!!################################ !!ALSA Information Script v 0.5.1 !!################################ !!Script ran on: Wed Apr 5 20:32:14 UTC 2023 !!Linux Distribution !!------------------ Ubuntu 22.04.2 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 22.04.2 LTS" PRETTY_NAME="Ubuntu 22.04.2 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=jammy !!DMI Information !!--------------- Manufacturer: QEMU Product Name: Standard PC (i440FX PIIX, 1996) Product Version: pc-i440fx-7.2 Firmware Version: rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- /sys/bus/acpi/devices/LNXCPU:00/status 15 /sys/bus/acpi/devices/PNP0103:00/status 15 /sys/bus/acpi/devices/PNP0303:00/status 15 /sys/bus/acpi/devices/PNP0A06:01/status 11 /sys/bus/acpi/devices/PNP0A06:02/status 11 /sys/bus/acpi/devices/PNP0C0F:00/status 11 /sys/bus/acpi/devices/PNP0C0F:01/status 11 /sys/bus/acpi/devices/PNP0C0F:02/status 11 /sys/bus/acpi/devices/PNP0C0F:03/status 11 /sys/bus/acpi/devices/PNP0C0F:04/status 11 /sys/bus/acpi/devices/PNP0F13:00/status 15 /sys/bus/acpi/devices/QEMU0002:00/status 11 /sys/bus/acpi/devices/QEMUVGID:00/status 15 !!Kernel Information !!------------------ Kernel release: 5.15.0-69-generic Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.15.0-69-generic Library version: 1.2.6.1 Utilities version: 1.2.6 !!Loaded ALSA modules !!------------------- snd_usb_audio (card 1) !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 1 [USB ]: USB-Audio - Scarlett 18i20 USB Focusrite Scarlett 18i20 USB at usb-0000:02:1b.0-1, high speed !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_usb_audio: 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),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) device_setup : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) ignore_ctl_error : N implicit_fb : N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N index : -2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 lowlatency : Y pid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 quirk_alias : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) quirk_flags : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 skip_validation : N use_vmalloc : Y vid : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card1 Driver: /sys/bus/usb/drivers/snd-usb-audio Tree: !!USB Descriptors !!--------------- --startcollapse-- Bus 002 Device 002: ID 1235:8215 Focusrite-Novation Scarlett 18i20 3rd Gen Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 idVendor 0x1235 Focusrite-Novation idProduct 0x8215 Scarlett 18i20 3rd Gen bcdDevice 6.6c iManufacturer 1 Focusrite iProduct 3 Scarlett 18i20 USB iSerial 2 P9QTN4C960360F bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0283 bNumInterfaces 6 bConfigurationValue 1 iConfiguration 9 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Association: bLength 8 bDescriptorType 11 bFirstInterface 0 bInterfaceCount 3 bFunctionClass 1 Audio bFunctionSubClass 0 bFunctionProtocol 32 iFunction 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 32 iInterface 3 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 2.00 bCategory 8 wTotalLength 0x00bf bmControls 0x00 AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 41 bmAttributes 3 Internal programmable clock bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 9 AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 42 bmAttributes 0 External clock bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 11 AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 43 bmAttributes 0 External clock bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 12 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 11 (CLOCK_SELECTOR) bClockID 40 bNrInPins 3 baCSourceID(0) 41 baCSourceID(1) 42 baCSourceID(2) 43 bmControls 0x03 Clock Selector Control (read/write) iClockSelector 8 AudioControl Interface Descriptor: bLength 17 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bCSourceID 40 bNrChannels 20 bmChannelConfig 0x00000000 iChannelNames 19 bmControls 0x0000 iTerminal 6 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 20 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 2 bCSourceID 40 bmControls 0x0000 iTerminal 0 AudioControl Interface Descriptor: bLength 17 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0201 Microphone bAssocTerminal 0 bCSourceID 40 bNrChannels 20 bmChannelConfig 0x00000000 iChannelNames 39 bmControls 0x0000 iTerminal 0 AudioControl Interface Descriptor: bLength 90 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 11 bSourceID 1 bmaControls(0) 0x00000000 bmaControls(1) 0x00000000 bmaControls(2) 0x00000000 bmaControls(3) 0x00000000 bmaControls(4) 0x00000000 bmaControls(5) 0x00000000 bmaControls(6) 0x00000000 bmaControls(7) 0x00000000 bmaControls(8) 0x00000000 bmaControls(9) 0x00000000 bmaControls(10) 0x00000000 bmaControls(11) 0x00000000 bmaControls(12) 0x00000000 bmaControls(13) 0x00000000 bmaControls(14) 0x00000000 bmaControls(15) 0x00000000 bmaControls(16) 0x00000000 bmaControls(17) 0x00000000 bmaControls(18) 0x00000000 bmaControls(19) 0x00000000 bmaControls(20) 0x00000000 iFeature 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 22 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 11 bCSourceID 40 bmControls 0x0000 iTerminal 7 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 20 bmChannelConfig 0x00000000 iChannelNames 19 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 80 bb 00 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0230 1x 560 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 18 bmChannelConfig 0x00000000 iChannelNames 19 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 00 77 01 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x03a8 1x 936 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 10 bmChannelConfig 0x00000000 iChannelNames 19 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 00 ee 02 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x03e8 1x 1000 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 22 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 20 bmChannelConfig 0x00000000 iChannelNames 39 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 80 bb 00 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0230 1x 560 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 22 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 18 bmChannelConfig 0x00000000 iChannelNames 39 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 00 77 01 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x03a8 1x 936 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 22 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 10 bmChannelConfig 0x00000000 iChannelNames 39 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 00 ee 02 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x03e8 1x 1000 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 1 bInterfaceProtocol 32 iInterface 15 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 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 5 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 14 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 13 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 1 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 bRefresh 0 bSynchAddress 0 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 3 --endcollapse-- !!USB Stream information !!---------------------- --startcollapse-- Focusrite Scarlett 18i20 USB at usb-0000:02:1b.0-1, high speed : USB Audio Playback: Status: Stop Interface 1 Altset 1 Format: S32_LE Channels: 20 Endpoint: 0x01 (1 OUT) (ASYNC) Rates: 44100, 48000 Data packet interval: 125 us Bits: 24 Sync Endpoint: 0x81 (1 IN) Sync EP Interface: 2 Sync EP Altset: 1 Implicit Feedback Mode: Yes Interface 1 Altset 2 Format: S32_LE Channels: 18 Endpoint: 0x01 (1 OUT) (ASYNC) Rates: 88200, 96000 Data packet interval: 125 us Bits: 24 Sync Endpoint: 0x81 (1 IN) Sync EP Interface: 2 Sync EP Altset: 2 Implicit Feedback Mode: Yes Interface 1 Altset 3 Format: S32_LE Channels: 10 Endpoint: 0x01 (1 OUT) (ASYNC) Rates: 176400, 192000 Data packet interval: 125 us Bits: 24 Channel map: FL FR FC LFE RL RR FLC FRC RC SL Sync Endpoint: 0x81 (1 IN) Sync EP Interface: 2 Sync EP Altset: 3 Implicit Feedback Mode: Yes Capture: Status: Stop Interface 2 Altset 1 Format: S32_LE Channels: 20 Endpoint: 0x81 (1 IN) (ASYNC) Rates: 44100, 48000 Data packet interval: 125 us Bits: 24 Interface 2 Altset 2 Format: S32_LE Channels: 18 Endpoint: 0x81 (1 IN) (ASYNC) Rates: 88200, 96000 Data packet interval: 125 us Bits: 24 Interface 2 Altset 3 Format: S32_LE Channels: 10 Endpoint: 0x81 (1 IN) (ASYNC) Rates: 176400, 192000 Data packet interval: 125 us Bits: 24 Channel map: FL FR FC LFE RL RR FLC FRC RC SL --endcollapse-- !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x12358215, ctrlif=4, ctlerr=0 Card: Focusrite Scarlett 18i20 USB at usb-0000:02:1b.0-1, high speed USB Mixer: usb_id=0x12358215, ctrlif=0, ctlerr=0 Card: Focusrite Scarlett 18i20 USB at usb-0000:02:1b.0-1, high speed Unit: 40 Control: name="Clock Source Clock Source", index=0 Info: id=40, control=1, cmask=0x0, channels=1, type="U8" Volume: min=1, max=3, dBmin=0, dBmax=0 Unit: 41 Control: name="Internal Validity", index=0 Info: id=41, control=2, cmask=0x0, channels=1, type="BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 42 Control: name="S/PDIF Validity", index=0 Info: id=42, control=2, cmask=0x0, channels=1, type="BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 43 Control: name="ADAT Validity", index=0 Info: id=43, control=2, cmask=0x0, channels=1, type="BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 5 Apr 5 20:24 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 4 Apr 5 20:24 /dev/snd/midiC1D0 crw-rw---- 1 root audio 116, 3 Apr 5 20:24 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 2 Apr 5 20:24 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Apr 5 20:24 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Apr 5 20:24 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Apr 5 20:24 . drwxr-xr-x 4 root root 200 Apr 5 20:24 .. lrwxrwxrwx 1 root root 12 Apr 5 20:24 usb-Focusrite_Scarlett_18i20_USB_P9QTN4C960360F-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Apr 5 20:24 . drwxr-xr-x 4 root root 200 Apr 5 20:24 .. lrwxrwxrwx 1 root root 12 Apr 5 20:24 pci-0000:02:1b.0-usb-0:1:1.0 -> ../controlC1 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 1: USB [Scarlett 18i20 USB], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 1: USB [Scarlett 18i20 USB], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card USB Card sysdefault:1 'USB'/'Focusrite Scarlett 18i20 USB at usb-0000:02:1b.0-1, high speed' Mixer name : 'USB Mixer' Components : 'USB1235:8215' Controls : 4 Simple ctrls : 1 Simple mixer control 'Clock Source Clock Source',0 Capabilities: enum Items: 'Internal' 'S/PDIF' 'ADAT' Item0: 'Internal' !!Alsactl output !!-------------- --startcollapse-- state.USB { control.1 { iface CARD name 'Internal Validity' value true comment { access read type BOOLEAN count 1 } } control.2 { iface CARD name 'S/PDIF Validity' value true comment { access read type BOOLEAN count 1 } } control.3 { iface CARD name 'ADAT Validity' value true comment { access read type BOOLEAN count 1 } } control.4 { iface MIXER name 'Clock Source Clock Source' value Internal comment { access 'read write' type ENUMERATED count 1 item.0 Internal item.1 S/PDIF item.2 ADAT } } } --endcollapse-- !!All Loaded Modules !!------------------ async_memcpy async_pq async_raid6_recov async_tx async_xor autofs4 binfmt_misc blake2b_generic bochs btrfs cec dm_multipath drm drm_kms_helper drm_ttm_helper drm_vram_helper efi_pstore failover fb_sys_fops floppy hid hid_generic i2c_piix4 input_leds ip_tables joydev libcrc32c linear mac_hid mc msr multipath net_failover pata_acpi psmouse pstore_blk pstore_zone qemu_fw_cfg raid0 raid1 raid10 raid456 raid6_pq ramoops rc_core reed_solomon sch_fq_codel scsi_dh_alua scsi_dh_emc scsi_dh_rdac serio_raw snd snd_hwdep snd_pcm snd_rawmidi snd_seq_device snd_timer snd_usb_audio snd_usbmidi_lib soundcore syscopyarea sysfillrect sysimgblt ttm usbhid virtio_net virtio_scsi x_tables xhci_pci xhci_pci_renesas xor zstd_compress !!ALSA/HDA dmesg !!-------------- !!Packages installed !!-------------------- ii alsa-utils 1.2.6-1ubuntu1 amd64 Utilities for configuring and using ALSA