Hi All, [ Please keep me in CC as I'm not subscribed to the list] I’m using an Ubuntu 16.04.4 LTS PC and when I connect an USB device to my Ubuntu PC, I see the below mentioned messages in dmesg. [ 9012.287432] usb usb3-port1: over-current condition [ 9012.287739] usb usb2-port1: over-current condition [ 9012.495919] usb 2-4: USB disconnect, device number 3 [ 9012.495940] usb 2-4.1: USB disconnect, device number 5 [ 9012.615609] usb usb3-port1: over-current condition [ 9012.628513] usb 2-4.2: USB disconnect, device number 7 [ 9012.824274] usb usb3-port1: over-current condition [ 9015.304232] hub_port_connect: 12 callbacks suppressed [ 9015.304254] usb usb2-port4: connect-debounce failed [ 9015.512437] usb usb2-port1: over-current condition [ 9015.720767] usb usb2-port2: over-current condition I’d like to What these messages indicates? Is it a hardware problem from host side(ubuntu PC) or device side? Thanks,