The HP Pavilion 15 AMD has a backlit keyboard controlled through a function key and HP software. When the backlight stops working on Windows 11, it is usually a software setting, driver issue, or HP service not running. This guide covers every fix.

Why HP Pavilion 15 AMD Keyboard Backlight Is Not Working
Fn Toggle Turned Off
The keyboard backlight is toggled using Fn+F5 (or the backlight key on your model). This toggle persists across reboots. If it was accidentally turned off, the backlight stays off until you press Fn+F5 to cycle it back on. Press it once for low brightness, again for high, and once more to turn off.
HP System Event Utility Not Running
HP Pavilion keyboard backlight depends on HP background services. If HP System Event Utility or HP Hotkey Service is stopped or crashed, the Fn key mapping stops responding. Signs of this include:
- Fn+F5 presses do nothing with no visible change
- Other Fn shortcuts also stop working simultaneously
- Issue clears after restarting HP services or rebooting
- HP Support Assistant shows HP System Event Utility as outdated
AMD Driver Update Resetting Keyboard Configuration
On HP Pavilion 15 AMD models, AMD Radeon driver updates can reset keyboard backlight settings stored by the HP embedded controller. After an AMD update the backlight may revert to off even if it was on before. Reinstalling the HP keyboard driver restores the backlight control.

How to Fix HP Pavilion 15 AMD Keyboard Backlight Not Working
Step 1: Toggle Backlight and Update HP Support Assistant
- Press Fn+F5 to cycle keyboard backlight through off, low, and high brightness.
- If no response, open HP Support Assistant and install all available updates.
- Restart after updates complete and test Fn+F5 again.
Step 2: Restart HP System Event Utility
Press Windows key + R and type services.msc. Find HP System Event Utility and HP Hotkey Service. Right-click each and select Restart (or Start if stopped). After restarting the services, test the Fn+F5 backlight toggle.
Step 3: Reinstall HP Keyboard Driver
Visit the HP support website and search for your Pavilion 15 AMD model. Download the HP Keyboard Driver or HP Hotkey Driver for Windows 11. Uninstall the existing driver from Device Manager under Keyboards, restart, and install the HP driver package. Restart again and test Fn+F5.
I updated my AMD Radeon driver and the keyboard backlight disappeared. Reinstalling the HP Hotkey driver from HP support fixed it. I had no idea the two were connected. — Carlos B., HP Pavilion 15 AMD user

Frequently Asked Questions
How many backlight brightness levels does HP Pavilion 15 AMD keyboard have?
Most models offer two brightness levels plus off, cycled with Fn+F5: off, low brightness, high brightness, then back to off. Some models offer only one level plus off. Check the HP product page for your specific unit to confirm specifications.
Does HP Pavilion 15 AMD keyboard backlight turn off automatically?
Yes. The backlight dims after keyboard inactivity to save battery, controlled by HP System Event Utility. There is no direct timer setting in standard HP software. Keeping the laptop plugged in may allow the backlight to stay on longer.
My backlight works but only on one side. What is wrong?
Uneven coverage usually indicates a disconnected backlight strip — a hardware problem. Driver fixes will not help here. Contact HP support or an authorized repair center for a hardware inspection.
Can I control backlight brightness from software?
HP does not provide a dedicated backlight control app for the Pavilion 15 AMD. Control is via Fn+F5 hardware toggle only. Stick to the official HP Hotkey driver for reliable operation.
Conclusion
HP Pavilion 15 AMD keyboard backlight not working on Windows 11 is caused by the Fn toggle being off, HP services not running, or a driver reset after an AMD update. Press Fn+F5 first to toggle backlight, restart HP services, and reinstall the HP Hotkey driver from HP support. These steps resolve backlight issues in most cases.
Ryan holds a Computer Science degree and has over 20 years of hands-on experience with PC hardware, software, and driver troubleshooting. He is the author behind softwaredriverdownload.com, where he helps everyday users fix driver issues quickly and accurately.
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