!!################################ !!ALSA Information Script v 0.4.66 !!################################ !!Script ran on: Sat Feb 27 00:25:44 UTC 2021 !!Linux Distribution !!------------------ ID_LIKE=arch !!DMI Information !!--------------- Manufacturer: LENOVO Product Name: 81C4 Product Version: Lenovo YOGA C930-13IKB Firmware Version: 8GCN32WW System SKU: LENOVO_MT_81C4_BU_idea_FM_YOGA C930-13IKB Board Vendor: LENOVO Board Name: LNVNB161216 !!ACPI Device Status Information !!--------------- /sys/bus/acpi/devices/ACPI0003:00/status 15 /sys/bus/acpi/devices/ACPI000C:00/status 15 /sys/bus/acpi/devices/IDEA0100:00/status 15 /sys/bus/acpi/devices/INT0E0C:00/status 15 /sys/bus/acpi/devices/INT33A1:00/status 15 /sys/bus/acpi/devices/INT33D0:00/status 15 /sys/bus/acpi/devices/INT33D3:00/status 15 /sys/bus/acpi/devices/INT3400:00/status 15 /sys/bus/acpi/devices/INT3403:01/status 15 /sys/bus/acpi/devices/INT340E:00/status 15 /sys/bus/acpi/devices/INT3F0D:00/status 15 /sys/bus/acpi/devices/ITE8353:00/status 15 /sys/bus/acpi/devices/LIC0001:00/status 15 /sys/bus/acpi/devices/PNP0103:00/status 15 /sys/bus/acpi/devices/PNP0C02:00/status 3 /sys/bus/acpi/devices/PNP0C02:05/status 3 /sys/bus/acpi/devices/PNP0C09:00/status 15 /sys/bus/acpi/devices/PNP0C0A:00/status 31 /sys/bus/acpi/devices/PNP0C0C:00/status 15 /sys/bus/acpi/devices/PNP0C0D:00/status 15 /sys/bus/acpi/devices/PNP0C0F:00/status 9 /sys/bus/acpi/devices/PNP0C0F:01/status 9 /sys/bus/acpi/devices/PNP0C0F:02/status 9 /sys/bus/acpi/devices/PNP0C0F:03/status 9 /sys/bus/acpi/devices/PNP0C0F:04/status 9 /sys/bus/acpi/devices/PNP0C0F:05/status 9 /sys/bus/acpi/devices/PNP0C0F:06/status 9 /sys/bus/acpi/devices/PNP0C0F:07/status 9 /sys/bus/acpi/devices/SYNA2B31:00/status 15 /sys/bus/acpi/devices/USBC000:00/status 15 /sys/bus/acpi/devices/VPC2004:00/status 15 /sys/bus/acpi/devices/WCOM5195:00/status 15 /sys/bus/acpi/devices/YMC2017:00/status 15 /sys/bus/acpi/devices/device:17/status 15 /sys/bus/acpi/devices/device:20/status 15 /sys/bus/acpi/devices/device:32/status 15 !!Kernel Information !!------------------ Kernel release: 5.9.16-1-MANJARO Operating System: GNU/Linux Architecture: x86_64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.9.16-1-MANJARO Library version: 1.2.4 Utilities version: 1.2.4 !!Loaded ALSA modules !!------------------- snd_usb_audio (card 0) !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes Jack: Installed - Yes (/usr/bin/jackd) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [Audio ]: USB-Audio - ThinkPad USB-C Dock Audio Lenovo ThinkPad USB-C Dock Audio at usb-0000:00:14.0-3.4.2.3, full speed !!PCI Soundcards installed in the system !!-------------------------------------- 00:1f.3 Multimedia audio controller [0401]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21) Subsystem: Lenovo Device [17aa:3831] !!Modprobe options (Sound related) !!-------------------------------- snd_hda_intel: index=0 model=auto vid=8086 pid=9d71 snd_hda_intel: index=1 model=auto vid=8086 pid=9d71 !!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 index : -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 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) 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: !!USB Descriptors !!--------------- --startcollapse-- Bus 001 Device 012: ID 17ef:3063 Lenovo ThinkPad Dock Audio Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x17ef Lenovo idProduct 0x3063 ThinkPad Dock Audio bcdDevice 9.02 iManufacturer 1 Lenovo iProduct 2 ThinkPad USB-C Dock Audio iSerial 3 000000000000 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x00f2 bNumInterfaces 4 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 10 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 0x0047 bInCollection 2 baInterfaceNr(0) 1 baInterfaceNr(1) 2 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0201 Microphone bAssocTerminal 0 bNrChannels 1 wChannelConfig 0x0000 iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 2 bSourceID 1 bControlSize 1 bmaControls(0) 0x41 Mute Control Automatic Gain Control bmaControls(1) 0x02 Volume Control iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 2 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 4 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 5 bSourceID 4 bControlSize 1 bmaControls(0) 0x01 Mute Control bmaControls(1) 0x02 Volume Control bmaControls(2) 0x02 Volume Control iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 6 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 5 iTerminal 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 3 bDelay 1 frames wFormatTag 0x0001 PCM AudioStreaming Interface Descriptor: bLength 23 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 1 bSubframeSize 2 bBitResolution 16 bSamFreqType 5 Discrete tSamFreq[ 0] 8000 tSamFreq[ 1] 16000 tSamFreq[ 2] 32000 tSamFreq[ 3] 44100 tSamFreq[ 4] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0060 1x 96 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 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 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 4 bDelay 3 frames wFormatTag 0x0001 PCM AudioStreaming Interface Descriptor: bLength 23 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 5 Discrete tSamFreq[ 0] 8000 tSamFreq[ 1] 16000 tSamFreq[ 2] 32000 tSamFreq[ 3] 44100 tSamFreq[ 4] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x00c0 1x 192 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioStreaming Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 1 Milliseconds wLockDelay 0x0004 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 120 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0023 1x 35 bytes bInterval 20 Device Status: 0x0000 (Bus Powered) --endcollapse-- !!USB Stream information !!---------------------- --startcollapse-- Lenovo ThinkPad USB-C Dock Audio at usb-0000:00:14.0-3.4.2.3, full speed : USB Audio Playback: Status: Running Interface = 2 Altset = 1 Packet Size = 192 Momentary freq = 48000 Hz (0x30.0000) Interface 2 Altset 1 Format: S16_LE Channels: 2 Endpoint: 1 OUT (ADAPTIVE) Rates: 8000, 16000, 32000, 44100, 48000 Bits: 16 Channel map: FL FR Capture: Status: Stop Interface 1 Altset 1 Format: S16_LE Channels: 1 Endpoint: 1 IN (ASYNC) Rates: 8000, 16000, 32000, 44100, 48000 Bits: 16 Channel map: MONO --endcollapse-- !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x17ef3063, ctrlif=0, ctlerr=0 Card: Lenovo ThinkPad USB-C Dock Audio at usb-0000:00:14.0-3.4.2.3, full speed Unit: 2 Control: name="Auto Gain Control", index=0 Info: id=2, control=7, cmask=0x0, channels=1, type="BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 2 Control: name="Mic Capture Volume", index=0 Info: id=2, control=2, cmask=0x1, channels=1, type="S16" Volume: min=-7680, max=0, dBmin=-3000, dBmax=0 Unit: 2 Control: name="Mic Capture Switch", index=0 Info: id=2, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 5 Control: name="PCM Playback Volume", index=0 Info: id=5, control=2, cmask=0x3, channels=2, type="S16" Volume: min=-12800, max=0, dBmin=-5000, dBmax=0 Unit: 5 Control: name="PCM Playback Switch", index=0 Info: id=5, 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, 4 Feb 27 00:57 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 3 Feb 27 00:57 /dev/snd/pcmC0D0c crw-rw---- 1 root audio 116, 2 Feb 27 01:02 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 1 Feb 27 00:57 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Feb 27 00:57 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Feb 27 00:57 . drwxr-xr-x 4 root root 180 Feb 27 00:57 .. lrwxrwxrwx 1 root root 12 Feb 27 00:57 usb-Lenovo_ThinkPad_USB-C_Dock_Audio_000000000000-00 -> ../controlC0 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Feb 27 00:57 . drwxr-xr-x 4 root root 180 Feb 27 00:57 .. lrwxrwxrwx 1 root root 12 Feb 27 00:57 pci-0000:00:14.0-usb-0:3.4.2.3:1.0 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: Audio [ThinkPad USB-C Dock Audio], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 0: Audio [ThinkPad USB-C Dock Audio], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card Audio Card hw:0 'Audio'/'Lenovo ThinkPad USB-C Dock Audio at usb-0000:00:14.0-3.4.2.3, full speed' Mixer name : 'USB Mixer' Components : 'USB17ef:3063' Controls : 8 Simple ctrls : 3 Simple mixer control 'PCM',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 50 Mono: Front Left: Playback 39 [78%] [-11.00dB] [on] Front Right: Playback 39 [78%] [-11.00dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 30 Mono: Capture 30 [100%] [0.00dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] !!Alsactl output !!-------------- --startcollapse-- state.Audio { control.1 { iface PCM name 'Capture Channel Map' value 0 comment { access read type INTEGER count 1 range '0 - 36' } } control.2 { iface PCM name 'Playback Channel Map' value.0 3 value.1 4 comment { access read type INTEGER count 2 range '0 - 36' } } control.3 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.4 { iface MIXER name 'Mic Capture Volume' value 30 comment { access 'read write' type INTEGER count 1 range '0 - 30' dbmin -3000 dbmax 0 dbvalue.0 0 } } control.5 { iface MIXER name 'Auto Gain Control' value false comment { access 'read write' type BOOLEAN count 1 } } control.6 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.7 { iface MIXER name 'PCM Playback Volume' value.0 39 value.1 39 comment { access 'read write' type INTEGER count 2 range '0 - 50' dbmin -5000 dbmax 0 dbvalue.0 -1100 dbvalue.1 -1100 } } control.8 { iface CARD name 'Keep Interface' value false comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ 8250_dw ac ac97_bus acpi_thermal_rel aesni_intel af_alg agpgart algif_hash algif_skcipher atkbd battery bluetooth bnep btbcm btintel btrtl btusb ccm cdc_ether cec cfg80211 cmac coretemp crc16 crc32_pclmul crc32c_generic crc32c_intel crct10dif_pclmul cryptd crypto_simd crypto_user drm drm_kms_helper ecc ecdh_generic evdev ext4 fat fb_sys_fops fuse ghash_clmulni_intel glue_helper hid hid_generic hid_multitouch hid_sensor_accel_3d hid_sensor_als hid_sensor_hub hid_sensor_iio_common hid_sensor_trigger i2c_algo_bit i2c_hid i2c_i801 i2c_smbus i8042 i915 iTCO_vendor_support iTCO_wdt ideapad_laptop idma64 industrialio industrialio_triggered_buffer input_leds int3400_thermal int3403_thermal int340x_thermal_zone intel_cstate intel_gtt intel_lpss intel_lpss_pci intel_pch_thermal intel_pmc_bxt intel_powerclamp intel_rapl_common intel_rapl_msr intel_soc_dts_iosf intel_uncore intel_wmi_thunderbolt intel_xhci_usb_role_switch ip_tables irqbypass iwlmvm iwlwifi jbd2 joydev kfifo_buf kvm kvm_intel libarc4 libps2 loop mac80211 mac_hid mbcache mc mei mei_hdcp mei_me mii mousedev nls_cp437 nls_iso8859_1 pcspkr processor_thermal_device r8152 rapl rc_core rfcomm rfkill roles serio serio_raw snd snd_compress snd_hda_codec snd_hda_core snd_hda_ext_core snd_hda_intel snd_hwdep snd_intel_dspcfg snd_pcm snd_pcm_dmaengine snd_rawmidi snd_seq_device snd_soc_acpi snd_soc_acpi_intel_match snd_soc_core snd_soc_dmic snd_soc_hdac_hdmi snd_soc_skl snd_soc_skl_hda_dsp snd_soc_skl_ssp_clk snd_soc_sst_dsp snd_soc_sst_ipc snd_timer snd_usb_audio snd_usbmidi_lib soundcore sparse_keymap squashfs syscopyarea sysfillrect sysimgblt typec typec_ucsi ucsi_acpi uinput usbhid usbnet uvcvideo vfat videobuf2_common videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev wacom wmi wmi_bmof x86_pkg_temp_thermal x_tables xhci_hcd xhci_pci !!ALSA/HDA dmesg !!-------------- [ 0.143811] ACPI: Added _OSI(Linux-Dell-Video) [ 0.143811] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 0.143811] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) -- [ 2.036974] i2c_hid i2c-ITE8353:00: supply vddl not found, using dummy regulator [ 2.049795] snd_hda_intel: unknown parameter 'vid' ignored [ 2.049797] snd_hda_intel: unknown parameter 'pid' ignored [ 2.049799] snd_hda_intel: unknown parameter 'vid' ignored [ 2.049800] snd_hda_intel: unknown parameter 'pid' ignored [ 2.049904] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 [ 2.049907] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake platform, using SST driver [ 2.069180] usb 1-3.2: New USB device found, idVendor=17ef, idProduct=3060, bcdDevice= 0.00 -- [ 2.270278] pcieport 0000:00:1c.0: PME: Spurious native interrupt! [ 2.294789] snd_soc_skl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100 [ 2.294796] snd_soc_skl 0000:00:1f.3: Digital mics found on Skylake platform, using SST driver [ 2.326396] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' -- [ 3.215908] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input23 [ 3.216255] snd_soc_skl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 3.241981] usb 1-3.4.3: New USB device found, idVendor=046d, idProduct=c077, bcdDevice=72.00 -- [ 3.247752] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device [ 3.255972] HDMI HDA Codec ehdaudio0D2: Max dais supported: 3 [ 3.329359] wrong crc0a 20 20 20 20 00 00 00 fd 00 3b 3d 1f 44 0f 00 -- [ 3.976671] r8152 4-2.1:1.0 enp55s0u2u1: renamed from eth0 [ 5.390143] usbcore: registered new interface driver snd-usb-audio [ 5.782537] kauditd_printk_skb: 39 callbacks suppressed