!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Sun Apr 11 05:49:21 UTC 2021 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.10.17-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.10.17-v7 Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_bcm2835 snd_bcm2835 !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [b1 ]: bcm2835_hdmi - bcm2835 HDMI 1 bcm2835 HDMI 1 1 [Headphones ]: bcm2835_headphonbcm2835 Headphones - bcm2835 Headphones bcm2835 Headphones !!PCI Soundcards installed in the system !!-------------------------------------- !!Advanced information - PCI Vendor/Device/Subsystem ID's !!------------------------------------------------------- !!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 snd_bcm2835: enable_compat_alsa=0 snd_bcm2835: enable_hdmi=1 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Apr 11 10:39 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Apr 11 10:39 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 16 Apr 11 10:39 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 48 Apr 11 10:39 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Apr 11 10:39 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Apr 11 10:39 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Apr 11 10:39 . drwxr-xr-x 3 root root 180 Apr 11 10:39 .. lrwxrwxrwx 1 root root 12 Apr 11 10:39 platform-bcm2835_audio -> ../controlC0 !!ALSA configuration files !!------------------------ !!User specific config file (~/.asoundrc) defaults.bluealsa.interface "hci0" #defaults.bluealsa.device "20:9B:A5:5E:4F:37" defaults.bluealsa.profile "a2dp" defaults.bluealsa.delay 10000 # Bluetooth headset #defaults.bluealsa { # interface "hci0" # host Bluetooth adapter # device "20:9B:A5:5E:4F:37" # Bluetooth headset MAC address # profile "a2dp" #} # Bluetooth headset pcm.btheadset { type plug slave.pcm { type bluealsa device "50:C9:71:0D:AF:5D" #device "20:9B:A5:5E:4F:37" profile "a2dp" } hint { show on description "Your description of Bluetooth Headset" } } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1] Subdevices: 4/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 4/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card 0 [b1] Card hw:0 'b1'/'bcm2835 HDMI 1' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'HDMI',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback 0 [96%] [0.00dB] [on] !!-------Mixer controls for card 1 [Headphones] Card hw:1 'Headphones'/'bcm2835 Headphones' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'Headphone',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback -2000 [77%] [-20.00dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.b1 { control.1 { iface MIXER name 'HDMI Playback Volume' value 0 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 0 } } control.2 { iface MIXER name 'HDMI Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value -2000 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -2000 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module sg uas fuse rfcomm bnep hci_uart btbcm bluetooth rpcsec_gss_krb5 ecdh_generic ecc zstd zstd_compress ghash_generic gf128mul gcm ccm algif_aead aes_arm_bs crypto_simd cryptd algif_skcipher cmac md5 md4 algif_hash af_alg 8021q garp stp llc hid_logitech_hidpp joydev hid_logitech_dj brcmfmac brcmutil sha256_generic cfg80211 rfkill raspberrypi_hwmon snd_bcm2835 bcm2835_codec bcm2835_v4l2 bcm2835_isp v4l2_mem2mem bcm2835_mmal_vchiq snd_pcm videobuf2_dma_contig videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_timer videobuf2_common snd videodev mc vc_sm_cma uio_pdrv_genirq uio fixed uinput i2c_dev ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 194880 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=1920 bcm2708_fb.fbheight=1080 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 zswap.enabled=1 zswap.zpool=zbud zswap.compressor=zstd console=ttyS0,115200 console=tty1 root=PARTUUID=40928e84-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait [ 0.000000] Kernel parameter elevator= does not have any effect anymore. -- [ 8.647736] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp [ 8.652361] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 8.658511] bcm2835-codec bcm2835-codec: Device registered as /dev/video10