9 Replies Latest reply on Dec 7, 2015 2:55 PM by JohnRoss2113

    Dell XPS 14 (L421x) + Intel HD 4000 + Windows 8.1 - Brightness control problem

    dinikitin

      Hello,

      I've got the problem with brightness control on my laptop. Now it's only 100% brightness and all methods from this forum or other else doesn't resolved this issue.

       

       

      When I try to increase\decrease brightness (Fn+F4 \ Fn+F5) - it's changed only in Windows settings (see attached fig.1)

       

      1. Adaptive brightness in Windows Power settings is SWITCHED OFF.

      2. When I choose the Default Windows video driver - brightness control works perfect.

      3. With Windows 8 and old Intel driver - it was worked, but now it's Widows 8.1)

       

       

      So, I'm sure the issue with Intel HD 400 drivers. Please help me to resolve!

       

       

      Configuration:

      Dell XPS 14 (L421x)

      Intel HD 4000 driver 10.18.10.4061

      Windows 8.1 x64