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‎05-31-2018 12:50 AM

HP Recommended
Product: HP ProBook 450 G5
Operating System: Microsoft Windows 10 (64-bit)

I have recently bought a HP ProBook 450 G5 and the F3 and F4 buttons are not working to alter the brightness, however, they still work in conjunction with alt, fn, etc. I can't seem to find anything in settings to fix this. Please help.

21 people had the same question
8 REPLIES 8

‎05-31-2018 01:04 AM

HP Recommended

Is there a key labelled "FN LOCK" ("function lock") button/key on the keyboard, to automatically add the "FN" modifier to the F3/F4 keys?

 

Personally, I use F3 to "search again" much more often than "FN-F3" to change the screen-brightness.

 

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‎05-31-2018 01:05 AM

HP Recommended

Installling the Hotkey support softpaq may resolve the issue.

https://support.hp.com/us-en/drivers/selfservice/swdetails/hp-probook-450-g5-notebook-pc/17047142/sw...

 

System Requirements

 Microsoft .NET Framework version 4.5 or later must be installed on the system before this update is run.


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‎05-31-2018 01:10 AM

HP Recommended

That article also cites:

 

Fixes:  Improves LAN/WLAN security on a system running Windows 10 with an Intel 8265 wireless LAN adapter installed.

 

I would never have expected this one SOFTPAQ to address both "hotkeys" and "network security". :Surprise:

 

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‎05-31-2018 01:17 AM

HP Recommended
@mdklassen wrote:

That article also cites:

 

Fixes:  Improves LAN/WLAN security on a system running Windows 10 with an Intel 8265 wireless LAN adapter installed.

 

I would never have expected this one SOFTPAQ to address both "hotkeys" and "network security". :Surprise:

 

Yep. Saw that. I also thought it was strange.


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‎05-31-2018 08:46 AM

HP Recommended

> Yep. Saw that. I also thought it was strange.

 

Very.

 

I would have expected that "hotkeys" refers to special buttons, labelled with icons such as 'envelope' or 'crescent moon' or 'globe', that are present on some "multi-media" keyboards, not to the F1-F12 keys.

 

But, of course, truth is stranger than fiction.

 

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‎05-31-2018 09:24 AM

HP Recommended

The brightness keys are auctually part of the set of special keys, according to the user manual for his notebook.

 

special_keys.png


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‎05-31-2018 10:19 AM

HP Recommended

Here's an image of a "multimedia" keyboard, with lots of extra buttons that are the "hotkeys":

 

 

 

Separately from the "hotkeys", notice that the F1-F12 keys each have "application" and "function" labelling.

 

On some computers, enter BIOS SETUP, to choose whether a simple key-press of one of the F-keys invokes the "application" mode (such as "search again" in the NOTEPAD application) or the "function" mode (such as "change brightness").

 

 

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‎08-31-2018 08:59 AM

HP Recommended

https://ftp.hp.com/pub/softpaq/sp88001-88500/sp88033.exe

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