[Guide] Laptop backlight control using AppleBacklightFixup.kext

[rajuchacharuk]

Is this unlocked BIOS or stock BIOS?

Stock BIOS.

You could try enabling it, but if the hardware isn't actually present, it won't work (not even in Windows).

Thats why I never tried to enable it.

 

[RehabMan]

Stock BIOS.

Thats why I never tried to enable it.

It would seem unlikely the option is present in stock BIOS if the hardware is not present.

 

[phoric]

Also Note: The SSDT-PNLF.aml assumes that GFX0 (or VID on Thinkpads) is already renamed to IGPU. It will not work if your IGPU is not at _SB.PCI0.IGPU.

Could someone elaborate on what this means? Are these files somewhere that need to be renamed? How do I know if I need to do this on my system?

 

[RehabMan]

Could someone elaborate on what this means? Are these files somewhere that need to be renamed? How do I know if I need to do this on my system?

Renaming GFX0->IGPU is a very common ACPI patch (it enables IGPU PM).
It is done by default in the guide plists:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

 

[behtaaash]

Hi
Brightness works fine for me but minimum brightness level is too high.
I tried editing info.plist in AppleBacklightInjector.kext to something lower, but it did not works.

 

[RehabMan]

Hi
Brightness works fine for me but minimum brightness level is too high.
I tried editing info.plist in AppleBacklightInjector.kext to something lower, but it did not works.View attachment 329649

Your kextcache output proves kexts are not installed correctly.
All kexts you need must be installed to the system volume.
Read post #2 of the Clover guide for details:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

Note also you installed AppleBacklightInjector.kext incorrectly:
Kext rejected due to improper filesystem permissions: <OSKext 0x7fe976d77c00 [0x7fffa7731af0]> { URL = "AppleBacklightInjector.kext/ -- file:///Library/Extensions/", ID = "org.rehabman.injector.AppleBacklightInjector" }

See FAQ for proper kext installation procedures:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

 

[behtaaash]

Your kextcache output proves kexts are not installed correctly.
All kexts you need must be installed to the system volume.
Read post #2 of the Clover guide for details:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

Note also you installed AppleBacklightInjector.kext incorrectly:
Kext rejected due to improper filesystem permissions: <OSKext 0x7fe976d77c00 [0x7fffa7731af0]> { URL = "AppleBacklightInjector.kext/ -- file:///Library/Extensions/", ID = "org.rehabman.injector.AppleBacklightInjector" }

See FAQ for proper kext installation procedures:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

I did what you said
- Installed needed kext in /S/L/E and removed from clover
- Removed old AppleBacklightInjector.kext and install it again from your repo with terminal in /L/E
- Rebuild cache
- Restart
Now i got no brightness slider!
Where did i go wrong?

 

[RehabMan]

I did what you said
- Installed needed kext in /S/L/E and removed from clover
- Removed old AppleBacklightInjector.kext and install it again from your repo with terminal in /L/E
- Rebuild cache
- Restart
Now i got no brightness slider!
Where did i go wrong?

Your kextcache output proves kexts are not installed correctly (it proves FakeSMC.kext is not installed).
All kexts you need must be installed to the system volume.
Read post #2 of the Clover guide for details:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

Your config.plist is also wrong. See guide for valid starter plists:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/

Your ACPI patched content is completely wrong.
Remove everything there, then see guide:
https://www.tonymacx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/

After you apply basic patches ("OS Check Fix", "IRQ Fix", LPC), then revisit this guide and add SSDT-PNLF.aml.

Your profile is also wrong. Please fix as per FAQ:
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

 

[4realleb]

Hey Rehabman, I believe I followed your guide pretty closely however I'm not getting any brightness control. Thought I'd grab a second opinion before I go ahead and patch the EDID. Any help would be appreciated.

 

[RehabMan]

Hey Rehabman, I believe I followed your guide pretty closely however I'm not getting any brightness control. Thought I'd grab a second opinion before I go ahead and patch the EDID. Any help would be appreciated.

You did not follow the guide.
You have IntelBacklight.kext installed.
Post #1 is very clear regarding IntelBacklight.kext... (must not use).