Public bug reported:
Host system: Ubuntu 20.04.6 LTS
Problem:
After updates, booting kernel 5.4.0-227-generic causes the host mouse/touchpad
to freeze.
Booting 5.4.0-216-generic restores normal mouse operation.
Expected result:
Mouse/touchpad should work on 5.4.0-227-generic.
Actual result:
Mouse/touchpad is frozen on 5.4.0-227-generic.
Mouse/touchpad works on 5.4.0-216-generic.
Steps to reproduce:
1. Boot Ubuntu with kernel 5.4.0-227-generic
2. Log in
3. Mouse/touchpad does not work
Workaround:
Boot kernel 5.4.0-216-generic from GRUB advanced options or set it as default.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-216-generic 5.4.0-216.236
ProcVersionSignature: Ubuntu 5.4.0-216.236-generic 5.4.291
Uname: Linux 5.4.0-216-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.31
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mentalmystics 2245 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 18 19:52:33 2026
InstallationDate: Installed on 2022-07-04 (1353 days ago)
InstallationMedia: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64 (20210915)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f2:b5f7 Chicony Electronics Co., Ltd HD WebCam
Bus 001 Device 002: ID 04ca:3015 Lite-On Technology Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Acer Aspire A515-51G
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-216-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-216-generic N/A
linux-backports-modules-5.4.0-216-generic N/A
linux-firmware 1.187.39
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2022-07-12 (1345 days ago)
dmi.bios.date: 11/08/2017
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.13
dmi.board.asset.tag: Type2 - Board Serial Number
dmi.board.name: Charmander_KL
dmi.board.vendor: KBL
dmi.board.version: V1.13
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.13
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.13:bd11/08/2017:svnAcer:pnAspireA515-51G:pvrV1.13:rvnKBL:rnCharmander_KL:rvrV1.13:cvnAcer:ct10:cvrV1.13:
dmi.product.family: Aspire 5
dmi.product.name: Aspire A515-51G
dmi.product.sku: 0000000000000000
dmi.product.version: V1.13
dmi.sys.vendor: Acer
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal third-party-packages
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https://bugs.launchpad.net/bugs/2144846
Title:
5.4.0-227-generic freezes mouse/touchpad on host; 5.4.0-216-generic
works
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