Only Mono Audio from USB Audio Card

User Support
1

Hello All,

I’ve been using Qubes with relative success. One challenge I have is with using an external audio device (Sennheiser GSX 1000, https://assets.sennheiser.com/global-downloads/file/8226/GSX_1000_-_Fact_sheet.pdf). Audio works however it only comes through as mono audio.

How can I make this work with better fidelity? I’m sure it comes down to a driver issue but the qubes driver / no internet approach confuses me a little still. Apologies for any denseness portrayed on my part here.

Thanks in advance

2

For debugging, you can try to use your USB Audio Card in the sys-usb (ideally, for best security, it should be disposable). It should work like on a standard Linux. If it works there, then your problem is probably with attaching it to other qubes.

3

Sorry for the delay, I’ll look into this… I’ve not looked much into sys-usb, I need to anyway for hardware wallets.

4

Necrobumping, but might be interesting for other people using the same hardware.
I recently bought the GSX 1200.

To setup a working audiovm with 7.1 support I needed to:

  • Follow theses instruction Setting up an audio VM - #24 by hamenarin , but replace fedora-34-xfce by fedora-35-xfce as official support for 7.1 was added for pulseaudio 15.0 and pulseaudio 15.0 is available for fedora-35+ ( see the “packages” part of this post for the package that need to be installed Guide on using an USB audio device with Qubes 4.1 - #3 by enmus )
  • Doing a USB passthrough of the GSX 1200 seems to not be supported (Linux kernel complaining about “usb usbX: Not yet implemented” ), so I ended up merging the audiovm with the usbvm for this usb controller
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