First of all, do you have 2 usb controllers? If so, assign one of them to the sys-usb… I dont remember how, its been a long time, but I do remember that I was able to find out how by searching for setting up sys-usb… There are some command lines that show the detailed addresses of the usb controllers. Hope this helps, I know how it is! Follow up on the keyboard. I dont remember how or what, but I no longer have to erase the keyboard reservation in grub.