Dell Latitude 7480 press shift keys triggers random mouseclick when `Tap to click` enabled on touchpad.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
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-
- ubuntu-
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
ProcVersionSign
Uname: Linux 4.10.0-28-generic x86_64
.tmp.unity_
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CasperVersion: 1.376.2
CompizPlugins: No value set for `/apps/
CompositorRunning: compiz
CompositorUnred
CompositorUnred
CurrentDesktop: Unity
Date: Wed Mar 7 13:00:21 2018
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingI
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_
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=
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.
dmi.product.name: Latitude 7480
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.76-
version.
version.
version.
version.
version.
version.
version.
version.
affects: | xorg (Ubuntu) → linux (Ubuntu) |
tags: | added: ubuntu-certified |
Changed in linux (Ubuntu): | |
status: | Invalid → Confirmed |
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