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nvidia hdmi audio

Discussion in 'Multimedia' started by UNIXgod, Mar 16, 2012.

  1. UNIXgod

    UNIXgod New Member

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    Going to be setting up a HTPC. Curious if the nvidia GT520 has support for using the HDMI output to carry the audio as well at the video.

    Anyone done this?
     
  2. SirDice

    SirDice Moderator Staff Member Moderator

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    Not sure if this partical model is supported but there are various NVidia cards on which you can use the audio on the card.

    If I'm not mistaken most are detected by snd_hda(4).
     
  3. jalla

    jalla New Member

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    I don't know about the GT520 in particular, but I've had audio working on a GT240. The peculiar thing ( with reference to the output below) is that I had to use unit 1 for output (sysctl hw.snd.default_unit=1). Zero-two-three did not work.

    Code:
    gong:~% cat /dev/sndstat 
    FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64)
    Installed devices:
    pcm0: <HDA NVidia GT240 HDMI PCM #0 DisplayPort> (play)
    pcm1: <HDA NVidia GT240 HDMI PCM #0 DisplayPort> (play)
    pcm2: <HDA NVidia GT240 HDMI PCM #0 DisplayPort> (play)
    pcm3: <HDA NVidia GT240 HDMI PCM #0 DisplayPort> (play)
    pcm4: <HDA Realtek ALC892 PCM #0 Analog> (play/rec) default
    pcm5: <HDA Realtek ALC892 PCM #1 Analog> (play/rec)
    pcm6: <HDA Realtek ALC892 PCM #2 Digital> (play)
    pcm7: <HDA Realtek ALC892 PCM #3 Digital> (play)
    
     
  4. UNIXgod

    UNIXgod New Member

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    I'm going to go ahead and purchase to see if it works. Thanks for the heads up.
     
  5. Fneufneu

    Fneufneu New Member

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    HDMI audio output works fine since recent mav@ work, committed in 9-STABLE in r232798. Before you had to manually disable msi (see snd_hda man page).