Dne 18. 11. 20 v 10:25 Mukunda, Vijendar napsal(a):
[AMD Public Use]
AMD: You just replicated my original question without any answer (2 weeks+). Do you have something to share or do you not support your code?
Jaroslav
-----Original Message----- From: Jaroslav Kysela perex@perex.cz Sent: Wednesday, November 18, 2020 2:37 PM To: Mukunda, Vijendar Vijendar.Mukunda@amd.com Cc: ALSA development alsa-devel@alsa-project.org Subject: snd-rn-pci-acp3x - auto dmic detection unreliable
Hi,
it seems that the ACPI auto-detection of the presence the digital microphone connected to AMD Renoir audio bridge is unreliable. It may be that hardware vendors do not provide the correct ACPI tables. Could you clarify the usage of _WOV integer value? It seems that this value is set on those plaforms which do not have the digital microphone (the microphone is connected to the HDA codec):
_WOV integer value should be set only when DMIC is connected to APU. When DMIC is not available, _WOV integer value should be set to zero by BIOS.
Lenovo IdeaPad 5 (15ARE05) Lenovo Thinkpad X395
In any case, we should probably improve the auto-detection using DMI or other platform info.
JaroslavBugLink: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugzilla.r...
-- Jaroslav Kysela perex@perex.cz Linux Sound Maintainer; ALSA Project; Red Hat, Inc.