The result is not sound at all.
lsmod | grep snd
snd_hda_intel 21860 0
snd_hda_codec_realtek 206339 0
snd_hda_codec 58350 2 snd_hda_intel,snd_hda_codec_realtek
snd_hwdep 12936 1 snd_hda_codec
snd_pcm 53284 2 snd_hda_intel,snd_hda_codec
snd_page_alloc 12899 2 snd_hda_intel,snd_pcm
snd_seq 39752 0
snd_timer 22196 2 snd_pcm,snd_seq
snd_seq_device 12985 1 snd_seq
snd 38777 8
snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device
soundcore 12992 1 snd
aplay -l
**** List of PLAYBACK Hardware Devices ****
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
