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[Guide] Laptop backlight control using AppleBacklightFixup.kext

Joined
Mar 21, 2011
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820
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GA-Z390-Aorus Pro
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i7-9700K
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RX 590
You can clearly see you suffer from SMBIOS truncation (look at root node in ioreg).
You need config.plist/KernelAndKextPatches/DellSMBIOSPatch=true

The patchmatic -extract and ioreg does not match the CLOVER.zip you attached (contents of SSDT-PNLF.aml are clearly in SDST-10.aml in patchmatic data).

Your kextcache output shows:
- IntelBacklight.kext installed
- AppleBacklightInjector.kext not installed

You can read post #1 to discover why that is incorrect...

Also...
Your kextcache output proves kexts are not installed correctly (kextcache output proves FakeSMC.kext 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/
thanks. now sorted out.
I hadn't noticed the DellSMBIOSPatch in the config.plist. what does it do?
thanks as always
ken
 

RehabMan

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thanks. now sorted out.
I hadn't noticed the DellSMBIOSPatch in the config.plist. what does it do?
thanks as always
ken

Compare the root node with and without DellSMBIOSPatch ... then you'll know what fix it provides!
 
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Your EFI/Clover/ACPI/patched is missing SSDT-PNLF.aml.
Also, you have other problems in your config.plist (eg. missing ACPI/SSDT/Generate/PluginType=true for CPU PM).

Hey RehabMan, look I did your tutorial all again but the "SSDT-PNLF.aml" still don't going into to the Problem Reporting, but it is in the EFI/Clover/ACPI/patched on my computer. The config.plist I think I resolved (check attachment please). I really want to figured it out because that's draining my battery!! :banghead:
 

Attachments

  • debug_18523.zip
    3.1 MB · Views: 68
  • config.plist
    17.1 KB · Views: 150

RehabMan

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Hey RehabMan, look I did your tutorial all again but the "SSDT-PNLF.aml" still don't going into to the Problem Reporting, but it is in the EFI/Clover/ACPI/patched on my computer. The config.plist I think I resolved (check attachment please). I really want to figured it out because that's draining my battery!! :banghead:

SSDT-PNLF.aml is missing from ACPI/patched.
The CLOVER in the debug*.zip, ioreg, and your Clover bootlog prove this.
 
Joined
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Acer Aspire V3 771G Laptop
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Hi RebabMan,
I think I followed your guide and SSDT-PNLF is loaded, when I'm reading the boot.log correctly.
But still I don't a have a slider to adjust brightness.
Perhaps you see something in the log that explains it.
 

Attachments

  • config.plist
    26.1 KB · Views: 174
  • boot.txt
    39 KB · Views: 117

RehabMan

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Hi RebabMan,
I think I followed your guide and SSDT-PNLF is loaded, when I'm reading the boot.log correctly.
But still I don't a have a slider to adjust brightness.
Perhaps you see something in the log that explains it.

"Problem Reporting" files are incomplete.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Use the gen_debug.sh tool mentioned in the FAQ, that way it is less likely you'll omit something.
 
Joined
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Messages
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Motherboard
Acer Aspire V3 771G Laptop
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i3-3210M
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Intel HD4000 (Optimus Nvidia 650M)
Mobile Phone
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Attachments

  • debug_16932.zip
    3.4 MB · Views: 46

RehabMan

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Hi All ;
I decided to finally upgrade to 10.13.4, from Sierra.
in Sierra the brightness did not work but I never tried to fix .
now that I followed this thread and did every step. I tried to solve the issue but I couldn't.
the brightness slider and the brightness key work but the screen brightness does not change, always max .
the IGPU for me is defined in DSDT .
I'm attaching my clover patched folder and config.plist .
can anyone please tell me what went wrong ?
thanks.
 

Attachments

  • patched.zip
    26.9 KB · Views: 41
  • config.plist
    11.9 KB · Views: 173

RehabMan

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Joined
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Messages
184,621
Motherboard
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Hi All ;
I decided to finally upgrade to 10.13.4, from Sierra.
in Sierra the brightness did not work but I never tried to fix .
now that I followed this thread and did every step. I tried to solve the issue but I couldn't.
the brightness slider and the brightness key work but the screen brightness does not change, always max .
the IGPU for me is defined in DSDT .
I'm attaching my clover patched folder and config.plist .
can anyone please tell me what went wrong ?
thanks.

"Problem Reporting" files are incomplete.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Use the gen_debug.sh tool mentioned in the FAQ, that way it is less likely you'll omit something.
 
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