!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Sun Jul 19 11:09:59 UTC 2026 !!Linux Distribution !!------------------ Debian GNU/Linux 13 \n \l PRETTY_NAME="Debian GNU/Linux 13 (trixie)" NAME="Debian GNU/Linux" DEBIAN_VERSION_FULL=13.6 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 1:6.18.34-1 rpt1 (2026-06-09) Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.18.34 rpt-rpi-v8 Library version: Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- vc4 (card 0) snd_soc_allo_boss_dac (card 1) !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [vc4hdmi ]: vc4-hdmi - vc4-hdmi vc4-hdmi 1 [BossDAC ]: BossDAC - BossDAC BossDAC !!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=1 snd_bcm2835: enable_hdmi=0 !!Loaded sound module options !!--------------------------- !!Module: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : !!Module: snd_soc_allo_boss_dac * : !!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/snd-allo-boss-dac Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Jul 19 12:45 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Jul 19 12:45 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 2 Jul 19 12:45 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Jul 19 12:45 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Jul 19 12:45 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jul 19 12:45 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Jul 19 12:45 . drwxr-xr-x 3 root root 180 Jul 19 12:45 .. lrwxrwxrwx 1 root root 12 Jul 19 12:45 platform-3f902000.hdmi -> ../controlC0 lrwxrwxrwx 1 root root 12 Jul 19 12:45 platform-soc:sound -> ../controlC1 !!ALSA configuration files !!------------------------ !!User specific config file (~/.asoundrc) pcm.!default { type asym playback.pcm { type plug slave.pcm "output" } capture.pcm { type plug slave.pcm "input" } } pcm.output { type hw card 1 } ctl.!default { type hw card 1 } !!System wide config file (/etc/asound.conf) pcm.!default { type hw card 1 } ctl.!default { type hw card 1 } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: vc4hdmi [vc4-hdmi], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: BossDAC [BossDAC], device 0: Boss DAC HiFi [Master] pcm512x-hifi-0 [Boss DAC HiFi [Master] pcm512x-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card vc4hdmi Card sysdefault:0 'vc4hdmi'/'vc4-hdmi' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!-------Mixer controls for card BossDAC Card sysdefault:1 'BossDAC'/'BossDAC' Mixer name : '' Components : '' Controls : 20 Simple ctrls : 19 Simple mixer control 'DSP Program',0 Capabilities: enum Items: 'FIR interpolation with de-emphasis' 'Low latency IIR with de-emphasis' 'High attenuation with de-emphasis' 'Fixed process flow' 'Ringing-less low latency FIR' Item0: 'FIR interpolation with de-emphasis' Simple mixer control 'Analogue',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 1 Mono: Front Left: Playback 1 [100%] [0.00dB] Front Right: Playback 1 [100%] [0.00dB] Simple mixer control 'Analogue Playback Boost',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 1 Front Left: 1 [100%] [0.80dB] Front Right: 1 [100%] [0.80dB] Simple mixer control 'Auto Mute',0 Capabilities: pswitch Playback channels: Front Left - Front Right Mono: Front Left: Playback [on] Front Right: Playback [on] Simple mixer control 'Auto Mute Mono',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Auto Mute Time Left',0 Capabilities: enum Items: '21ms' '106ms' '213ms' '533ms' '1.07s' '2.13s' '5.33s' '10.66s' Item0: '21ms' Simple mixer control 'Auto Mute Time Right',0 Capabilities: enum Items: '21ms' '106ms' '213ms' '533ms' '1.07s' '2.13s' '5.33s' '10.66s' Item0: '21ms' Simple mixer control 'Clock Missing Period',0 Capabilities: enum Items: '1s' '2s' '3s' '4s' '5s' '6s' '7s' '8s' Item0: '1s' Simple mixer control 'Deemphasis',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Digital',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 207 Mono: Front Left: Playback 207 [100%] [0.00dB] [on] Front Right: Playback 207 [100%] [0.00dB] [on] Simple mixer control 'Max Overclock DAC',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 40 Mono: 2 [5%] Simple mixer control 'Max Overclock DSP',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 40 Mono: 1 [2%] Simple mixer control 'Max Overclock PLL',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 20 Mono: 1 [5%] Simple mixer control 'Volume Ramp Down Emergency Rate',0 Capabilities: enum Items: '1 sample/update' '2 samples/update' '4 samples/update' 'Immediate' Item0: '1 sample/update' Simple mixer control 'Volume Ramp Down Emergency Step',0 Capabilities: enum Items: '4dB/step' '2dB/step' '1dB/step' '0.5dB/step' Item0: '4dB/step' Simple mixer control 'Volume Ramp Down Rate',0 Capabilities: enum Items: '1 sample/update' '2 samples/update' '4 samples/update' 'Immediate' Item0: '1 sample/update' Simple mixer control 'Volume Ramp Down Step',0 Capabilities: enum Items: '4dB/step' '2dB/step' '1dB/step' '0.5dB/step' Item0: '1dB/step' Simple mixer control 'Volume Ramp Up Rate',0 Capabilities: enum Items: '1 sample/update' '2 samples/update' '4 samples/update' 'Immediate' Item0: '1 sample/update' Simple mixer control 'Volume Ramp Up Step',0 Capabilities: enum Items: '4dB/step' '2dB/step' '1dB/step' '0.5dB/step' Item0: '1dB/step' !!Alsactl output !!-------------- --startcollapse-- state.vc4hdmi { 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.BossDAC { control.1 { iface MIXER name 'Digital Playback Volume' value.0 207 value.1 207 comment { access 'read write' type INTEGER count 2 range '0 - 207' dbmin -9999999 dbmax 0 dbvalue.0 0 dbvalue.1 0 } } control.2 { iface MIXER name 'Analogue Playback Volume' value.0 1 value.1 1 comment { access 'read write' type INTEGER count 2 range '0 - 1' dbmin -600 dbmax 0 dbvalue.0 0 dbvalue.1 0 } } control.3 { iface MIXER name 'Analogue Playback Boost Volume' value.0 1 value.1 1 comment { access 'read write' type INTEGER count 2 range '0 - 1' dbmin 0 dbmax 80 dbvalue.0 80 dbvalue.1 80 } } control.4 { iface MIXER name 'Digital Playback Switch' value.0 true value.1 true comment { access 'read write' type BOOLEAN count 2 } } control.5 { iface MIXER name 'Deemphasis Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.6 { iface MIXER name 'DSP Program' value 'FIR interpolation with de-emphasis' comment { access 'read write' type ENUMERATED count 1 item.0 'FIR interpolation with de-emphasis' item.1 'Low latency IIR with de-emphasis' item.2 'High attenuation with de-emphasis' item.3 'Fixed process flow' item.4 'Ringing-less low latency FIR' } } control.7 { iface MIXER name 'Clock Missing Period' value '1s' comment { access 'read write' type ENUMERATED count 1 item.0 '1s' item.1 '2s' item.2 '3s' item.3 '4s' item.4 '5s' item.5 '6s' item.6 '7s' item.7 '8s' } } control.8 { iface MIXER name 'Auto Mute Time Left' value '21ms' comment { access 'read write' type ENUMERATED count 1 item.0 '21ms' item.1 '106ms' item.2 '213ms' item.3 '533ms' item.4 '1.07s' item.5 '2.13s' item.6 '5.33s' item.7 '10.66s' } } control.9 { iface MIXER name 'Auto Mute Time Right' value '21ms' comment { access 'read write' type ENUMERATED count 1 item.0 '21ms' item.1 '106ms' item.2 '213ms' item.3 '533ms' item.4 '1.07s' item.5 '2.13s' item.6 '5.33s' item.7 '10.66s' } } control.10 { iface MIXER name 'Auto Mute Mono Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.11 { iface MIXER name 'Auto Mute Switch' value.0 true value.1 true comment { access 'read write' type BOOLEAN count 2 } } control.12 { iface MIXER name 'Volume Ramp Down Rate' value '1 sample/update' comment { access 'read write' type ENUMERATED count 1 item.0 '1 sample/update' item.1 '2 samples/update' item.2 '4 samples/update' item.3 Immediate } } control.13 { iface MIXER name 'Volume Ramp Down Step' value '1dB/step' comment { access 'read write' type ENUMERATED count 1 item.0 '4dB/step' item.1 '2dB/step' item.2 '1dB/step' item.3 '0.5dB/step' } } control.14 { iface MIXER name 'Volume Ramp Up Rate' value '1 sample/update' comment { access 'read write' type ENUMERATED count 1 item.0 '1 sample/update' item.1 '2 samples/update' item.2 '4 samples/update' item.3 Immediate } } control.15 { iface MIXER name 'Volume Ramp Up Step' value '1dB/step' comment { access 'read write' type ENUMERATED count 1 item.0 '4dB/step' item.1 '2dB/step' item.2 '1dB/step' item.3 '0.5dB/step' } } control.16 { iface MIXER name 'Volume Ramp Down Emergency Rate' value '1 sample/update' comment { access 'read write' type ENUMERATED count 1 item.0 '1 sample/update' item.1 '2 samples/update' item.2 '4 samples/update' item.3 Immediate } } control.17 { iface MIXER name 'Volume Ramp Down Emergency Step' value '4dB/step' comment { access 'read write' type ENUMERATED count 1 item.0 '4dB/step' item.1 '2dB/step' item.2 '1dB/step' item.3 '0.5dB/step' } } control.18 { iface MIXER name 'Max Overclock PLL' value 1 comment { access 'read write' type INTEGER count 1 range '0 - 20' } } control.19 { iface MIXER name 'Max Overclock DSP' value 1 comment { access 'read write' type INTEGER count 1 range '0 - 40' } } control.20 { iface MIXER name 'Max Overclock DAC' value 2 comment { access 'read write' type INTEGER count 1 range '0 - 40' } } } --endcollapse-- !!All Loaded Modules !!------------------ aes_arm64 af_alg algif_hash algif_skcipher backlight bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 binfmt_misc bluetooth bnep brcmfmac brcmfmac_cyw brcmutil btbcm cec cfg80211 clk_hifiberry_dacpro cmac dm_mod drm drm_client_lib drm_display_helper drm_dma_helper drm_exec drm_kms_helper drm_panel_orientation_quirks ecc ecdh_generic fuse hci_uart i2c_bcm2835 ipv6 libsha1 lz4_compress mc nfnetlink raspberrypi_gpiomem raspberrypi_hwmon regmap_i2c rfcomm rfkill sch_fq_codel snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_allo_boss_dac snd_soc_bcm2835_i2s snd_soc_core snd_soc_hdmi_codec snd_soc_pcm512x snd_soc_pcm512x_i2c snd_timer v4l2_mem2mem vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev zram !!ALSA/HDA dmesg !!-------------- [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 cgroup_disable=memory snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0 smsc95xx.macaddr=B8:27:EB:DF:24:90 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000 console=ttyS0,115200 console=tty1 root=PARTUUID=cc5ab7fa-02 rootfstype=ext4 fsck.repair=yes rootwait ds=nocloud;i=rpi-imager-1775903484381 cfg80211.ieee80211_regdom=FR [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 7.466366] systemd[1]: Detected architecture arm64. [ 7.494973] systemd[1]: Hostname set to . [ 8.007931] systemd[1]: bpf-restrict-fs: BPF LSM hook not enabled in the kernel, BPF LSM not supported. -- [ 14.554459] videodev: Linux video capture interface: v2.00 [ 14.556023] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 14.649389] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned. -- [ 14.710951] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned. [ 14.710966] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 14.716289] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned. -- [ 14.748402] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp [ 14.748943] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 14.748997] bcm2835-codec bcm2835-codec: Device registered as /dev/video12 -- [ 14.758696] bcm2835-codec bcm2835-codec: Loaded V4L2 encode_image [ 14.759631] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 14.963107] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.077714] Bluetooth: hci0: BCM: chip id 115 -- [ 15.207812] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 15.207898] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.241422] Loaded X.509 cert 'benh@debian.org: 577e021cb980e0e820821ba7b54b4961b8b4fadf' -- [ 15.248257] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 15.257822] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.258484] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.262389] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.270667] Console: switching to colour dummy device 80x25 [ 15.285979] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4]) [ 15.295060] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.296403] Registered IR keymap rc-cec -- [ 15.296920] input: vc4-hdmi as /devices/platform/soc/3f902000.hdmi/rc/rc0/input0 [ 15.345428] input: vc4-hdmi HDMI Jack as /devices/platform/soc/3f902000.hdmi/sound/card0/input1 [ 15.345881] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.348150] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 15.424189] vc4-drm soc:gpu: [drm] Cannot find any crtc or sizes [ 15.425819] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.428219] vc4-drm soc:gpu: [drm] Cannot find any crtc or sizes [ 15.531479] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.548520] brcmfmac: F1 signature read @0x18000000=0x1542a9a6 [ 15.597768] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430b0-sdio for chip BCM43430/2 [ 15.599215] snd-allo-boss-dac soc:sound: snd_soc_register_card() failed: -517 [ 15.600772] usbcore: registered new interface driver brcmfmac !!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