Mini DP to HDMI + sound ?

Discussion in 'MacBook Pro' started by JohnDoe8450, Mar 30, 2009.

  1. JohnDoe8450 macrumors member

    Joined:
    Feb 3, 2009
    #1
    It's all nice and swell that monoprice.com have recently released a mDP to HDMI converter (here)

    However, supposedly this doesn't get sound output over HDMI (according to gizmodo).

    However, the monoprice page states that :
    And, if you look at apple's LED Cinema display it supports sound yet doesn't use the audio out jack.
    Scratch that - it probably gets audio from the USB port.

    Anyhow, my TV has only 1 HDMI input - which is lame. Plus, this HDMI connection doesn't have audio in ports associated with it (like s-video or other ports do) so... if I want to use the HDMI input, I basically need to use HDMI for audi...

    Is there a way to get the audio from my macbook onto the HDMI input of the TV? I was waiting on the monoprice adapter but that kind of let me down...

    Thanks! Sorry if it's a long read :p
     
  2. NickM macrumors 6502

    Joined:
    Feb 24, 2009
    Location:
    USA
    #2
    Sounds like you might need to run the audio into a receiver/stereo system instead of into the TV.
     
  3. m85476585 macrumors 65816

    Joined:
    Feb 26, 2008
    #3
    A lot of TVs will let you run audio for one of the HDMI ports into the audio in for another port. Maybe read the instructions to see if it mentions it. If that doesn't work, you could try a DVI input if your TV has it, and that almost definitely has an audio input associated with it. Worst-case: get some inexpensive powered speakers that will hook up directly to the computer.
     
  4. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #4
    Sorry, running it to a receiver/amp is not currently possible, we're still using the TV speakers :p But we're redoing the basement at the moment, so we should get a nice receiver for the TV afterwards.

    On another note, I read the manual and turns out there is an audio input for the HDMI, so that's all good now !

    Now the way I see it, I have the choice of two options :

    1 - mDP to DVI adapter + DVI to HDMI cable.
    2 - mDP to HDMI adapter + HDMI cable.

    Which option will allow me the highest resolution? Or are they basically the same in this aspect?

    One advantage I can see for option 1 is that I'll be able to use the same adapter if I ever need to plug in to a computer monitor via DVI. Which might happen if I finally end up buying a monitor for myself.

    Opinions?
    Other options?
    Comments?

    Bring em' on! : )
     
  5. MistaBungle macrumors 6502a

    MistaBungle

    Joined:
    Apr 3, 2005
    #5
    Won't the DVI not allow HDCP?

    I can't wait to hook my MacBook up with HDMI and a Toslink.
     
  6. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #6
    Oh...

    Didn't think about that, actually not sure about what HDCP does exactly...
    I know it's some form of copy protectection but would it block VLC of playing a video file on the TV?
    Or would it only block content downloaded off iTunes? (Which is no biggie seeing as I don't use iTunes for movies)
    Would it block a DVD from playing


    Cheers if anyone can answer these questions!
    Or at least point me where I can find the answers : )
    Or do both! :D
     
  7. C01E macrumors member

    C01E

    Joined:
    Jan 25, 2009
    #7
    Regular flv files or a dvd will not have issues (so far, They have yet to use anything like HDCP)

    Itunes and all high def formats currently require it and will not work with anything but the HDMI adapter they sell.

    Choose carefully my friend! :)
     
  8. Runt888 macrumors 6502a

    Joined:
    Nov 17, 2008
    #8
    Definitely go with the MDP->HDMI adapter with the HDMI cable. It will do everything DVI will do, plus HDCP (which isn't going to go away anytime soon). Just because you don't think you need it now, doesn't mean you won't in the future.

    Plus, fewer adapters means less chance of potential failures.
     
  9. JohnDoe8450 thread starter macrumors member

    Joined:
    Feb 3, 2009
    #9
    Ok. Thanks for the input.

    Just so I know, what would be the limitations of the mDP to DVI adapter du to HDCP ?

    What would I NOT be able to do ?
    - .avi file with VLC ?
    - Standard def. trailer on apple.com ?
    - HD trailer on apple.com ?
    - Trailers or music video previews off iTunes ?
    - Standard def. content purchased on iTunes ?
    - HD content purchased on iTunes ?
    - DVD ?

    If you don't feel like explaining just point me to a site which explains it well. Everything I seem to find is general info about HDCP... :-\

    Thanks again people!!
     
  10. disordre macrumors newbie

    Joined:
    Mar 27, 2009
    #10
    to my knowledge, i believe the the macbook does NOT have the capability (yet) to feed sound through the mini-display port/HDMI.

    i think there have been a couple threads started on this topic.
     
  11. Runt888 macrumors 6502a

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    Nov 17, 2008
    #11
    :eek:
     
  12. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #12
    Yeah, that's what I've read on multiple web sites...

    Still unsure about HDCP and stuff...

    Ok, read a little more and from what I understand is that...
    Any display which sports an HDMI connector must support HDCP encoded content. However, is you input non-HDCP encoded content, any display will accept it.
    Moreover, for HDCP to be enabled on the video output of the MacBook, the application has to enable it and at the moment, only iTunes enables it, and then only for HD content.
    Problems playing HDCP content on displays (again, so far HDCP content is basically only iTunes HD) occur when using a mDP->DVI adaptor because DVI does NOT support HDCP, therefore iTunes refuses to display it.

    Sooo... If I was to use the mDP->HDMI, I would NEVER encounter any problems playing content from my macbook pro. But, if I was to use the mDP->DVI connector, I might if I decide to watch iTunes HD content later on.

    Is this correct?
    If anyone can confirm this, I'll be ordering the mDP->HDMI adapter off monoprice once they get more in 3-4 days.
     
  13. disordre macrumors newbie

    Joined:
    Mar 27, 2009
    #13
    I can test this out, although I am not sure I understand HDCP fully.

    I ordered the monoprice mDP-HDMI connector, but I am currently using the apple mDP->DVI to DVI->HDMI cable.
     
  14. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #14
    Do you have any HD content on iTunes?
    If so does it allow you to display it on an external display using mDP->DVI->HDMI ?

    According to gizmodo, mDP->HDMI allows any and all HD content to be displayed on a TV, HDCP or not.
     
  15. disordre macrumors newbie

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    Mar 27, 2009
    #15
    I can try this when I get home from work.

    I'll find something cheap to download.
     
  16. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #16
  17. ziggyonice macrumors 68020

    ziggyonice

    Joined:
    Mar 12, 2006
    Location:
    Rural America
    #17
    What we really need is for a company to come out with is something like this:

    Mini DisplayPort + Mini Optical Cable -to- HDMI
     

    Attached Files:

  18. JohnDoe8450 thread starter macrumors member

    Joined:
    Feb 3, 2009
    #18
    Meh, even better...

    male Mini DisplayPort + male Mini Optical -> male HDMI
    All in one CABLE, not an adapter that looks ugly next to my nice computer :p
     
  19. disordre macrumors newbie

    Joined:
    Mar 27, 2009
    #19
    LOL nice photoshop. here's to dreaming... one day... one day. OR, apple could just firmware update....

    Hmm, I think I'll still give it a try.
     
  20. disordre macrumors newbie

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    Mar 27, 2009
    #20
    hey johndoe, it didn't work. i'll try it when i receive the mDP->HDMI converter, but i doubt it will be any different.
     
  21. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #21
  22. disordre macrumors newbie

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    Mar 27, 2009
    #22
  23. JohnDoe8450 thread starter macrumors member

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    Feb 3, 2009
    #23
    Monoprice just received some more mDP -> HDMI adapters.

    I think I'm ordering when I get home in an hour or so.
     

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