x1c6-hackintosh/docs/4_README-ACPIpatching.md

ACPI Patching:

1. Download and install MaciASL if you do not have it already.
2. Dump your original ACPI tables. There are a number of ways to do this, using Clover, Hackintool, Linux. See here.
3. In Terminal, disassemble the copied ACPI tables with "iasl -dl DSDT.aml". For our purpose, the only file that really matters is DSDT.dsl

• Your DSDT file will be used as a reference table in determining that needs to be patched and what patches need to be added.

4. Source SSDT*.dsl patch files are located in patches folder.
5. Refer to my EFI-OpenCore folder to see which patches are currently being used by me.
6. If your x1c6's model is 20KH*, most of my compiled hotpatches and can likely be copied straight to your setup. However, some patches may require certain directories or variables to be changed depending on your hardware (examine your own disasemebled DSDT). For these, edit the .dsl patch files. Also, note that some SSDT patches also require accompanying OpenCore/ Clover ACPI patches to work.

A good way to see if you need to edit and compile your own SSDT patches is to compare your DSDT.dsl with mine of the same BIOS version. You can find my disasemebled DSDT file in ACPI/Disassembled ACPI/BIOS-v*.

Should your source DSDT be similar enough (in regards to certain items in these ACPI patches)to mine. Congrats! You can simply try my compiled patches. Should it differ however, please carefully examine these notes and create your own SSDT patches.

7. Once you have the compiled ACPI patches, place them in EFI/OC/ACPI/ and make sure to create matching entries within OpenCore's config.plist's ACPI/Add/ section.

Hotpatching Notes

• Source ACPI patches are .dsl Edit these as needed.
• Compiled ACPI patches are .aml Once compiled, these belong to EFI/OC/ACPI.
• OpenCore Patches are patches for config.plist in their respective level.

Some patches here may be unused. Refer to the current OpenCore-EFI folder to see which one I am currently using. While other patches may be needed case-by-case, such as the WiFi/Bluetooth patches.

Some Thinkpad machines are LPC and some areLPCB. Please examine your own DSDT and modify patches as needed.

Non-native WiFi and Bluetooth

OpenCore Patches/ Config-DW1560.plist for DW1560 model cards.
OpenCore Patches/ Config-DW1820A.plist for WD1820A model cards.

*Notice that these patches require additional kexts to be installed. See them in Kernel/Add/

SSDT-OCBAT0-TP_tx80_x1c6th - Enabling Battery Status in macOS

Need OpenCore Patches/ TPbattery.plist

• Single battery system: only BAT0 in ACPI, no BAT1.

SSDT-PLUG-_PR.PR00 - Enablaing Native Intel Power Managements

Why?: Processor search in DSDT, rename PR to other variables as needed.

    Scope (\_PR)
    {
        Processor (PR00, 0x01, 0x00001810, 0x06){}
        Processor (PR01, 0x02, 0x00001810, 0x06){}
        Processor (PR02, 0x03, 0x00001810, 0x06){}
        Processor (PR03, 0x04, 0x00001810, 0x06){}
        Processor (PR04, 0x05, 0x00001810, 0x06){}
        Processor (PR05, 0x06, 0x00001810, 0x06){}
        Processor (PR06, 0x07, 0x00001810, 0x06){}
        Processor (PR07, 0x08, 0x00001810, 0x06){}
        Processor (PR08, 0x09, 0x00001810, 0x06){}
        Processor (PR09, 0x0A, 0x00001810, 0x06){}
        Processor (PR10, 0x0B, 0x00001810, 0x06){}
        Processor (PR11, 0x0C, 0x00001810, 0x06){}
        Processor (PR12, 0x0D, 0x00001810, 0x06){}
        Processor (PR13, 0x0E, 0x00001810, 0x06){}
        Processor (PR14, 0x0F, 0x00001810, 0x06){}
        Processor (PR15, 0x10, 0x00001810, 0x06){}
    }

SSDT-PNLF-SKL_KBL - Enabling Brightness Mangement in macOS

iGPU is PCI0.GFX0
Why?: Skylake/ KabyLake/ KabyLake-R CPU.
Used in conjuction with WhateverGreen.kext

SSDT-HPET

• Patch out IRQ conflicts. Credits to corpnewt/SSDTTime.
  Needs OpenCore Patches/ HPET.plist

SSDT-Keyboard - Remapping Fn and PrtSc Keys

Keyboard path is \ _SB.PCI0.LPCB.KBD.  
For multimedia functions:

• Remap 1: F4 (Network) to F4
• Remap 2: F5 (Brightness Down)
• Remap 3: F6 (Brightness Up)
• Remap 4: F7 (Dual Display) to F16
• Remap 5: F8 (Network) to F8
• Remap 6: F9 (Settings) to F19
• Remap 7: F10 (Bluetooth) to F20
• Remap 8: F11 (Keyboard) to F17
• Remap 9: F12 (Star) to F18
• Remap 10: PrtSc to F13
• Remap 11: Fn + K to Deadkey
• Remap 12: Fn + P to Deadkey For Fn 1-12 functions, check the following option within Preferences/Keyboard:
  

Needs OpenCore Patches/ x1c6-keyboard.plist

SSDT-PTSWAK

• Comprehensive sleep/wake patch.
  Needs OpenCore Patches/ PTSWAK.plist

Look up _PTS and _WAK in source DSDT and confirm the following, modify if different:
_PTS is NotSerialized in my DSDT
_WAK is Serialized in my DSDT

SSDT-EXT1-FixShutdown

• PTSWAK extension patch. Fixes reboot after shutdown.

SSDT-EXT3-LedReset-TP

• PTSWAK extension patch. Solve the problem that the breathing light does not return to normal after the TP machine wakes up.

SSDT-EXT4-WakeScreen

• PTSWAK extension patch. Solve the problem that some machines need to press any key to light up the screen after waking up. When using, you should inquire whether the PNP0C0D device name and path already exist in the patch file, such as_SB.PCI0.LPCB.LID0. If not, add it yourself.

SSDT-SBUS

Why?: 0x001F0004 under Device (SBUS).

SSDT-DMAC

Why?: PNP0200 is missing in DSDT.

SSDT-MCHC

Why?: MCHC is missing in DSDT.

SSDT-PMCR

Why?: PMCR,APP9876 missing in DSDT.

SSDT-PWRB

Why?: PNP0C0C missing in DSDT.

SSDT-ALS0

Starting with Catalina, an ambient light sensor device is required for brightness preservation. This patch fakes an ambient light sensor device ALS0 since the x1c6 does not have one.
Why?: ACPI0008 missing in DSDT.

SSDT-GPRW

Why?: Fix instant wake by hooking GPRW (0D/6D Patch)

Special thanks to [daliansky](https://github.com/daliansky).