Reduce brightness of the keyboard backlight

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Reduce brightness of the keyboard backlight

Posts: 1
Threads: 1
Joined: May 2018
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foggs

Junior Member

05-24-2018, 03:59 PM

I want to try reduce the brightness of the keyboard backlight on my Lenovo Yoga 2 13" - it only has one setting.

It's running an InsydeH2O v3.7 BIOS.

I noticed it fades in and out when turning it on and off so I figured it's probably PWM controlled. I found a schematic online and it shows it's connected to the BIOS via a PWM GPIO.

So now I'm looking for a way to adjust it. Is it possible? And how would I go about it?

Apologies if this is in the wrong place.

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