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Cant change screen brightness Dell
#1
For some reason, the brightness keys on my laptop stop working when I activate the fan controls. If I close the fan control window, everything returns to normal. All the other keys work (volume, mute, dual screen, etc), only the brightness keys are affected. Note that I am able to change the brightness using the Windows action center brightness button. 

Using a Dell G3 3579. Windows 10 Home.

Thank you

EDIT: Restarted my laptop and now everything is working properly.
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