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angelwen99

macrumors newbie
Original poster
Sep 5, 2008
5
0
I want to extend my desktop onto a 2nd screen. Do I need to change a (possibly display) setting on my iMac to be able to do this?
 
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You may have to. Once you plug it up, open the display preferences and you will have the option to mirror or extend desktop. You will have to select to extend desktop.
 
When I first did it with my Macbook, it was set to extend the desktop by default. However, I still had to go into the display preferences and change the positioning of the extra monitor- IIRC, it assumes the external monitor is to the left of the main monitor by default.
 
By extend desktop do you mean mirror or extend? To do so just go to system prefs<displays<detect displays. You might not be able to depending on your model. What iMac do you have?
 
I have a 20" 2.66 Ghz iMac, and I do mean extend. Thanks, I'll definitely try it.:)
 
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