AbhilashSathe Posted August 29, 2020 Share Posted August 29, 2020 I have followed this tutorial and added SSDT-PNLF to ACPI directory. Also modified WhateverGreen. Removed any brightness kext from /Library/Extensions. Also added ACPIBacklight kext to opencore kexts. However, I still can't adjust brightness. What should I do? EFI has been attached. EFI.zip Link to comment Share on other sites More sharing options...
AbhilashSathe Posted August 29, 2020 Author Share Posted August 29, 2020 1 hour ago, Hervé said: Display clearly appears as external screen so you'll never get any slider bar until it registers as built-in LCD. Check your SMBIOS settings make sure you're not using an iMac or MacPro profile but that of MacBookPro11,1 (Haswell iGPU model). Adjust your OC config accordingly. Link to comment Share on other sites More sharing options...
AbhilashSathe Posted September 2, 2020 Author Share Posted September 2, 2020 On 8/29/2020 at 6:06 PM, Hervé said: Display clearly appears as external screen so you'll never get any slider bar until it registers as built-in LCD. Check your SMBIOS settings make sure you're not using an iMac or MacPro profile but that of MacBookPro11,1 (Haswell iGPU model). Adjust your OC config accordingly. Any suggestions? Link to comment Share on other sites More sharing options...
AbhilashSathe Posted September 3, 2020 Author Share Posted September 3, 2020 I have figured out the solution. The problem was basically with SSDT-PNLF. This one solved my problem.SSDT-PNLF-Haswell_Broadwell.aml 1 Link to comment Share on other sites More sharing options...
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