I have tested 4.14 rc6, rc5 and rc1; all three cause the system to hang during boot, printing the following warnings:
ACPI Exception: Could not find/resolve named package element: LNK A (20170728/dspkginit-381) ACPI Exception: Could not find/resolve named package element: LNK B (20170728/dspkginit-381) ACPI Exception: Could not find/resolve named package element: LNK C (20170728/dspkginit-381) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725948 Title: system hangs during boot when using a USB Keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1725948/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs