[Pkg-alsa-devel] Bug#979000: libasound2: [Raven/Raven2/FireFlight/Renoir AMD Ryzen] No Sound at all

[Maya]

Package: libasound2
Version: 1.2.4-1
Severity: important
Tags: newcomer
X-Debbugs-Cc: maya587357 at re-gister.com

With Debian testing freshly installed on my new Lenovo IdeaPad 5 14ARE05 (dual boot
with Win 10), the sound output isn't working. I can only select 'HDMI1 Output' or
'HDMI2 Output' as an output device.
This issue seems to be the one described here for Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1901157
According to the thread this has been fixed for Ubuntu, but I couldn't find it in the
changelogs of Debian alsa-lib.

Here's my output of $ lspci -nnk | grep -A2 Audio

04:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1637]
	Subsystem: Lenovo Device [17aa:3816]
	Kernel driver in use: snd_hda_intel
--
04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor [1022:15e2] (rev 01)
	Subsystem: Lenovo Raven/Raven2/FireFlight/Renoir Audio Processor [17aa:3822]
	Kernel driver in use: snd_rn_pci_acp3x
	Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x
04:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller [1022:15e3]
	Subsystem: Lenovo Family 17h (Models 10h-1fh) HD Audio Controller [17aa:3823]
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel


-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.9.0-5-amd64 (SMP w/6 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8), LANGUAGE=de_AT:de
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libasound2 depends on:
ii  libasound2-data  1.2.4-1
ii  libc6            2.31-6

libasound2 recommends no packages.

Versions of packages libasound2 suggests:
ii  libasound2-plugins  1.2.2-2

-- no debconf information