When I press F2 or F3 I can't increase or decrease my brightness On my display

Question

I'm having 10 issue for a little while now and I don't know what to do make my screen become brighter or decrease my screen so I appreciate any type of a life from anyone as much as possible and this is the Windows 11 My Home HP Thank you

Answer 1

hi sims, welcome in community

first step, check that in your system there is all apps from HP requested, maybe there is a specific app for FN key

then follow carefully here

https://support.hp.com/us-en/document/ish_5878386-5878448-16

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let me know

Elvis

Answer 2

If you are unable to adjust the brightness of your display using the F2 and F3 keys, there are several steps you can take to troubleshoot the issue:

1. Check BIOS Settings: Ensure that your BIOS settings allow for automatic brightness control. Look for settings related to ACPI (Advanced Configuration and Power Interface) that might enable or disable automatic LCD brightness adjustments.
2. Update Display Drivers: Make sure your display drivers are up to date. You can do this through the Device Manager in Windows. Right-click on the Start button, select Device Manager, expand the Display adapters section, right-click on your display device, and select Update driver.
3. Windows Settings: Go to Settings > System > Display. Check if the brightness slider is available and functional. If it's grayed out, it may indicate a driver issue.
4. Function Key Behavior: Some laptops require you to press the Fn key along with the F2 or F3 keys to adjust brightness. Ensure that you are using the correct key combination.
5. Adaptive Brightness Settings: Check if adaptive brightness is enabled. You can find this under Settings > System > Display > Brightness and color. Look for an option related to "Change brightness automatically when lighting changes" and toggle it.
6. Windows Updates: Ensure that your Windows 11 is fully updated, as updates can fix bugs related to hardware functionality.

If these steps do not resolve the issue, consider checking the HP support website for specific guidance related to your model.

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References:

• Supporting brightness controls on integrated display panels
• Adaptive brightness