Brightness/Function Keys (F2/F3) no longer dim/brighten the screen

[bob_sagget]

The brightness/Function Keys (F2/F3) were working fine. They no longer dim/brighten the screen. The slider graphic appears on the internal laptop display once the function keys are pressed and I the mouse pointer maybe used to adjust the slider (in addition to the function keys) but the screen will not brighten or dim.

I tried the brightness slider in power options. It doesn't do anything

I review the Intel 4600 Display Adapter - It appears to be the recommended driver. 

I shut the laptop down, removed the AC, removed the battery, held the power button for 15 seconds, restarted, dim/bright function keys still not working.

All help is appreciated.

[The_Fossette · Accepted solution]

Hi @bob_sagget,

Welcome to the HP Forums!

Thank you for posting your query in this forum, it's a great place to find answers.

I reviewed your post and I understand that you are unable to adjust the brightness on your computer.

Don’t worry, I assure you I will try my best to get this sorted.

In order that I may provide you with an accurate solution, I will need a few more details.

• When was the last time the computer was working fine?
• Have you made any software or hardware changes on the computer?
• Have you performed any troubleshooting steps before posting?

Meanwhile, I recommend you update the bios and the chipset driver from the below link and check if it helps.

http://hp.care/2nikIQ9

Let me know how it goes and you have a great day!

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.

Take care.

Cheers!

[bob_sagget]

Shortly after I posted the problem I went into BIOS. I just looked and made no changes to BIOS. Upon reboot, the laptop was back to normal with the brightness control working properly. Thanks for the help.

[The_Fossette]

Hi @bob_sagget,

Perfect, I am really glad to hear that!

If any other questions arise, please feel free to write back to me.

Take care.

Cheers!