!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Thu Sep 3 17:20:10 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 1:6.18.39-1 rpt1 (2026-07-29) Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.18.39 rpt-rpi-v8 Library version: 1.2.14 Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- vc4 (card 0) vc4 (card 1) snd_soc_rpi_wm8804_soundcard (card 2) !!Sound Servers on this system !!---------------------------- No sound servers found. !!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 [sndrpihifiberry]: RPi-WM8804 - snd_rpi_hifiberry_digi snd_rpi_hifiberry_digi !!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 : (null) !!Module: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : (null) !!Module: snd_soc_rpi_wm8804_soundcard * : !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: /sys/class/sound/card0 |-- controlC0 | |-- dev | |-- device -> ../../card0 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../fef00700.hdmi |-- id |-- input1 | |-- capabilities | |-- device -> ../../card0 | |-- event1 | |-- id | |-- inhibited | |-- modalias | |-- name | |-- phys | |-- power | |-- properties | |-- subsystem -> ../../../../../../../class/input | |-- uevent | `-- uniq |-- number |-- pcmC0D0p | |-- dev | |-- device -> ../../card0 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../class/sound `-- uevent !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: /sys/class/sound/card1 |-- controlC1 | |-- dev | |-- device -> ../../card1 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../fef05700.hdmi |-- id |-- input3 | |-- capabilities | |-- device -> ../../card1 | |-- event3 | |-- id | |-- inhibited | |-- modalias | |-- name | |-- phys | |-- power | |-- properties | |-- subsystem -> ../../../../../../../class/input | |-- uevent | `-- uniq |-- number |-- pcmC1D0p | |-- dev | |-- device -> ../../card1 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../class/sound `-- uevent !!Card: /sys/class/sound/card2 Driver: /sys/bus/platform/drivers/snd-rpi-wm8804 Tree: /sys/class/sound/card2 |-- controlC2 | |-- dev | |-- device -> ../../card2 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../soc:sound |-- id |-- number |-- pcmC2D0c | |-- dev | |-- device -> ../../card2 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- pcmC2D0p | |-- dev | |-- device -> ../../card2 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../class/sound `-- uevent !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Sep 4 01:12 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Sep 4 01:12 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 8 Sep 4 01:12 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 2 Sep 4 01:12 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Sep 4 01:12 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 7 Sep 4 01:12 /dev/snd/pcmC2D0c crw-rw---- 1 root audio 116, 6 Sep 4 01:12 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 1 Sep 4 01:12 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Sep 4 01:12 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Sep 4 01:12 . drwxr-xr-x 3 root root 240 Sep 4 01:12 .. lrwxrwxrwx 1 root root 12 Sep 4 01:12 platform-fef00700.hdmi -> ../controlC0 lrwxrwxrwx 1 root root 12 Sep 4 01:12 platform-fef05700.hdmi -> ../controlC1 lrwxrwxrwx 1 root root 12 Sep 4 01:12 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: sndrpihifiberry [snd_rpi_hifiberry_digi], device 0: HifiBerry Digi HiFi wm8804-spdif-0 [HifiBerry Digi HiFi wm8804-spdif-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 2: sndrpihifiberry [snd_rpi_hifiberry_digi], device 0: HifiBerry Digi HiFi wm8804-spdif-0 [HifiBerry Digi HiFi wm8804-spdif-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 sndrpihifiberry Card sysdefault:2 'sndrpihifiberry'/'snd_rpi_hifiberry_digi' Mixer name : '' Components : '' Controls : 1 Simple ctrls : 1 Simple mixer control 'Tx Source',0 Capabilities: enum Items: 'S/PDIF RX' 'AIF' Item0: 'AIF' !!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 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.sndrpihifiberry { control.1 { iface MIXER name 'Tx Source' value AIF comment { access 'read write' type ENUMERATED count 1 item.0 'S/PDIF RX' item.1 AIF } } } --endcollapse-- !!All Loaded Modules !!------------------ backlight bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 binfmt_misc cec drm drm_client_lib drm_display_helper drm_dma_helper drm_exec drm_kms_helper drm_panel_orientation_quirks drm_shmem_helper fuse gpu_sched i2c_bcm2835 i2c_brcmstb i2c_dev ipv6 libsha1 lz4_compress mc nfnetlink nvmem_rmem raspberrypi_gpiomem raspberrypi_hwmon regmap_i2c rfkill rpi_hevc_dec sch_fq_codel snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_bcm2835_i2s snd_soc_core snd_soc_hdmi_codec snd_soc_rpi_wm8804_soundcard snd_soc_wm8804 snd_soc_wm8804_i2c snd_timer v3d 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 numa_policy=interleave nvme.max_host_mem_size_mb=32 snd_bcm2835.enable_hdmi=0 numa=fake=2 system_heap.max_order=0 iommu_dma_numa_policy=interleave smsc95xx.macaddr=DC:A6:32:9F:80:5B vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyAMA0,115200 console=tty1 root=PARTUUID=01d1908a-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=CN [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 5.240610] rpi-gpiomem fe200000.gpiomem: initialised 1 regions as /dev/gpiomem [ 5.252529] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 5.286532] mc: Linux media interface: v0.10 -- [ 6.055525] input: vc4-hdmi-0 as /devices/platform/soc/fef00700.hdmi/rc/rc0/input0 [ 6.064345] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc/fef00700.hdmi/sound/card0/input1 [ 6.073150] vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 6.110373] input: vc4-hdmi-1 as /devices/platform/soc/fef05700.hdmi/rc/rc1/input2 [ 6.121443] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc/fef05700.hdmi/sound/card1/input3 [ 6.126900] vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4]) !!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 hi bluez-alsa-utils 4.3.1-3 arm64 Bluetooth Audio ALSA Backend (utils)