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sometimes elan trackpad "slow down"

Open kekkokk opened this issue 5 years ago • 4 comments

Hi, I'm using this kext since day 1 and it works flawlessly. but even since there's a little problem I can't figure it out:

sometimes the trackpad slow down and the cursor is more like "smooth and delayed" than "precise". This lasts few seconds ~30 and then everything goes back to normal.

This happened in Catalina + clover and in current Big Sur + OC.

Any idea on what might be going on? Tried to disable several kext without success.

Also, seems happening more when plugging the thinkpad to charge it.

ps. using a Thinkpad T480s

maybe @leo-labs can help there

kekkokk avatar Mar 03 '21 08:03 kekkokk

That is very interesting. I myself still use Clover + Mojave and do not have this problem.

@1Revenger1 Have you ever seen similar issues?

leo-labs avatar Mar 03 '21 14:03 leo-labs

Hi, I’m using it with OC + Big Sur without having any issue. ( T480s)

gokula avatar Mar 03 '21 15:03 gokula

That is very interesting. I myself still use Clover + Mojave and do not have this problem.

@1Revenger1 Have you ever seen similar issues?

No I have not. I have seen cases where VoodooInput can have issues due to ACPIBatteryManager since it'll check the battery status every time it checks status, and that can have a sleep within the _STA acpi method. I'm not sure if something like that would effect VoodooSMBus though since it doesn't use VoodooInput.

My guess is that it's something funky with timing/scheduling but I wouldn't even know where to start to figure out what the issue is.

averycblack avatar Mar 03 '21 17:03 averycblack

I never opened an issue 'cause I wanted to be more helpful in the debugging process but it's so random that I have not found any pattern.

I'll try to be more precise if I notice something. Do you guys (I know it's seems awkward) that a 45W charger instead 65W can cause this issue?

kekkokk avatar Mar 04 '21 17:03 kekkokk