!!################################
!!ALSA Information Script v 0.5.1
!!################################

!!Script ran on: Wed Mar 25 19:55:31 UTC 2026


!!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:    6.12.62 rpt-rpi-v8
Operating System:  GNU/Linux
Architecture:      aarch64
Processor:         unknown
SMP Enabled:       Yes


!!ALSA Version
!!------------

Driver version:     k6.12.62 rpt-rpi-v8
Library version:    1.2.8
Utilities version:  1.2.8


!!Loaded ALSA modules
!!-------------------

vc4 (card 0)
vc4 (card 1)
snd_bcm2835 (card 2)


!!Sound Servers on this system
!!----------------------------

PipeWire:
      Installed - Yes (/usr/bin/pipewire)
      Running - Yes

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes


!!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 [Headphones     ]: bcm2835_headpho - bcm2835 Headphones
                      bcm2835 Headphones


!!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_headphones=1
snd_bcm2835: enable_hdmi=1
snd_bcm2835: enable_hdmi=0


!!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 : 

!!Module: snd_bcm2835
	enable_hdmi : N
	enable_headphones : Y
	force_bulk : N
	num_channels : 8


!!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/vchiq-bus/drivers/bcm2835-audio
Tree:
	/sys/class/sound/card2
	|-- controlC2
	|   |-- dev
	|   |-- device -> ../../card2
	|   |-- power
	|   |-- subsystem -> ../../../../../../../../class/sound
	|   `-- uevent
	|-- device -> ../../../bcm2835-audio
	|-- id
	|-- number
	|-- 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 Mar 17 23:19 /dev/snd/controlC0
crw-rw----  1 root audio 116,  5 Mar 17 23:19 /dev/snd/controlC1
crw-rw----  1 root audio 116,  7 Mar 17 23:19 /dev/snd/controlC2
crw-rw----  1 root audio 116,  2 Mar 17 23:19 /dev/snd/pcmC0D0p
crw-rw----  1 root audio 116,  4 Mar 17 23:19 /dev/snd/pcmC1D0p
crw-rw----  1 root audio 116,  6 Mar 17 23:19 /dev/snd/pcmC2D0p
crw-rw----  1 root audio 116,  1 Mar 21 22:40 /dev/snd/seq
crw-rw----  1 root audio 116, 33 Mar 17 23:19 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 100 Mar 17 23:19 .
drwxr-xr-x 3 root root 220 Mar 17 23:19 ..
lrwxrwxrwx 1 root root  12 Mar 17 23:19 platform-fe00b840.mailbox -> ../controlC2
lrwxrwxrwx 1 root root  12 Mar 17 23:19 platform-fef00700.hdmi -> ../controlC0
lrwxrwxrwx 1 root root  12 Mar 17 23:19 platform-fef05700.hdmi -> ../controlC1


!!ALSA configuration files
!!------------------------

!!System wide config file (/etc/asound.conf)

defaults.pcm.card 0
defaults.ctl.card 0


!!Aplay/Arecord output
!!--------------------

APLAY

aplay: device_list:274: no soundcards found...

ARECORD

arecord: device_list:274: no soundcards found...

!!Amixer output
!!-------------

!!-------Mixer controls for card vc4hdmi0

Invalid card number 'vc4hdmi0'.
Invalid card number 'vc4hdmi0'.

!!-------Mixer controls for card vc4hdmi1

Invalid card number 'vc4hdmi1'.
Invalid card number 'vc4hdmi1'.

!!-------Mixer controls for card Headphones

Invalid card number 'Headphones'.
Invalid card number 'Headphones'.


!!Alsactl output
!!--------------

--startcollapse--
--endcollapse--


!!All Loaded Modules
!!------------------

aes_arm64
aes_generic
af_alg
algif_hash
algif_skcipher
backlight
bcm2835_codec
bcm2835_isp
bcm2835_mmal_vchiq
bcm2835_v4l2
binfmt_misc
bluetooth
bnep
brcmfmac
brcmfmac_wcc
brcmutil
btbcm
cec
cfg80211
cmac
dm_mod
drm
drm_display_helper
drm_dma_helper
drm_kms_helper
drm_panel_orientation_quirks
drm_shmem_helper
dvb_core
dvb_usb_rtl28xxu
dvb_usb_v2
ecc
ecdh_generic
fuse
gpu_sched
hci_uart
i2c_brcmstb
i2c_dev
i2c_mux
ip_tables
ipv6
ledtrig_pattern
libaes
mc
nvmem_rmem
r820t
raspberrypi_gpiomem
raspberrypi_hwmon
regmap_i2c
rfcomm
rfkill
rpi_hevc_dec
rtl2832
rtl2832_sdr
snd
snd_bcm2835
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
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


!!ALSA/HDA dmesg
!!--------------

[    0.000000] alternatives: applying boot alternatives
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 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  numa=fake=2 system_heap.max_order=0 smsc95xx.macaddr=DC:A6:32:82:36:5A vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyS0,115200 console=tty1 root=PARTUUID=6f1f365c-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles cfg80211.ieee80211_regdom=CA
[    0.000000] cgroup: Disabling memory control group subsystem
--
[    1.751167] input: vc4-hdmi-0 as /devices/platform/soc/fef00700.hdmi/rc/rc0/input0
[    1.753455] input: vc4-hdmi-0 HDMI Jack as /devices/platform/soc/fef00700.hdmi/sound/card0/input1
[    1.754123] vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_ops [vc4])
--
[    1.757246] input: vc4-hdmi-1 as /devices/platform/soc/fef05700.hdmi/rc/rc1/input2
[    1.759171] input: vc4-hdmi-1 HDMI Jack as /devices/platform/soc/fef05700.hdmi/sound/card1/input3
[    1.759408] vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_ops [vc4])
--
[    5.796041] mc: Linux media interface: v0.10
[    5.797024] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    5.805550] bcm2835-audio bcm2835-audio: card created with 8 channels
[    5.866404] videodev: Linux video capture interface: v2.00


!!Packages installed
!!--------------------

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