In my desktop I have 8 usb ports, only the one the mouse is connected remains on after I shutdown the computer. I tried to plug the mouse on another usb port and this time this one remains on after I shutdown the computer, all the others are off. If i chose Hibernate instead of Shutdown, all the usb ports are off. The same problem happens with different distros like: xubuntu, ubuntu, mint, manjaro.
Is this a bug? Can this cause problems to my comoputer?