Ladies and gentlemen,
I tested alsa on Kernel 5.2.2 on an MacBook Air 3,2 with alsa-lib
1.1.9, fftw 3.3.8, ncurses 6.1. Somehow I was not able to get the right
speaker to work. On Kernel 4.19.60 everything works. Same setup
different results. Distribution: Arch Linux
lsmod | grep snd
snd_hda_codec_hdmi 65536 3
snd_hda_codec_cirrus 20480 1
snd_hda_codec_generic 94208 1 snd_hda_codec_cirrus
ledtrig_audio 16384 1 snd_hda_codec_generic
snd_hda_intel 49152 0
snd_hda_codec 155648 4
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_ci
rrus
snd_hda_core 102400 5
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,sn
d_hda_codec_cirrus
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 135168 4
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_timer 40960 1 snd_pcm
snd 106496 7
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hd
a_codec,snd_timer,snd_pcm
soundcore 16384 1 snd
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=NVidia
HDA NVidia, CS4206 Analog
Default Audio Device
sysdefault:CARD=NVidia
HDA NVidia, CS4206 Analog
Default Audio Device
front:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
Front speakers
surround21:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer
speakers
iec958:CARD=NVidia,DEV=0
HDA NVidia, CS4206 Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=NVidia,DEV=0
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
HDA NVidia, HDMI 0
HDMI Audio Output
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: CS4206 Analog [CS4206 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: CS4206 Digital [CS4206 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
ls -l /dev/snd
total 0
drwxr-xr-x 2 root root 60 Jul 25 14:25 by-path
crw-rw---- 1 root audio 116, 12 Jul 25 14:25 controlC0
crw-rw---- 1 root audio 116, 8 Jul 25 14:25 hwC0D0
crw-rw---- 1 root audio 116, 9 Jul 25 14:25 hwC0D3
crw-rw---- 1 root audio 116, 10 Jul 25 14:25 hwC0D4
crw-rw---- 1 root audio 116, 11 Jul 25 14:25 hwC0D5
crw-rw---- 1 root audio 116, 3 Jul 25 14:25 pcmC0D0c
crw-rw---- 1 root audio 116, 2 Jul 25 14:25 pcmC0D0p
crw-rw---- 1 root audio 116, 4 Jul 25 14:25 pcmC0D1p
crw-rw---- 1 root audio 116, 5 Jul 25 14:25 pcmC0D3p
crw-rw---- 1 root audio 116, 6 Jul 25 14:25 pcmC0D7p
crw-rw---- 1 root audio 116, 7 Jul 25 14:25 pcmC0D8p
crw-rw---- 1 root audio 116, 1 Jul 25 14:25 seq
crw-rw---- 1 root audio 116, 33 Jul 25 14:25 timer
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