gnome-shell assert failure: gnome-shell: ../src/evdev-mt-touchpad.c:532: tp_process_absolute: Assertion `tp->nactive_slots >= 1' failed.

[Hunain Arbani]

I'm getting error on startup.

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.34.3-1ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu16
Architecture: amd64
AssertionMessage: gnome-shell: ../src/evdev-mt-touchpad.c:532: tp_process_absolute: Assertion `tp->nactive_slots >= 1' failed.
CurrentDesktop: GNOME-Greeter:GNOME
Date: Fri Feb 14 17:49:49 2020
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
GsettingsChanges:

InstallationDate: Installed on 2020-02-04 (11 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
ProcCmdline: /usr/bin/gnome-shell
RelatedPackageVersions: mutter-common 3.34.3-1ubuntu1
Signal: 6
SourcePackage: gnome-shell
StacktraceTop:
 __assert_fail_base (fmt=0x7f8f2042dfb8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7f8f1de1a260 "tp->nactive_slots >= 1", file=0x7f8f1de1a0f1 "../src/evdev-mt-touchpad.c", line=532, function=<optimized out>) at assert.c:92
 __GI___assert_fail (assertion=0x7f8f1de1a260 "tp->nactive_slots >= 1", file=0x7f8f1de1a0f1 "../src/evdev-mt-touchpad.c", line=532, function=0x7f8f1de1a9f0 "tp_process_absolute") at assert.c:101
 ?? () from /usr/lib/x86_64-linux-gnu/libinput.so.10
 ?? () from /usr/lib/x86_64-linux-gnu/libinput.so.10
 libinput_dispatch () from /usr/lib/x86_64-linux-gnu/libinput.so.10
Title: gnome-shell assert failure: gnome-shell: ../src/evdev-mt-touchpad.c:532: tp_process_absolute: Assertion `tp->nactive_slots >= 1' failed.
UpgradeStatus: Upgraded to focal on 2020-02-14 (1 days ago)
UserGroups:

separator:

[Apport retracing service (apport)]

StacktraceTop:
 __assert_fail_base (fmt=0x7f8f2042dfb8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7f8f1de1a260 "tp->nactive_slots >= 1", file=0x7f8f1de1a0f1 "../src/evdev-mt-touchpad.c", line=532, function=<optimized out>) at assert.c:92
 __GI___assert_fail (assertion=assertion@entry=0x7f8f1de1a260 "tp->nactive_slots >= 1", file=file@entry=0x7f8f1de1a0f1 "../src/evdev-mt-touchpad.c", line=line@entry=532, function=function@entry=0x7f8f1de1a9f0 <__PRETTY_FUNCTION__.12437> "tp_process_absolute") at assert.c:101
 tp_process_absolute (e=0x7ffc47b79ef0, e=0x7ffc47b79ef0, time=27997813, tp=0x5573eeb2ec00) at ../src/evdev-mt-touchpad.c:532
 tp_interface_process (device=<optimized out>, time=27997813, e=0x7ffc47b79ef0, dispatch=0x5573eeb2ec00) at ../src/evdev-mt-touchpad.c:1898
 tp_interface_process (dispatch=0x5573eeb2ec00, device=<optimized out>, e=0x7ffc47b79ef0, time=27997813) at ../src/evdev-mt-touchpad.c:1888

[Daniel van Vugt (vanvugt)]

Also tracking in [unclickable link :(]

https://errors.ubuntu.com/bucket/?id=/usr/bin/gnome-shell%3Agnome-shell%3A%20../src/evdev-mt-touchpad.c%3A532%3A%20tp_process_absolute%3A%20%5C343%5C202%5C242%5C343%5C202%5C265%5C343%5C203%5C274%5C343%5C202%5C267%5C343%5C203%5C247%5C343%5C203%5C263%20%60tp-%3Enactive_slots%20%3E%3D%201%27%27%20%5C343%5C201%5C253%5C345%5C244%5C261%5C346%5C225%5C227%5C343%5C201%5C227%5C343%5C201%5C276%5C343%5C201%5C227%5C343%5C201%5C237%5C343%5C200%5C202

[Daniel van Vugt (vanvugt)]

Release 1.15.2 was tagged upstream two hours ago.

[Launchpad Janitor (janitor)]

This bug was fixed in the package libinput - 1.15.2-1

---------------
libinput (1.15.2-1) unstable; urgency=medium

  * New upstream release. (LP: #1863454)
  * control: Use debhelper-compat.
  * fix-fuzz-override-rules.diff: Dropped, upstream.

 -- Timo Aaltonen <email address hidden> Thu, 20 Feb 2020 09:36:56 +0200