pc@pc-Lenovo-Z50-70:~$ inxi -A
Audio: Card-1 Intel 8 Series HD Audio Controller driver: snd_hda_intel
Card-2 Intel Haswell-ULT HD Audio Controller driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k3.19.0-22-generic
pc@pc-Lenovo-Z50-70:~$ uname -rm
3.19.0-22-generic x86_64
pc@pc-Lenovo-Z50-70:~$ cat /proc/asound/card0/codec#* | grep Codec
Codec: Intel Haswell HDMI
pc@pc-Lenovo-Z50-70:~$ cat /proc/asound/modules
0 snd_hda_intel
1 snd_hda_intel
pc@pc-Lenovo-Z50-70:~$ lsmod | grep snd
snd_hda_codec_conexant 24576 1
snd_hda_codec_hdmi 53248 1
snd_hda_codec_generic 69632 1 snd_hda_codec_conexant
snd_hda_intel 32768 5
snd_soc_rt5640 94208 0
snd_soc_rl6231 16384 1 snd_soc_rt5640
snd_hda_controller 32768 1 snd_hda_intel
snd_soc_core 196608 1 snd_soc_rt5640
snd_hda_codec 143360 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_compress 20480 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 106496 7 snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller,snd_pcm_dmaengine
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_pcm,snd_seq
snd 90112 23 snd_soc_core,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_compress
snd_soc_sst_acpi 16384 0
soundcore 16384 2 snd,snd_hda_codec
pc@pc-Lenovo-Z50-70:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
pc@pc-Lenovo-Z50-70:~$