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display contrast lowers when i unplug from charging

HP Recommended
pavillion 15ec 0100ax
Microsoft Windows 10 (64-bit)

i got this issue after the F.10 bios update once i had installed  whenever i unplug my laptop from charging my display would go dim and  the display looses its contrast which makes the display look too bad. plzz need help

HP Support Agent
HP Support Agent
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Message 2 of 2
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Thank you for posting on HP Support Community.


Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

  • 1. Go to the Start menu and open the Control Panel
  • 2. In the Control Panel, go to Power Options
  • 3. After the Power Options window pops up, click on Change Plan Settings to look at your current power plan
  • 4. Choose the option to Change advanced power settings located at the bottom of the window. This will open up the Advanced Power Options window
  • 5. Scroll down to the Display option. Expand it to show the Adaptive Brightness option
  • 6. Choose to turn on or turn off this feature for both when it’s on battery power and when the computer is plugged in
  • 7. Save the settings through clicking Apply and then OK
  • If you don’t find an Adaptive Display setting, your device might not have a built-in ambient light sensor.
  • 8. If you followed the instructions but the adaptive brightness didn’t change your auto-brightness setting, you’ll need to turn off the Sensor Monitoring service by pressing Win + R and typing services.msc. Then press Enter
  • 9. In the services window, click on the Sensor Monitoring Service which will lead to the service settings window
  • 10. Click Stop and select Disabled from the drop-down menu found next to the Startup type
  • 11. Save changes by clicking OK

Hope this helps! Keep me posted for further assistance.
Please click “
Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

I am an HP Employee

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