!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Tue Oct 28 13:29:10 UTC 2025 !!Linux Distribution !!------------------ Ubuntu 25.10 \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 25.10" PRETTY_NAME="Ubuntu 25.10" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=questing LOGO=ubuntu-logo !!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: #3-Ubuntu SMP PREEMPT_DYNAMIC Mon Sep 22 19:28:02 UTC 2025 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.17.0-1003-raspi Library version: 1.2.14 Utilities version: 1.2.14 !!Loaded ALSA modules !!------------------- snd_bcm2835 (card 0) vc4 (card 1) vc4 (card 2) !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones 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 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_usb_audio: index=-2 snd_usb_caiaq: index=-2 snd_usb_ua101: index=-2 snd_usb_us122l: index=-2 snd_usb_usx2y: index=-2 snd_cmipci: mpu_port=0x330 fm_port=0x388 snd_pcsp: index=-2 snd_usb_audio: index=-2 snd_bcm2835: enable_headphones=0 snd_bcm2835: enable_headphones=1 snd_bcm2835: enable_hdmi=1 snd_bcm2835: enable_hdmi=0 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_hdmi : N enable_headphones : Y force_bulk : N num_channels : 8 !!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/vchiq-bus/drivers/bcm2835-audio 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 Oct 7 12:51 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Oct 7 12:51 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 7 Oct 7 12:51 /dev/snd/controlC2 crw-rw---- 1 root audio 116, 2 Oct 7 12:51 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Oct 7 12:51 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 6 Oct 7 12:51 /dev/snd/pcmC2D0p crw-rw---- 1 root audio 116, 1 Oct 7 12:51 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Oct 7 12:51 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 100 Oct 7 12:51 . drwxr-xr-x 3 root root 220 Oct 7 12:51 .. lrwxrwxrwx 1 root root 12 Oct 7 12:51 platform-fe00b840.mailbox -> ../controlC0 lrwxrwxrwx 1 root root 12 Oct 7 12:51 platform-fef00700.hdmi -> ../controlC1 lrwxrwxrwx 1 root root 12 Oct 7 12:51 platform-fef05700.hdmi -> ../controlC2 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 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 Headphones Card sysdefault:0 'Headphones'/'bcm2835 Headphones' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback 0 [96%] [0.00dB] [on] !!-------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.Headphones { control.1 { iface MIXER name 'PCM Playback Volume' value 0 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 0 } } control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } 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 !!------------------ ac97_bus aes_arm64 async_memcpy async_pq async_raid6_recov async_tx async_xor autofs4 backlight bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_mmc bcm2835_v4l2 binfmt_misc blake2b_generic bluetooth brcmfmac brcmfmac_cyw brcmutil btbcm btintel btqca btrfs btrtl btsdio cec cfg80211 dax dm_mod dm_multipath drm_client_lib drm_display_helper drm_dma_helper drm_exec drm_kms_helper drm_shmem_helper dwc2 efi_pstore efivarfs fuse gpu_sched hci_uart i2c_bcm2835 i2c_brcmstb ip_tables linear mc md_mod mmc_block nfnetlink nvmem_rmem phy_generic pwrseq_core qrtr raid0 raid1 raid10 raid456 raid6_pq raspberrypi_gpiomem raspberrypi_hwmon rfkill roles rpi_hevc_dec rpmb_core sch_fq_codel snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_core snd_soc_hdmi_codec snd_timer spi_bcm2835 spidev tls udc_core uio uio_pdrv_genirq v3d v4l2_mem2mem vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev x_tables xor xor_neon !!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=0 snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0 smsc95xx.macaddr=DC:A6:32:1F:C5:86 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 multipath=off dwc_otg.lpm_enable=0 console=tty1 root=LABEL=writable rootfstype=ext4 panic=10 rootwait fixrtc [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 12.173722] videodev: Linux video capture interface: v2.00 [ 12.498834] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 12.498856] snd_bcm2835: module verification failed: signature and/or required key missing - tainting kernel [ 12.501334] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned. -- [ 12.504354] WARNING: CPU: 2 PID: 481 at drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c:130 vc_vchi_cmd_create 0x1a8/0x1d0 [vc_sm_cma] [ 12.504386] Modules linked in: vc_sm_cma(CE ) v4l2_mem2mem gpu_sched snd_bcm2835(CE ) ac97_bus videobuf2_vmalloc snd_pcm_dmaengine drm_shmem_helper videobuf2_dma_contig rfkill videobuf2_memops snd_pcm drm_kms_helper videobuf2_v4l2 videobuf2_common raspberrypi_hwmon snd_timer backlight videodev raspberrypi_gpiomem snd mc uio_pdrv_genirq uio sch_fq_codel fuse dm_multipath dm_mod efi_pstore dax nfnetlink ip_tables x_tables autofs4 btrfs blake2b_generic efivarfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq raid1 raid0 linear md_mod spidev dwc2 roles udc_core bcm2835_mmc i2c_bcm2835 i2c_brcmstb spi_bcm2835 phy_generic nvmem_rmem mmc_block rpmb_core aes_arm64 [ 12.504553] CPU: 2 UID: 0 PID: 481 Comm: (udev-worker) Tainted: G C E 6.17.0-1003-raspi #3-Ubuntu PREEMPT(full) -- [ 12.506345] [vc_sm_connected_init]: installed successfully [ 12.514370] bcm2835-audio bcm2835-audio: card created with 8 channels [ 12.525278] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned. -- [ 13.458805] input: vc4-hdmi-0 as /devices/platform/soc/fef00700.hdmi/rc/rc0/input0 [ 13.462576] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc/fef00700.hdmi/sound/card1/input1 [ 13.465346] vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 13.467915] input: vc4-hdmi-1 as /devices/platform/soc/fef05700.hdmi/rc/rc1/input2 [ 13.474249] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc/fef05700.hdmi/sound/card2/input3 [ 13.474574] 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 1.2.12-1ubuntu2 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.14-1ubuntu1 arm64 Utilities for configuring and using ALSA