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Troubleshooting Macs

This page will give updated notes on troubleshooting problems with Mac laptops.

MacBook Audio is Not Working

Some MacBooks will not automatically switch over to the room audio when plugged in.

Solution: Try switching audio manually

  1. Go to the Apple in the upper left corner
  2. System Preferences (or System Settings depending on their OS)
  3. Choose Sound
  4. Look in the second section for Output
  5. Make sure the room audio (Extron) is chosen and not the MacBook

MacBook Green Screens

Some MacBooks will occasionally have issues connecting via HDMI to Cynap, especially when you go to share the screen via Zoom or Panopto. This is due to the Mac connecting via HDCP, a Digital Rights Management (DRM) security feature installed by Apple designed to prevent showing copyrighted material.

Solution: Try Connecting a Different Way

Try connecting a different way. If you are connected via HDMI, try either Screen Mirroring (AirPlay). If you are connected via AirPlay (Screen Mirroring), try using HDMI.

Mac Not Playing Sound Over Classroom Speakers

Is your Mac connected with HDMI in the classroom no longer playing sound over the room speakers? Recently, Macs began not switching to the room speakers automatically when plugged in with HDMI.  

Solution: Switch Sound Output

Step 1: Go to your Apple menu in the upper left of your screen.

Steps 1 and 2

Step 2: Choose System Settings.

Step 3: Choose Sound.

Steps 3 and 4

Step 4: Under the Output menu, switch from your Mac speakers to the room speakers. These probably start with a DVX, Divx, or Extron in the menu. 

Step 5: Macs connected to the Cynap wirelessly with Screen Sharing (AirPlay) should work fine when playing sound.

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