Alan, I am in the process of getting some more USB 3.0 disk drives and devices. After I get my notebook back again in about a week or so I can do some experimentation with different devices on different controllers and see if I can find a pattern. To everyone, a very Merry Christmas and Happy Holiday season. md -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html