I had to take my laptop apart when I spilt something on the keyboard. It turns out that on a previous occasion after removing the CPU from the ZIF socket to look at the shiny pins I didn't tighten it all the way back to lock the CPU in place, I only turned it half way.
So it was more likely a real hardware problem, not a kernel problem. Feel free to close this bug, I've moved to kernel 3.12-0.bpo.1-amd64 anyway. Regards, Philip Ashmore -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org