USB Audio device is disconnected when LOGIN to my virtual machine

Illan Simon 0 Reputation points Microsoft Employee
2023-02-17T11:11:36.6333333+00:00

Hi,
I have a very strange issue.
I use an USB Audio device on my computer. This computers runs a virtual machine on Hyper-V.
Both OS (computer and VM are W11)
ONLY DURING LOGIN on my virtual machine (not when I start it), my USB Audio device disappear (so no sounds). And it works when I plug off plug on my device.
OR, it works also when I close my wirtual machine (with the cross), not by log out or anything else.

I ran a procom during the login phasis, but to many data to understand the issue.
You can find the procmon here https://1drv.ms/u/s!AkmSLJAooJReg6cOIUeqOvMxaId-yQ?e=nRaDIn
I think something happens on the virtual OS but what ... that is the question.

If someone can help, thanks.

Windows for business | Windows Client for IT Pros | Storage high availability | Virtualization and Hyper-V
Windows for business | Windows Client for IT Pros | User experience | Other
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  1. S.Sengupta 24,636 Reputation points MVP
    2023-02-17T12:34:33.8633333+00:00

    Update audio driver. Visit the support site of the manufacturer to download and install the latest driver.

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  2. S.Sengupta 24,636 Reputation points MVP
    2023-02-17T12:36:25.1466667+00:00

    Update audio driver.

    Visit the support site of the manufacturer to download and install the latest driver.

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  3. Vlad Kasianenko 0 Reputation points
    2024-03-19T07:09:27.5366667+00:00

    I have the same issue with Hyper-V.

    Host: Windows 11
    Guest OS: Windows 10
    Host audio: Samsung USB-C Headset Earphones

    When I start the VM, all is ok, even when I connect to it.
    Then, when I have to click "Sign in" in the Guest OS, the audio disconnects from the Host OS and all audio goes through the default laptop audio output.

    The Enhanced Session Mode is enabled with these params:
    User's image

    The host Device Manager is also missing the USB-C audio once VM is connected.

    Pretty annoying.

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