vanquybn

@Baio77 it start, Brightness does not work, Trackpad very lag/slowly. Please see my attached IOReg below. @Hervé Yes, it is my screen's EDID. My Hack works well with/without it. IOReg20230530.zip

I have just add rename to OC and SSDT-PNLF, the devices appear as your laptop (you can see in IOReg attached below), but Brightness control still not working. About EFI folder question: Yes, I made it myself but the SSDT I copied from Dell Precision 7650, it almost same as 7550 except the cpu. I also tried a clean EFI with all SSDT and config option described in Dortania guide, and Brightness does not work: https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/coffee-lake-plus.html#acpi IOReg20230529.zip

@Hervé Thank you for your reply, Yes it is Precision 7550, I have just updated the post #1. Please have a look. @Baio77 Thank you for your advise. It is not start. Please have a look my EFI and IOReg at post 1.

Hello, My internal LCD: 15.6", UHD 3840x2160, 60Hz, Anti-Glare, Non-Touch, 500 Nits. What I have tried: - with or without SSDT PNLF - with or without OC boot arguments - all the ig-platform-id for CometLake/IceLake for each SMBIOS MBP16.3 and MBP16.4 The brightness bar appears but brightness cannot be adjusted. Can you advise? Please see my images attached. EFI.zip 7550-ACPI-FROM-LINUX.zip MacBookPro.ioreg.zip

Hello, I need help to install Monterey. Dell Precision 7550 Intel Core Processor i9-10885H 10TH Gen. Intel Wi-Fi 6 AX201 2x2 (Gig+) + Bluetooth 5.1 Intel UHD Graphics 630 - NVIDIA disabled 1 TB NVMe 15.6" UHD, 3840x2160, 60Hz Please review my EFI at: https://drive.google.com/file/d/1O0n50xmuQOzciHRlnRS74c6IlySwLKXI/view?usp=share_link Thank you in advance. dsdt_dump.aml.zip

Legacy_Sierra_QMI is simple way to inject this card, It work fine for me from the 10.10 till now (10.14.5). More video at:

It is already in this forum:

Everything work except the wireless

I usually restart from windows without problem. I use the ALC kext.

It work fine with native kext.

What is Nvidia model on yours ?

Open App store then hit "Update", at the clover screen you should disable nvidia at this time then wait untill the update completed.

Disable optimus then Nvidia will be on internal LCD

You can use HDAEnabler.kext without edit layout-id in dsdt/ssdt.

Or you can use AppleBacklightInjector.kext to resolve it