Get exactly the same as described here on a Macbook Pro 12,1. Long time for booting (mostly stuck at grub), pressing a key there takes 10s to get any visual feedback and USB sometimes doesn't work at the login screen. When it works, if I plug a phone, after a while it shuts down completely.
Logs when it works are like: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1413440 I tried the latest kernel as of today: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc2/ Mainline kernel did not work, I'm trying now to recompile the stable kernel with xhci_hcd as a module and possibly blacklist it (see if fallbacking to ehci_hcd fixes at least usage after the long boot). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1668105 Title: xhci_hcd module turns off usb host controller on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1668105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs