i'm on a macbook, and while i like having the external monitor hooked up at times for extra space, sometimes i would like to have it shut off while the monitor is plugged into the computer. is there a way to do this? thanks.
Yeah... I don't think there's any easy way to do that. If I leave my iMac plugged in to my TV, even with the TV off, the iMac behaves as if there is an external device plugged in..... I could see some situations where it would be handy to tell it to "ignore" the port. For that matter, same goes for the audio out.... (ignoring it and continuing on with the internal speakers). But I don't know a way to do this.
I have a MacBook with an external display connected via DVI. It's been my experience that you just pull the MiniDVI connector while everything is running and the MacBook will figure out that there's no more external monitor. It then makes the adjustments, and keeps on doing what it was doing. The monitor also figures out that there's no signal and turns itself off. No problems. Hope that helps.