!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Mon Mar 23 23:58:37 UTC 2026 !!Linux Distribution !!------------------ Debian GNU/Linux 13 \n \l PRETTY_NAME="Debian GNU/Linux 13 (trixie)" NAME="Debian GNU/Linux" DEBIAN_VERSION_FULL=13.4 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: #4 SMP PREEMPT Wed Feb 4 17:42:32 EST 2026 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.12.67-v8-16k Library version: 1.2.14 Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- snd_soc_simple_card (card 0) vc4 (card 1) vc4 (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 [RP1AudioOut ]: simple-card - RP1-Audio-Out RP1-Audio-Out 1 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0 vc4-hdmi-0 2 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1 vc4-hdmi-1 !!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 !!Loaded sound module options !!--------------------------- !!Module: snd_soc_simple_card * : !!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) !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/asoc-simple-card Tree: !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: !!Card: /sys/class/sound/card2 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Mar 23 08:50 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Mar 23 08:50 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 7 Mar 23 08:50 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 2 Mar 23 08:50 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Mar 23 08:50 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 6 Mar 23 08:50 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 1 Mar 23 08:51 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Mar 23 08:50 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Mar 23 08:50 . drwxr-xr-x 3 root root 220 Mar 23 08:50 .. lrwxrwxrwx 1 root root 12 Mar 23 08:50 platform-107c701400.hdmi -> ../controlC1 lrwxrwxrwx 1 root root 12 Mar 23 08:50 platform-107c706400.hdmi -> ../controlC2 lrwxrwxrwx 1 root root 12 Mar 23 08:50 platform-rp1_audio_out_simple_card@0 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: RP1AudioOut [RP1-Audio-Out], device 0: rp1-aout-dit-hifi dit-hifi-0 [rp1-aout-dit-hifi dit-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: vc4hdmi0 [vc4-hdmi-0], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: vc4hdmi1 [vc4-hdmi-1], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card RP1AudioOut Card sysdefault:0 'RP1AudioOut'/'RP1-Audio-Out' Mixer name : '' Components : '' Controls : 0 Simple ctrls : 0 !!-------Mixer controls for card vc4hdmi0 Card sysdefault:1 'vc4hdmi0'/'vc4-hdmi-0' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!-------Mixer controls for card vc4hdmi1 Card sysdefault:2 'vc4hdmi1'/'vc4-hdmi-1' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- state.RP1AudioOut { control { } } 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 } } } --endcollapse-- !!All Loaded Modules !!------------------ aes_ce_blk aes_ce_ccm aes_ce_cipher af_alg algif_hash algif_skcipher axp20x_ac_power axp20x_adc axp20x_battery backlight binfmt_misc bluetooth bnep brcmfmac brcmfmac_wcc brcmutil btbcm btintel btmtk btrtl btusb cdc_acm cec cfg80211 cn drm drm_display_helper drm_dma_helper drm_kms_helper drm_panel_orientation_quirks drm_rp1_dsi drm_shmem_helper drm_ttm_helper ecc ecdh_generic fuse gf128mul ghash_ce gpio_keys gpu_sched hci_uart i2c_algo_bit i2c_brcmstb i2c_designware_core i2c_designware_platform i2c_dev i2c_gpio industrialio ip_tables ipv6 joydev libaes libarc4 lz4_compress mac80211 mc mt76 mt76_connac_lib mt76_usb mt7921_common mt7921u mt792x_lib mt792x_usb nfnetlink nvmem_rmem ocp8178_bl panel_cwu50 pisp_be raspberrypi_gpiomem raspberrypi_hwmon rfcomm rfkill rp1_adc rp1_aout rp1_fw rp1_mailbox rp1_pio rpi_hevc_dec rtc_pcf85063 sch_fq_codel sha1_ce sha1_generic sha256_arm64 sha2_ce snd snd_compress snd_hrtimer snd_pcm snd_pcm_dmaengine snd_seq snd_seq_device snd_seq_dummy snd_soc_core snd_soc_hdmi_codec snd_soc_simple_card snd_soc_simple_card_utils snd_soc_spdif_tx snd_timer spi_bcm2835 spi_dw spi_dw_mmio spidev ttm uio uio_pdrv_genirq v3d v4l2_mem2mem vc4 videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videodev w1_gpio wire x_tables zram !!ALSA/HDA dmesg !!-------------- [ 4.164924] rpi-hevc-dec 1000800000.codec: Device registered as /dev/video19 [ 4.176108] rp1-audio-out 1f00094000.audio_out: rp1_aout_platform_probe [ 4.210754] vc4_hvs 107c580000.hvs: bcm2712_iommu_of_xlate: MMU 1000005200.iommu -- [ 4.331383] input: vc4-hdmi-0 as /devices/platform/soc@107c000000/107c701400.hdmi/rc/rc0/input4 [ 4.351105] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc@107c000000/107c701400.hdmi/sound/card1/input5 [ 4.355996] vc4-drm axi:gpu: bound 107c701400.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 4.359217] input: vc4-hdmi-1 as /devices/platform/soc@107c000000/107c706400.hdmi/rc/rc1/input6 [ 4.362463] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc@107c000000/107c706400.hdmi/sound/card2/input7 [ 4.364079] vc4-drm axi:gpu: bound 107c706400.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 7.617272] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled [ 9.802743] rp1-audio-out 1f00094000.audio_out: RP1 Audio Out start [ 10.333398] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save disabled !!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