Audio Problem - nVidia 8400GS Passthrough - Windows 7 - ESXi 6.7.0 U1

Discussion in 'VMware, VirtualBox, Citrix' started by petreza, Nov 23, 2019.

  1. petreza

    petreza New Member

    Dec 28, 2017
    Likes Received:
    Finally was able to achieve a stable passthrough with an old nVidia 8400GS
    Windows 7
    Supermicro X11DPG-QT

    However, there are no audio playback devices showing.
    I have:
    Device Manager->Sound, video....->NVIDIA Virtual Audio Device (Wave Extensible) (WDM)
    Device Manager->System devices->High Definition Audio Controller

    High Definition Audio Controller->right click->Properties->General Tab->Location: ..... (function 1)
    matches the Location of the "NVIDIA GeForce 8400GS" display adapter ....(function 0)

    so "High Definition Audio Controller" is the passthrough audio controller
    on the Driver Tab it says that the driver provider is Microsoft
    I tried forcing the nVidia HDAudio drivers "nvhda.inf" but Windows says they do not match

    as I said, under "Playback devices" it says "No audio devices are installed"

    Any ideas?
  2. besterino

    besterino New Member

    Apr 22, 2017
    Likes Received:
    I struggled as well with certain NVIDIA cards. In one system I gave up and passthrough‘ed an USB-soundcard instead (Quadro P400), in another (2080Ti) I manually set the pcie-reset mode in to d3d0 specifically for the audio device.

    The last requires quite some trial and error, do not recommend. ;)
  3. petreza

    petreza New Member

    Dec 28, 2017
    Likes Received:

    Aghhh...... figured it out!
    From what you said, I started researching and in a vmware document they were talking about pci passthrough and pci ids and then it clicked:
    I am blindly putting settings such as
    as recommended online for nVidia passthrough

    but my video card is not id=0 , that is my USB passthrough
    my video card is id=1 so I changed that line to
    which did NOT fix the problem, but then I added a second line
    for the audio passthrough and as the VM booted up 4 audio devices were recognized including my Samsung TV.

    I hope this helps someone out there
    Gunnyp likes this.
  4. Gunnyp

    Gunnyp New Member

    Oct 23, 2019
    Likes Received:
    Oi! Was having same issue with a 2080Ti and the X11DPG-QT. Thanks for posting the solution!
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