HP 840 G1 Brightness control

[Wijna]

I have a problem regarding a Elitebook 840 G1.

Recently I had to reinstall the windows on the notebook because of some issues.

I have installed all the drivers, however I could use the FN controls.

Found a fix by installing Hotkey support, but besides brightness control, everything works.

The brightness slider pops up, but nothing changes.

I tried to change the brightness from the control pannel, but it is missing.

Can anyone help me with this?

[Paul_Tikkanen]

Hi:

Did you install the Intel chipset installation utility and the applicable graphics driver?

Those missing drivers would be the only reason I can think of as to why you can't adjust the brightness.

[Wijna]

I've installed the graphic driver, not really sure I have installed the Intel chipset installation utility.

I just googled it and downloaded it from this link https://downloadcenter.intel.com/download/20019, but I get an error that the computer does not meet the minimum requirements.

Is there any other source for the correct file?

[Paul_Tikkanen · Accepted solution]

Hi:

That's not the driver you need.  That one is for much older platforms than yours.  The 2nd file down on the left side of the webpage is the auto install file.

https://downloadcenter.intel.com/download/20775/Intel-Chipset-Device-Software-INF-Update-Utility-?pr...

So, in the device manager, under the display adapters device manager category, if your notebook has an Intel graphics adapter, you see the Intel HD graphics adapter listed there?

And if it has the Intel/AMD switchable graphics you see both the Intel HD and AMD HD graphics adapters listed there?

If you see a Standard VGA Adapter listed there, that means the graphics driver is missing (or did not install correctly).

[Wijna]

Thank you so much.

Turns out, like you said, the graphics driver was missing.

Installing the file from the link you gave me solved it.

Now I could return the Notebook to the user

[Paul_Tikkanen]

You're very welcome.

[mrutah]

Hello, I have the same issue with brightness hotkey, but nothing helps.

[TheEagle2020]

Hello

I have the exactly same problem of this thread,

the link for the driver doesn`t work anymore , I`m asking if You can provide a new link for solve this problem

anyway my machine has the 2 AMD/Intel video card inside.

Thank You ver much for the help.

[Cheron-Z]

@TheEagle2020

Thank you for posting in this thread. Unfortunately based on when the last response was made, I have closed this thread to help keep comments current and up to date. We recommend starting a new thread for your issue by clicking  here To be more helpful with your post, you can add key information if you desire:
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