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    VPCZ1 screen brightness not work

    Discussion in 'VAIO / Sony' started by ram108, Apr 16, 2018.

  1. ram108

    ram108 Newbie

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    Hi! I have clean install of Windows 10 Spring Creators Update 1803 and everything work perfect except Screen brightness control. It does not work at all. Does anyone have any idea how to fix it?
     
    ram108, Apr 16, 2018
    #1
  2. ram108

    ram108 Newbie

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    STAMINA MODE, HACKED BIOS.

    I made a copy of the previous driver (from old Windows) and installed it on a new system, but the brightness control still does not work. It seems that problem is not with the driver but with OS itself.
     
    ram108, Apr 17, 2018
    #2
  3. ram108

    ram108 Newbie

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    This helped me:

    ======================
    1) Open the registry editor (START -> regedit).
    2) Search for FeatureTestControl.
    3) Change the value from f800 to fb60.
    4) Reboot
    ======================
     
    ram108, Apr 17, 2018
    #3
  4. ziele

    ziele Notebook Enthusiast

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    Thx, it works for me :)
     
    ziele, May 8, 2018
    #4
  5. galaxyge

    galaxyge Notebook Consultant

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    this hadn't been fixed for a couple of years.. will try!
     
    galaxyge, May 9, 2018
    #5