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#1 2021-05-02 05:43:09

hiraki01
Member
Registered: 2021-03-08
Posts: 4

Trackpad not working on ThinkPad T14 AMD after shutdown

Hello everyone,
I am encountering an issue that causes my trackpad to freeze after I shutdown and boot up again from Arch, although it is still working fine in Windows. However, when I boot Arch after having shutdown my laptop from Windows, the trackpad works again flawlessly. My trackpoint and external USB mouse are still working fine.
The freeze happens right after I start GDM (since I use GNOME). Starting any other window manager or DM doesn't help at all. Both Xorg and Wayland suffer from the same symptom.
The trackpad is still showing in libinput:

Device:           SynPS/2 Synaptics TouchPad
Kernel:           /dev/input/event11
Group:            9
Seat:             seat0, default
Size:             100x68mm
Capabilities:     pointer gesture
Tap-to-click:     disabled
Tap-and-drag:     enabled
Tap drag lock:    disabled
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   *two-finger edge 
Click methods:    *button-areas clickfinger 
Disable-w-typing: enabled
Accel profiles:   flat *adaptive
Rotation:         n/a

I also tried upgrading the system as well as adding i8042.kbdreset=1 to /etc/default/grub but it still not working.
I installed Manjaro (just to check) and this issue is still happening there.

The specs of my laptop:

Model: ThinkPad T14 AMD 20UD0001CD
CPU: AMD Ryzen 5 PRO 4650U
Kernel: 5.11.6
BIOS: R1BET61W (1.30), 2020-12-21

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#2 2021-05-11 18:47:18

drishal
Member
Registered: 2020-10-25
Posts: 18

Re: Trackpad not working on ThinkPad T14 AMD after shutdown

similar issue with my (Thinkpad) P14s, but slightly different way to replicate it:
1. shutdown the laptop, wait for a few mins
2. start it up again
the touchpad COMPLETELY stops working, even in the BIOS Itself after rebooting it to the BIOS
but if I again power down completely and then start it up the touchpad begins to work again
idk what is happening here

Last edited by drishal (2021-05-11 18:48:00)

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#3 2021-12-22 10:06:54

firewalker
Member
From: Hellas (Greece).
Registered: 2006-06-05
Posts: 552

Re: Trackpad not working on ThinkPad T14 AMD after shutdown

I have a similar problem with my ThinkPad T14 AMD 20UD0001CD. The touchpad stops working and the only way to restore it is completely shutdown the machine. The trackpoint works just fine.

Was anyone able to locate the issue?


Γίνε ρεαλιστής, μείνε ονειροπόλος ...

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#4 2021-12-26 14:43:22

ikovnatsky
Member
Registered: 2021-04-01
Posts: 1

Re: Trackpad not working on ThinkPad T14 AMD after shutdown

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