I had a fresh install of Ubuntu 12.04 on my Alienware M11x, and it worked with the native monitor resolution of 1366x768. In trying to get the Optimus chipset working, I installed Bumblebee 3.0. Now, I am only offered 640x480 for my monitor resolution. Graphically, Unity 3D appears to be working now, instead of the Unity 2D I had before, so…