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Enable Extended Desktop (Mac OS X)

Setting up the classroom projector to mirror the display of your computer is common and fairly simple to do. But you can also use the projector as a “second screen” or extended desktop to be able to work on one screen while projecting something else on the other.  With extended desktop, applications can be moved from one screen over to the other. 

Using Extended Desktop is especially helpful to maintain privacy, so that you can display something to your students on the large screen while taking attendance or inputting grades on your screen.

NOTE: Not all configurations may be supported on your computer. Check with the Tech Training Center or the Tech Support Center for more details.

 

Extended Desktop for Mac OS X Users

1.  Connect the displays to your computer.

2.  Open System Preferences, click Displays, and then click Arrangement.

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3.  Uncheck Mirror Displays.

4.  Within the white area there will be representations of your two monitors, drag them to the physical arrangement of your monitors.

 

5.  To show the same image on all the displays connected to your computer, check Mirror Displays.

 

If a display is not recognized, click the Detect Displays button in Displays preferences, or try putting your computer to sleep and then waking it.  Gather Windows moves all open Display preferences windows to the display showing this button. This button appears only if more than one display is connected to your computer.

 

Note: 
There are other ways to enable extended desktop and manage multiple monitors (keyboard shortcuts), depending on your computer and its configuration.
 
Consult with the Tech Training Center for more information.

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