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  1. #1


    Member Since
    May 04, 2014
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    7
    Mac Pro 1,1 HDMI audio
    Hi,
    I have a Mac Pro 1,1 running on Mavericks with an updated graphics card, ATI Radeon HD 5770 1024 MB. The mac runs fine on mavericks with the graphics card. I also have Windows 7 Ultimate installed.
    My question is this...

    I use a TV screen as the main monitor for this computer and when using the Mac Pro on Windows, I have realised I'm able to get audio to come through the TV connected via HMDI.
    However, when using the Mac on OS X it's not able to use HDMI audio. I've looked online to this and it says that pre 2010 Macs don't support this feature, but my Pro does on Windows? Can I get it to work on OS X as well?
    Thanks in advance!

  2. #2

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
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    Only a guess - never had a Mac Pro - Have you checked in Sound preferences and selected the appropriate output?
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
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    Specs:
    Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
    If it is running Mavericks it is not a Mac Pro 1.1 unless you have turned it into a complete Hackintosh as they are 32bit EFI.
    Last edited by harryb2448; 05-04-2014 at 06:28 PM.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  4. #4


    Member Since
    May 04, 2014
    Posts
    7
    It is running Mavericks using the guide by Tiamo, which is just a change in the Boot.efi file.
    But either way, it runs Windows 7 64bit too as these Mac Pros were able to run 64bit OS just that the bios or something was 32 bit only..
    But seeing as the audio does come through on the TV in Windows, do you think it's just something that needs to be installed/changed on OS X side? I spoke to someone and they mentioned flashing the graphics card?

  5. #5


    Member Since
    May 04, 2014
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    7
    Quote Originally Posted by bobtomay View Post
    Only a guess - never had a Mac Pro - Have you checked in Sound preferences and selected the appropriate output?
    Yeah I've checked in the preferences, no HDMI audio listed

  6. #6

    Slydude's Avatar
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    Nov 15, 2009
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    9,934
    Specs:
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    How exactly did you have the HDMI cable connected to the Mac Pro? I had a 1.1 and to get the audio into the TV I had to resort to using an optical cable. There was no direct HDMI connection on that model Mac so the option was either a connection from the speaker out to the TV or a direct connection from the optical out to either a stereo or tv that can handle optical input.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  7. #7

    Germany_chris's Avatar
    Member Since
    Oct 31, 2011
    Posts
    283
    Since you are using a PC 5770 it's not going to happen
    Mac Pro 4,1 (Flashed to 5,1) W3570 3.2 Quad..48GB RAM..Gainward GTX 570 "Phantom."
    MacBook Pro 5,2..2.8Ghz C2D..8GB RAM..240GB Vertex +

  8. #8


    Member Since
    May 04, 2014
    Posts
    7
    Quote Originally Posted by Slydude View Post
    How exactly did you have the HDMI cable connected to the Mac Pro? I had a 1.1 and to get the audio into the TV I had to resort to using an optical cable. There was no direct HDMI connection on that model Mac so the option was either a connection from the speaker out to the TV or a direct connection from the optical out to either a stereo or tv that can handle optical input.

    As I stated, I upgraded the graphics card to a 5770 and it has HMDI connections

  9. #9


    Member Since
    May 04, 2014
    Posts
    7
    Quote Originally Posted by Germany_chris View Post
    Since you are using a PC 5770 it's not going to happen
    That sucks, but thank you for your help!

  10. #10


    Member Since
    Jul 13, 2015
    Posts
    1
    HDMI and TV
    Hello. I also have a 1.1 MacPro and an HD5770. When I connect it to my Panasonic 42" TV (through a minidisplayport to HDMI adapter) the Mac recognize the HDMI connection and also display Panasonic into the Display control but no picture appears.
    How did you connect your TV? What adapter did you use?

    thanks
    Gianni

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