Same here.
I upgrade to 3.7 rc6 and it resolved this problem.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc6-raring/
Same here.
I upgrade to 3.7 rc6 and it resolved this problem.
http:// kernel. ubuntu. com/~kernel- ppa/mainline/ v3.7-rc6- raring/