Hi Daniel,
unfortunately, there are no crash files in /var/crash/. I've checked also: https://errors.ubuntu.com/user/<whoopsie-id> but there are no crashes reported in the last month.

It looks like the "crash" is not caused by a fatal signal like SIGSEGV and no core dump is generated.

But, still from the same log file (attached), I noticed that systemd-logind exited with a failure:

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Nov 10 00:20:13 lenovo upowerd[3602]: Could not acquire inhibitor lock: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
Nov 10 00:20:13 lenovo dbus-daemon[1120]: [system] Activating via systemd: service name='org.freedesktop.login1' unit='dbus-org.freedesktop.login1.service' requested by ':1.178' (uid=1000 pid=12386 comm="/usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/use" label="unconfined")
Nov 10 00:20:13 lenovo gsd-power[12749]: Unable to inhibit suspend: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
Nov 10 00:20:13 lenovo gsd-media-keys[12746]: Unable to inhibit suspend: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
Nov 10 00:20:13 lenovo systemd[1]: Starting SSSD PAM Service responder...
Nov 10 00:20:13 lenovo systemd[1]: systemd-logind.service: Main process exited, code=exited, status=1/FAILURE
Nov 10 00:20:13 lenovo systemd[1]: systemd-logind.service: Failed with result 'exit-code'.
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Later, I observe that gnome-session cannot communicate with systemd using GDBus and ends up failling back to a "non-systemd procedure":


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Nov 10 00:20:13 lenovo gnome-session[18803]: gnome-session-binary[18803]: WARNING: Failed to upload environment to systemd: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.freedesktop.systemd1" does not exist
Nov 10 00:20:13 lenovo gnome-session-binary[18803]: WARNING: Failed to upload environment to systemd: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.freedesktop.systemd1" does not exist
Nov 10 00:20:13 lenovo systemd[12345]: Failed to start GNOME Wacom tablet support service.
Nov 10 00:20:13 lenovo systemd[12345]: org.gnome.SettingsDaemon.Power.service: Failed with result 'exit-code'.
Nov 10 00:20:13 lenovo systemd[12345]: Failed to start GNOME power management service.
Nov 10 00:20:13 lenovo gnome-session[18803]: gnome-session-binary[18803]: WARNING: Failed to reset failed state of units: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.freedesktop.systemd1" does not exist
Nov 10 00:20:13 lenovo gnome-session-binary[18803]: WARNING: Failed to reset failed state of units: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.freedesktop.systemd1" does not exist
Nov 10 00:20:13 lenovo gnome-session[18803]: gnome-session-binary[18803]: WARNING: Falling back to non-systemd startup procedure due to error: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.freedesktop.systemd1" does not exist
Nov 10 00:20:13 lenovo gnome-session-binary[18803]: WARNING: Falling back to non-systemd startup procedure due to error: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.freedesktop.systemd1" does not exist
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Could this be a systemd bug?