Windows 10: Brightness control on samsung galaxy book3 laptop with FN buttons

Hello! My laptop is samsung galaxy book3 NP754XFG btw in settings -> about system wrote that it is 750XFG, what's the difference and why? on windows 11. As I remember my problem began after win update to 24H2. So the problem itself is that when i press FN buttons to control screen brightness it works pretty strange. Brightness not but an icon of it "sun" is moving. I would pin screenshots with difference. Thanks for help! Anyway i available to control it in a main menu 3rd screenshot

:)

 

Ultimate Connected Experiences Between Samsung Galaxy Devices

Source: [User Guide] Expanding the Galaxy Ecosystem: Ultimate Connected Experiences Between Galaxy Devices – Samsung Global Newsroom

 

Brightness control option using the keys "fn + f9" and "fn + f10 are not working on Windows 10.

Original Title: Windows 10 brightness issue

I have an HP ProBook 445 G2 Notebook PC that came with Windows 8.1 Enterprise. I recently did a clean installation of Windows 10 Home. My keyboard had a brightness control option using the keys "fn + f9" and "fn + f10". These brightness control hotkeys stopped
working after I installed Windows 10, although other hotkeys like the one for volume control still work. The brightness button in the action center cycles only through steps pf 25%, which is sometimes inconvenient. How can I fix this?

 

Can not control the laptop brightness

Hi Dinh,

Thank you for posting your query in Microsoft Community.

I understand the inconvenience you are facing currently.

I would appreciate if you can provide us the following information to help us understand the issue better.

What happens when you try to change the screen's brightness?

For a majority of laptops, there isn't a control for setting the contrast. However, you can set the brightness of many laptops by pressing and holding the Fn key, and then pressing a function key to decrease brightness
or increase brightness.

I suggest you to uninstall the display driver from your computer and then install in Compatibility mode.

To uninstall the driver follow the steps given below.

• 
  Press Windows key + X and select
  Device Manager.
  
• 
  Search for Display Adapter
  and expand it.
  
• 
  Right click on the Display Adapter
  and select Uninstall.
  
• 
  Do not restart your computer.
  

Once you have successfully uninstalled the driver, please install the driver in compatibility mode following the steps given below.

Make older programs compatible with this version of Windows

Make older apps or programs compatible with Windows - Microsoft Support

(Applies to Windows 10)

Hope the information helps. Please let us know if the issue persist and we will be happy to assist you further.