Well, my problem was quite different.
While using the 10.10 DP2, the wireless network stopped working properly. Not just for me, anybody using the same network would complain that it was bad. The top speed I would get was around 20KBps up/down. And when I was using that, nobody else was able to use the network, it simply stopped for everybody else.
Reseting the SMC solved it for yesterday, but after using bootcamp and coming back to the 10.10, the problem was back. Reseted again, and it seems to be good again. Wondering if there is something on bootcamp screwing my SMC configs...
Just reporting what happened to me, hope it helps somebody else.