!!################################ !!ALSA Information Script v 0.5.1 !!################################ !!Script ran on: Thu Sep 18 11:19:45 UTC 2025 !!Linux Distribution !!------------------ Debian GNU/Linux 12 \n \l PRETTY_NAME="Debian GNU/Linux 12 (bookworm)" NAME="Debian GNU/Linux" 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 !!--------------- !!Kernel Information !!------------------ Kernel release: 6.12.34 rpt-rpi-2712 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.12.34 rpt-rpi-2712 Library version: 1.2.8 Utilities version: 1.2.8 !!Loaded ALSA modules !!------------------- vc4 (card 0) vc4 (card 1) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/bin/pipewire) Running - Yes Pulseaudio: Installed - Yes (/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 !!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: 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: /sys/class/sound/card0 |-- controlC0 | |-- dev | |-- device -> ../../card0 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../107c701400.hdmi |-- id |-- input2 | |-- capabilities | |-- device -> ../../card0 | |-- event2 | |-- 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 -> ../../../107c706400.hdmi |-- id |-- input4 | |-- capabilities | |-- device -> ../../card1 | |-- event4 | |-- 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 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Sep 6 09:48 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Sep 6 09:48 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 2 Sep 6 09:48 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Sep 6 09:48 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Sep 6 10:12 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Sep 6 09:48 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Sep 6 09:48 . drwxr-xr-x 3 root root 180 Sep 6 09:48 .. lrwxrwxrwx 1 root root 12 Sep 6 09:48 platform-107c701400.hdmi -> ../controlC0 lrwxrwxrwx 1 root root 12 Sep 6 09:48 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 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 '0482000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name ELD value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' 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 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 '100007006c000000000000000000000006b3c0274153555320565a3237394845000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' 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 backlight binfmt_misc bluetooth bnep brcmfmac brcmfmac_wcc brcmutil btbcm cdrom cec cfg80211 cifs cifs_arc4 cifs_md4 dm_mod drm drm_display_helper drm_dma_helper drm_kms_helper drm_panel_orientation_quirks drm_shmem_helper ecc ecdh_generic fuse gf128mul ghash_ce gpio_ir_recv gpio_keys gpu_sched hci_uart i2c_brcmstb i2c_designware_core i2c_designware_platform i2c_dev ip_tables ipv6 ir_rc6_decoder joydev libaes mc md5 netfs nls_ucs2_utils nls_utf8 nvmem_rmem pisp_be pwm_fan raspberrypi_gpiomem raspberrypi_hwmon rfcomm rfkill rp1_adc rp1_fw rp1_mailbox rp1_pio rpi_hevc_dec sg sha1_ce sha1_generic sha256_arm64 sha2_ce sha512_arm64 sha512_generic 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_timer spi_bcm2835 spi_dw spi_dw_mmio spidev sr_mod uhid uinput uio uio_pdrv_genirq v3d v4l2_mem2mem vc4 videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videodev x_tables !!ALSA/HDA dmesg !!-------------- [ 0.911777] input: vc4-hdmi-0 as /devices/platform/soc@107c000000/107c701400.hdmi/rc/rc0/input1 [ 0.912627] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc@107c000000/107c701400.hdmi/sound/card0/input2 [ 0.913605] vc4-drm axi:gpu: bound 107c701400.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 0.914809] input: vc4-hdmi-1 as /devices/platform/soc@107c000000/107c706400.hdmi/rc/rc1/input3 [ 0.915592] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc@107c000000/107c706400.hdmi/sound/card1/input4 [ 0.916711] vc4-drm axi:gpu: bound 107c706400.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 1427.900332] WARNING: CPU: 2 PID: 14518 at drivers/gpu/drm/vc4/vc4_hdmi.c:726 vc4_hdmi_write_infoframe 0x3fc/0x470 [vc4] [ 1427.900353] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq_device algif_hash algif_skcipher af_alg bnep binfmt_misc brcmfmac_wcc hci_uart btbcm aes_ce_blk aes_ce_cipher ghash_ce gf128mul sha2_ce bluetooth sha256_arm64 sha1_ce sha1_generic ecdh_generic brcmfmac ecc brcmutil libaes sr_mod rpi_hevc_dec cfg80211 v4l2_mem2mem pisp_be videobuf2_dma_contig raspberrypi_hwmon cdrom videobuf2_memops sg videobuf2_v4l2 videodev rfkill ir_rc6_decoder gpio_ir_recv pwm_fan videobuf2_common mc rp1_mailbox joydev rp1_adc raspberrypi_gpiomem nvmem_rmem uio_pdrv_genirq uio i2c_dev fuse dm_mod ip_tables x_tables ipv6 spidev vc4 snd_soc_hdmi_codec v3d drm_display_helper cec gpu_sched drm_dma_helper i2c_brcmstb drm_shmem_helper drm_kms_helper spi_bcm2835 snd_soc_core snd_compress snd_pcm_dmaengine drm snd_pcm snd_timer gpio_keys i2c_designware_platform spi_dw_mmio snd spi_dw rp1_pio i2c_designware_core drm_panel_orientation_quirks backlight rp1_fw [ 1427.900421] CPU: 2 UID: 1000 PID: 14518 Comm: wireplumber Not tainted 6.12.34 rpt-rpi-2712 #1 Debian 1:6.12.34-1 rpt1~bookworm -- [ 1427.900498] write_device_infoframe 0xac/0x170 [drm_display_helper] [ 1427.900502] drm_atomic_helper_connector_hdmi_update_audio_infoframe 0x8c/0xb8 [drm_display_helper] [ 1427.900505] vc4_hdmi_audio_prepare 0x65c/0xf88 [vc4] [ 1427.900515] hdmi_codec_prepare 0xf8/0x160 [snd_soc_hdmi_codec] [ 1427.900518] snd_soc_pcm_dai_prepare 0x80/0x120 [snd_soc_core] [ 1427.900544] __soc_pcm_prepare 0x4c/0x120 [snd_soc_core] [ 1427.900562] soc_pcm_prepare 0x38/0x68 [snd_soc_core] [ 1427.900579] snd_pcm_do_prepare 0x38/0x60 [snd_pcm] [ 1427.900591] snd_pcm_action_single 0x50/0xb8 [snd_pcm] [ 1427.900599] snd_pcm_action_nonatomic 0xa8/0xb8 [snd_pcm] [ 1427.900607] snd_pcm_prepare 0x94/0xf8 [snd_pcm] [ 1427.900615] snd_pcm_common_ioctl 0xe34/0x1808 [snd_pcm] [ 1427.900623] snd_pcm_ioctl 0x38/0x58 [snd_pcm] [ 1427.900631] __arm64_sys_ioctl 0xb4/0x100 !!Packages installed !!-------------------- ii alsa-tools-gui 1.2.5-3 arm64 GUI based ALSA utilities for specific hardware ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files ii alsa-ucm-conf 1.2.8-1 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.8-1 rpt1 arm64 Utilities for configuring and using ALSA