Dell L521X Brightness controls work, then they don't.

Discussion in 'Mobile and Portable' started by donalgodon, Aug 6, 2015.

  1. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    I installed Windows 10 Pro on my L521X last night and the brightness controls worked UNTIL the system updated.

    I figured it was just a simple display driver issue, so I figured that the Windows 10 drivers from Dell would fix it.

    They didn't.

    I tried using the device manager to update the drivers for the video card and display, but they are already up to date.

    I tried to roll them back, but there's nothing to roll back to.

    Any way I can get back to a working state?

    TIA
     
  2. butinhi

    butinhi MDL Junior Member

    Apr 19, 2009
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    I am using l521x too. We must wait for update driver from dell or you can change bios settings. Secure boot - disable, legacy boot - Enable. You can change brightness. But your device not show Dell logo when boot.
     
  3. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    Thanks!

    I'll try that. Is there any other disadvantage to running that way?