VoodooI2C Help and Support

[ben9923]

Hey everyone, I'm trying to make my touchpad work but can't seem to work out how. (Kabylake)

The problem I face is that the device that is shown in Windows (and IOReg) is "TPDX" which has _CRS, _STA, etc. methods and everything but they look nothing like the examples (and other people's devices). They use a name "RBUF" but no "SFBG", etc. Oddly enough, there IS another device in my DSDT called "TPD0" which looks like all the devices you can see in this thread / examples, BUT it is not shown in Windows and IOReg. Furthermore, when I don't load the VoodooI2C drivers, there is no "IOInterruptSpecifiers" list for TDPX so there is no APIC PIN number to check.

As I wanted to first try out polling I have only patched my DSDT with the Windows 10 Patch and nothing else yet.
TDPX's _CRS looks nothing like in the examples, so I can't just write "Return (ConcatenateResTemplate (SBFB, SBFI))" to make polling work.

Can anyone point me into the right direction here?

You should not have both Windows 2015 DSDT patch and SSDT-XOSI. Undo the patch.
Remove VoodooI2C.kext + VoodooI2CHID.kext, then re-install. Make sure you're using latest release of both.

H_EC -> EC patch should be enabled in your config.plist.
Use ApfsDriverLoader-64.efi instead of apfs.efi.
DataHubDxe-64.efi can probably be removed. You can try omitting it.
You should use HFSPlus.efi instead of VBoxHfs-64.efi:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/
What is HashServiceFix-64.efi? Is that necessary?
In most cases you can use AptioMemoryFix-64.efi instead of OsxAptioFix2Drv-64.efi.

 

[Techguardian]

will please someone help me patch voodoi2c with dsdt i dnt want to patch anything related to ssd just my trackpad touchpad is not working thats it keyboard is also working i tried every possible kext ps2 controller i2c elan
i tried every possible text still not working please help if possible guys

 

[dvbgr]

Can anyone take a look on my debug file? Trying to figure out whether its an ELAN or Synaptics device so I can proceed.
Thanks in advance

 

[Feartech]

Can anyone take a look on my debug file? Trying to figure out whether its an ELAN or Synaptics device so I can proceed.
Thanks in advance

you can verify in windows as to what your device is

 

[dvbgr]

On windows it says Synaptics but the developer of the EFI file pack for xiaomi 13 6200u says it is elan but I doubt.

 

[natherox]

Your _CRS method is not patched correctly. It should contain this:

Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFI))

When GPIO interrupts will be supported in CFL, you may use this instead:

Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFG))

Such new hardware DSDTs are not yet covered in the patching guide.

I tried changing the _CRS method as you suggested to Razeriste, but still no luck.

 

[Razeriste]

Your _CRS method is not patched correctly. It should contain this:

Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFI))

When GPIO interrupts will be supported in CFL, you may use this instead:

Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFG))

Such new hardware DSDTs are not yet covered in the patching guide.

Hi! How do I change that? When I look in my DSDT file "Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFI)" appears 4 times after "Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFG)").

Do I have to delete the 4 "Return (ConcatenateResTemplate (I2CM (I2CX, BADR, SPED), SBFG)" lines that appear?

 

[stregara]

You should not have both Windows 2015 DSDT patch and SSDT-XOSI. Undo the patch.
Remove VoodooI2C.kext + VoodooI2CHID.kext, then re-install. Make sure you're using latest release of both.

H_EC -> EC patch should be enabled in your config.plist.
Use ApfsDriverLoader-64.efi instead of apfs.efi.
DataHubDxe-64.efi can probably be removed. You can try omitting it.
You should use HFSPlus.efi instead of VBoxHfs-64.efi:
https://www.tonymacx86.com/threads/guide-booting-the-os-x-installer-on-laptops-with-clover.148093/
What is HashServiceFix-64.efi? Is that necessary?
In most cases you can use AptioMemoryFix-64.efi instead of OsxAptioFix2Drv-64.efi.

Thanks a ton for your help!

Had both Windows 2015 patch + hot patch in there just in case, but I removed the patch now.
I updated Clover, VoodooI2C.kext + VoodooI2CHID.kext, replaced/removed the drivers (ApfsDriverLoader-64, etc.) as you suggested but still nothing : /

 

[talebabatto]

Hello guys, I just want to let you know that in this GitHub repo influenist made the synaptic touchpad work as a trackpad.
All the gestures work at 90% (there is indeed a pressure issue sometimes). In this EFI only for the Xiaomi Air 12.5 with the Kabylake-CPU there is a kext named VoodooI2CSynaptics that made the job in addition with the DSDT patches provided on the voodooI2C official repo.
The only issue I am facing at the moment in daily usage is that the trackpad won't work after sleep if I put the laptop to sleep by closing the lid. If I use the menu option "Sleep" the trackpad works even after the wake up.
Maybe this could be a good starting point for developers in order to enable the trackpad on synaptic devices I2C controlled.

 

[talebabatto]

You need VoodooI2C.kext, the satellite kext required for you device and VoodooI2CSynaptics.kext. VoodooPS2Controller is for the keyboard.