@JiaZhang
PipeWire is not required on Xfce and replacing PulseAudio with PipeWire would make it harder to deal with the issue in ALSA
@raysa
Ryzen Audio Co Processor is not loading a driver, but the drivers are detected as alternates
Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor vendor: Dell
driver: N/A alternate: snd_pci_acp3x, snd_rn_pci_acp3x bus-ID: 04:00.5
I suggest you update system BIOS
Dell Vostro 3405 and Inspiron 3505 System BIOS
and install kernel v5.15
Use Manjaro Settings Manager GUI ( manjaro-settings-manager -m msm_kernel )
OR
sudo mhwd-kernel --install linux515
If audio is still not working as expected, get ALSA information with this command
sudo alsa-info.sh --upload