run this command:
$ systemctl edit systemd-udevd
that will open an editor, add this text to the file:
[Service] Environment=SYSTEMD_LOG_LEVEL=debug
then save the file, and reboot or restart udevd. then reproduce the problem, and check the output of:
$ journalctl -b -u systemd-udevd
run this command:
$ systemctl edit systemd-udevd
that will open an editor, add this text to the file:
[Service] SYSTEMD_ LOG_LEVEL= debug
Environment=
then save the file, and reboot or restart udevd. then reproduce the problem, and check the output of:
$ journalctl -b -u systemd-udevd