Discussion in 'Mac Pro' started by andrejkw, Nov 30, 2012.

  1. andrejkw thread starter macrumors newbie

    Jun 28, 2010
    I agree. The 4,1 and 5,1 are still very capable machines. They can also be improved by a simple upgrade of the Xeon CPUs.
  2. stjames70 macrumors member

    Jul 5, 2009

    Just wanted to repeat the same as others have said: THANK YOU!!

    MacPro 3,1 with non-certified (PC) GTX Titan. I can now connect it directly to my TV and get audio. The first reboot was kind of scary as I got a white screen only with a pointer. I pressed the power button on a quick tap as you would when waking up the computer from sleep and I got a login screen.

    From there, it was to the audio output choices and picking my SONY TV as the output, and voila, beautiful screen and audio while watching Oblivion.
  3. floyt2000 macrumors newbie

    Sep 1, 2013
    This worked great in 10.8.4! Could hear audio out the HDMI port of my $30 fanless Asus Geforce 610 video card.

    Just did the online 10.8.5 update and I lost audio. I reinstalled this patch and rebooted but still no audio. There an update in the works?
  4. floyt2000 macrumors newbie

    Sep 1, 2013
    False alarm. No audio on first reboot after reinstalling NVAudio. Got audio on second reboot for some reason.
  5. ofawx, Sep 26, 2013
    Last edited: Sep 26, 2013

    ofawx macrumors newbie

    Sep 26, 2013

    Hey there!

    I've recently upgraded to a GTX 680 in my 4,1 MP and was hoping to use this kext to send audio from the card to a compatible monitor over a DisplayPort cable instead of HDMI, but currently nothing shows up in Preferences. Is this a limitation of the software, hardware or my setup?

    Cheers :)

    EDIT: Nothing shows under System Report > Audio either, although a quick search in the console yields:
    26/09/13 5:07:06.000 PM kernel[0]: NVAudio: Found 0x10de0e0a on PXS2
    The 0x10de0e0a is consistent with the card's details listed under >PCI Cards, so I guess the kext is finding it but not allowing output?

    EDIT2: Tested with an HDMI cable and it works perfectly! I'd prefer to use a DisplayPort cable though, so I can leave the HDMI connection for a TV... Let me know if thats possible. Thanks!
  6. Ferazel macrumors regular

    Aug 4, 2010
    This was one of the biggest things that I was missing on my Mac side. I'm glad I was able to find this with a google search. I was going to spring for an optical cable so I could hook up my Mac to my receiver, now I'm great!

  7. thefedeste macrumors newbie

    Nov 3, 2009
    File not found

    The NVAudio-1.0.dmg file is gone.. can someone please upload it again ?? Thanks i really need it :)
  8. andrejkw thread starter macrumors newbie

    Jun 28, 2010
    My apologies! I updated the link in the original post. All is well now! :)
  9. DragonX macrumors newbie

    Mar 23, 2013
    When I disconnect HDMI monitor and then restart, the NVAudio stops working. So when I reconnect the monitor again I have to make a fool reboot!
    Is it possible to fix it somehow? I tried unloading and reloading kext, it didn't help much :(

  10. MacsRgr8 macrumors 604


    Sep 8, 2002
    The Netherlands
    Anyone got HDMI audio working on AMD Radeon cards on OS X?
  11. ActionableMango macrumors G3


    Sep 21, 2010
    I believe that works natively on 5,1 Mac Pro with no changes required, or at least it does for the two official apple cards 5770 and 5870.
  12. slughead macrumors 68040


    Apr 28, 2004
    I think it requires a 2009 Mac Pro mobo or later, IIRC (I looked it up when my 1,1's HDMI audio didn't work).

    I believe it worked with my PC 6870 in my 5,1 (not flashed) but I dont remember with 100% certainty.

    My 5870 (mac edition) does HDMI audio just fine.
  13. MacsRgr8 macrumors 604


    Sep 8, 2002
    The Netherlands
    I have a 3.1 (2008 model) with Radeon 7950 Mac edition.
    Running Windows 7 HDMI audio works fine, but not on OS X (10.8 and 10.9)

    As it does work with Windows, I would think it's a software / driver thingy...
  14. ActionableMango macrumors G3


    Sep 21, 2010
    With a 3,1 I think you are out of luck. IIRC, people who have flashed their 4,1 with the 5,1 firmware suddenly had HDMI audio working. This implies that OS X already has the software in place, but does some sort of artificial check to ensure only 5,1 machines benefit from it.
  15. andrejkw, Nov 26, 2013
    Last edited: Nov 26, 2013

    andrejkw thread starter macrumors newbie

    Jun 28, 2010
    Which model NVidia card are you using? I can't reproduce this problem with a GTX 680.


    Unfortunately, I do not have a Radeon card to be able to see how AMD handles HDMI audio.

    If you can PM your IORegistry dump, I might be able to take a look and see if there's anything that can be done.

    Sorry, I just noticed that you're using 3,1.
    Also, other users in this topic are suggesting that you may need to flash your 4,1 firmware to 5,1 in order to get HDMI audio working. A quick google search reveals a handful of guides on how to do this.
  16. DragonX macrumors newbie

    Mar 23, 2013
    It's GTX 570. I have a Samsung SA950 monitor.

    Is there a way to restart the driver without rebooting?

    Thank you!
  17. DrNeroCF macrumors 6502

    Sep 2, 2004
    Oh, wow. This is something I was missing a long time ago. I had a 570 with the HDMI port running to my TV, and I'd boot over into Windows for some 7.1 PC gaming. I upgraded to a 760 just today (had to get my 1,1 up to Mavericks, now it works perfectly), but since the 760 can push more than 2 displays at once, I really wanted to see if I could get HDMI sound from the Mac side again.

    When I checked awhile ago, the process seemed pretty convoluted, so I never tired, but this was about as simple as it gets as far as running PC cards in a Mac Pro goes.

    So now I have a 1,1 Mac Pro running Mavericks, a GTX 760, 4 monitors, and one of them with HDMI audio. I really wish I would have seen this thread earlier, many, many thanks!
  18. Mirone macrumors newbie

    Jan 23, 2014
    Congratulations on your Great Work!
    can send me the source please?
  19. ronindavid macrumors newbie

    Feb 19, 2014
    works for me

    Contacted Nvidia on how to get my GTX 680 Mac Edition to output sound through the HDMI. They pointed me to this thread and it works perfect on my Mac Pro (early 2008).

    So andrejkw post is Nvidia's official solution for output through HDMI.

    It even works so VLC player can output sound through the HDMI.

    Great job!
  20. Atmos4 macrumors newbie

    Apr 15, 2013
    Stopped working on 10.9.2

    This used to work fine with my GTX 680 over DisplayPort until 10.9.1, but has stopped working on 10.9.2 (audio output doesn't show up), although the kext is loaded:

    Anyone else having this problem who found a solution?
  21. dlx86 macrumors newbie

    Feb 25, 2014
    I'm having the same issue too. I also can't get audio over HDMI in 10.9.1 with the Nvidia web drivers. This is with a GTX 760. I tried with NVAudio and without
  22. Evangeline macrumors member


    Feb 26, 2014
    Yes, I had this issue since using the 10.9.2 betas.

    You need an older 10.9.0 version of appleHDA.kext until nvaudio gets updated.
  23. thornslack macrumors 6502

    Nov 16, 2013
    I also had been benefiting from this, and had HDMI audio through my flashed GTX 680. Updating to 10.9.2 killed that capability. Does anyone have any thoughts on how to best remedy this? Would flashing my 4,1 to a 5,1 have any effect on this issue?
  24. ActionableMango macrumors G3


    Sep 21, 2010
    My comments about the 5,1 were in response to a question about audio on AMD cards.

    AFAIK the only solution for Nvidia cards is the kernal extension that andrejkw so generously provided. For those using it, you'll either have to wait for him to update it or stay on ML. Also, pray he hasn't been hit by the proverbial bus!
  25. ronindavid macrumors newbie

    Feb 19, 2014
    Yep, I can confirm the newest update (10.9.2) seems to keep it from working as it stopped directly after I installed it. I tried re-installing three times and so far nothing. Sucks to find a solution just to have it taken away so quickly.

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