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Windows 7: Can not set brightness on laptop

16 Mar 2010   #1

Can not set brightness on laptop

Laptop model:
HP 6735s

Windows version:
Ultimate x64

Can't move the screen brightness bar to a higher setting, just reverts itself back to lowest value;
Sometimes I succeed setting it to the maximal value but thats only if I try a lot and if I get lucky...very odd bug;
Screenr - @mekan_zec: Screen brightness fail.

Tried solutions:
Updating Windows
Updating BIOS (didnt succeed)

Anyone know a solution?

My System SpecsSystem Spec
16 Mar 2010   #2

Windows 7 Professional x64

Try a system files check. Open an elevated command prompt and enter sfc /scannow.

If that doesn't work, you may need to run a repair install.
My System SpecsSystem Spec
16 Mar 2010   #3

Windows 7 Professional 64-bit

Hi Munch,

If the Screen brightness slider isn't working properly, you may need to update your display drivers: Update a driver for hardware that isn't working properly. Or, your laptop may not support brightness adjustments. You can find this out by checking with your laptop manufacturer.

Microsoft Windows Outreach
My System SpecsSystem Spec

16 Mar 2010   #4


This may occur when you're using Battery power
My System SpecsSystem Spec
18 Mar 2010   #5


I sort of found a solution for it...I istalled the drivers for Fn keys, and I can adjust the brightness like that

My System SpecsSystem Spec
18 Mar 2010   #6


Quote   Quote: Originally Posted by Munch View Post
I sort of found a solution for it...I istalled the drivers for Fn keys, and I can adjust the brightness like that

Where did you find the drivers at?

I went to HP for mine after reading this and I cannot find ones specifically for FN keys. Is this the quick launch things?
My System SpecsSystem Spec
23 Jul 2015   #7
Leeds Tek

windows 7 pro

Hi the only way you will fix this error is to update the bios Here:

Drivers & Software - HP Support Center.

Work for me :) "NOTE" this link is for win 7 home prem 64bit .
If your OS is different just look for the same bios version but for your OS.
My System SpecsSystem Spec

 Can not set brightness on laptop

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