Sorry to hear your resolution turned to crap-
You could try the Troubleshooting or Power Management section in the link.
-::-If you're unsatisfied with Bumblebee, you can remove it via-::-
sudo apt-get install ppa-purge
sudo ppa-purge ppa:bumblebee/stable
Not sure what else you could try as I have very little experience with 'Bumblebee and Nvidia Optimus'