Cross reference. The same machine has a second problem, the built-in camera
never enumerates on the USB bus although the port is powered. It works in
Windows on the same port. Filed separately as bug 2164574.

  https://bugs.launchpad.net/ubuntu/+source/linux-hwe-7.0/+bug/2164574

This microphone problem was also reported to the kernel sound list:

  https://lore.kernel.org/linux-
sound/caeojkmvx4306rozybx7bzjcrs1t0goh3-v+nauwynsbjmjl...@mail.gmail.com/

The camera problem was reported to [email protected], with
platform-driver-x86 in copy.

A support request covering both devices was filed with Acer, since in both
cases the hardware works under Windows on the same machine.

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https://bugs.launchpad.net/bugs/2164573

Title:
  ALC245 internal digital microphones return only zeros on Acer Nitro
  ANV16S-41

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