!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Tue Jun 18 22:34:38 UTC 2019 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: !!Kernel Information !!------------------ Kernel release: 4.19.42-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.19.42-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 Jun 18 22:05 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 16 Jun 18 22:05 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 17 Jun 18 22:05 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 1 Jun 18 22:05 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jun 18 22:05 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Jun 18 22:05 . drwxr-xr-x 3 root root 160 Jun 18 22:05 .. lrwxrwxrwx 1 root root 12 Jun 18 22:05 platform-soc:audio -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY aplay: device_list:270: no soundcards found... ARECORD arecord: device_list:270: no soundcards found... !!Amixer output !!------------- !!-------Mixer controls for card 0 [ALSA] Invalid card number. Usage: amixer [command] Available options: -h,--help this help -c,--card N select the card -D,--device N select the device, default 'default' -d,--debug debug mode -n,--nocheck do not perform range checking -v,--version print version of this program -q,--quiet be quiet -i,--inactive show also inactive controls -a,--abstract L select abstraction level (none or basic) -s,--stdin Read and execute commands from stdin sequentially -R,--raw-volume Use the raw value (default) -M,--mapped-volume Use the mapped volume Available commands: scontrols show all mixer simple controls scontents show contents of all mixer simple controls (default command) sset sID P set contents for one mixer simple control sget sID get contents for one mixer simple control controls show all controls for given card contents show contents of all controls for given card cset cID P set control contents for one control cget cID get control contents for one control Invalid card number. Usage: amixer [command] Available options: -h,--help this help -c,--card N select the card -D,--device N select the device, default 'default' -d,--debug debug mode -n,--nocheck do not perform range checking -v,--version print version of this program -q,--quiet be quiet -i,--inactive show also inactive controls -a,--abstract L select abstraction level (none or basic) -s,--stdin Read and execute commands from stdin sequentially -R,--raw-volume Use the raw value (default) -M,--mapped-volume Use the mapped volume Available commands: scontrols show all mixer simple controls scontents show contents of all mixer simple controls (default command) sset sID P set contents for one mixer simple control sget sID get contents for one mixer simple control controls show all controls for given card contents show contents of all controls for given card cset cID P set control contents for one control cget cID get control contents for one control !!Alsactl output !!-------------- --startcollapse-- --endcollapse-- !!All Loaded Modules !!------------------ Module brcmfmac brcmutil sha256_generic cfg80211 rfkill snd_soc_bcm2835_i2s bcm2835_codec snd_soc_core bcm2835_v4l2 snd_bcm2835 snd_compress v4l2_mem2mem snd_pcm_dmaengine bcm2835_mmal_vchiq raspberrypi_hwmon v4l2_common videobuf2_dma_contig snd_pcm videobuf2_vmalloc snd_timer videobuf2_memops snd videobuf2_v4l2 videobuf2_common vc_sm_cma videodev media fixed uio_pdrv_genirq uio w1_therm wire cn hwmon ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 5.626793] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned. [ 5.662404] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 5.662511] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.