ThinkPad T490

Lenovo T490 macOS with OpenCore

Status: WIP

Update: This project will no longer be actively maintained, since I recently got an M1 MacBook. I may still update OpenCore and the kexts every once in a while but no promises about that. Feel free to fork this repo if you want to see this project live on!

This repo contains information for getting macOS 11 Big Sur working on a Lenovo T490 laptop.

The compatibility is very good for the most part, and it behaves as a real MacBook Pro, including camera, audio, trackpad, iCloud services. In general, the experience is pleasant, as the laptop is smooth and responsive under macOS. Battery life is acceptable (around 6h with the brightness set to half). The Intel WiFi card is soldered onto the motherboard, which means it can’t be replaced with a Broadcom one, but the Intel card is now functional – I am getting 150/20 mbit up/down on a 200/20 connection. With the latest AirportItlwm kext even Handoff and continuity features are working, except for AirDrop.

Currently running:

Component Version
macOS version 11.2 (20D64)
OpenCore 0.6.5
BIOS version 1.71
EC version 1.23

Hardware info

Component Model
CPU Intel i5-8265U/i7-8565U Whiskey Lake
Memory 16GB/32GB 2400Mhz
Storage WDC PC SN720 512GB
Display 14″ non-touch 1920×1080
GPU Intel UHD 620
Camera 720p with Windows Hello IR sensor
WLAN Intel Wireless-AC 9560 2x2ac with BT5.0
Battery Single 3-cell 50Wh
Touchpad Synaptics TM3471-010

Note on NVME storage: Samsung PM981 drives will not work out of the box if at all, consider replacing the drive if you have one (issue)

Status

Working

  •  Keyboard (including all media keys)
  •  Battery indicator
  •  Display auto brightness
  •  Audio
  •  Ethernet
  •  iCloud services – iMessage, FaceTime, AppStore
  •  GPU acceleration
  •  Camera
  •  Microphone
  •  Bluetooth
  •  Mac-like booting interface for multiboot
  •  Sleep/wake
  •  Trackpad and gestures
  •  Native CPU power management
  •  HDMI video and audio up to 1440p
  •  Handoff, continuity
  •  AirPlay
  •  FileVault
  •  DRM content playback (Netflix, Apple TV+)
  •  Thunderbolt – works with Lenovo Thinkpad Thunderbolt 3 Dock (tested Ethernet, display over DisplayPort and HDMI, USB ports)

Working, sort of

  •  Wifi works but not at full speeds
  •  Audio jack – glitches after wake from sleep. I don’t use it so won’t fix but will merge pull requests
  •  USB-C video output works, but no audio

Not working at the moment

  •  HDMI video at 4K
  •  SD card reader – I don’t use it so won’t fix but will merge pull requests
  •  AirDrop

Not tested

  •  Sidecar

Kexts

Kext Version Remark
AirportItlwm 1.3.0 alpha WiFi kext
AppleALC 1.5.7 Fixes onboard audio
BrightnessKeys 1.0.1 Fix brightness keys
CPUFriend 1.2.3 Power management
CPUFriendDataProvider Frequency vector for CPUFriend
IntelBluetoothFirmware 1.1.2 Fixes bluetooth
IntelBluetoothInjector 1.1.2 Companion for IntelBluetoothFirmware
IntelMausiEthernet 2.5.1d1 Fixes ethernet
Lilu 1.5.1 Kext patcher
NoTouchID 1.0.4 Disable TouchID
NVMEFix 1.0.5 Fix for NVME SSDs
SMCBatteryManager 1.2.0 Battery indicator
SMCLightSensor 1.2.0 Ambient light sensor
SMCProcessor 1.2.0 CPU temp monitoring
SMCSuperIO 1.2.0 Monitor fan speed, not working
USBInjectAll 0.7.5 Inject all USB, only for troubleshooting
USBMap Inject only mapped USB
VirtualSMC 1.2.0 SMC chip emulation
VoodooRMI 1.3.1 Trackpad driver
VoodooSMBUS 3.0 dev SMBUS driver
VoodooPS2Controller 2.2.1 Enable keyboard
WhateverGreen 1.4.7 Graphics
YogaSMC 1.4.2 ACPI driver

ACPI patches

Patch Remark
SSDT-ALS0 Fix display auto brightness
SSDT-AWAC Fix AWAC
SSDT-BAT Fix battery indicator
SSDT-EXT1-FixShutdown Fix shutdown on reboot
SSDT-EXT3-LedReset-TP Fix LED not working after wake
SSDT-EXT4-WakeScreen Fix screen not waking
SSDT-GPRW Fix immediate wake after sleep
SSDT-HPET Fix irq conflicts
SSDT-PLUG x86 plugin injection fix
SSDT-PNLF-CFL Backlight fix
SSDT-PTSWAK Fix sleep issues
SSDT-THINK YogaSMC helper
SSDT-USBX USBX patch
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