Excellent, thanks! Upstream have proposed a fix 42 minutes ago :)
https://gitlab.freedesktop.org/libinput/libinput/merge_requests/116 ** Changed in: libinput (Ubuntu) Status: Incomplete => Triaged ** Changed in: libinput (Ubuntu) Importance: Undecided => Medium ** Description changed: + https://gitlab.freedesktop.org/libinput/libinput/issues/158 + + --- + 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 - --- + --- 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] + 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 + 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 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/1796928 Title: Fast Double-tap Treated as Single Click To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1796928/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
