https://gitlab.freedesktop.org/libinput/libinput/issues/158
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Fast double-taps get treated as a single click.
Behavior is present in Ubuntu 18.04 (libinput 1.10.4-1) but not in 17.10 (libinput 1.8.2-1ubuntu2). Still present in 18.10 daily downloaded 2018.10.08 (libinput 1.12.0-1).
I think this is similar to https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1762536 with different hardware.
I'm trying to run Ubuntu 18.04 in a VMware Fusion guest on a Macbook host. If I double-tap the trackpad fast, it gets treated as a single-click in Ubuntu. If I double-tap slow (but not too slow) it gets treated as a double-click. Hitting the narrow window is hard! This makes it tough to run X in a VM on a Macbook.
I suspect that the host hardware+software delivers a synthesized double-click to the guest, and that the time between the clicks is very small.
evemu-record shows two "VirtualPS/2 VMware Virtual Mouse" devices and a "VMware VMware Virtual USB Mouse". Capture of the first of these is attached. It looks to me like the second tap comes 8 ms after the first, and I'm betting that is treated as bounce.
Bug report also created at https://bugs.freedesktop.org/show_bug.cgi?id=108306
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ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
DistUpgraded: Fresh install
DistroCodename: bionic
DistroRelease: Ubuntu 18.04
DistroVariant: ubuntu
GraphicsCard:
VMware SVGA II Adapter [15ad:0405] (prog-if 00 [VGA controller])
Subsystem: VMware SVGA II Adapter [15ad:0405]
InstallationDate: Installed on 2018-10-09 (1 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: VMware, Inc. VMware Virtual Platform
Package: libinput (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic root=UUID=a0e790b4-4632-4de9-aa52-4dff4fc9fe4f ro find_preseed=/preseed.cfg auto noprompt priority=critical locale=en_US quiet
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Tags: bionic ubuntu
Uname: Linux 4.15.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/19/2017
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd05/19/2017:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
Please:
1. Run 'apport-collect 1796928' on the affected machine.
2. Log the upstream bug in the new tracker: https:/