Comment # 3 on bug 1200716 from Jiri Slaby

(In reply to Michael Pujos from comment #0)
> [ 8524.631458] usb 3-4: 1:0: usb_set_interface failed (-19)
> [ 8524.631639] usb 3-4: USB disconnect, device number 2


Can you identify (from the logs) when this started to happen? Something like
grep -E 'Linux.version|usb_set_interface failed' run on the logs.