It looks like the touchpad model is only one digit away from this one: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1185
** No longer affects: ubuntu ** Bug watch added: gitlab.freedesktop.org/libinput/libinput/-/issues #1185 https://gitlab.freedesktop.org/libinput/libinput/-/issues/1185 ** Changed in: libinput (Ubuntu) Importance: Undecided => High ** Changed in: libinput (Ubuntu) Status: New => Triaged ** Tags added: plucky questing -- You received this bug notification because you are a member of Debcrafters packages, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/2122588 Title: Touchpad does not work on Dell 16 Premium DA16250 Status in libinput package in Ubuntu: Triaged 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/2122588/+subscriptions -- Mailing list: https://launchpad.net/~debcrafters-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~debcrafters-packages More help : https://help.launchpad.net/ListHelp
