Public bug reported:
Some laptop touchpads are annoyingly unresponsive when the software
implements any kind of hysteresis. This includes Lenovo X1 Carbon gen 4
and 5. Such devices have lower precision and higher lag in the touchpad
hardware than you might expect, so need the software to not slow them
down further.
The problem now is that using libinput by default slows down all
touchpads and makes them less precise. For hardware that was already
unresponsive, introducing software that further reduces the
responsiveness is very frustrating, borderline unusable.
When we were using Xorg the simple solution was to adjust hysteresis
with 'synclient'. However now we're using Wayland we're stuck with
libinput and I don't know how to fix it any more. Even Xorg logins don't
seem to use libinput now, so there's no 'synclient' workaround available
there anymore either.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: libinput10 1.6.3-1ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15
Uname: Linux 4.10.0-22-generic x86_64
ApportVersion: 2.20.5-0ubuntu4
Architecture: amd64
Date: Fri Jun 9 14:52:18 2017
InstallationDate: Installed on 2017-06-08 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170607)
SourcePackage: libinput
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: libinput
Importance: Unknown
Status: Unknown
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Affects: libinput (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful
** Bug watch added: freedesktop.org Bugzilla #98839
https://bugs.freedesktop.org/show_bug.cgi?id=98839
** Also affects: libinput via
https://bugs.freedesktop.org/show_bug.cgi?id=98839
Importance: Unknown
Status: Unknown
** Description changed:
Some laptop touchpads are annoyingly unresponsive when the software
- implements any kind of hysteresis. This include Lenovo X1 Carbon gen 4
+ implements any kind of hysteresis. This includes Lenovo X1 Carbon gen 4
and 5. Such devices have lower precision and higher lag in the touchpad
- hardware than you might expect so need the software to not slow them
+ hardware than you might expect, so need the software to not slow them
down further.
The problem now is that using libinput by default slows down all
touchpads and makes them less precise. For hardware that was already
unresponsive, introducing software that further reduces the
responsiveness is very frustrating, borderline unusable.
When we were using Xorg the simple solution was to adjust hysteresis
with 'synclient'. However now we're using Wayland we're stuck with
libinput and I don't know how to fix it any more. Even Xorg logins don't
seem to use libinput now, so there's no 'synclient' workaround available
there anymore either.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: libinput10 1.6.3-1ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15
Uname: Linux 4.10.0-22-generic x86_64
ApportVersion: 2.20.5-0ubuntu4
Architecture: amd64
Date: Fri Jun 9 14:52:18 2017
InstallationDate: Installed on 2017-06-08 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170607)
SourcePackage: libinput
UpgradeStatus: No upgrade log present (probably fresh install)
** Also affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1696929
Title:
Laptop touchpads are unresponsive (with hysteresis enabled by default)
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