I have a new ThinkPad W530, but this question seems relevant to other hybrid laptops:
The BIOS gives me three choices for handling the display:
1. The onboard Intel GPU
2. The discrete Nvidia card
I'll use this machine for photo editing and processing. I also don't like noisy machines so I want to reduce fan noise to a safe minimum.
Forgetting the photo work for a moment, which of those three options will generate the least heat and, presumably, trigger the fans less frequently, when used for routine mail, browsing, etc.?
Then, of course, assuming the photo work amounts to "graphics intensive", which choice should I make?
Optimus would require Bumblebee. Am I correct that Bumblebee does not automatically handle the switching, that "graphics intensive" apps need to be launched manually?