Created attachment 123398 [details]
command lines and their output for my distro, and various device profiling and some logs

I'm getting the below "PreInit returned 2" error when I plugin my keyboard (showing up as "Gaming Keyboard". FWIW I don't think there's anything special about the keyboard; this is the device: http://amzn.com/B00T1P6F1S):

  May  1 18:01:39 carboy /usr/lib/gdm3/gdm-x-session[1504]: (II) failed to create input device '/dev/input/event7'.
  May  1 18:01:39 carboy /usr/lib/gdm3/gdm-x-session[1504]: (EE) libinput: Gaming Keyboard: Failed to create a device for /dev/input/event7
  May  1 18:01:39 carboy /usr/lib/gdm3/gdm-x-session[1504]: (EE) PreInit returned 2 for "Gaming Keyboard"
  May  1 18:01:39 carboy /usr/lib/gdm3/gdm-x-session[1504]: (II) UnloadModule: "libinput"

(a more full /var/log/syslog output is attached, from time I plugged in the keyboard)

:: Debugging/system specific info:

My output from `xinput list` `lsusb` before and after plugging in (with a `tail -f /var/log/syslog` in between):
  attached as "SystemInfo_kernel_distro_xinput-list_lsusb_logs.txt"


Pasting inline, installed packages and their versions (just `grep`ed for '(xinput|wayland|libinput)'):
i A libinput10                      - input device management and event handling
Version: 1.2.4-1

i A libva-wayland1                  - Video Acceleration (VA) API for Linux -- W
Version: 1.7.0-1

i A libwayland-client0              - wayland compositor infrastructure - client
Version: 1.10.0-2

i A libwayland-cursor0              - wayland compositor infrastructure - cursor
Version: 1.10.0-2

i A libwayland-egl1-mesa            - implementation of the Wayland EGL platform
Version: 11.1.3-1

i A libwayland-server0              - wayland compositor infrastructure - server
Version: 1.10.0-2

i   xinput                          - Runtime configuration and test of XInput d
Version: 1.6.2-1

i   xserver-xorg-input-libinput     - X.Org X server -- libinput input driver
Version: 0.18.0-1

i A xwayland                        - Xwayland X server
Version: 2:1.18.3-1


Let me know how I can further debug this. I take it from these https://wayland.freedesktop.org/libinput/doc/latest/reporting_bugs.html instructions that `evemu` doesn't apply here, since I don't have an event node that hangs around to begin with.