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Honor Student
Narendra_Shakya
Posts: 2
Member Since: ‎07-24-2013
Message 1 of 7 (5,665 Views)

4540s brightness function key is not working

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

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Huffer
Posts: 11,664
Member Since: ‎11-12-2008
Message 2 of 7 (5,652 Views)

Re: 4540s brightness function key is not working

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

Honor Student
Narendra_Shakya
Posts: 2
Member Since: ‎07-24-2013
Message 3 of 7 (5,645 Views)

Re: 4540s brightness function key is not working

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,


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?


 

Student
qureshia
Posts: 1
Member Since: ‎02-26-2014
Message 4 of 7 (3,502 Views)

Re: 4540s brightness function key is not working

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

Student
ArthurDentons
Posts: 1
Member Since: ‎05-22-2014
Message 5 of 7 (2,221 Views)

Re: 4540s brightness function key is not working

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:

Honor Student
mohamed_oransa
Posts: 2
Member Since: ‎06-13-2014
Message 6 of 7 (1,934 Views)

Re: 4540s brightness function key is not working

thanks hp

Honor Student
mohamed_oransa
Posts: 2
Member Since: ‎06-13-2014
Message 7 of 7 (1,932 Views)

Re: 4540s brightness function key is not working

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

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