Public bug reported:
The touchpad works correctly in Windows but is not detected as an input
device in Ubuntu 24.04.4.
Laptop: Lenovo ThinkBook 14-IML, type 20RV
BIOS: CJCN41WW
ACPI device: ELAN0632:00, status 15
Driver: elan_i2c loads and probes the device, but no touchpad entry appears in
/proc/bus/input/devices.
Tested kernels:
6.8.0-138-generic
7.0.0-30-generic
Reloading elan_i2c did not help. The generic i2c_hid_acpi driver did not
bind.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-7.0.0-30-generic 7.0.0-30.30~24.04.1
ProcVersionSignature: Ubuntu 7.0.0-30.30~24.04.1-generic 7.0.12
Uname: Linux 7.0.0-30-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Aug 26 18:43:37 2026
InstallationDate: Installed on 2026-08-26 (0 days ago)
InstallationMedia: Ubuntu 24.04.4 LTS "Noble Numbat" - Release amd64 (20260210)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: linux-signed-hwe-7.0
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-7.0 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2165136
Title:
ELAN0632 touchpad not initialized on Lenovo ThinkBook 14-IML (20RV)
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