The brightness controls on my laptop wont work after an upgrade to Windows 10.

In addition, the brightness slider in the Power Options control panel is also missing.

I have ran and installed the drivers from Dell, using the Dell Detect app, but still nothing.

Any ideas?

1 Answer 1


Try this command in CMD to check if there any power option controls there or not?

powercfg /l

enter image description here

If it shows up then you can enable it via a registry edit.

  • I got the exact same screen when I ran powercfg /l
    – enorl76
    Commented Oct 8, 2015 at 19:56

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