Post new question
Honor Student
Posts: 2
Member Since: ‎03-31-2017
Message 1 of 4 (591 Views)

Screen light function keys


How do I use a shortcut to change the light intensity on my screen? 

I just got a HP EliteBook 840 G3 14" Smiley Happy

For volume/sound its fn+f8/f9 but i cant seem to make that work for the light? (f5/f6) Is there a setting somewhere?? 

Idealy I would love to not have to press function first. Simply have the settings as a mac - straight pressing f8/f9 you are adjusting the volume and pressing f5/f6 you are adjusting the light strenght on your screen,, Is it possible, is there settings for this? 

Thank you for any advice Smiley Happy)



0 Kudos
Associate Dean
Posts: 5,543
Member Since: ‎02-03-2014
Message 2 of 4 (429 Views)

Re: Screen light function keys

Hello Mini404470


If you are using Windows 10 and the Screen Brightness buttons are not functioning, it might be a driver update needed.

HP Hotkey Support


As for disabling the Fn key, that would be done in the Bios if its available.

I don't have an Elitebook so Im shooting in the dark here.

According to the Bios Manual, it might be located under Advanced>System Options.

In Consumer type notebooks, its under System Configuration>Action keys.

If its not there, your setup might not have the option to turn that key off.

Honor Student
Posts: 2
Member Since: ‎03-31-2017
Message 3 of 4 (355 Views)

Re: Screen light function keys

OK, thank you very much for your reply Smiley Happy 

Top Student
Posts: 5
Member Since: ‎06-21-2014
Message 4 of 4 (281 Views)

Re: Screen light function keys

Hi Mini, congrats with your laptop, hope it is working well.

I have to ask, because my 840 G3 has problems with brightness regulation, is your one working correctly?

Which screen do you have? (The basic one, full hd, or QHD IPS display?) 

The brightness sometimes  suddenly changes on my one. Does your laptop ever do this?


† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation