!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Sat Mar 3 01:46:53 UTC 2018 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: !!Kernel Information !!------------------ Kernel release: 4.14.22-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.14.22-v7 Library version: 1.1.3 Utilities version: 1.1.3 !!Loaded ALSA modules !!------------------- snd_bcm2835 !!Sound Servers on this system !!---------------------------- Jack: Installed - Yes (/usr/bin/jackd) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA bcm2835 ALSA !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_usb_audio: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : Y enable_hdmi : N enable_headphones : N force_bulk : N !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Mar 3 01:41 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 16 Mar 3 01:41 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 17 Mar 3 01:41 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 1 Mar 3 01:41 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Mar 3 01:41 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Mar 3 01:41 . drwxr-xr-x 3 root root 160 Mar 3 01:41 .. lrwxrwxrwx 1 root root 12 Mar 3 01:41 platform-soc:audio -> ../controlC0 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) # The IPC key of dmix or dsnoop plugin must be unique # If 555555 or 666666 is used by other processes, use another one pcm.!default { type asym playback.pcm "playback" capture.pcm "capture" } pcm.playback { type plug slave.pcm "dmixed" } pcm.capture { type plug slave.pcm "array" } pcm.dmixed { type dmix slave.pcm "hw:,0" ipc_key 555555 } pcm.array { type dsnoop slave { pcm "hw:,0" channels 2 } ipc_key 666666 } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA] Subdevices: 7/7 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card 0 [ALSA] Card hw:0 'ALSA'/'bcm2835 ALSA' Mixer name : 'Broadcom Mixer' Components : '' Controls : 6 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback -1993 [78%] [-19.93dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.ALSA { control.1 { iface MIXER name 'PCM Playback Volume' value -1993 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -1993 } } control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'PCM Playback Route' value 1 comment { access 'read write' type INTEGER count 1 range '0 - 2' } } control.4 { iface PCM name 'IEC958 Playback Default' value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name 'IEC958 Playback Con Mask' value '0200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access read type IEC958 count 1 } } control.6 { iface PCM name 'IEC958 Playback PCM Stream' value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write inactive' type IEC958 count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module joydev hidp evdev aes_arm_bs crypto_simd cryptd algif_skcipher af_alg fuse rfcomm cmac uhid bnep hci_uart bluetooth ecdh_generic snd_soc_bcm2835_i2s spidev spi_bcm2835 brcmfmac brcmutil cfg80211 rfkill snd_bcm2835 i2c_bcm2835 uio_pdrv_genirq fixed uio snd_soc_simple_card snd_soc_simple_card_utils snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd i2c_dev ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 2.934478] systemd-journald[87]: Received request to flush runtime journal from PID 1 [ 3.440711] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 3.445689] bcm2835_alsa bcm2835_alsa: card created with 8 channels