Connecting to an AirPlay display
First, be sure you are connected to the Burke wifi.
Turn Airplay on in System Preferences > Displays. Then choose the desired AirPlay device in the drop down menu to allow your Mac to use the Apple TV as a display.
Click "Show Mirroring Options..." to show the AirPlay Mirroring icon in your menubar.
The icon turns blue when AirPlay Mirroring is on (
).
You can also click on this icon to connect to an AirPlay display.
The Security Code
When you attempt to connect to an Apple TV, your device will ask you for an Airplay code, and a four-digit code will appear on the screen for the Apple TV (as on the right below). Enter the code into the dialogue box, and you will be connected to the Apple TV.
To share the screen with a student or another teacher, you will first have to disconnect from the Apple TV.
Optimizing image quality
Resolution matching modes
You can choose between two desktop resolution matching modes that let you select which display will have the best image. When AirPlay Mirroring is turned on, select an option under "Match Desktop Size To:" in the AirPlay Mirroring menu extra.
- Match Desktop Size To: [Name of Apple TV]
AirPlay Mirroring changes the desktop resolution to best match your Apple TV, resulting in a 16:9 image that fills the HDTV screen. This setting often produces the sharpest image on the HDTV. The aspect ratio and/or resolution of the built-in Mac display may change to accommodate the Apple TV.
- Match Desktop Size To: Built in Display
AirPlay Mirroring scales the contents of the desktop to fit on the Apple TV, leaving the resolution of your Mac's display unchanged. Use this setting for the sharpest image on your Mac's display. Depending on your Mac model, the resulting image may not fill the HDTV screen.
Troubleshooting AirPlay Mirroring
If you don't see mirroring options
If your Mac and Apple TV are on the same network, but no AirPlay Mirroring menu appears, your Apple TV may be asleep. Simply press a button on your Apple TV remote to wake it up. After a few seconds, the AirPlay Mirroring menu extra appears. If you still don't see the options you expect, make sure your Apple TV has the current software update installed. Also make sure that you have the "Show mirroring options in the menu bar when available" option selected in the Displays pane of System Preferences.
If the menu bar or Dock is cropped
Some HDTVs have bezels that cover a small percentage of the screen. This can result in a slight cropping of a full-resolution HDTV image. Depending on the HDTV model, AirPlay Mirroring may automatically adjust the picture size to prevent cropping. If you are using OS X Mountain Lion or later, and you see cropping of the menu bar or Dock when using AirPlay Mirroring, toggle the Overscan correction option in Displays preferences.
Learn more
For more information about Apple TV and AirPort Mirroring, see Apple TV: How to use AirPlay Mirroring. For additional troubleshooting information, see Troubleshooting AirPlay and AirPlay Mirroring.
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