!!################################
!!ALSA Information Script v 0.5.3
!!################################

!!Script ran on: Fri Feb  6 21:32:49 UTC 2026


!!Linux Distribution
!!------------------

Debian GNU/Linux 13 \n \l PRETTY_NAME="Debian GNU/Linux 13 (trixie)" NAME="Debian GNU/Linux" DEBIAN_VERSION_FULL=13.3 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:      ChromiumOS
Product Name:      crosvm
Product Version:   
Firmware Version:  0
System SKU:        
Board Vendor:      
Board Name:        


!!ACPI Device Status Information
!!---------------



!!ACPI SoundWire Device Status Information
!!---------------



!!Kernel Information
!!------------------

Kernel release:    #1 SMP PREEMPT_DYNAMIC Thu, 27 Nov 2025 21:00:42 -0800
Operating System:  GNU/Linux
Architecture:      x86_64
Processor:         unknown
SMP Enabled:       Yes


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

Driver version:     k6.6.99-09000-gd3ae1caecf39
Library version:    
Utilities version:  1.2.14


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



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

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

No sound servers found.


!!Soundcards recognised by ALSA
!!-----------------------------

 0 [SoundCard      ]: virtio-snd - VirtIO SoundCard
                      VirtIO SoundCard at pci/0000:00:08.0/virtio7


!!PCI Soundcards installed in the system
!!--------------------------------------

00:08.0 Multimedia audio controller [0401]: Red Hat, Inc. Virtio 1.0 sound [1af4:1059] (rev 01)
	Subsystem: Red Hat, Inc. Virtio 1.0 sound [1af4:1059]


!!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
!!---------------------------


!!Sysfs card info
!!---------------

!!Card: /sys/class/sound/card0
Driver: /sys/bus/virtio/drivers/virtio_snd
Tree:
	/sys/class/sound/card0
	|-- controlC0
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- power
	|   |-- subsystem -> ../../../../../../../class/sound
	|   `-- uevent
	|-- device -> ../../../virtio7
	|-- id
	|-- number
	|-- pcmC0D0c
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../../class/sound
	|   `-- uevent
	|-- pcmC0D0p
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../../class/sound
	|   `-- uevent
	|-- power
	|   |-- async
	|   |-- autosuspend_delay_ms
	|   |-- control
	|   |-- runtime_active_kids
	|   |-- runtime_active_time
	|   |-- runtime_enabled
	|   |-- runtime_status
	|   |-- runtime_suspended_time
	|   `-- runtime_usage
	|-- subsystem -> ../../../../../../class/sound
	`-- uevent


!!ALSA Device nodes
!!-----------------

crw-rw---- 1 root audio 116,  0 Feb  6 00:40 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 24 Feb  6 02:14 /dev/snd/pcmC0D0c
crw-rw---- 1 root audio 116, 16 Feb  6 02:14 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116,  1 Feb  6 00:40 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Feb  6 00:40 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root  60 Feb  6 00:40 .
drwxr-xr-x 3 root root 160 Feb  6 00:40 ..
lrwxrwxrwx 1 root root  12 Feb  6 00:40 pci-0000:00:08.0 -> ../controlC0


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

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: SoundCard [VirtIO SoundCard], device 0: virtio-snd [VirtIO PCM 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****
card 0: SoundCard [VirtIO SoundCard], device 0: virtio-snd [VirtIO PCM 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

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

!!-------Mixer controls for card SoundCard

Card sysdefault:0 'SoundCard'/'VirtIO SoundCard at pci/0000:00:08.0/virtio7'
  Mixer name	: ''
  Components	: ''
  Controls      : 2
  Simple ctrls  : 0


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

--startcollapse--
state.SoundCard {
	control.1 {
		iface PCM
		name 'Playback Channel Map'
		value.0 0
		value.1 0
		value.2 0
		value.3 0
		value.4 0
		value.5 0
		comment {
			access read
			type INTEGER
			count 6
			range '0 - 36'
		}
	}
	control.2 {
		iface PCM
		name 'Capture Channel Map'
		value.0 0
		value.1 0
		comment {
			access read
			type INTEGER
			count 2
			range '0 - 36'
		}
	}
}
--endcollapse--


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



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

[    1.504511] usbhid: USB HID core driver
[    1.505748] usbcore: registered new interface driver snd-usb-audio
[    1.552580] GACT probability NOT on
--
[    1.653061] PM:   Magic number: 14:192:670
[    1.655102] ALSA device list:
[    1.655250]   #0: VirtIO SoundCard at pci/0000:00:08.0/virtio7


!!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                             amd64        Utilities for configuring and using ALSA