I've experienced the same issue on Ubuntu 19.04 and 18.04 (but on other Linux distributions like newest versions of debian or manjaro too - both Gnome and KDE). Nevertheless it's working fine on Windows 10.
Is there any known solution to this problem? It seems that the touchpad is a certified one according to https://certification.ubuntu.com/catalog/component/input/4932/input%3ADLL079F%3A01044E%3A120B/ I can supply my configuration if needed but to give an overview: Dell Latitude 7480 Kenel: 4.19.28 Dell BIOS: 1.14.1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1754052 Title: Dell Latitude 7480 press shift keys triggers random mouseclick when `Tap to click` enabled on touchpad. Status in linux package in Ubuntu: Invalid Bug description: In Ubuntu 16.04.3 and 17.10.1 holding down either shift key on a Dell Latitude 7480 causes random mouse clicks to occur without being nowhere near the touchpad with palms. No external mouse/keyboard connected. Disabling `Tap to click` in `Mouse & Touchpad` settings makes the problem go away. The problem is not present in 14.04.5, whether installed or live CD. How to reproduce: 1. On a Dell Latitude 7480 live boot (or install) one of the following images: - ubuntu-16.04.3-desktop-amd64.iso - ubuntu-17.10.1-desktop-amd64.iso 2. Open `Mouse & Touchpad` and make sure `Tap to click` is enabled. 3. Click `Test Your Settings` and make sure window has focus. 4. Hold down either shift key and after a few seconds single/double clicks start registering. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17 Uname: Linux 4.10.0-28-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 CasperVersion: 1.376.2 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed Mar 7 13:00:21 2018 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Device [8086:5916] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:07a0] LiveMediaBuild: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) MachineType: Dell Inc. Latitude 7480 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --- SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/30/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.8.2 dmi.board.name: 00F6D3 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.8.2:bd01/30/2018:svnDellInc.:pnLatitude7480:pvr:rvnDellInc.:rn00F6D3:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.name: Latitude 7480 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.1 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754052/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
