I boot the computer and the color depth is low in the sense that gradients don't look impressive as you can see banding in them. That is they don't appear to be dithered. I know this is a sign of low bit depth. I close the laptop lid and reopen and voila! Now it's normal?
Macbook Pro 2012 (Non retina) i7 2.9 GHz 8GB 1600 DDR3 Intel 4000 GPU