How do i connect TV to thunderbolt display?

Discussion in 'MacBook Pro' started by latyshev, Feb 28, 2012.

  1. latyshev macrumors newbie

    Joined:
    Jul 11, 2010
    #1
    So i just got a thunderbolt display to accompany my MPB.

    When i connect my TV to the back of the display (via HDMI adapter) nothing happens. It works fine if i plug it directly into MBP.

    Is there a way to plug TV into thunderbolt display?
     
  2. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #2
    does your TV have a monitor OUT HDMI or are you just going from the TV input to the TBD input?

    if thats the case 2 in's dont make a out
     
  3. latyshev thread starter macrumors newbie

    Joined:
    Jul 11, 2010
    #3
    That confused me :D

    My TV has only hdmi IN.

    AFAIK, you can connect two TBDs to macbook. So That would mean that thunderbolt port on the display is BOTH in and out.

    No?
     
  4. Jazojas12, Feb 28, 2012
    Last edited: Apr 30, 2013

    Jazojas12 macrumors regular

    Joined:
    Apr 24, 2009
    #4
    Just to clarify your set up is like this:

    Macbook Pro > Thunderbolt Monitor > TB to HDMI adapter > TV via HDMI
     
  5. Taz Mangus, Feb 28, 2012
    Last edited: May 1, 2013

    Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #5
    I believe the OP can use a mini-displayport to HDMI cable.
     
  6. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #6
    does the TBD have a 2nd thunderbolt plug? im pretty sure thats how you connect to a 2nd thunderbolt display

    its called Daisy Chain or something like that
     
  7. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #7
    Doesn't the display have to be last on the chain with thunderbolt devices though? Which would mean the OP's setup could never work since it doesn't have an HDMI out?
     
  8. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #8
    good call out, thats why i originally asked if he had HDMI Monitor out on his TV, but if your correct about the TBD being the last part of the chain than i wont work
     
  9. latyshev thread starter macrumors newbie

    Joined:
    Jul 11, 2010
    #10
    So its not possible to connect both TV and TBD to a Macbook Pro?
     
  10. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #11
    If I understand this correctly, you'd need to do it this way:
    (I cannot guarantee this would work).

    MBP --> TB cable into TB display's input --> TB to hdmi cable from the TBD display into the TV's input.

    This of course, is assuming this can work at all.
     
  11. latyshev thread starter macrumors newbie

    Joined:
    Jul 11, 2010
    #12
    Thanks! Will try that out.

    Although i guess that will loose the hubbing ability of the display? Ethernet, usb etc



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    http://arstechnica.com/apple/news/2...ay-doesnt-play-nice-with-mini-displayport.ars

    What is really going to rub folks the wrong way, we suspect, is that the Thunderbolt Display is not configured to work with a miniDP display plugged in to its Thunderbolt port. It wouldn't be surprising if more than one user with an existing 27" Cinema Display or other miniDP display got a Thunderbolt-equipped Mac and ordered a Thunderbolt display expecting to be able to add the miniDP display at the end of the chain.

    Adding a miniDP display at the end of the chain works with other Thunderbolt peripherals that have downstream ports, so it's not a technical limitation of the spec. Why Apple added this limitation we cannot say, but it could be construed as a move designed to sell more $999 Thunderbolt displays. A more unfortunate side effect, we believe, is that not working according to the spec will add consumer confusion and hamper what is beginning to be a wider rollout of the technology in the PC industry.

    UPDATE: The truth may even be stranger still. Apple's KB article unequivocally states that "Mini DisplayPort displays will not light up if connected to the Thunderbolt port on an Apple Thunderbolt Display." However, Macworld Labs honcho James Galbraith was able to get a 27" Cinema Display to work by connecting it to a downstream port on a Promise Pegasus R6 RAID. In other words, when the chain was configured as MacBook Air > Thunderbolt Display > Pegasus RAID > 27" Cinema Display, all four worked as expected.

    Though this at least demonstrates that it is possible to drive a miniDP display connected to a Thunderbolt Display, it still looks like a needlessly confusing limitation to require another Thunderbolt device in the chain. Furthermore, why it doesn't work when directly connected is yet another mystery.
     

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