!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Sat Jul 11 22:08:50 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-2712 Library version: 1.2.14 Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- vc4 (card 0) vc4 (card 1) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes 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 !!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_usb_audio: nrpacks=1 !!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 : !!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: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Jul 12 00:03 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Jul 12 00:03 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 2 Jul 12 00:03 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Jul 12 00:03 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Jul 12 00:03 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jul 12 00:03 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Jul 12 00:06 . drwxr-xr-x 3 root root 180 Jul 12 00:06 .. lrwxrwxrwx 1 root root 12 Jul 12 00:03 platform-107c701400.hdmi -> ../controlC0 lrwxrwxrwx 1 root root 12 Jul 12 00:03 platform-107c706400.hdmi -> ../controlC1 !!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 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card vc4hdmi0 Card sysdefault:0 'vc4hdmi0'/'vc4-hdmi-0' Mixer name : '' Components : '' Controls : 6 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 255 [100%] [0.00dB] Front Right: Playback 255 [100%] [0.00dB] !!-------Mixer controls for card vc4hdmi1 Card sysdefault:1 'vc4hdmi1'/'vc4-hdmi-1' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- state.vc4hdmi0 { 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 '0482000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name ELD value '100008006c1000010000000000000000342301014d4143524f53494c49434f4e090707000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read volatile' type BYTES count 128 } } control.6 { iface MIXER name 'PCM Playback Volume' value.0 255 value.1 255 comment { access 'read write user' type INTEGER count 2 range '0 - 255' tlv '0000000100000008ffffec1400000014' dbmin -5100 dbmax 0 dbvalue.0 0 dbvalue.1 0 } } } 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_cipher af_alg algif_hash algif_skcipher backlight binfmt_misc bluetooth bnep brcmfmac brcmfmac_cyw brcmutil bridge btbcm cec cfg80211 cp210x drm drm_client_lib drm_display_helper drm_dma_helper drm_exec drm_kms_helper drm_panel_orientation_quirks drm_shmem_helper ecc ecdh_generic ff_memless fuse gf128mul ghash_ce gpio_keys gpu_sched hci_uart hid_microsoft i2c_brcmstb i2c_designware_core i2c_designware_platform i2c_dev ip_set ipv6 joydev libsha1 llc lz4_compress mc nf_conntrack nf_conntrack_netlink nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nf_tables nfnetlink nft_chain_nat nft_compat nvmem_rmem overlay pisp_be pwm_fan raspberrypi_gpiomem raspberrypi_hwmon rfcomm rfkill rp1_adc rp1_fw rp1_mailbox rp1_pio rpi_hevc_dec sch_fq snd snd_compress snd_hrtimer snd_hwdep snd_pcm snd_pcm_dmaengine snd_rawmidi snd_seq snd_seq_device snd_seq_dummy snd_soc_core snd_soc_hdmi_codec snd_timer snd_usb_audio snd_usbmidi_lib spi_bcm2835 spi_dw spi_dw_mmio spidev stp usbserial v3d v4l2_mem2mem vc4 veth videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videodev x_tables xfrm_algo xfrm_user xt_MASQUERADE xt_addrtype xt_conntrack xt_set zram !!ALSA/HDA dmesg !!-------------- [ 0.894120] input: vc4-hdmi-0 as /devices/platform/soc@107c000000/107c701400.hdmi/rc/rc0/input0 [ 0.895153] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc@107c000000/107c701400.hdmi/sound/card0/input1 [ 0.897116] vc4-drm axi:gpu: bound 107c701400.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 0.898392] input: vc4-hdmi-1 as /devices/platform/soc@107c000000/107c706400.hdmi/rc/rc1/input2 [ 0.899193] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc@107c000000/107c706400.hdmi/sound/card1/input3 [ 0.900461] vc4-drm axi:gpu: bound 107c706400.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 2.689822] systemd[1]: Found device dev-dri-renderD128.device - /dev/dri/renderD128. [ 2.703384] snd_usb_audio: unknown parameter 'nrpacks' ignored [ 2.707745] usb 3-1: cp210x converter now attached to ttyUSB0 -- [ 2.811099] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6 [ 2.834591] usbcore: registered new interface driver snd-usb-audio [ 2.837573] rpi-hevc-dec 1000800000.codec: Device registered as /dev/video19 -- [ 303.020307] WARNING: CPU: 1 PID: 6696 at drivers/firmware/raspberrypi.c:131 rpi_firmware_property_list 0x20c/0x298 [ 303.020319] Modules linked in: nf_conntrack_netlink veth xt_conntrack xt_MASQUERADE bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables snd_seq_dummy snd_hrtimer snd_seq overlay rfcomm algif_hash algif_skcipher af_alg bnep binfmt_misc joydev brcmfmac_cyw hci_uart btbcm bluetooth ecdh_generic ecc aes_ce_blk aes_ce_cipher ghash_ce gf128mul rpi_hevc_dec brcmfmac brcmutil cfg80211 v4l2_mem2mem raspberrypi_hwmon pisp_be rfkill videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 spi_bcm2835 hid_microsoft snd_usb_audio ff_memless snd_hwdep cp210x snd_usbmidi_lib gpio_keys videodev snd_rawmidi snd_seq_device videobuf2_common usbserial i2c_designware_platform pwm_fan i2c_designware_core mc rp1_mailbox rp1_pio raspberrypi_gpiomem rp1_fw nvmem_rmem rp1_adc spi_dw_mmio spi_dw sch_fq spidev i2c_dev zram fuse lz4_compress nfnetlink ipv6 libsha1 vc4 snd_soc_hdmi_codec drm_client_lib snd_soc_core snd_compress snd_pcm_dmaengine [ 303.020409] snd_pcm snd_timer snd drm_exec drm_display_helper drm_dma_helper v3d cec drm_shmem_helper drm_kms_helper gpu_sched drm i2c_brcmstb drm_panel_orientation_quirks backlight [ 303.020426] CPU: 1 UID: 1000 PID: 6696 Comm: vcgencmd Not tainted 6.18.34 rpt-rpi-2712 #1 PREEMPT Debian 1:6.18.34-1 rpt1 !!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