I have some errors about USB:
[ 14.101367] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[ 14.229536] usb 1-1: device descriptor read/64, error -71
[ 14.465534] usb 1-1: device descriptor read/64, error -71
[ 14.701330] usb 1-1: new high-speed USB device number 3 using xhci_hcd
[ 14.829533] usb 1-1: device descriptor read/64, error -71
[ 15.065537] usb 1-1: device descriptor read/64, error -71
next errors is
[ 16.197202] xhci_hcd 0000:01:00.0: Setup ERROR: setup address command for slot 2.
[ 16.609328] usb 1-1: device not accepting address 4, error -22
[ 17.153346] usb 1-1: device not accepting address 5, error -22
I have 5V cooling fan. I tried switch it to 3V for power saving. Can it help?