Windows 10: After a Windows update on my one year old Dell laptop the brightness slider has disappeared...

Discus and support After a Windows update on my one year old Dell laptop the brightness slider has disappeared... in Windows 10 Gaming to solve the problem; After a Windows update on my one year old Dell laptop the brightness slider has disappeared and the keyboard keys for brightness don't work either. Any... Discussion in 'Windows 10 Gaming' started by TimHine1, Jan 28, 2023.

  1. TimHine1 Win User

    After a Windows update on my one year old Dell laptop the brightness slider has disappeared...


    After a Windows update on my one year old Dell laptop the brightness slider has disappeared and the keyboard keys for brightness don't work either. Any suggestions?

    :)
     
    TimHine1, Jan 28, 2023
    #1

  2. Brightness slider disappeared

    After the last Windows Update 1909, the brightness slider disappeared. I can't adjust the brightness!
     
    김재성., Jan 28, 2023
    #2
  3. dalchina Win User
    dalchina, Jan 28, 2023
    #3
  4. daniel1 Win User

    After a Windows update on my one year old Dell laptop the brightness slider has disappeared...

    No options to turn OFF adaptive brightness / no power slider

    Hello everyone!

    I'm stuck with a very weird problem I can't solve. I'm not a full-on reading binary style tech person but I'm using computers (and fix their problems) since forever and never ran against a wall like this:

    My Dell M3800 laptop turned on the adaptive brightness feature again that I disabled almost three years ago. Now it's pretty much useless in dim environments because the screen gets so dark. Also every option windows normally has to switch it off is gone. Not greyed out, it's just not there (Both in the legacy power options and in te new UI).

    Around the same time it happend that windows decided to get rid of the old power profiles and instead only show the "balanced" one that comes with the power options slider when you click on the battery icon in the tray. I had that briefly and then the slider disappeard along with the option of turning adaptive brightness OFF.

    This makes me MAD.
    • I deleted and restored the default power plans in several ways
    • I changed all (all I found, though) corresponding registry entries to disable adaptive brightness
    • I checked the registry for the the option to show the switching-option being ENABLED
    • I even stopped the windows service for the ambient light sensor

    No change. Any Wizards around? *Shock

    Daniel
     
    daniel1, Jan 28, 2023
    #4
Thema:

After a Windows update on my one year old Dell laptop the brightness slider has disappeared...

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