On Wed, 12 Dec 2018 at 12:04, Long Wind <longwind2@yahoo.com> wrote: > > there are two usb sockets on front panel of pc case > they appear same, but really are not 1) try running (as root) lsusb lsusb -t lsusb -v 2) you can identify the sockets on the front by comparing those commands when the sockets are empty, and when they have something connected 3) if you have questions, show us that information