Troubleshooting: Mac mini displays no video
Learn how to troubleshoot your Mac mini if it won't display video.
Keep in mind that although your Mac mini may display similar symptoms that prevent it from turning on, this article discusses what to do if the computer won't display video, meaning that when you press the Mac mini power button:
- You may hear a startup chime
- You may hear fan or drive noise
- You may see the power LED on the front of the computer light up
If your Mac mini does not turn on, when you press the power button:
- You won't hear a startup chime
- You won't hear any fan or drive noise
- The power indicator on the front won't light up at all
If your computer is not responding at all, see the Troubleshooting: Mac mini won't turn on article instead.
If your Mac mini won't display video but you can hear a startup chime, fans, drive noise, or you see the power light turn on, try these steps to resolve the issue:
- Make sure that the monitor is turned on and has power. Make sure that the display's power cord is plugged into a working wall outlet, and that it's properly connected to the power adapter. (To check if the wall socket is working, plug in a lamp or other electrical device.)
- Put the computer to sleep by pressing the Option, Command, and Eject buttons. Wake the computer from sleep with the mouse or keyboard.
- Check that all video cable connections to the computer video port and to the monitor are properly connected.
- Examine the pins on the video cable connector to make sure they are not bent or damaged in any way.
- Connect a known working display (if you have an extra one available). If you see video after doing so, replace your old display.
- Reset the computer's parameter RAM.
- Reset the computer's PMU.
- If you have an Intel-based Mac mini, reset the SMC.
- If you tried all of these steps and the computer still won't display video, contact Apple technical support (1-800-APL-CARE in the U.S.) or take your computer to your local Apple Store or Apple Authorized Service Provider (AASP) for diagnosis. If you plan to visit an Apple Retail store please make a reservation at the Genius bar using http://www.apple.com/retail/geniusbar/ .
Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).