jShizz
Level 1 (4 points)
iPhone

Q: Display Mirroring not showing in menu bar

We often hook up our TV to the macbook to watch movies. When I hook up the adapter (mini display to HDMI) from the TV, the mirroring option would always pop up in the menu bar, which I would click on and we would be good to go. Today, this disappeared from my menu bar. I confirmed that the appropriate box is checked under displays and all connections are sturdy. I know it is the macbook and not the TV, because we tried it on another TV. What could have changed?

MacBook Pro (17-inch Mid 2009), OS X Mountain Lion (10.8.4)

Posted on Aug 10, 2014 8:06 PM

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jShizz

Q: Display Mirroring not showing in menu bar

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  • by jShizz,

    jShizz jShizz Aug 12, 2014 3:23 PM in response to jShizz
    Level 1 (4 points)
    iPhone
    Aug 12, 2014 3:23 PM in response to jShizz

    I should also mention that I upgraded iTunes the same day this stopped working, could that have something to do with it?

  • by alex_h1,

    alex_h1 alex_h1 Aug 13, 2014 10:58 AM in response to jShizz
    Community Specialists
    Aug 13, 2014 10:58 AM in response to jShizz

    Hello jShizz,

     

    Thanks for using Apple Support Communities.

     

    It sounds like the external display is not being recognized by your Mac.  Please follow the steps below to help resolve the issue:

     

    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).

    Reset the system

    You can reset the Mac's parameter RAM and SMC.

    Reset the resolution

    Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:

    1. Start up in Safe Mode.
    2. From the Apple () menu, choose System Preferences.
    3. Choose Displays from the View menu to open the preferences pane.
    4. Select any resolution and refresh rate that your display supports.
    5. Restart your computer.

     

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

    http://support.apple.com/kb/HT1573

     

    Take care,

    Alex H.

  • by jShizz,

    jShizz jShizz Dec 8, 2014 8:37 PM in response to alex_h1
    Level 1 (4 points)
    iPhone
    Dec 8, 2014 8:37 PM in response to alex_h1

    turns out the cable was busted!