Enable I2C Trackpad (VoodooI2C) - Not a Guide... not really

[hynrik]

if it isn't i2c, what kext Should i use?

[onemanosx]

[ref]hynrik[/ref], I am guessing its a synaptic device. I have a few suggestions

1. Update Bios.

2. Try booting without I2C kexts and use only voodoops2controllerkext.

3. Or use VoodooI2cSynaptic kext with voodooI2C kexts

Try to get more infos from Windows find out its device id etc

[juanvascas]

Hi I am trying to get an SSDT for my I2C HID to work on interrupt mode; however I am not really experienced and my case is a little different because the DSDT is kinda messed up compared to yours. So this is my debug file and the dsl that does not compile because if the premature end of file error. Hope you can have a look at it.

debug_5384.zip

SSDT-I2C.zip

[onemanosx]

[ref]juanvascas[/ref], DSDT does not matter if you are using ssdt method to patch. I assume your trackpad is working in polling mode?

I am not on my mac right now. So, I am not able to view your debug files.

[juanvascas]

Hi and thanks for helping, yes it is working in polling mode according to the kernel log. I want to get it in interrupt mode because the cursor jumps / lags when on battery my laptop and it may be because intel cpus do not work as hard as when plugged in.

[onemanosx]

[ref]juanvascas[/ref], do you also have gpio ssdt? Dump a full runme files. I'll take a look later when I am on my mac

[juanvascas]

I am to be not sure of the gpis SSDT but I assume you refer to the GPIO pinning of the trackpad and it is on the I2C SSDTs that almost compile, with the sbfg and the _csr method with sbfb. I used black dragon debug script for problem reporting so I guess all important files are there?

Thanks you onemanosx!

[onemanosx]

[ref]juanvascas[/ref], yah, I'll take a look later. Hv you experimented with a different batterymanager kext? I hv read smcbattery works better.

[juanvascas]

Haven't heard of smcbattery kext I am using ACPIBatteryManager. Could't find on google the smcbattery so where should I get it to try it? Also do you think it could be the reason of the mouse lag when my laptop is on battery?

[onemanosx]

[ref]juanvascas[/ref], google for virtualsmc. Its an alternative for fakesmc.

[juanvascas]

I am currently using it and the issue of the cursor lag may have disappeared I think. My battery doesn't drop from 100% after like 5mins so I might have to work with that later but it seem better for me at the moment.

There is a margin from 4% to 6% difference between macOS and HWMonitor so I guess I will fully try it on like 2 days to see which one is correct as I have am exam in 2 days.

Thanks for the tip on using VirtualSMC!

Also do you know of any keyboard kext for laptop that is currently updated? Not sure if RehabMan VoodooPS2Controller is still being updated and that is the one I am using. Deleted some plugins from it to try so it doesn’t do anything with the trackpad but I am not sure if it was done properly.

[onemanosx]

[ref]juanvascas[/ref], glad its an improvement! I still use voodoops2 for its keyboard function and deleted its mouse/trackpad plugins with no issues.

[juanvascas]

I did the same so I guess I won’t have any issues!

[onemanosx]

[ref]juanvascas[/ref], I'll take a look at your debug files later. But my bet is the ssdt defines your I2C device in interrupt mode. Just use it for a few days and feedback of any changes.

[juanvascas]

My main issue with the SSDT is that it won’t compile however, I think it almost ready so take a look when you can no hurries so don’t worry.

[onemanosx]

[ref]juanvascas[/ref], use the latest maciasl here https://github.com/acidanthera/MaciASL

[juanvascas]

I think I was using the one mentioned on the VoodooI2C installation but will try it maybe tomorrow or the next day. I do remember the structure seemed fine but I was still missing something because I was getting premature end of file error when compiling.

[onemanosx]

[ref]juanvascas[/ref], Your ioreg shows your trackpad with working GPIO and TPD1 device. And there is no compile error on SSDT-I2C.aml

https://imgur.com/Jla94P2

[juanvascas]

Hi I am trying to get an SSDT for my I2C HID to work on interrupt mode; however I am not really experienced and my case is a little different because the DSDT is kinda messed up compared to yours. So this is my debug file and the dsl that does not compile because if the premature end of file error. Hope you can have a look at it.

I was trying to compile the SSDT-I2C.dsl attached directly to this post and now that you say it is working it makes me wonder why on the kernel log says it is working on polling mode.

[onemanosx]

[ref]juanvascas[/ref], Try these files

 

Archive.zip

[juanvascas]

I still shows like the GPIO patch has not been applied and that the pin is incorrect. I have thought it would be better to patch the DSDT directly but it is not compiling without error either lol. From my origin DSDT I applied the patch right before common patches section of this post: https://www.tonycrapx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/

And then I was getting an error which needed this solution: https://www.tonycrapx86.com/threads/guide-patching-laptop-dsdt-ssdts.152573/page-284#post-1765232

No luck still...Getting parseop_integer error

DSDT.dsl.zip

[onemanosx]

[ref]juanvascas[/ref], here you go DSDT.dsl.zip.

[juanvascas]

I am not home right now and may not be able to apply the SSDT patches on the DSDT as I have a final exam tomorrow but I am curious on how you managed to make it compile with no errors.

I will try patching it tomorrow, thanks for all the useful help!

[juanvascas]

I think I have finally got it working patching the DSDT. It may be a lot of work to get all SSDT patches to the DSDT so I may rely on hotpatches. I am unsure how to create a proper SSDT out of the DSDT to enable the I2C. Can you help me get it?

Oh I also applied the Windows 10 patch from the VoodooI2C repo in case it has to be added to the SSDT as well.

DSDT.zip

[onemanosx]

[ref]juanvascas[/ref], you can use my previous I2C ssdt as a template and test it for yourself. windows 10 patch is done by osi to xosi patch and xosi-ssdt.