RMB1230
Level 1 (0 points)

Q: monitor blinking

I have a Mac OSX 10.7 and my monitor started blinking periodically today. And once it went completely black, then flashed back on. I have and LED Cinema Display. Does it need to be serviced, or is there a fix that I can do. Is anyone else having this problem?

LED Cinema Display (27-inch), Mac OS X (10.7.5)

Posted on Mar 14, 2014 3:29 PM

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RMB1230

Q: monitor blinking

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  • by mario49,

    mario49 mario49 Mar 16, 2014 7:16 AM in response to RMB1230
    Community Specialists
    Mar 16, 2014 7:16 AM in response to RMB1230

    Hello RMB1230,

     

    Thank you for using Apple Support Communities.

    For more information, take a look at:

     

    Apple computers: Troubleshooting issues with video on internal or external displays

    http://support.apple.com/kb/ht1573

     

    No video or no signal, image distortion, "snow," or flickering

    Check connections

    When using an external display be sure to check the following:

    1. If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
    2. Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
    3. Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
    4. Try unplugging the video adapter or cable and then plug it back in.
    5. If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
      • Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
    6. If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).

     

    Have a nice day,

    Mario