Created attachment 853679 [details]
journalctl output after plugging in USB scanner.

When plugging in an USB scanner ( Brother DSMobile DS-740D ) I lose all USB
devices. This used to work, but not 100% when as I don't use the scanner daily.
For sure it was working ~4 weeks ago.

I am Running 5.14.14-1-default, on a Lenovo Thinkpad P52.

Only a reboot fixes the problem.

I am connecting other USB devices ( Yubikey, USB hub with 4 other devices -
Mouse, Keyboard, Mic, Android phone ) with no issues, only the scanner triggers
the problem. The scanner is always plugged in directly to the laptop.

I am not proactively gathering more information since I'm worried about
potential hardware implications, but feel free to ask for anything that would
be useful with debugging.