iMac mid 2014 no display on LG TV using mini display port cable

Discussion in 'iMac' started by johnkillcute, Jul 23, 2015.

  1. johnkillcute macrumors newbie

    Joined:
    Jul 23, 2015
    #1
    i have iMac mid 2014 and i wanna connect it to my LG TV for audio and video so that i can watch presentation on TV screen.



    but whenever i connect the cable to mini display port (i think its mini display port because there is no thunder logo) on the iMac there is a reaction when you connect but on the LG TV, no display, only No Signal, input source on my TV is already configured, HDMI1.



    Where do you think guys might be the problem? cables are perfectly working on another Macbook for video, but there is no audio, hdmi cable also working on desktop computer.




    Thanks


    iMac
     
  2. johnkillcute thread starter macrumors newbie

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    Jul 23, 2015
  3. Apple fanboy macrumors P6

    Apple fanboy

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    Feb 21, 2012
    Location:
    Behind the Lens, UK
    #3
    So your cable is a mini display port (same as thunderbolt) at the iMac end. What's at the other end of the cable?
    Also do you have the right TV/AV input selected on your TV.
     
  4. johnkillcute thread starter macrumors newbie

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    Jul 23, 2015
    #4
    yes, i have mini display port cable attached to the hdmi and the hdmi is connected to the hdmi1 of the tv...the input selected on the tv is hdmi1.
     
  5. Apple fanboy macrumors P6

    Apple fanboy

    Joined:
    Feb 21, 2012
    Location:
    Behind the Lens, UK
    #5
    Ok. A quick google found this suggestion from here https://support.apple.com/en-gb/HT204388

    Leave your Mac turned on while you power off the HDTV. Unplug the HDMI cable from the Mac and plug it in again. Power on the HDTV.

    The other option is does the LGTV have a different port to try like a DVI?
     
  6. johnkillcute thread starter macrumors newbie

    Joined:
    Jul 23, 2015
    #6
    i have tried your solution but same problem....

    no DVI port on TV...

    i also tried EZcast, it says could not connect to ezcast but my iPad is working fine with airplay on it.
     
  7. johnkillcute thread starter macrumors newbie

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    Jul 23, 2015
    #7
    do i need to change settings on my iMac or my tv?
     
  8. johnkillcute thread starter macrumors newbie

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    Jul 23, 2015
    #8
    this is what happen when I connect the mini display port cable

    [​IMG]
     

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