I'm not sure what I've did, but the problem seems to be solved after some updating (I haven't tested the 3.14 kernel, though). I currently have the 3.13.0-20-generic.
I'm not sure what I've did, but the problem seems to be solved after some updating (I haven't tested the 3.14 kernel, though). I currently have the 3.13.0-20-generic.