On Thu, 28 Aug 2014 07:54:50 -0700 (PDT) Beeblebrox <zaphod@berentweb.com> wrote: > I placed on the linux line of grub.cfg > acpi=force lapic=debug > to no avail. Do you have any specific suggestions? Also try acpi=off (! may broke the boot) Here's a bootparams list: https://www.kernel.org/doc/Documentation/kernel-parameters.txt (you'll see that there are debug options for acpi, might be interesting) Also try something about apic.