Just recently bought a new laptop and proceeded to install OpenSUSE tumbleweed on it (wiping windows). I have installed the basic desktop environment (IceWM) instead of the big DEs as I have a custom setup that I carried over from my other laptop.
The issue seems that HDMI is set as the default audio source. Whilst trying to follow the trouble shoot guide I got a bit confused on how to proceed.
Here is the info I can provide that should be relevant for the issue:
neofetch
OS: openSUSE Tumbleweed x86_64
Host: PC-N1585AZL-2
Kernel: 5.8.14-1-default
WM: bspwm
CPU: AMD Ryzen 7 Extreme Edition (16) @ 1.800GHz
GPU: AMD ATI 04:00.0 Renoir
Memory: 1364MiB / 15413MiB
head -n 1 /proc/asound/card0/codec*
Codec: ATI R6xx HDMI
aplay -ll
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic_1 [HD-Audio Generic], device 0: ALC285 Analog [ALC285 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
lspci -nn |grep -i audio
04:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:1637]
04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor [1022:15e2] (rev 01)
04:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller [1022:15e3]
/etc/modprobe.d/50-sound.conf
options snd slots=snd-hda-intel,snd-hda-intel
# kjQT.HiT7TNOA2mA:Family 17h (Models 10h-1fh) HD Audio Controller
alias snd-card-1 snd-hda-intel
# P5_H.ecAYJTYvoK0:ATI Technologies Inc
alias snd-card-0 snd-hda-intel