Just bought thinkpad t480 and have some problems with my usb devices: with my mouse and keyboard. Mouse and keyboard just don't work for 1 sec randomly. Fresh installed arch linux.
try usbcore.autosuspend=-1 kernel switch.
usbcore.autosuspend=-1
IBM and Lenovo ThinkPad laptop enthusiasts!
try
usbcore.autosuspend=-1
kernel switch.