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- HP Community
- Notebooks
- Notebook Video, Display and Touch
- Brightness Keys i.e. f2 and f3 not working

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11-17-2024 04:53 AM
Can not adjust screen brightness using the f2 and f3 keys. The system display only shows volume control and no brightness slider. The keys used t work, but no longer work for some reason.
11-19-2024 07:28 AM
Hi @JamesNel1,
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
The issue with the F2 and F3 keys not adjusting screen brightness and the missing brightness slider in your HP Pavilion Aero 13.3-inch laptop may be due to software or driver-related issues. Here's a step-by-step guide to troubleshoot and resolve this problem.
Check for Windows Updates
- Go to Settings > Update & Security > Windows Update.
- Click Check for Updates and install any pending updates.
- Restart your laptop after updating.
Reinstall or Update Graphics Drivers
- Open Device Manager:
- Right-click on the Start button and select Device Manager.
- Update Display Adapter Driver:
- Expand Display adapters.
- Right-click on your graphics card (e.g., AMD, Intel) and choose Update driver.
- Select Search automatically for drivers.
- Reinstall the Driver (if needed):
- Right-click on the display adapter and select Uninstall device.
- Restart your laptop, and Windows will reinstall the driver automatically.
- Alternatively, download the latest driver from the HP Support website or the manufacturer's website (e.g., AMD or Intel).
Re-enable Generic PnP Monitor
- In Device Manager:
- Expand Monitors.
- Right-click on Generic PnP Monitor and ensure it is enabled.
- If it is disabled, select Enable device.
Restore Hotkey Functionality
- Install/Update HP Hotkey Support:
- Visit the HP Support website.
- Search for your laptop model and download the latest Hotkey Support Software or any relevant keyboard driver updates.
- Restart your laptop after installation.
Reset Power Plan Settings
- Go to Control Panel > Hardware and Sound > Power Options.
- Click Change plan settings for your selected power plan.
- Choose Restore default settings for this plan and confirm.
Check for BIOS Updates
- Access HP Support and search for BIOS updates for your laptop model.
- Follow the instructions to update the BIOS (ensure your laptop is connected to power during this process).
Verify Windows Display Settings
- Go to Settings > System > Display.
- Ensure the Brightness slider is visible. If not:
- Check if your display driver needs updating (refer to Step 2).
- If you are using external monitors, ensure they support brightness adjustments.
HP Support Community Moderator
11-19-2024 07:28 AM
Test Brightness Adjustment in Safe Mode
- Restart your laptop in Safe Mode:
- Press Windows + R, type msconfig, and go to the Boot tab. Check Safe boot and restart.
- Test the brightness keys in Safe Mode. If they work, the issue could be caused by third-party software. Consider uninstalling any recently added apps.
If the Issue Persists
- Perform a System Restore to a point when the brightness keys worked.
- Go to Control Panel > Recovery > Open System Restore.
I hope this helps.
Take care and have a good day.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
Alden4
HP Support
HP Support Community Moderator