HP Pavilion 15 notebook pc Brightness problem

[Gauvry]

HI everyone, 
I'm having an annoying problem concerning my brightness on my Pavilion 15 notebook pc..
When i  press the the butoon to decrease it, it  increases instead ....... when i press the buton to increase it , it decreases ..

When its on economy mode, the brightness  increases instead of decreasing 
Sometimes when im using my laptop, the brightness randomly changes.

Is there a fixed solution to this problem??
Thanks

[Chat_Dave_UK]

Hi,

Welcome to the HP Support Forum.

Do you have the exact model number for your laptop?

Please  watch a short YouTube video  or read the below to get the best responses for your question.

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1.  A brief, descriptive title and issue summary:

Include the product name and a short description of the issue in the title (Example: "PhotoSmart Printer 2610 Paper Jam").

2. A detailed message with the following information:

     Key Product information:

• Printer Notebook or Desktop Product Name and Number: This information can be found on the Service Tag Label affixed to the product and looks something like this:

If you need more help finding your model number, click here.

• Operating System (including service pack revision): For example, Windows 7 Professional 64-bit version.
• Error messages: Printer or computer screen errors such as, “Low disc space” error. 
• Recent hardware or software changes made to the system: For example, did you recently add a printer or USB drive or install new software.

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[Gauvry]

HP Pavilion 15 notebook pc 
numero de serie :   [Personal Information Removed]
Neméro de produit :  K6X81EA

that is my pc details .....
thnx for replying

[gkline]

Were you using your laptop for a long time without this problem?  Can you recall what might have been done around the time this issue started happening?  Did you perform any software updated from HP or Microsoft?

[Chat_Dave_UK · Accepted solution]

Hi,

This is a common issue for Laptop with Intel N3540 processor in Windows 10.

Here is a solution posted by GM_823:

Follow this

1. Window + X

2. Go to Device Manager

3. Drop down Display Adapters

4. Right click on your display adapter (mine's Intel(R) HD Graphics)

5. Click on Disable. Screen will blackout for a few seconds.

6. Once it returns, right click again and click Enable.

7. Try your brightness keys.

If the issue remains after restart, you may consider to turn off the Fast boot option

To turn off Fast boot:

1. Open Power Options in Control Panel

2. Choose " Choose what the power buttons do"

3. Click on the  "Change settings that are currently unavailable"

4. Under shutdown settings untick Fast Boot.

5. Restart Windows

Hope this help.

[Gauvry]

Hi  Chat_Dave_UK 
Thanks a lot for your precious help 
My pc is working fine now 

Added to solution    😄