I currently have an Early 2011 Macbook Pro (MBP) running OS X Mavericks 10.9.1. I usually connect this laptop to two external displays
A Thunderbolt (TB) Display, which is connected directly to the MBP via the Thunderbolt cable.
A projector, which is daisy-chained to the TB Display through a Thunderbolt hard drive, and a DisplayLink to HDMI adapter.
My exact setup is as follows:
MBP -> TB cable -> TB Display -> TB cable -> TB HD -> DisplayLink to HDMI adapter + HDMI cable -> Projector.
My setup works fine except for the fact that graphics card goes berserk since it is effectively handling three screens at once. Since I only use one display at a time, I am hoping to alleviate this issue by turning off the displays that I do not use.
Specifically my questions are:
Is there a way to turn off the MBP screen without closing the lid (e.g. a command-line prompt or a program that I can install)? Closing the lid actually sets off a kernel panic as it MBP overheats.
Is there a way to turn off the "connection" to the projector? For some reason, I can still see the projector as a display option under Display Settings even when I have the projector powered off.