4540s brightness function key is not working

[Narendra_Shakya]

In my hp probook 4540s brightness function key is not working either i put hp hotkey or hp quick lunch

pleace tell me what can i do to work my brightness function key

[Huffer]

The brightness hotkey requires the "real" video driver be installed, and not just the "default" Windows driver. What Windows version are you using?

[Narendra_Shakya]

i have two laptops HP 4540s and HP2000.

in both the laptops all other hotkeys are working but only the brightness control key is not working.

i am using windows8 professional 64 bit.

i downloaded the driver from hp website for HP 2000:

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=ch&prodNameId=5368063&...

but even after downloading the graphic and touch pad software/driver from the above website the brightness key is not working. Same  problem in both the laptops.

Pls send me the link from where the driver is to be downloaded and the step by step process to finish it.

Looking forward to receive from u at the earliest.

Regards,

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@Huffer wrote:

The brightness hotkey requires the "real" video driver be installed, and not just the "default" Windows driver. What Windows version are you using?

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[qureshia]

I have a similar issue with my probook 4540s. brightness is not incresing. Appritiate for help

[ArthurDentons]

HI everybody! I encountered the same problem today but I've found the solution, or at least a solution that works for me: you just have to install the Hot Key Utility for Windows 8 32/64 BIT that you can find here http://www2.sagernotebook.com/pages/notebooks/download.cfm?ProductType=9150

Hope this helps!!!:catvery-happy:

[mohamed_oransa]

thanks hp

[mohamed_oransa]

key fn not working .. f2 f3 f4 f5 f6 not working

[koreantwg]

Thanks Arthur.  Your link no longer works, but installing the Hot Key Support driver solved my problem.

Here is the currently active link:

http://h20564.www2.hp.com/hpsc/swd/public/detail?swItemId=ob_104998_1&swEnvOid=4058#tab1

Thanks!