Re: [PATCH v2] ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)

On 9/12/20 6:12 am, Jaroslav Kysela wrote:

Users reported that some Lenovo AMD platforms do not have ACP microphone, but the BIOS advertises it via ACPI.

Can you briefly explain how to confirm that this specific problem exists, and what info you would need from me to add a new machine?

I have a Lenovo E14 Gen 2 with AMD that claims to have DMIC but no evidence of it working.

My workaround so far has been blacklisting the related modules... blacklist snd-soc-dmic blacklist snd-acp3x-rn blacklist snd-acp3x-pdm-dma

alsa-info: http://alsa-project.org/db/?f=0c4d6f062e6065d47ee944f5953f0aaa328d4b44

-- Eliot