MacBook Pro: MiniDisplayPort to HDMI not working!

Discussion in 'MacBook Pro' started by MrFluffums, Sep 3, 2012.

  1. MrFluffums macrumors member

    Joined:
    Apr 3, 2011
    #1
    I plug my Macbook into my HDTV using a MiniDisplayPort to HDMI adapter, but it doesn't do anything! No flashes on the screen or anything! Nothing appears on the "Display" control panel. There is no "arrangement" tab.
    Any suggestions to fix this?
     
  2. bax2003 macrumors 6502a

    bax2003

    Joined:
    Dec 25, 2011
    Location:
    Belgrade, Serbia
  3. mohsy90 macrumors 65816

    mohsy90

    Joined:
    Feb 4, 2011
    Location:
    New York
    #3
    These adaptors are notorious for working only a few times and malfunctioning. Make sure it's securely plugged in at both ends and you have your TV at the right input. The screen should flash, if it doesn't, the adaptor is bad. Also, make sure the HDMI cable you're using is not bad, check it with another device.

    If the adaptor is bad, there is nothing you can do. Hopefully you didn't purchase an expensive one. I would suggest getting this knockoff cable instead of buying another adaptor :http://www.amazon.com/Mini-DisplayPort-HDMI-Adapter-Cable/dp/B003OC6LWM

    As you can see from the reviews, they malfunction quick for some. I have one and so far its been working good for well over a year. Just hope you get lucky.
     
  4. leez macrumors regular

    leez

    Joined:
    Apr 19, 2008
    Location:
    UK
    #4
    Had something similar but... try switching to discrete card.

    Didn't noticed that at first, but integrated card won't display anything on the connected tv/monitor. Should switch automatically, but it didn't in my case (at first, now it's doing that).

    Replaced the cable, checked everything and same situation. Nothing in the settings. Installed gfxcardstatus, switched to discrete and then connected the monitor. It worked.

    Hope that's it, nothing more serious.
     
  5. mohsy90 macrumors 65816

    mohsy90

    Joined:
    Feb 4, 2011
    Location:
    New York
    #5
    +1, this is of course if you have a 15" MBP with dual GPU's.
     

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