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macOS on Dell XPS 9350

This repository contains a sample configuration to run macOS (Currently Mojave Sierra 10.14.2) on a Dell XPS 9350

Used Hardware Configuration

  • Dell XPS 9350

    • Intel i7-6560U
    • 8GB RAM
    • Sharp SHP144 LQ133Z1 QHD+ (3200x1800) Touchscreen display, working multitouch gesture with VoodooI2C
    • PLEXTOR 512GB SSD (PLEXTOR PX-512M6G-2280) on latest firmware
      • To format nvme ssd for APFS with 4K sectors, use nvme-cli using this guide
    • Dell DW1830 Wireless (Taobao)
      • Wi-Fi device ID [14e4:43ba], shows as Apple Airport Extreme
      • Bluetooth device ID [0a5c:6410], chipset 20703A1 with firmware v5 c4518 using BrcmPatchRAM2.kext
      • DW1830 has three ipex4 connectors, but xps 13 only has two antennas. In this case you should connect j0+j1 or j1+j2, because j1 is the antenna for both wlan and bluetooth.
    • Webcam, device ID [05ac:8600], works out of the box
    • SD card reader (RTS525A), macOS open-source project

  • Firmware Revisions

    • BIOS version 1.9.0

  • External Devices

    • Dell WD15 USB-C Dock
      • Supports USB-C PD (Power Delivery), Ethernet, 3x USB-3, 2x 3.5mm jack, VGA, HDMI & DisplayPort connections

Preparation

This repository has been tested against Dell XP 9350 bios version 1.9.0. For best results ensure this is the bios version of the target machine.

UEFI Variables

Ensure that the variable offset is correct for your current bios.

  • Dump your bios with Fptw64: fptw64.exe -d bios.bin -bios
  • Open dumped bios with UEFITool, search for "BIOS LOCK" and you will find the section for bios settings, extract the section, let's say the extracted file is Section_PE32_image_Setup_Setup.sct
  • Open Section_PE32_image_Setup_Setup.sct with Universal IFR Extractor and click extract, there will be a file named Section_PE32_image_Setup_Setup IFR.txt
  • Open Section_PE32_image_Setup_Setup IFR.txt and you will see all the hidden settings.

The included Clover bootloader contains an updated DVMT.efi, which includes a setup_var command to change UEFI variables. You can launch DVMT.efi either from Clover directly by renaming it to Shell64U.efi in the tools folder or from a custom UEFI entry to DVMT.efi added in BIOS settings.

You can modify the following variables in case the MSR 0xE2 _xcpm_idle kernel patch or whatevergreen are not updated for new mac os release. If you have no idea about UEFI variables, just ignore this section.

Variable Offset Default value Desired value Comment
CFG Lock 0x109 0x01 (Enabled) 0x00 (Disabled) Disable CFG Lock to prevent MSR 0x02 errors on boot
DVMT Pre-allocation 0x432 0x01 (32M) 0x06 (192M) Increase DVMT pre-allocated size to 192M for QHD+ displays (not needed by Iris graphics)
DVMT Total Gfx Memory 0x433 0x01 (128M) 0x03 (MAX) Increase total gfx memory limit to maximum (not needed by Iris graphics)

Clover Configuration

All Clover hotpatches are included in source DSL format in the DSDT folder. If required the script --compile-dsdt option can be used to compile any changes to the DSL files into ./CLOVER/ACPI/patched.

Copy CLOVER folder to your EFI partition to install/boot Mac OS before you do something further.

After boot into installed Mac OS, use tools/Clover Configurator.app to tweak clover settings.

  • Generate suitable SMBIOS (ProductName: MacBookPro13,2)
  • If you have QHD+ screen, in Boot Graphics section, set EFILoginHiDPI to 1 and UIScale to 2 for correct boot logo size.

WLAN/Bluetooth

Put FakePCIID_Broadcom_WiFi.kext and FakePCIID.kext in Clover/kexts/Other if you have non-working broadcom wlan device described here: OS-X-Fake-PCI-ID. AirportBrcmFixup should be able to do all the job.

You may fail to boot with stock DW1820A enabled, disable it during installation. After installation, follow this tutorial to re-enable it.

To fix DW1820A/DW1830/DW1560 bluetooth support, run kexts/Library-Extensions/install.sh to install BrcmFirmwareRepo.kext and BrcmPatchRAM2.kext to /Library/Extensions/

Audio

In order to support the Realtek ALC256 (ALC3246) codec of the Dell XPS 9350, AppleALC is already included with layout-id 13.

Alternatively, a custom AppleHDA injector with layout-id 2 can be used. The script option --patch-hda option generates an AppleHDA_ALC256.kext injector and installs it in /Library/Extensions.(not tested)

Run kexts/ComboJack_Installer/install.sh to install a daemon that fixes several audio issues including headset support.

USB

It is a known bug that usb disks get ejected unexpectedly upon sleep/wake, run kexts/USBFix/install.sh to install a daemon that safely unmount usb disks before sleep and remount after wake.

Type-c hotplug is buggy, after unplugged you have to wait for about 10 seconds to plug again. Anyway, avoid plugging and unplugging too often, it could crash the system.

Thunderbolt

It works, although there is no hotplug/sleep support (will cause panic).

CPU Profile

In order for macOS to effectively manage the power profile of the processor, it is necessary to include a powermanagement profile for X86PlatformPlugin.

There are three different solutions to CPU power management, use only one of them:

  • Put kexts/CPUPM/CPUFriend.kext in Clover/kexts/Other, put kexts/CPUPM/<your-cpu-model-here>/SSDT-CpuFriend.aml in Clover/ACPI/patched.
  • Put kexts/CPUPM/CPUFriend.kext and kexts/CPUPM/<your-cpu-model-here>/CPUFriendDataProvider.kext in Clover/kexts/Other.
  • Install kexts/CPUPM/<your-cpu-model-here>/X86PlatformPluginInjector.kext to /Library/Extensions.

Instructions on how to build a power mangaement profile for any other CPU types can be found here: CPUFriend By PMheart

Display Profiles

Display profiles for the Sharp LQ133Z1 display (Dell XPS 9350 QHD+) are included in the displays folder.

Profiles can be installed by copying them into /Users/<username>/Library/ColorSync/Profiles folder, additionally the macOS built-in ColorSync utility can be used to inspect the profiles.

Profiles are configured on a per display basis in the System Preferences -> Display preferences menu.

Undervolting

Ensure that the variable offset is correct for your current bios.

Warning: undervolting may render your XPS 9350 unusable.

Essentially undervolting allows your processor to run on a lower voltage than its specifications, reducing the core temperature.

This allows longer battery life and longer turbo boost.

The undervolt settings I use are configured in UEFI, with the following settings:

  • Overclock & SpeedShift enable
    0x3D -> 01
    0xD8 -> 01

  • Undervolt values:
    0x42 -> 0x64 (CPU: -100 mV)
    0x44 -> 01 (Negative voltage for 0x42)
    0x502 -> 0x1E (GPU: -30 mV)
    0x504 -> 01 (Negative voltage for 0x502)

Remember, these values work for my specific machine, but might cause any other laptop to fail to boot! You should find out the suitable voltage offset for your laptop with Intel XTU or ThrottleStop first!

HiDPI

For a FHD display, use one-key-hidpi

Credits