My USB ports are no longer working properly. I was able to USB 3.0 to work with an external hard-drive, but I have tried two mice, and multiple flash drives, to no avail,
I have re-installed 16-04, also a no go.
When I shut down and have the machine show me what is going on, I get this:
[ 8.607438] [drm:intel_set_pch_fifo_underrun_reporting [1915]]*ERROR* uncleared pch fifo underrun on pch transcoder A
[ 8.607461] [drm:intel_pch_fifo_underrun_irq_handler [1915]] *ERROR* PCH transcoder A FIFO underrun
[ 8.611719] usb 3-2: device descriptor read/64, error -71
[ 8.827757] usb 3-2: device descriptor read/64, error -71
[ 9.155791] usb 3-2: device descriptor read/64, error -71
[ 9.371802] usb 3-2: device descriptor read/64, error -71
[ 9.995814] usb 3.2: device not accepting address 4, error -71
[ 10.515848] usb 3.2: device not accepting address 5, error -71
[ 10.515910] usb usb3-port2: unable to enumerate usb device