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Use F3 and F4 for Keyboard Backlight without FN key

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I have an asus laptop running 10.14.1. Right now I have my backlight working with asusnbfnkeys.kext and with DSDT patching with 4 levels of brightness. However, in order to change the brightness level I need to press FN + F3 to decrement and FN + F4 to increment. How can I map the keys F3 to FN + F3 and F4 to FN + F4 so I don't need to press FN to activate them? Thanks.

The dsdt patch text file is attached.

KeyboardBacklight Patch 4.txt

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Thanks for the reply!

After looking at the guide, I was able to get the acpidebug log working. However, it seems that I have both PS2K and PS2M as keyboard devices. Also, the debug text I got back was quite different from the guide and I have it attached below. How should I patch it considering these text files?

Edit: An image of the ioreg as I see it is attached - I have full use of my keyboard and trackpad (with gestures)




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