Thanks for this... you just made my day with this one line. Tried to figure out for days what went wrong with skyrim or the macbook pro, but a simple SMC reset helped.
For the record - since I had to google this SMC reset myself too - here is how I done it on the retina MBP:
1. Shutdown the laptop.
2. Make sure that the MagSafe power adapter connected.
3. Press (left) SHIFT+CONTROL+OPTION+POWER buttons once (at the same time) ...no need to hold them.
4. Press POWER button to turn your MBP on again.
Simple as that and worked like a charm for me.
Big up for Ardalaan.
I bumped into the same problem a few days ago. I somehow fixed it, I also did a SMC reset among other things but I didn't realize the SMC reset fixed it.
Today it happened again and this is how I ended up reading your post
It is now fixed again thanx to you but the question is still why this happened, what action or software triggered this?
Thank you very much!!!