(I'm not completely sure about my previous comment, though) also, if you want to try another solution, download and install a newer kernel, 3.14 or 3.15 from http://kernel.ubuntu.com/~kernel-ppa/mainline/
(I'm not completely sure about my previous comment, though) kernel. ubuntu. com/~kernel- ppa/mainline/
also, if you want to try another solution, download and install a newer kernel, 3.14 or 3.15 from http://