After the recent update, I can confirm that bumblee broke for me as well. I had the same plymouth goes to black screen problem.
As a shot in the dark *(and me not trusting my installation), I removed bbswitch and all nvidia related packages, and then installed nvidia-346. The 3.13.0-62 kernel now boots fine with the new driver.
I did however notice that this new driver does not build against the newer kernels.
After the recent update, I can confirm that bumblee broke for me as well. I had the same plymouth goes to black screen problem.
As a shot in the dark *(and me not trusting my installation), I removed bbswitch and all nvidia related packages, and then installed nvidia-346. The 3.13.0-62 kernel now boots fine with the new driver.
I did however notice that this new driver does not build against the newer kernels.