2) Check for updates.

3) If the updates are available, click on install and restart the computer.

Step 7 System Restore -

1) Shutdown the computer.

2) Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears.

3) Press F11 once for System Recovery.

4) Choose the Keyboard Layout.

5) Click on Troubleshoot.

6) Go to Recovery Manager and click on System Restore.

7) Choose a Restore point or a Restore date when the computer was working fine.

😎 Click on OK to initialize the System Restore.

Step 8 System Recovery -

1) Shutdown the computer.

2) Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears.

3) Press F11 once for System Recovery.

4) Choose the Keyboard Layout.

5) Click on Troubleshoot.

6) Go to Recovery Manager and click on System Recovery.

Note : System Recovery will delete everything that you had saved or installed on the computer.

Hope this helps!

Let me know how that goes.

To thank us for our efforts to help you, click here to access your public post and Select - "Accept as solution" and click on the  "Thumbs up". 

Have a great day ahead 🙂

[EdMono16]

Holding the power button for 15 seconds for a hard reset fixed the problem.  I didn't know that was an option and now I do.  Thanks for the help!

[asmita6658]

@EdMono16

That's great 🙂 Happy to hear that. 

If you need further assistance feel free to reach out to us. 

Have a great day!