Comment 37 for bug 1434581

Ok, I try whether I can see a similar regression on a host I got at home when I get there. If that does not work or if you want to try out beforehand, http://kernel.ubuntu.com/~kernel-ppa/mainline/ has a number of builds between so you might try 3.12 (with simplefb blacklisted) to get a closer range of when this changed to the worse.