Add VoodooSMBus Maybe?

[khokho]

Hello,
I'm super new to hackintosh but I somehow managed to boot it up on my t480. I found you repo a bit too late but it's really a blessing. 💯 👍
I found this kext: https://github.com/VoodooSMBus/VoodooSMBus which I tried to install but could figure out the .patch files and messed up the boot. So I'm just suggesting you to maybe try it.

[khokho]

The problem with current setup is when I have one finger in the middle of touchpad and I touch another one on left bottom corner, while releasing the on in the middle, the cursor jumps around. And it really drives on my nerves 😄
And I hope I'll be fixed in VoodooSMBus

[EETagent]

@khokho Thanks, it looks really interesting.

00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 21)

T480 should be supported as its shares same SMBus with supported T480s.
I will look at it tomorrow or the day after tomorrow. PM981 is still giant mess and really unstable. I moved my ThinkPad to Fedora temporary because of that. As soon as I get Catalina on external drive again ( There are problems with sleep when running from USB drive. Does sleep work for you? ) and edit readme.

[khokho]

Thank you. I have 8086:9d23 as well.

Sleep works fine for me but I'm running on internal drive. So I can't help you with that one.

Only other problem I have is headphone jack start sounding weird at random times.
I found this repo which mentions jack issues which I'm gonna try out.
https://github.com/tienhuynh5312/ThinkPad-T480-Hackintosh

[khokho]

^ jack audio got fixed with above repo. But instead of running his provided "read and write.app", I executed:
sudo mount -uw /
then ./install.sh and reboot.

[EETagent]

@khokho When you tried installing that kext, did you compiled the latest version? Support for OpenCore has been recently added. Last official release is from October 2019, that's a long time.

VoodooSMBus.kext.zip

[khokho]

Oh, I see. Didn't notice that...
I'll try again when I have free time

[khokho]

52a310a fixed my jumpy trackpad. All the gestures also seem to be much better! I also turned on the Tap to drag in accessibility and it's working like a charm.

[EETagent]

It is absolutely awesome. I am not going to merge it now to the master though as there are still issues with TrackPoint ( New version could fix that ) and longer boot times ( What for you? )

[khokho]

I feel like trackpoint is also better now but I don't use it so I might be wrong.
And for boot time it feels the same. Booting from zero takes 17 seconds til opencore(which is a lot compared to linux bootloaders) and 37 seconds to login screen. But I think It was kind of same without VoodooSMBus. I'll test it soon.

[EETagent]

17 seconds until OC boot screen are really long. 8-6 seconds are more normal

For me, macOS sometimes boot really fast from OC boot menu, sometimes quite long.

[danny7g]

I opened an issue to discuss this and closed - sorry I missed this originally.

I separately tested VoodooRMI and, yes, it's great. There are a few timeout errors in the Verbose Bootlog causing extended boot time. I think it relates to the trackpad instructions in SSDT-KBRD-TP.aml in the ACPI folder.

I've just tested this out within the last 30 minutes, so hopefully I'll be able to chase down the exact issue this weekend.