Comment 28 for bug 1668105

I updated to kernel 4.12 and the kernel recover usb failures on boot
( the clue was that the usb live cd booted , recovering usb failures, with ubuntu 17.04 kernel 4.10 )

+ i booted on macos , and updated the system from the default macos updater : some stuff on the "bios" should have been updated and now everything is fine

I dig into the intel problems and found this , for the record :
https://www.google.fr/search?q=xhci+host+controller+reset+may+cause+system+to+hang