You can check your kernel.log for something like:
Code:
Apr 20 02:49:46 acer-arch usb 3-2: USB disconnect, address 3
Apr 21 03:25:13 acer-arch usb 1-2: USB disconnect, address 2
Apr 21 14:47:37 acer-arch usb 2-2: USB disconnect, address 2
This is the command I used to get that output "grep disconnect /var/log/kernel.log"
Oops, just realized this was a Windows thread.