!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Tue Apr 28 22:48:04 UTC 2026 !!Linux Distribution !!------------------ Ubuntu 24.04.4 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 24.04.4 LTS" PRETTY_NAME="Ubuntu 24.04.4 LTS" 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=noble LOGO=ubuntu-logo !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- /sys/bus/acpi/devices/ACPI0007:00/status 15 /sys/bus/acpi/devices/ACPI0007:01/status 15 /sys/bus/acpi/devices/ACPI0007:02/status 15 /sys/bus/acpi/devices/ACPI0007:03/status 15 /sys/bus/acpi/devices/ACPI0007:04/status 15 /sys/bus/acpi/devices/ACPI0007:05/status 15 /sys/bus/acpi/devices/ACPI0007:06/status 15 /sys/bus/acpi/devices/ACPI0007:07/status 15 /sys/bus/acpi/devices/ACPI0007:08/status 15 /sys/bus/acpi/devices/ACPI0007:09/status 15 /sys/bus/acpi/devices/ACPI0007:0a/status 15 /sys/bus/acpi/devices/ACPI0007:0b/status 15 /sys/bus/acpi/devices/ACPI0007:0c/status 15 /sys/bus/acpi/devices/ACPI0007:0d/status 15 /sys/bus/acpi/devices/ACPI0007:0e/status 15 /sys/bus/acpi/devices/ACPI0007:0f/status 15 /sys/bus/acpi/devices/ACPI0007:10/status 15 /sys/bus/acpi/devices/ACPI0007:11/status 15 /sys/bus/acpi/devices/ACPI0007:12/status 15 /sys/bus/acpi/devices/ACPI0007:13/status 15 /sys/bus/acpi/devices/ACPI0007:14/status 15 /sys/bus/acpi/devices/ACPI0007:15/status 15 /sys/bus/acpi/devices/ACPI0007:16/status 15 /sys/bus/acpi/devices/ACPI0007:17/status 15 /sys/bus/acpi/devices/ACPI0007:18/status 15 /sys/bus/acpi/devices/ACPI0007:19/status 15 /sys/bus/acpi/devices/ACPI0007:1a/status 15 /sys/bus/acpi/devices/ACPI0007:1b/status 15 /sys/bus/acpi/devices/ACPI0007:1c/status 15 /sys/bus/acpi/devices/ACPI0007:1d/status 15 /sys/bus/acpi/devices/ACPI0007:1e/status 15 /sys/bus/acpi/devices/ACPI0007:1f/status 15 /sys/bus/acpi/devices/MSFT1000:00/status 15 !!Kernel Information !!------------------ Kernel release: #1 SMP PREEMPT_DYNAMIC Thu Jun 5 18:30:46 UTC 2025 Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.6.87.2-microsoft-standard-WSL2 Library version: 1.2.11 Utilities version: 1.2.9 !!Loaded ALSA modules !!------------------- snd_usb_audio (card 0) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes Jack: Installed - Yes (/usr/bin/jackd) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [A32 ]: USB-Audio - Arturia KeyStep 32 Arturia Arturia KeyStep 32 at usb-vhci_hcd.0-1, full speed !!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: snd_usb_audio autoclock : Y delayed_register : (null),(null),(null),(null) device_setup : 0,0,0,0 enable : Y,Y,Y,Y id : (null),(null),(null),(null) ignore_ctl_error : N implicit_fb : N,N,N,N index : -1,-1,-1,-1 lowlatency : Y pid : -1,-1,-1,-1 quirk_alias : (null),(null),(null),(null) quirk_flags : 0,0,0,0 skip_validation : N use_vmalloc : Y vid : -1,-1,-1,-1 !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/usb/drivers/snd-usb-audio Tree: !!USB Descriptors !!--------------- --startcollapse-- Bus 001 Device 002: ID 1c75:0288 Arturia KeyStep Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 [unknown] bDeviceSubClass 0 [unknown] bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x1c75 Arturia idProduct 0x0288 KeyStep bcdDevice 2.00 iManufacturer 1 Arturia iProduct 2 Arturia KeyStep 32 iSerial 3 00000000001A bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0065 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 0x0009 bInCollection 1 baInterfaceNr(0) 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 3 MIDI Streaming bInterfaceProtocol 0 iInterface 0 MIDIStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 0x0041 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 1 Embedded bJackID 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 2 External bJackID 2 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 1 Embedded bJackID 3 bNrInputPins 1 baSourceID( 0) 2 BaSourcePin( 0) 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 2 External bJackID 4 bNrInputPins 1 baSourceID( 0) 1 BaSourcePin( 0) 1 iJack 0 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (Invalid) bNumEmbMIDIJack 1 baAssocJackID( 0) 1 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (Invalid) bNumEmbMIDIJack 1 baAssocJackID( 0) 3 --endcollapse-- !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x1c750288, ctrlif=0, ctlerr=0 Card: Arturia Arturia KeyStep 32 at usb-vhci_hcd.0-1, full speed --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 3 Apr 28 14:54 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 2 Apr 28 14:54 /dev/snd/midiC0D0 crw-rw---- 1 root audio 116, 33 Apr 28 14:54 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Apr 28 14:54 . drwxr-xr-x 4 root root 140 Apr 28 14:54 .. lrwxrwxrwx 1 root root 12 Apr 28 14:54 usb-Arturia_Arturia_KeyStep_32_00000000001A-00 -> ../controlC0 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Apr 28 14:54 . drwxr-xr-x 4 root root 140 Apr 28 14:54 .. lrwxrwxrwx 1 root root 12 Apr 28 14:54 platform-vhci_hcd.0-usb-0:1:1.0 -> ../controlC0 lrwxrwxrwx 1 root root 12 Apr 28 14:54 platform-vhci_hcd.0-usbv2-0:1:1.0 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY aplay: device_list:277: no soundcards found... ARECORD arecord: device_list:277: no soundcards found... !!Amixer output !!------------- !!-------Mixer controls for card A32 Invalid card number 'A32'. Invalid card number 'A32'. !!Alsactl output !!-------------- --startcollapse-- --endcollapse-- !!All Loaded Modules !!------------------ autofs4 br_netfilter bridge configfs crc32c_intel intel_rapl_common intel_rapl_msr ip_tables irqbypass kvm kvm_intel llc mc msr sch_fq_codel snd snd_hwdep snd_pcm snd_rawmidi snd_timer snd_usb_audio snd_usbmidi_lib soundcore stp tls tun usb_common usbcore usbip_core vhci_hcd !!ALSA/HDA dmesg !!-------------- [70233.430851] mc: Linux media interface: v0.10 [70233.459204] usbcore: registered new interface driver snd-usb-audio [70296.270288] brainchild: brainchild: potentially unexpected fatal signal 6. !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files ii alsa-ucm-conf 1.2.10-1ubuntu5.10 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.9-1ubuntu5 amd64 Utilities for configuring and using ALSA