[Guide] Laptop backlight control using AppleBacklightFixup.kext

[Feartech]

hello ! here are my files if someone can take a look. thanks!

doesn't look like you installed AppleBacklightInjector.kext

 

[RehabMan]

hello ! here are my files if someone can take a look. thanks!

As per post #1, you must rename GFX0->IGPU. It is a requirement/assumption of SSDT-PNLF.aml.

 

[AlistairOvereem]

When i try to patch ssdt-pnlf i recive this errors.

 

[Feartech]

When i try to patch ssdt-pnlf i recive this errors.

you shouldn't need to patch SSDT-PNLF.aml should you?

 

[maromi]

Possible a mistake has led to unstable kernel cache, which will make Clover kext patching problematic/unreliable.
But who knows... you haven't tried the latest yet...


Thanks for the info. I'll be taking a peek.

it's works now. I had to update to a newer Clover build than the recommended one for 10.12.4. i was on build 3998 and it didn't work. build 4049 worked.
thanks

 

[darkevin]

Hello,
How did you do these 3 things, it is not explained :
- SSDT-PNLF.aml in ACPI/patched
- AppleBacklight patch in config.plist/KernelAndKextPatches/KextsToPatch
- AppleBacklightInjector.kext installed to /L/E

Thank you

 

[RehabMan]

When i try to patch ssdt-pnlf i recive this errors.

Your incorrect edits to the file are causing the error.
You should not be changing SSDT-PNLF.dsl.

 

[RehabMan]

it's works now. I had to update to a newer Clover build than the recommended one for 10.12.4. i was on build 3998 and it didn't work. build 4049 worked.
thanks

Probably kext patching was broken in the specific version you had...
Thanks for testing.

 

[RehabMan]

Hello,
How did you do these 3 things, it is not explained :
- SSDT-PNLF.aml in ACPI/patched
- AppleBacklight patch in config.plist/KernelAndKextPatches/KextsToPatch
- AppleBacklightInjector.kext installed to /L/E

Thank you

You load SSDT-PNLF.dsl in MaciASL and Save As (format: ACPI Machine Language Binary) to SSDT-PNLF.aml.
Then you copy the resulting file to ACPI/patched on your EFI partition.
The AppleBacklight patch is simple copy/paste from config_patches.plist to your own config.plist.
There are many ways to install kexts. The guide in post #1 uses Terminal. You should read it.

 

[AlistairOvereem]

I put "Ssdt-pnlf" to efi/clover/acpi/patched.

AppleBacklight patch in config.plist/krenelandkextpaches/kexttopatch.

AppleBacklightInjector.kext installed to /L/E.

Should i patch dsdt with "rename gfx0 to igpu"? I tried but didnt work beacause after restart i see this screen: