Hamba • Upvote 0 • Downvote 0

Brightness level settings not found in macOS settings

my laptop screen is too bright. I want to reduce the brightness on the screen but I did not find the slider menu to adjust the brightness. I have tried using the Brightness Fix patch to DSDT but it still doesn't work.


Does anyone know where the problem is?

Budiy • Upvote 0 • Downvote 0#1

I have had the same problem. The first thing to do is show the brightness slider menu in the settings menu..


please download this archive file: drive.google.com/file/d/1gVP375At3pq-V68VGD3TR0G8VMoCHo4E/view?usp=sharing


this is how I do it :

1. Delete this kext from /System/Library/Extensions/ (if exists)

• delete IntelBacklight.kext

• delete ACPIBacklight.kext

• delete AppleBacklightFixup.kext

nb: you can use rm command to delete the kext.

for example, run this commands from terminal:

sudo rm -rf /System/Library/Extensions/IntelBacklight.kext
sudo rm -rf /System/Library/Extensions/ACPIBacklight.kext
sudo rm -rf /System/Library/Extensions/AppleBacklightFixup.kext

2. Install kext to /System/Library/Extensions/ (if not exists)

• install AppleBacklight.kext

• install AppleBacklightExpert.kext

nb: you can use Kext Wizard or use cp command to install that kext

for example, run this commands from terminal:

sudo cp -R /Users/Jones/Desktop/AppleBacklight.kext /System/Library/Extensions/
sudo cp -R /Users/Jones/Desktop/AppleBacklightExpert.kext /System/Library/Extensions/

3. Reboot

after rebooting, the slider menu will appear in the macOS settings. try the slider, does this work?


if the brightness slider doesn't work, do these steps :

1. download the SSDT-PLNF.aml patch. You can get it in the RehabMan-BacklightFixup-2018-1013.zip or use the kext file from archive that has been downloaded at the google drive link above


2. copy SSDT-PLNF.aml from Rehabman to clover directory /EFI/CLOVER/ACPI/patched/


3. Reboot


nb: you only need SSDT-PLNF.aml file. Kext file AppleBacklightFixup.kext from RehabMan-BacklightFixup-2018-1013.zip is not used. if you use that kext, maybe the brightness slider will disappear again..


tested on laptop Haswell .. MacOS High Sierra 10.13.6 😇

Hamba 2020-06-27 19:41:28 #2 :

thanks.. it work now. great!!!

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