locomoco

Now will someone figure out a terminal command to turn off the MacBook Pro display for Yosemite?

Like the following: http://osxdaily.com/2011/09/14/disable-the-internal-screen-o...

Along with the battery suck, it also generates more heat as the GPU has to output 2 signals.

Yes, but it's not the same as turning the display off. The GPU is still outputting signal to the Macbook Pro screen.

Anyone know how to turn off the Macbook pro screen with the lid open while using external monitors? On Mavericks this worked just fine:

http://gizmodo.com/5938452/a-trick-to-make-using-an-external...

Now no dice... anyone know a way to keep the screen off with the lid open?

To execute in Terminal:

sudo nvram boot-args="iog=0x0"

To undo in Terminal:

sudo nvram -d boot-args

Once you type it into terminal I believe you need to enter your password. I then restart my machine. Now the TRICK is to either restart your machine with the lid already closed (hit restart then slam the lid!) OR turn the machine on for the first time (then quickly slam the lid!) once you are past the login screen you can open the lid.