!!################################ !!ALSA Information Script v 0.4.65 !!################################ !!Script ran on: Sat Nov 14 13:31:55 UTC 2020 !!Linux Distribution !!------------------ Debian GNU/Linux 10 \n \l PRETTY_NAME="Debian GNU/Linux 10 (buster)" NAME="Debian GNU/Linux" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/" !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.4.72-v8 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.4.72-v8 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 - Yes !!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 !!-------------------------------------- !!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 snd_bcm2835: enable_headphones=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 Nov 14 22:25 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Nov 14 22:25 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 16 Nov 14 22:25 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 48 Nov 14 22:25 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Nov 14 22:25 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Nov 14 22:25 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Nov 14 22:25 . drwxr-xr-x 3 root root 180 Nov 14 22:25 .. lrwxrwxrwx 1 root root 12 Nov 14 22:25 platform-bcm2835_audio -> ../controlC1 !!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 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 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 !!------------------ aes_neon_blk af_alg af_key ah4 algif_hash algif_skcipher bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 bsd_comp cast5_generic cast_common cec crc_ccitt cryptd crypto_simd ctr drm drm_kms_helper drm_panel_orientation_quirks esp4 fb_sys_fops gpu_sched ip_tables ipcomp ipt_REJECT ipv6 joydev libsha256 mc md4 md5 nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nf_reject_ipv4 nf_tables nfnetlink nft_chain_nat nft_compat nft_counter ppp_async ppp_deflate ppp_generic pppoe pppox raspberrypi_hwmon rpivid_mem sg sha256_generic slhc snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_core snd_timer syscopyarea sysfillrect sysimgblt tunnel4 uio uio_pdrv_genirq v3d v4l2_mem2mem vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev x_tables xcbc xfrm4_tunnel xfrm_ipcomp xt_MASQUERADE xt_TCPMSS xt_conntrack xt_multiport xt_state xt_tcpmss xt_tcpudp zlib_deflate !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 951300 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1 video=HDMI-A-1:1920x1080M@60 smsc95xx.macaddr=DC:A6:32:91:40:FE vc_mem.mem_base=0x3eb00000 vc_mem.mem_size=0x3ff00000 console=ttyAMA0,115200 console=tty1 root=PARTUUID=6bd365d6-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait [ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) -- [ 12.872798] mc: Linux media interface: v0.10 [ 12.991033] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 13.003424] bcm2835_audio bcm2835_audio: card created with 4 channels !!Packages installed !!-------------------- ii alsa-utils 1.1.8-2 arm64 Utilities for configuring and using ALSA