'Synaptics touchpad' not detected as an input device on 'Fujitsu LIFEBOOK U7411'

[Naman Kumar Bhalla]

Touchpad used to work fine initially but I recently realised that it's not responding at all, since I'm mostly working with an external mouse. Therefore, I'm not sure when this problem started or what really caused it.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.13.0-28-generic 5.13.0-28.31~20.04.1
ProcVersionSignature: Ubuntu 5.13.0-28.31~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-28-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 21 12:13:55 2022
InstallationDate: Installed on 2021-11-02 (111 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
SourcePackage: linux-signed-hwe-5.13
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alexander (aletschius)]

Hi this could be a issue of Fujitsu Laptops in general, i have propably the same problem just on a different laptop model.

I did issue a similar bug report, because it's a different model, but i think its definitely possible, that this bug is connected to the touchpad that Fujitsu uses in general respectively the manufacturer.

If you did find a fix, pleas tell me then i will try it on my model as well.

With best regards,
Alexander

[Alexander (aletschius)]

My bug report is this one:

https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.13/+bug/1963554

just for the sake of completeness.

[Naman Kumar Bhalla (nkbhalla)]

@aletschius For me, running:
“sudo modprobe i2c-hid-acpi”
on the terminal worked.

To avoid running this after every log-in, just add:
“i2c-hid-acpi”
in a new line to:
“/etc/modules”

[Alexander (aletschius)]

Thanks for that workaround “i2c-hid-acpi” definitely worked so after next reboot "/etc/modules" will work propably too.

Thanks again