two-finger scrolling fails with AlpsPS/2 ALPS DualPoint Touchpad
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
After using the touchpad for a while, it suddenly believes that I'm doing a two-finger scroll, when I'm not. It makes the touchpad unusable : it's not possible to move the mouse anymore, vertical scrolling happens instead. I could not find an action that reliably gets me out of this mode (except reboot !).
My workaround for now is to disable two-finger scrolling in "Config / Devices / Mouse & Touchpad", and enable "Edge scrolling" instead.
I'm using Ubuntu 19.04 (Ubuntu 5.0.0-21.22-generic 5.0.15)
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.0.0-21-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 1 10:52:38 2019
InstallationDate: Installed on 2019-07-12 (19 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
MachineType: HP HP ZBook 15 G5
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.178.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/03/2019
dmi.bios.vendor: HP
dmi.bios.version: Q70 Ver. 01.07.01
dmi.board.name: 842A
dmi.board.vendor: HP
dmi.board.version: KBC Version 15.37.02
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.modalias: dmi:bvnHP:
dmi.product.family: 103C_5336AN HP ZBook 15
dmi.product.name: HP ZBook 15 G5
dmi.product.sku: 3AX13AV
dmi.sys.vendor: HP
Here is the output of xinput list:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Logitech Optical USB Mouse id=11 [slave pointer (2)]
⎜ ↳ ALP001F:00 044E:1222 Mouse id=14 [slave pointer (2)]
⎜ ↳ ALP001F:00 044E:1222 Touchpad id=15 [slave pointer (2)]
⎜ ↳ AlpsPS/2 ALPS DualPoint TouchPad id=18 [slave pointer (2)]
⎜ ↳ AlpsPS/2 ALPS DualPoint Stick id=19 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ Power Button id=9 [slave keyboard (3)]
↳ Sleep Button id=10 [slave keyboard (3)]
↳ HP HD Camera: HP HD Camera id=12 [slave keyboard (3)]
↳ HP HD Camera: HP IR Camera id=13 [slave keyboard (3)]
↳ ALP001F:00 044E:1222 UNKNOWN id=16 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=17 [slave keyboard (3)]
↳ HP Wireless hotkeys id=20 [slave keyboard (3)]
↳ HP WMI hotkeys id=21 [slave keyboard (3)]
(The problem also happens without attaching the Logitech Optical USB mouse)