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Hello,
I just performed a system update and suddenly my touchpad is no longer recognized by Libinput. I own a second-generation ThinkPad Z13. The trackpoint is now serving as a temporary solution. Does anyone know what to do?
"sudo libinput list-devices | grep Device" found alot but not my touchpad anymore.
"journal -b -p err" says:
Mär 18 14:04:59 thinkpadz13gen2 kernel: hid-generic 0018:2C2F:0028.0002: unbalanced collection at end of report description
Mär 18 14:04:59 thinkpadz13gen2 kernel: hid-multitouch 0018:2C2F:0028.0002: unbalanced collection at end of report description
Mär 18 14:04:59 thinkpadz13gen2 dhcpcd[772]: no valid interfaces found
Mär 18 14:05:04 thinkpadz13gen2 wpa_supplicant[1218]: bgscan simple: Failed to enable signal strength monitoring
Mär 18 14:09:09 thinkpadz13gen2 wpa_supplicant[1218]: bgscan simple: Failed to enable signal strength monitoring
Mär 18 14:11:31 thinkpadz13gen2 wpa_supplicant[1218]: bgscan simple: Failed to enable signal strength monitoring
Mär 18 14:13:08 thinkpadz13gen2 wpa_supplicant[1218]: bgscan simple: Failed to enable signal strength monitoringThe first line shows my touchpad ... :-/
The Bug comes with Linux 6.8. On the LTS Kernel everything is fine.
BAD SOLUTION:
Reload the Driver manually until the Trackpad works again.
In my case:
sudo modprobe --remove i2c_hid_acpi
sudo modprobe i2c_hid_acpi Last edited by Lax Lexis (2024-04-16 13:25:55)
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I have the same issue with the same laptop (Z13 G2), everything is up to date.
$ journalctl -b -p errMar 20 11:49:26 z13 kernel: i2c_designware AMDI0010:02: i2c_dw_handle_tx_abort: lost arbitration
Mar 20 11:49:27 z13 kernel: usb 5-1.4: 1:1: cannot get freq at ep 0x81
Mar 20 11:49:27 z13 kernel: hid-generic 0018:2C2F:0028.0007: unbalanced collection at end of report description
Mar 20 11:49:27 z13 kernel: hid-multitouch 0018:2C2F:0028.0007: unbalanced collection at end of report description
Mar 20 11:49:27 z13 kernel: usb 5-1.4: 2:1: cannot get freq at ep 0x2
Mar 20 11:49:31 z13 dbus-broker-launch[790]: Ignoring duplicate name 'org.freedesktop.FileManager1' in service file '/usr/share/dbus-1/services/org.freedesktop.FileManager1.service'
Mar 20 11:49:32 z13 kernel: usb 5-1.4: 2:1: cannot get freq at ep 0x2Last edited by bpierre (2024-03-20 11:55:07)
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You can do following:
1) Go back to the LTS Kernel
2) Reload the Driver manually until the Trackpad works again.
In my case:
sudo modprobe --remove i2c_hid_acpi
sudo modprobe i2c_hid_acpi Bug still exist in Linux 6.8.5.
Last edited by Lax Lexis (2024-04-16 13:25:17)
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Bug still exist in Linux 6.8.5.
Is the issue still present in linux-mainline 6.9-rc4? Also available prebuilt from miffe. If so have you considered bisecting between 6.7 and 6.8? Is there an upstream bug report for the issue?
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Is the issue still present in linux-mainline 6.9-rc4?
Yes, it is present on 6.9-rc4, too. :-(
Is there an upstream bug report for the issue?
I don't know.
The bug is reported by some ohters.
https://bugzilla.redhat.com/show_bug.cgi?id=2271136
And it is descripted on the Arch Wiki too.
https://wiki.archlinux.org/title/Lenovo … _Z16_Gen_2
The Z16 Gen2 has the same issue like the Z13 Gen2.
Last edited by Lax Lexis (2024-04-18 11:12:45)
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Have you tried the fix from the report you linked? I built 6.8.7-arch1-1 with it applied if it helps:
https://drive.google.com/file/d/1-nQ1qT … sp=sharing linux-6.8.7.arch1-1.1-x86_64.pkg.tar.zst
https://drive.google.com/file/d/1MFHE7h … sp=sharing linux-headers-6.8.7.arch1-1.1-x86_64.pkg.tar.zst
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