!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Mon Jan 19 17:35:04 UTC 2026 !!Linux Distribution !!------------------ Debian GNU/Linux 13 \n \l PRETTY_NAME="Debian GNU/Linux 13 (trixie)" NAME="Debian GNU/Linux" DEBIAN_VERSION_FULL=13.2 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 !!--------------- !!ACPI SoundWire Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: #1 SMP PREEMPT Debian 1:6.12.47-1 rpt1 (2025-09-16) Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.12.47 rpt-rpi-v8 Library version: 1.2.14 Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- vc4 (card 0) vc4 (card 1) snd_soc_audioinjector_pi_soundcard (card 2) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0 vc4-hdmi-0 1 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1 vc4-hdmi-1 2 [audioinjectorpi]: audioinjector-p - audioinjector-pi-soundcard audioinjector-pi-soundcard !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_bcm2835: enable_headphones=0 snd_bcm2835: enable_hdmi=0 !!Loaded sound module options !!--------------------------- !!Module: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : !!Module: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : !!Module: snd_soc_audioinjector_pi_soundcard * : !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: !!Card: /sys/class/sound/card2 Driver: /sys/bus/platform/drivers/audioinjector-stereo Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Jan 19 15:24 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Jan 19 15:24 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 8 Jan 19 15:24 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 2 Jan 19 15:24 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Jan 19 15:24 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 7 Jan 19 15:24 /dev/snd/pcmC2D0c crw-rw---- 1 root audio 116, 6 Jan 19 15:24 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 1 Jan 19 15:25 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jan 19 15:24 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Jan 19 15:24 . drwxr-xr-x 3 root root 240 Jan 19 15:24 .. lrwxrwxrwx 1 root root 12 Jan 19 15:24 platform-fef00700.hdmi -> ../controlC0 lrwxrwxrwx 1 root root 12 Jan 19 15:24 platform-fef05700.hdmi -> ../controlC1 lrwxrwxrwx 1 root root 12 Jan 19 15:24 platform-soc:sound -> ../controlC2 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: audioinjectorpi [audioinjector-pi-soundcard], device 0: AudioInjector audio wm8731-hifi-0 [AudioInjector audio wm8731-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 2: audioinjectorpi [audioinjector-pi-soundcard], device 0: AudioInjector audio wm8731-hifi-0 [AudioInjector audio wm8731-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card vc4hdmi0 Card sysdefault:0 'vc4hdmi0'/'vc4-hdmi-0' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!-------Mixer controls for card vc4hdmi1 Card sysdefault:1 'vc4hdmi1'/'vc4-hdmi-1' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!-------Mixer controls for card audioinjectorpi Card sysdefault:2 'audioinjectorpi'/'audioinjector-pi-soundcard' Mixer name : '' Components : '' Controls : 14 Simple ctrls : 14 Simple mixer control 'Master',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 127 Mono: Front Left: Playback 127 [100%] [6.00dB] Front Right: Playback 127 [100%] [6.00dB] Simple mixer control 'Master Playback ZC',0 Capabilities: pswitch Playback channels: Front Left - Front Right Mono: Front Left: Playback [on] Front Right: Playback [on] Simple mixer control 'Sidetone',0 Capabilities: pvolume pvolume-joined Playback channels: Mono Limits: Playback 0 - 3 Mono: Playback 3 [100%] [-6.00dB] Simple mixer control 'Line',0 Capabilities: cswitch Capture channels: Front Left - Front Right Front Left: Capture [on] Front Right: Capture [on] Simple mixer control 'Mic',0 Capabilities: cswitch cswitch-joined Capture channels: Mono Mono: Capture [on] Simple mixer control 'Mic Boost',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 1 Mono: 1 [100%] [20.00dB] Simple mixer control 'Playback Deemphasis',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Capture',0 Capabilities: cvolume Capture channels: Front Left - Front Right Limits: Capture 0 - 31 Front Left: Capture 31 [100%] [12.00dB] Front Right: Capture 31 [100%] [12.00dB] Simple mixer control 'ADC High Pass Filter',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Input Mux',0 Capabilities: enum Items: 'Line In' 'Mic' Item0: 'Mic' Simple mixer control 'Output Mixer HiFi',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Output Mixer Line Bypass',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Output Mixer Mic Sidetone',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Store DC Offset',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] !!Alsactl output !!-------------- --startcollapse-- state.vc4hdmi0 { control.1 { iface CARD name 'HDMI Jack' value false comment { access read type BOOLEAN count 1 } } control.2 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 value.2 0 value.3 0 value.4 0 value.5 0 value.6 0 value.7 0 comment { access 'read volatile' type INTEGER count 8 range '0 - 36' } } control.3 { iface PCM name 'IEC958 Playback Mask' value ffffffffffffffffffffffffffffffffffffffffffffffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 comment { access read type IEC958 count 1 } } control.4 { iface PCM name 'IEC958 Playback Default' value '0400000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name ELD value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read volatile' type BYTES count 128 } } } state.vc4hdmi1 { control.1 { iface CARD name 'HDMI Jack' value true comment { access read type BOOLEAN count 1 } } control.2 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 value.2 0 value.3 0 value.4 0 value.5 0 value.6 0 value.7 0 comment { access 'read volatile' type INTEGER count 8 range '0 - 36' } } control.3 { iface PCM name 'IEC958 Playback Mask' value ffffffffffffffffffffffffffffffffffffffffffffffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 comment { access read type IEC958 count 1 } } control.4 { iface PCM name 'IEC958 Playback Default' value '0400000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name ELD value '100008006b10000100000000000000002157302148444d4920544f2055534209070700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read volatile' type BYTES count 128 } } } state.audioinjectorpi { control.1 { iface MIXER name 'Master Playback Volume' value.0 127 value.1 127 comment { access 'read write' type INTEGER count 2 range '0 - 127' dbmin -9999999 dbmax 600 dbvalue.0 600 dbvalue.1 600 } } control.2 { iface MIXER name 'Master Playback ZC Switch' value.0 true value.1 true comment { access 'read write' type BOOLEAN count 2 } } control.3 { iface MIXER name 'Capture Volume' value.0 31 value.1 31 comment { access 'read write' type INTEGER count 2 range '0 - 31' dbmin -3450 dbmax 1200 dbvalue.0 1200 dbvalue.1 1200 } } control.4 { iface MIXER name 'Line Capture Switch' value.0 true value.1 true comment { access 'read write' type BOOLEAN count 2 } } control.5 { iface MIXER name 'Mic Boost Volume' value 1 comment { access 'read write' type INTEGER count 1 range '0 - 1' dbmin 0 dbmax 2000 dbvalue.0 2000 } } control.6 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.7 { iface MIXER name 'Sidetone Playback Volume' value 3 comment { access 'read write' type INTEGER count 1 range '0 - 3' dbmin -1500 dbmax -600 dbvalue.0 -600 } } control.8 { iface MIXER name 'ADC High Pass Filter Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.9 { iface MIXER name 'Store DC Offset Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.10 { iface MIXER name 'Playback Deemphasis Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.11 { iface MIXER name 'Output Mixer Line Bypass Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.12 { iface MIXER name 'Output Mixer Mic Sidetone Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.13 { iface MIXER name 'Output Mixer HiFi Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.14 { iface MIXER name 'Input Mux' value Mic comment { access 'read write' type ENUMERATED count 1 item.0 'Line In' item.1 Mic } } } --endcollapse-- !!All Loaded Modules !!------------------ aes_arm64 aes_generic af_alg algif_hash algif_skcipher backlight bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 binfmt_misc bluetooth bnep brcmfmac brcmfmac_wcc brcmutil btbcm cec cfg80211 cmac drm drm_display_helper drm_dma_helper drm_kms_helper drm_panel_orientation_quirks drm_shmem_helper ecc ecdh_generic fuse gpu_sched hci_uart i2c_bcm2835 i2c_brcmstb i2c_dev ip_tables ipv6 joydev libaes lz4_compress mc nfnetlink nvmem_rmem raspberrypi_gpiomem raspberrypi_hwmon regmap_i2c rfcomm rfkill rpi_hevc_dec sch_fq_codel snd snd_bcm2835 snd_compress snd_hrtimer snd_pcm snd_pcm_dmaengine snd_seq snd_seq_device snd_seq_dummy snd_soc_audioinjector_pi_soundcard snd_soc_bcm2835_i2s snd_soc_core snd_soc_hdmi_codec snd_soc_wm8731 snd_soc_wm8731_i2c snd_timer squashfs 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 zram !!ALSA/HDA dmesg !!-------------- [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_headphones=0 cgroup_disable=memory numa_policy=interleave nvme.max_host_mem_size_mb=0 snd_bcm2835.enable_hdmi=0 numa=fake=2 system_heap.max_order=0 smsc95xx.macaddr=DC:A6:32:63:72:B1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=tty1 root=PARTUUID=c394eaa3-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles cfg80211.ieee80211_regdom=UA [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 11.542747] input: vc4-hdmi-0 as /devices/platform/soc/fef00700.hdmi/rc/rc0/input0 [ 11.549311] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 11.561361] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc/fef00700.hdmi/sound/card0/input1 [ 11.561698] vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 11.567470] input: vc4-hdmi-1 as /devices/platform/soc/fef05700.hdmi/rc/rc1/input2 [ 11.574763] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc/fef05700.hdmi/sound/card1/input3 [ 11.575064] vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 13.227822] wm8731 1-001a: supply DBVDD not found, using dummy regulator [ 13.239451] audioinjector-stereo soc:sound: ASoC: driver name too long 'audioinjector-pi-soundcard' -> 'audioinjector-p' [ 13.243599] audioinjector-stereo soc:sound: successfully loaded [ 13.460646] Bluetooth: hci0: BCM: features 0x2f !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-3 all ALSA topology configuration files ii alsa-ucm-conf 1.2.14-1 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.14-1 rpt1 arm64 Utilities for configuring and using ALSA