Public bug reported:
With some help from Vibe
After upgrading from Ubuntu 24.04 to 26.04 LTS, my Mousetrapper Advanced++
(USB ID 0d24:000b, registers as 4 HID interfaces: Keyboard, Mouse,
Consumer Control, System Control) no longer moves the cursor in the
GNOME Wayland session.
Observed behavior:
- The device is detected normally (lsusb, kernel logs, hid-generic binds
all interfaces).
- `libinput debug-events` shows valid POINTER_MOTION / POINTER_BUTTON /
wheel events from the device.
- Other USB mice work correctly in the same session.
- The GNOME cursor simply does not respond to the Mousetrapper.
This matches a known upstream issue affecting Mousetrapper devices on
GNOME Wayland with systemd 259.4+:
- GNOME mutter issue #4764
- systemd issue #41614 (uevent entries with malformed properties,
e.g. trailing whitespace in HID_NAME, rejected by udev/sd-device;
devices then fail to bind in Wayland compositors)
- Red Hat Bugzilla #2455857 (Mousetrapper Advance 2.0, Fedora 43,
identical symptoms: "detected and generates libinput POINTER_MOTION
events, but GNOME Wayland cursor does not move")
- Fedora users confirmed downgrading systemd to 258.x restores the
device (discussion.fedoraproject.org/t/183563)
Ubuntu 26.04 ships systemd 259.5, which is in the affected range.
Requesting investigation and/or backport of the upstream fix into the
systemd/mutter packages for 26.04.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: systemd 259.5-0ubuntu3.4
ProcVersionSignature: Ubuntu 7.0.0-34.34-generic 7.0.14
Uname: Linux 7.0.0-34-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 1 19:13:58 2026
InstallationDate: Installed on 2025-11-07 (328 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: MM-Vision Computer
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-34-generic
root=UUID=ddf755bb-baea-4b14-81a9-ea7d38b87986 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: systemd
SystemdFailedUnits:
Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4:
Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use
systemd-escape?).
Unit \xe2\x97\x8f.service could not be found.
UpgradeStatus: Upgraded to resolute on 2026-09-30 (1 days ago)
dmi.bios.date: 07/09/2021
dmi.bios.release: 16.20
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1620
dmi.board.asset.tag: Default string
dmi.board.name: PRIME B460M-K
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1620:bd07/09/2021:br16.20:svnMM-Vision:pnComputer:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB460M-K:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:pfaTobefilledbyO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: Computer
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: MM-Vision
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Attachment added: "System info and log"
https://bugs.launchpad.net/bugs/2169189/+attachment/6004482/+files/buginfo.txt
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https://bugs.launchpad.net/bugs/2169189
Title:
Mousetrapper Advanced++ (0d24:000b) pointer not bound in GNOME Wayland
session after upgrade to 26.04 — libinput events generated but cursor
does not move
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