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I am able to use QE/CI, but I still have a problem.

When I wake from sleep the pc, the brightness automatically sets to max.

I found this post at tonymacx86 where is explained how to fix it, but I am not able to understand:


This fix works in case brightness increases after sleep.


i know this issue in some laptops using intel graphic chipset


and for only intel integrated graphic chipset (hd3000, hd4000)



- remove any kexts related backlight.

- PNLF exists in your dsdt

- set snb platform id or ig platform id in dsdt


1. HD3000

- find your snb platform id. For macbook pro 8,1 it is 01020400

- open appleintelgraphicsfb.kext with hex editor

- find your snb platform id and go to 100700100700 right after your id

- replace 1007000010070000 to 121300001213000

- rebuild kernel cache







What shell I do?

Thanks :D

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