Can't change brightness on HP Envy

[JulianApostate]

I can't change the brightness on the computer. Nightlight settings don't work. 

I've tried: 

Updating the display drivers

Going into 'advanced power plan settings' and clicking 'display'. Brightness isn't even an OPTION there. 

Reinstalling the display drivers

Hard restart

Reinstalling Windows 10

What do I do? This is a relatively new laptop and I didn't notice this was a problem until I wanted to play a video game on it and realized I couldn't adjust the brightness at all. 

[praveenbv]

Hi@JulianApostate, Welcome to the HP Support Community!

Thank you for posting your query in this community, it's a great place to find answers.

I reviewed your post and I understand that you are unable to change the brightness on your computer.

Don’t worry, we will work together to resolve this issue and It’s a pleasure to assist you in this regard.

This issue could have occurred due to these reasons.

• Incorrect settings.
• Corrupt or outdated display driver.
• Check with BIOS is up to Date

Try the steps listed here and check if it helps:

Method 1: I suggest you download and install all the available Windows Updates including Optional Updates. Check if it helps.

If the issue persists, I suggest you uninstall and re-install the latest display driver from the computer.

Method 2:

Step 1:

Uninstall display driver.

Right-click on the Start Button and click on Device manager.

Double-click on Display Adapters to expand.

Right-click on the display adapter driver that is listed and select properties.

In the window opened, click on the drivers tab.

In the driver's tab, click on Uninstall option.

Step 2: 
 

Now reinstall the display driver from the below link.

http://hp.care/2nikIQ9

Hope this helps! Keep me posted.

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Have a great day!