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Message #07044
[Bug 2122588] Re: Touchpad does not work on Dell 16 Premium DA16250
** Also affects: libinput (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2122588
Title:
Touchpad does not work on Dell 16 Premium DA16250
Status in Ubuntu:
New
Status in libinput package in Ubuntu:
New
Bug description:
This is a fresh installation of Ubuntu 24.04.3 LTS but the behavior is
the same on a fresh install of Ubuntu 25.04 and on the daily snapshot
of 25.10 as well.
The machine is equipped with a keyboard (with touch-sensitive rows), a
4K touchscreen and a touchpad. The keyboard and the touchscreen work
perfectly, but the touchpad does not move the mouse in any direction.
Clicks are working.
The device of the touchpad appears to be /dev/input/event8 based on
the libinput list-devices output.
libinput only outputs the DEVICE_ADDED event, and then the movements
or clicks do not generate any more output
sudo libinput debug-events --device /dev/input/event8
-event8 DEVICE_ADDED VEN_0488:00 0488:108D Touchpad seat0 default group1 cap:pg size 145x87mm tap(dl off) left scroll-nat scroll-2fg-edge click-buttonareas-clickfinger dwt-on dwtp-on
But using evtest, I can see events as I move my hand on the touchpad:
sudo evtest /dev/input/event8
Input driver version is 1.0.1
Input device ID: bus 0x18 vendor 0x488 product 0x108d version 0x100
Input device name: "VEN_0488:00 0488:108D Touchpad"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
(... truncated to insert in this report ...)
Properties:
Property type 0 (INPUT_PROP_POINTER)
Property type 2 (INPUT_PROP_BUTTONPAD)
Testing ... (interrupt to exit)
Event: time 1757588426.475138, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 593
Event: time 1757588426.475138, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1770
Event: time 1757588426.475138, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 978
Event: time 1757588426.475138, type 3 (EV_ABS), code 58 (ABS_MT_PRESSURE), value 0
Event: time 1757588426.475138, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1757588426.475138, type 1 (EV_KEY), code 325 (BTN_TOOL_FINGER), value 1
Event: time 1757588426.475138, type 3 (EV_ABS), code 0 (ABS_X), value 1770
Event: time 1757588426.475138, type 3 (EV_ABS), code 1 (ABS_Y), value 978
Event: time 1757588426.475138, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 0
Event: time 1757588426.475138, -------------- SYN_REPORT ------------
Event: time 1757588426.482292, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 6500
Event: time 1757588426.482292, -------------- SYN_REPORT ------------
Event: time 1757588426.488904, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1769
Event: time 1757588426.488904, type 3 (EV_ABS), code 0 (ABS_X), value 1769
Event: time 1757588426.488904, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 13000
Event: time 1757588426.488904, -------------- SYN_REPORT ------------
Event: time 1757588426.494318, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 19500
Event: time 1757588426.494318, -------------- SYN_REPORT ------------
Event: time 1757588426.503454, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1767
Event: time 1757588426.503454, type 3 (EV_ABS), code 0 (ABS_X), value 1767
Event: time 1757588426.503454, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 26000
Event: time 1757588426.503454, -------------- SYN_REPORT ------------
Event: time 1757588426.510051, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1765
Event: time 1757588426.510051, type 3 (EV_ABS), code 58 (ABS_MT_PRESSURE), value 3
Event: time 1757588426.510051, type 3 (EV_ABS), code 0 (ABS_X), value 1765
Event: time 1757588426.510051, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 3
Event: time 1757588426.510051, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 32500
Event: time 1757588426.510051, -------------- SYN_REPORT ------------
Event: time 1757588426.515442, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1764
Event: time 1757588426.515442, type 3 (EV_ABS), code 0 (ABS_X), value 1764
Event: time 1757588426.515442, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 39000
Event: time 1757588426.515442, -------------- SYN_REPORT ------------
Event: time 1757588426.522101, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1763
Event: time 1757588426.522101, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 979
Event: time 1757588426.522101, type 3 (EV_ABS), code 0 (ABS_X), value 1763
Event: time 1757588426.522101, type 3 (EV_ABS), code 1 (ABS_Y), value 979
Event: time 1757588426.522101, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 45500
Event: time 1757588426.522101, -------------- SYN_REPORT ------------
Event: time 1757588426.527239, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1762
Event: time 1757588426.527239, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 980
Event: time 1757588426.527239, type 3 (EV_ABS), code 0 (ABS_X), value 1762
Event: time 1757588426.527239, type 3 (EV_ABS), code 1 (ABS_Y), value 980
Event: time 1757588426.527239, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 52000
Event: time 1757588426.527239, -------------- SYN_REPORT ------------
Event: time 1757588426.535975, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1760
Event: time 1757588426.535975, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 982
Event: time 1757588426.535975, type 3 (EV_ABS), code 0 (ABS_X), value 1760
Event: time 1757588426.535975, type 3 (EV_ABS), code 1 (ABS_Y), value 982
Event: time 1757588426.535975, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 58500
Event: time 1757588426.535975, -------------- SYN_REPORT ------------
... (truncated to insert in this report) ...
Even more interestingly, using sudo libinput debug-gui displays a blue
box with correctly detected multitouch points inside, very closely
following the real fingers
So the hardware is clearly working, and the information is available
in userspace, but it does not result in a mouse pointer actually
moving.
Can you please help me debugging why is this, so I can find a
workaround or even better fix this hardware compatibility issue in
Ubuntu? I'm happy to provide any logs, performs tests, installs, etc.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: libinput10 1.25.0-1ubuntu3.1
ProcVersionSignature: Ubuntu 6.14.0-29.29~24.04.1-generic 6.14.8
Uname: Linux 6.14.0-29-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 11 12:52:20 2025
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation Arrow Lake-P [Intel Graphics] [8086:7d51] (rev 03) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:0ce7]
InstallationDate: Installed on 2025-09-10 (0 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64 (20250805.1)
MachineType: Dell Inc. Dell 16 Premium DA16250
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.14.0-29-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
SourcePackage: libinput
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/19/2025
dmi.bios.release: 1.1
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.1
dmi.board.name: 02FVDJ
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.ec.firmware.release: 1.0
dmi.modalias: dmi:bvnDellInc.:bvr1.1.1:bd06/19/2025:br1.1:efr1.0:svnDellInc.:pnDell16PremiumDA16250:pvr:rvnDellInc.:rn02FVDJ:rvrA00:cvnDellInc.:ct10:cvr:sku0CE7:
dmi.product.family: Dell Laptops
dmi.product.name: Dell 16 Premium DA16250
dmi.product.sku: 0CE7
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 25.0.7-0ubuntu0.24.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2ubuntu0.1
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