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

I confirmed that Dell M4800 (nvidia K2100m or K1100m) work fine on MacOS high sierra 10.13.x without problem. Make sure you are using CodecCommander V2.2 originally patched by theDarkVoid to fix Headphone of M4800

I have same issue and this is how i resolved my problem. Delete all EMUVariable in Efi partition then reset NVRAM

Attached file is new patch for you. Make sure you are use original AppleHDA and layout id 18 in your DSDT. Please remove all the previous kext patch then put this in S/L/E Rebuild cache then reboot. ALC3235.zip

Use Ubuntu Live USB to boot into your laptop then dump codec by the command: cat /proc/asound/card0/codec#0 > ~/Desktop/codec_dump.txt (or) cat /proc/asound/card0/codec#1 > ~/Desktop/codec_dump.txt (or) cat /proc/asound/card0/codec#2 > ~/Desktop/codec_dump.txt Then attache the codec dump to this post. let me see i can create new patch for u

You are right, "HDAEnabler.kext" in the attached file is inject for layout-id 18

Since I added my patch to AppleALC (version 1.2.1 or newer) so we can use it in this Dell type. You can download attached file or latest version from here: https://github.com/vit9696/AppleALC/releases AppleALC1.2.6_Lilu.1.23.zip

Let "Switchable graphic" on then you can use internal LCD via intel HD4600 and external LCD via Nvidia

Brightness control working fine. Trackpad does not crash

Most same as previous version (10.12), Just put apfs.efi into Efi/clover/drivers64UEFI.

This card still working well for me on my old Laptop with OS 10.12.3. I only use fakePCIID_Broadcom_WIFI.kext and FakcePCIID.kext for wifi