Comment 7 for bug 1766137

Here is the output from journalctl (extra spacing around probably the most interesting line). Also when I got back to the login screen, I very briefly saw a message under the password form saying 'Authentication error'.

/usr/lib/gdm3/gdm-x-session[1915]: (II) UnloadModule: "libinput"
/usr/lib/gdm3/gdm-x-session[1915]: (II) systemd-logind: releasing fd for 13:65
/usr/lib/gdm3/gdm-x-session[1915]: (II) UnloadModule: "libinput"
/usr/lib/gdm3/gdm-x-session[1915]: (II) systemd-logind: releasing fd for 13:69
/usr/lib/gdm3/gdm-x-session[1915]: (II) UnloadModule: "libinput"
/usr/lib/gdm3/gdm-x-session[1915]: (II) systemd-logind: releasing fd for 13:67
PackageKit[1352]: search-file transaction /372_adaeccdc from uid 1000 finished with success after 602ms
/usr/lib/gdm3/gdm-x-session[1915]: (II) Server terminated successfully (0). Closing log file.
gdm-password][1906]: pam_unix(gdm-password:session): session closed for user chris
gnome-shell[1128]: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
systemd[1]: Starting Stop ureadahead data collection...
systemd[1]: Started Stop ureadahead data collection.

gdm-password][2437]: pam_unix(gdm-password:auth): authentication failure; logname= uid=0 euid=0 tty=/dev/tty1 ruser= rhost= user=chris

systemd-logind[904]: Removed session 4.
gdm-password][2440]: pam_unix(gdm-password:session): session opened for user chris by (uid=0)
systemd-logind[904]: New session 5 of user chris.
systemd[1]: Started Session 5 of user chris.
gnome-shell[1128]: g_dbus_connection_call_sync_internal: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
kernel: xhci_hcd 0000:39:00.0: remove, state 4
kernel: usb usb4: USB disconnect, device number 1
kernel: xhci_hcd 0000:39:00.0: USB bus 4 deregistered
kernel: xhci_hcd 0000:39:00.0: xHCI host controller not responding, assume dead
kernel: xhci_hcd 0000:39:00.0: remove, state 4
kernel: usb usb3: USB disconnect, device number 1
kernel: xhci_hcd 0000:39:00.0: Host halt failed, -19
kernel: xhci_hcd 0000:39:00.0: Host not accessible, reset failed.
kernel: xhci_hcd 0000:39:00.0: USB bus 3 deregistered
upowerd[1133]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/0000:02:02.0/0000:39:00.0/usb4/4-0:1.0
upowerd[1133]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/0000:02:02.0/0000:39:00.0/usb3/3-0:1.0
boltd[1351]: [d4030000-0092-XPS13 9360 ] removed (/sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/0000:02:00.0/0000:03:00.0/domain0/0-0)
upowerd[1133]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/0000:02:02.0/0000:39:00.0/usb3
boltd[1351]: [d4030000-0092-XPS13 9360 ] dbus: unexported
upowerd[1133]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/0000:02:02.0/0000:39:00.0/usb4