Dell Haswell Brightness Fix needed
I’m trying to get the Brightness slider working on my Dell Inspiron 7437 with El Capitan installed. It has a Intel Haswell 4th Generation Core i7-4500U Processor, Video Card: Intel HD Graphics 4400. I’ve tried the following combinations without success. I hope someone can help me.
Extracted files using Clover F4
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External(MDBG, MethodObj, 1)
External(_GPE.MMTB, MethodObj, 0)
External(_SB_.PCI0.LPCB.H_EC.ECWT, MethodObj, 2)
External(_SB_.PCI0.LPCB.H_EC.ECRD, MethodObj, 1)
External(_SB_.PCI0.PEG0.PEGP.SGPO, MethodObj, 2)
External(_SB.PCI0.GFX0.DD02._BCM, MethodObj, 1)
External(_SB.PCI0.SAT0.SDSM, MethodObj, 4)
External(_SB.PCI0.SAT1.SDSM, MethodObj, 4)
External(_GPE.VHOV, MethodObj, 3)
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pbpaste>refs.txt
iasl -da -dl -fe refs.txt *.aml
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Using MaciASL with the repository
http://raw.github.com/RehabMan/Laptop-DSDT-Patch/master
Combination 1:
Combination 2.1:
- IntelBacklight.kext
- SSDT-7.dsl patched:
“[igpu] Rename GFX0 to IGPU”
“[igpu] Haswell HD4400/HD4600/HD5000”
“[igpu] Brightness fix (Haswell/Broadwell)”
Combination 2.2:
- IntelBacklight.kext
- SSDT-7.dsl patched:
“[igpu] Rename GFX0 to IGPU”
“[igpu] Haswell HD4400/HD4600/HD5000”
“[igpu] Brightness fix (Haswell/Broadwell)”
“[igpu] Rename B0D3 to HDAU”
All aml files placed in EFI/CLOVER/ACPI/patched
Kexts placed in EFI/CLOVER/kexts/10.11 folder AND using Kext Utility installed in system