!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Tue Dec 23 01:52:41 UTC 2025 !!Linux Distribution !!------------------ ID_LIKE="ubuntu debian" UBUNTU_CODENAME=noble !!DMI Information !!--------------- Manufacturer: Acer Product Name: TMP40-53 Product Version: V1.59 Firmware Version: V1.59 System SKU: 0000000000000000 Board Vendor: TGL Board Name: Timpani_TL !!ACPI Device Status Information !!--------------- /sys/bus/acpi/devices/10251229:00/status 15 /sys/bus/acpi/devices/10251490:00/status 15 /sys/bus/acpi/devices/ACPI000C:00/status 15 /sys/bus/acpi/devices/INT33A1:00/status 15 /sys/bus/acpi/devices/INT340E:00/status 15 /sys/bus/acpi/devices/INT34C5:00/status 15 /sys/bus/acpi/devices/INT3F0D:00/status 15 /sys/bus/acpi/devices/INTC1040:00/status 15 /sys/bus/acpi/devices/INTC1043:00/status 15 /sys/bus/acpi/devices/INTC1043:01/status 15 /sys/bus/acpi/devices/INTC1043:02/status 15 /sys/bus/acpi/devices/LNXPOWER:00/status 1 /sys/bus/acpi/devices/LNXPOWER:01/status 1 /sys/bus/acpi/devices/LNXPOWER:02/status 1 /sys/bus/acpi/devices/LNXPOWER:03/status 1 /sys/bus/acpi/devices/LNXPOWER:04/status 1 /sys/bus/acpi/devices/LNXPOWER:05/status 1 /sys/bus/acpi/devices/LNXPOWER:06/status 1 /sys/bus/acpi/devices/LNXPOWER:07/status 1 /sys/bus/acpi/devices/LNXPOWER:08/status 1 /sys/bus/acpi/devices/LNXPOWER:09/status 1 /sys/bus/acpi/devices/LNXPOWER:0a/status 1 /sys/bus/acpi/devices/LNXPOWER:0c/status 1 /sys/bus/acpi/devices/NTC0702:00/status 15 /sys/bus/acpi/devices/PNP0103:00/status 15 /sys/bus/acpi/devices/PNP0B00:00/status 15 /sys/bus/acpi/devices/PNP0C02:02/status 11 /sys/bus/acpi/devices/PNP0C02:04/status 11 /sys/bus/acpi/devices/PNP0C0A:00/status 31 /sys/bus/acpi/devices/PRP00001:00/status 11 /sys/bus/acpi/devices/PRP00001:01/status 11 /sys/bus/acpi/devices/SYNA7DAB:00/status 15 /sys/bus/acpi/devices/USBC000:00/status 15 /sys/bus/acpi/devices/device:00/status 15 /sys/bus/acpi/devices/device:18/status 15 /sys/bus/acpi/devices/device:92/status 15 /sys/bus/acpi/devices/device:93/status 15 /sys/bus/acpi/devices/device:94/status 15 /sys/bus/acpi/devices/device:96/status 15 /sys/bus/acpi/devices/device:97/status 15 /sys/bus/acpi/devices/device:98/status 15 /sys/bus/acpi/devices/device:c8/status 15 /sys/bus/acpi/devices/device:cf/status 15 /sys/bus/acpi/devices/device:d1/status 15 !!Kernel Information !!------------------ Kernel release: #202412060638~1748542637~24.04~3446b29 SMP PREEMPT_DYNAMIC Thu M Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.12.10-76061203-generic Library version: Utilities version: 1.2.9 !!Loaded ALSA modules !!------------------- snd_usb_audio (card 0) snd_usb_audio (card 1) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [Device ]: USB-Audio - USB PnP Sound Device C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:14.0-9.4, full spe 1 [WebCamera ]: USB-Audio - WebCamera WebCamera WebCamera at usb-0000:00:14.0-9.3, high speed !!PCI Soundcards installed in the system !!-------------------------------------- 0000:00:1f.3 Multimedia audio controller [0401]: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller [8086:a0c8] (rev 20) Subsystem: Acer Incorporated [ALI] Tiger Lake-LP Smart Sound Technology Audio Controller [1025:1490] !!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_hda_intel: index=0 model=alc255 snd_hda_intel: enable=1,1 snd_intel_dspcfg: dsp_driver=1 !!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 midi2_enable : Y midi2_ump_probe : 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 !!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 midi2_enable : Y midi2_ump_probe : 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/card0 Driver: /sys/bus/usb/drivers/snd-usb-audio Tree: /sys/class/sound/card0 |-- controlC0 | |-- dev | |-- device -> ../../card0 | |-- power | |-- subsystem -> ../../../../../../../../../../class/sound | `-- uevent |-- device -> ../../../3-9.4:1.0 |-- id |-- number |-- pcmC0D0c | |-- 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 !!Card: /sys/class/sound/card1 Driver: /sys/bus/usb/drivers/snd-usb-audio Tree: /sys/class/sound/card1 |-- controlC1 | |-- dev | |-- device -> ../../card1 | |-- power | |-- subsystem -> ../../../../../../../../../../class/sound | `-- uevent |-- device -> ../../../3-9.3:1.2 |-- id |-- number |-- pcmC1D0c | |-- dev | |-- device -> ../../card1 | |-- 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 !!USB Descriptors !!--------------- --startcollapse-- Bus 003 Device 009: ID 08bb:2902 Texas Instruments PCM2902 Audio Codec Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 [unknown] bDeviceSubClass 0 [unknown] bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x08bb Texas Instruments idProduct 0x2902 PCM2902 Audio Codec bcdDevice 1.00 iManufacturer 1 C-Media Electronics Inc. iProduct 2 USB PnP Sound Device iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0099 bNumInterfaces 3 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 0x0037 bInCollection 1 baInterfaceNr(0) 1 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0201 Microphone bAssocTerminal 0 bNrChannels 1 wChannelConfig 0x0001 Left Front (L) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 7 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 8 iTerminal 0 AudioControl Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 5 (SELECTOR_UNIT) bUnitID 8 bNrInPins 1 baSourceID(0) 10 iSelector 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 10 bSourceID 2 bControlSize 1 bmaControls(0) 0x43 Mute Control Volume Control Automatic Gain Control bmaControls(1) 0x00 iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 13 bSourceID 2 bControlSize 1 bmaControls(0) 0x03 Mute Control Volume Control bmaControls(1) 0x00 iFeature 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 7 bDelay 1 frames wFormatTag 0x0001 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 1 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 48000 tSamFreq[ 1] 44100 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0064 1x 100 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioStreaming Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0x0000 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 [unknown] bInterfaceProtocol 0 iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.00 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 60 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x87 EP 7 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 2 Bus 003 Device 008: ID 5843:e603 WebCamera WebCamera Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 [unknown] bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 idVendor 0x5843 WebCamera idProduct 0xe603 WebCamera bcdDevice 3.29 iManufacturer 1 WebCamera iProduct 2 WebCamera iSerial 3 20250603 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0261 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 256mA Interface Association: bLength 8 bDescriptorType 11 bFirstInterface 0 bInterfaceCount 2 bFunctionClass 14 Video bFunctionSubClass 3 Video Interface Collection bFunctionProtocol 0 iFunction 2 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 1 Video Control bInterfaceProtocol 0 iInterface 2 VideoControl Interface Descriptor: bLength 13 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdUVC 1.00 wTotalLength 0x0050 dwClockFrequency 288.000000MHz bInCollection 1 baInterfaceNr( 0) 1 VideoControl Interface Descriptor: bLength 18 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0201 Camera Sensor bAssocTerminal 0 iTerminal 0 wObjectiveFocalLengthMin 0 wObjectiveFocalLengthMax 0 wOcularFocalLength 0 bControlSize 3 bmControls 0x0002002a Auto-Exposure Mode Exposure Time (Absolute) Focus (Absolute) Focus, Auto VideoControl Interface Descriptor: bLength 11 bDescriptorType 36 bDescriptorSubtype 5 (PROCESSING_UNIT) Warning: Descriptor too short bUnitID 7 bSourceID 1 wMaxMultiplier 0 bControlSize 2 bmControls 0x0000177b Brightness Contrast Saturation Sharpness Gamma White Balance Temperature Backlight Compensation Gain Power Line Frequency White Balance Temperature, Auto iProcessing 0 bmVideoStandards 0x1d None PAL - 625/50 SECAM - 625/50 NTSC - 625/50 VideoControl Interface Descriptor: bLength 29 bDescriptorType 36 bDescriptorSubtype 6 (EXTENSION_UNIT) bUnitID 8 guidExtensionCode {dd880f8a-1cba-4954-8a25-f7875967f0f7} bNumControls 0 bNrInPins 1 baSourceID( 0) 7 bControlSize 4 bmControls( 0) 0x7f bmControls( 1) 0x00 bmControls( 2) 0x00 bmControls( 3) 0x00 iExtension 0 VideoControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 7 iTerminal 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 16 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 14 Video bInterfaceSubClass 2 Video Streaming bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 INTERFACE CLASS: 0f 24 01 02 67 01 83 00 02 00 00 00 01 00 00 INTERFACE CLASS: 0b 24 06 01 06 00 02 00 00 00 00 INTERFACE CLASS: 1e 24 07 01 00 00 08 00 06 00 00 00 5a 00 00 00 5a 00 00 60 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 1e 24 07 02 00 80 07 38 04 00 80 53 3b 00 80 53 3b 00 48 3f 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 1e 24 07 03 00 00 05 d0 02 00 00 5e 1a 00 00 5e 1a 00 20 1c 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 1e 24 07 04 00 20 03 58 02 00 a0 bb 0d 00 a0 bb 0d 00 a6 0e 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 1e 24 07 05 00 80 02 e0 01 00 00 ca 08 00 00 ca 08 00 60 09 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 1e 24 07 06 00 80 07 38 04 00 80 53 3b 00 80 53 3b 00 48 3f 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 1b 24 04 02 04 59 55 59 32 00 00 10 00 80 00 00 aa 00 38 9b 71 10 01 00 00 00 00 INTERFACE CLASS: 1e 24 05 01 00 80 07 38 04 00 40 e3 09 00 40 e3 09 00 48 3f 00 80 84 1e 00 01 80 84 1e 00 INTERFACE CLASS: 1e 24 05 02 00 00 05 d0 02 00 00 ca 08 00 00 ca 08 00 20 1c 00 40 42 0f 00 01 40 42 0f 00 INTERFACE CLASS: 1e 24 05 03 00 20 03 58 02 00 e0 93 04 00 e0 93 04 00 a6 0e 00 40 42 0f 00 01 40 42 0f 00 INTERFACE CLASS: 1e 24 05 04 00 80 02 e0 01 00 00 ca 08 00 00 ca 08 00 60 09 00 15 16 05 00 01 15 16 05 00 INTERFACE CLASS: 06 24 0d 01 01 04 Interface Association: bLength 8 bDescriptorType 11 bFirstInterface 2 bInterfaceCount 2 bFunctionClass 1 Audio bFunctionSubClass 2 Streaming bFunctionProtocol 0 iFunction 4 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 4 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 0x002f bInCollection 1 baInterfaceNr(0) 3 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0201 Microphone bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0000 iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 3 bSourceID 1 bControlSize 1 bmaControls(0) 0x03 Mute Control Volume Control bmaControls(1) 0x00 bmaControls(2) 0x00 iFeature 0 AudioControl Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 5 (SELECTOR_UNIT) bUnitID 4 bNrInPins 1 baSourceID(0) 3 iSelector 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 4 iTerminal 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bDelay 1 frames wFormatTag 0x0001 PCM AudioStreaming Interface Descriptor: bLength 11 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 1 bSubframeSize 3 bBitResolution 24 bSamFreqType 1 Discrete tSamFreq[ 0] 44100 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0130 1x 304 bytes bInterval 4 bRefresh 0 bSynchAddress 0 AudioStreaming Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0x0000 --endcollapse-- !!USB Stream information !!---------------------- --startcollapse-- C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:14.0-9.4, full spe : USB Audio Capture: Status: Stop Interface 1 Altset 1 Format: S16_LE Channels: 1 Endpoint: 0x82 (2 IN) (ADAPTIVE) Rates: 48000, 44100 Bits: 16 Channel map: MONO WebCamera WebCamera at usb-0000:00:14.0-9.3, high speed : USB Audio Capture: Status: Stop Interface 3 Altset 1 Format: S24_3LE Channels: 1 Endpoint: 0x86 (6 IN) (ASYNC) Rates: 44100 Data packet interval: 1000 us Bits: 24 Channel map: MONO --endcollapse-- !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x08bb2902, ctrlif=0, ctlerr=0 Card: C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:14.0-9.4, full spe Unit: 10 Control: name="Auto Gain Control", index=0 Info: id=10, control=7, cmask=0x0, channels=1, type="BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 10 Control: name="Mic Capture Volume", index=0 Info: id=10, control=2, cmask=0x0, channels=1, type="S16" Volume: min=0, max=6096, dBmin=0, dBmax=2381 Unit: 10 Control: name="Mic Capture Switch", index=0 Info: id=10, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 USB Mixer: usb_id=0x5843e603, ctrlif=2, ctlerr=0 Card: WebCamera WebCamera at usb-0000:00:14.0-9.3, high speed Unit: 3 Control: name="Mic Capture Volume", index=0 Info: id=3, control=2, cmask=0x0, channels=1, type="S16" Volume: min=-2049, max=5761, dBmin=-800, dBmax=2250 Unit: 3 Control: name="Mic Capture Switch", index=0 Info: id=3, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 5 Dec 23 08:35 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 3 Dec 23 08:35 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 4 Dec 23 08:49 /dev/snd/pcmC0D0c crw-rw---- 1 root audio 116, 2 Dec 23 08:49 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 1 Dec 23 08:35 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Dec 23 08:35 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 80 Dec 23 08:35 . drwxr-xr-x 4 root root 200 Dec 23 08:35 .. lrwxrwxrwx 1 root root 12 Dec 23 08:35 usb-C-Media_Electronics_Inc._USB_PnP_Sound_Device-00 -> ../controlC0 lrwxrwxrwx 1 root root 12 Dec 23 08:35 usb-WebCamera_WebCamera_20250603-02 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 120 Dec 23 08:35 . drwxr-xr-x 4 root root 200 Dec 23 08:35 .. lrwxrwxrwx 1 root root 12 Dec 23 08:35 pci-0000:00:14.0-usb-0:9.3:1.2 -> ../controlC1 lrwxrwxrwx 1 root root 12 Dec 23 08:35 pci-0000:00:14.0-usb-0:9.4:1.0 -> ../controlC0 lrwxrwxrwx 1 root root 12 Dec 23 08:35 pci-0000:00:14.0-usbv2-0:9.3:1.2 -> ../controlC1 lrwxrwxrwx 1 root root 12 Dec 23 08:35 pci-0000:00:14.0-usbv2-0:9.4:1.0 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** ARECORD **** List of CAPTURE Hardware Devices **** card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: WebCamera [WebCamera], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card Device Card sysdefault:0 'Device'/'C-Media Electronics Inc. USB PnP Sound Device at usb-0000:00:14.0-9.4, full spe' Mixer name : 'USB Mixer' Components : 'USB08bb:2902' Controls : 4 Simple ctrls : 2 Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 16 Mono: Capture 16 [100%] [23.81dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] !!-------Mixer controls for card WebCamera Card sysdefault:1 'WebCamera'/'WebCamera WebCamera at usb-0000:00:14.0-9.3, high speed' Mixer name : 'USB Mixer' Components : 'USB5843:e603' Controls : 3 Simple ctrls : 1 Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 7810 Mono: Capture 7810 [100%] [22.50dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.Device { control.1 { iface PCM name 'Capture Channel Map' value 0 comment { access 'read volatile' type INTEGER count 1 range '0 - 36' } } control.2 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'Mic Capture Volume' value 16 comment { access 'read write' type INTEGER count 1 range '0 - 16' dbmin 0 dbmax 2381 dbvalue.0 2381 } } control.4 { iface MIXER name 'Auto Gain Control' value true comment { access 'read write' type BOOLEAN count 1 } } } state.WebCamera { control.1 { iface PCM name 'Capture Channel Map' value 0 comment { access 'read volatile' type INTEGER count 1 range '0 - 36' } } control.2 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'Mic Capture Volume' value 7810 comment { access 'read write' type INTEGER count 1 range '0 - 7810' dbmin -800 dbmax 2250 dbvalue.0 2250 } } } --endcollapse-- !!All Loaded Modules !!------------------ 842_compress 842_decompress ac97_bus acer_wireless acer_wmi acpi_pad acpi_thermal_rel aesni_intel af_alg ahci algif_hash algif_skcipher async_memcpy async_pq async_raid6_recov async_tx async_xor autofs4 binfmt_misc bluetooth bnep btbcm btintel btmtk btrtl btusb ccm cec cfg80211 cmac cmdlinepart coretemp crc32_pclmul crct10dif_pclmul cryptd crypto_simd dm_crypt dmi_sysfs drm_buddy drm_display_helper drm_exec drm_gpuvm drm_suballoc_helper drm_ttm_helper ee1004 efi_pstore ghash_clmulni_intel gpu_sched hid hid_generic hid_multitouch i2c_algo_bit i2c_hid i2c_hid_acpi i2c_i801 i2c_mux i2c_smbus i915 iTCO_vendor_support iTCO_wdt idma64 igen6_edac input_leds int3400_thermal int3403_thermal int340x_thermal_zone intel_cstate intel_lpss intel_lpss_pci intel_pmc_bxt intel_pmc_core intel_powerclamp intel_rapl_common intel_rapl_msr intel_soc_dts_iosf intel_tcc_cooling intel_uncore_frequency intel_uncore_frequency_common intel_vsec ip_tables iwlmvm iwlwifi joydev kvm kvm_intel kyber_iosched libahci libarc4 libcrc32c lp lz4_compress lz4hc_compress mac80211 mac_hid mc mei mei_hdcp mei_me mei_pxp memstick msr mtd nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nf_tables nfnetlink nft_chain_nat nft_compat nls_iso8859_1 nvme nvme_auth nvme_core parport parport_pc pinctrl_tigerlake platform_profile pmt_class pmt_telemetry polyval_clmulni polyval_generic ppdev processor_thermal_device processor_thermal_device_pci_legacy processor_thermal_mbox processor_thermal_power_floor processor_thermal_rapl processor_thermal_rfim processor_thermal_wt_hint processor_thermal_wt_req qrtr r8169 raid0 raid1 raid10 raid456 raid6_pq rapl rc_core realtek rfcomm rtsx_usb rtsx_usb_ms rtsx_usb_sdmmc sch_fq_codel serio_raw sha1_ssse3 sha256_ssse3 snd snd_compress snd_hda_codec snd_hda_core snd_hda_ext_core snd_hda_intel snd_hrtimer snd_hwdep snd_intel_dspcfg snd_intel_sdw_acpi snd_pcm snd_pcm_dmaengine snd_rawmidi snd_seq snd_seq_device snd_seq_dummy snd_seq_midi snd_seq_midi_event snd_soc_acpi snd_soc_acpi_intel_match snd_soc_avs snd_soc_core snd_soc_hda_codec snd_soc_hdac_hda snd_sof snd_sof_intel_hda snd_sof_intel_hda_common snd_sof_intel_hda_generic snd_sof_intel_hda_mlink snd_sof_pci snd_sof_pci_intel_cnl snd_sof_pci_intel_tgl snd_sof_utils snd_sof_xtensa_dsp snd_timer snd_ump snd_usb_audio snd_usbmidi_lib soundcore soundwire_bus soundwire_cadence soundwire_generic_allocation soundwire_intel sparse_keymap spi_intel spi_intel_pci spi_nor system76_acpi system76_io thunderbolt ttm typec typec_ucsi ucsi_acpi usbhid uvc uvcvideo video videobuf2_common videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev vmd wmi wmi_bmof x86_pkg_temp_thermal x_tables xe xor xt_MASQUERADE xt_mark xt_tcpudp zram !!ALSA/HDA dmesg !!-------------- !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files ii alsa-ucm-conf 1.2.8-1pop1~1709769747~24.04~16ff971 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.9-1ubuntu5 amd64 Utilities for configuring and using ALSA