Question

4

Getting my USB headset to work with ChrUbuntu kernel

rated 0 times [ 4] [ 0] / answers: 1 / hits: 4872 / 3 Years ago, tue, november 16, 2021, 8:01:14

I just want to make an audio call on my brand new Ubuntu 12.04 ChruBuntu kernel from my Chromebox. For that purpose, I am trying to use 2 devices:

A logitech headset H555: http://www.logitech.com/en-au/webcam-communications/internet-headsets-phones/6810

As that is not working, I also tried a webcam, Logitech, not sure about the model, but seems to be this one: http://mobile.logitech.com/en-us/support/webcams/legacy-devices/3382

The big issue is that it doesn't show in my settings -> Sound.

enter image description here

After some search on internet, I understood that dmesg might help...

The usefull output seems to be these lines:

[34253.108017] EXT4-fs (sda5): couldn't mount RDWR because of unsupported optional features (ff000000)

[35669.588208] usb 2-1.5: USB disconnect, device number 5

[35679.288375] usb 1-1.5: USB disconnect, device number 5

[35682.803740] usb 2-1.5: new full-speed USB device number 6 using ehci_hcd

[35682.894724] usb 2-1.5: New USB device found, idVendor=046d, idProduct=0a01

[35682.894735] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0

[35682.894741] usb 2-1.5: Product: Logitech USB Headset

[35682.894746] usb 2-1.5: Manufacturer: Logitech

[36676.293997] init: Failed to create pty - disabling logging for job

[36676.294067] init: Temporary process spawn error: No such file or directory

[36744.413838] usb 2-1.5: USB disconnect, device number 6

[36784.204411] usb 1-1.6: new full-speed USB device number 21 using ehci_hcd

[36784.294884] usb 1-1.6: New USB device found, idVendor=046d, idProduct=0a01

[36784.294895] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0

[36784.294902] usb 1-1.6: Product: Logitech USB Headset

[36784.294906] usb 1-1.6: Manufacturer: Logitech

I am still searching a lot of forums and blogs but cannot find any answer on what I should do next.

Any hint?

EDIT:

Other info:

user@ChrUbuntu:~$ lspci

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor

Family DRAM Controller (rev 09)



00:02.0 VGA compatible controller: Intel Corporation 2nd Generation

Core Processor Family Integrated Graphics Controller (rev 09)



00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset

Family USB Enhanced Host Controller #2 (rev 05)



00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset

Family High Definition Audio Controller (rev 05)



00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset

Family PCI Express Root Port 1 (rev b5)



00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset

Family PCI Express Root Port 3 (rev b5)



00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset

Family PCI Express Root Port 4 (rev b5)



00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset

Family USB Enhanced Host Controller #1 (rev 05)



00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC

Controller (rev 05)



00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series

Chipset Family 6 port SATA AHCI Controller (rev 05)



00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family

SMBus Controller (rev 05)



00:1f.6 Signal processing controller: Intel Corporation 6 Series/C200

Series Chipset Family Thermal Management Controller (rev 05)



01:00.0 Network controller: Atheros Communications Inc. AR9300

Wireless LAN adaptor (rev 01)



03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.

RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)



user@ChrUbuntu:~$ cat /proc/asound/cards



0 [PCH            ]: HDA-Intel - HDA Intel PCH

                     HDA Intel PCH at 0xe0600000 irq 46

More info:

user@ChrUbuntu:~$ lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub

Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub

Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver

Bus 002 Device 009: ID 046d:0a01 Logitech, Inc. USB Headset

Bus 001 Device 022: ID 046d:08f5 Logitech, Inc. QuickCam Messenger Communicate

Bus 001 Device 006: ID 0cf3:3004 Atheros Communications, Inc.

EDIT AGAIN:

As suggested by John S Gruber, here are the lines of /var/log/udev that contains v046D
The complete output is here: http://pastebin.com/fWwCeeuu

UDEV  [2.342758] add      /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb)

ACTION=add

BUSNUM=002

DEVICE=/proc/bus/usb/002/003

DEVNAME=/dev/bus/usb/002/003

DEVNUM=003

DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2

DEVTYPE=usb_device

ID_BUS=usb

ID_MODEL=Logitech_USB_Headset

ID_MODEL_ENC=Logitechx20USBx20Headset

ID_MODEL_ID=0a01

ID_REVISION=1013

ID_SERIAL=Logitech_Logitech_USB_Headset

ID_USB_INTERFACES=:010100:010200:

ID_VENDOR=Logitech

ID_VENDOR_ENC=Logitech

ID_VENDOR_ID=046d

MAJOR=189

MINOR=130

PRODUCT=46d/a01/1013

SEQNUM=1286

SUBSYSTEM=usb

TYPE=0/0/0

UDEV_LOG=3

UPOWER_VENDOR=Logitech, Inc.

USEC_INITIALIZED=2342558

and

KERNEL[2.180449] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0 (usb)

ACTION=add

DEVICE=/proc/bus/usb/001/005

DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0

DEVTYPE=usb_interface

INTERFACE=255/255/255

MODALIAS=usb:v046Dp08F5d0100dcFFdscFFdpFFicFFiscFFipFF

PRODUCT=46d/8f5/100

SEQNUM=1282

SUBSYSTEM=usb

TYPE=255/255/255

UDEV_LOG=3

and

NOTE: These lines only appear for v046DpC52 that seems to be the mouse + keyboard that are actually working fine, I have NO line containing v046Dp0A01 (Headset) or v046Dp08F5 (webcam)

UDEV  [2.077186] add      /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.2/0003:046D:C52B.0003/input/input4 (input)

ACTION=add

DEVPATH=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.2/0003:046D:C52B.0003/input/input4

EV=17

ID_BUS=usb

ID_INPUT=1

ID_INPUT_MOUSE=1

ID_MODEL=USB_Receiver

ID_MODEL_ENC=USBx20Receiver

ID_MODEL_ID=c52b

ID_PATH=pci-0000:00:1a.0-usb-0:1.1:1.2

ID_PATH_TAG=pci-0000_00_1a_0-usb-0_1_1_1_2

ID_REVISION=1201

ID_SERIAL=Logitech_USB_Receiver

ID_TYPE=hid

ID_USB_DRIVER=usbhid

ID_USB_INTERFACES=:030101:030102:030000:

ID_USB_INTERFACE_NUM=02

ID_VENDOR=Logitech

ID_VENDOR_ENC=Logitech

ID_VENDOR_ID=046d

KEY=ffff0000 0 0 0 0

MODALIAS=input:b0003v046DpC52Be0111-e0,1,2,4,k110,111,112,113,114,115,116,117,118,119,11A,11B,11C,11D,11E,11F,r0,1,6,8,am4,lsfw

MSC=10

NAME="Logitech Unifying Device. Wireless PID:101a"

PHYS="usb-0000:00:1a.0-1.1:2"

PRODUCT=3/46d/c52b/111

PROP=0

REL=143

SEQNUM=1239

SUBSYSTEM=input

UDEV_LOG=3

UNIQ=""

USEC_INITIALIZED=2067428

Re-Re-Edit:

Aug  5 21:47:59 ChrUbuntu kernel: [ 1318.128047] usb 2-1.2: USB disconnect, device number 4

Aug  5 21:48:02 ChrUbuntu kernel: [ 1320.940343] usb 2-1.1: USB disconnect, device number 3

Aug  5 21:48:06 ChrUbuntu kernel: [ 1324.493860] usb 2-1.1: new full-speed USB device number 5 using ehci_hcd

Aug  5 21:48:06 ChrUbuntu kernel: [ 1324.580875] usb 2-1.1: New USB device found, idVendor=046d, idProduct=08f5

Aug  5 21:48:06 ChrUbuntu kernel: [ 1324.580885] usb 2-1.1: New USB device strings: Mfr=0, Product=1, SerialNumber=0

Aug  5 21:48:06 ChrUbuntu kernel: [ 1324.580891] usb 2-1.1: Product: Camera

Aug  5 21:48:06 ChrUbuntu mtp-probe: checking bus 2, device 5: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1"

Aug  5 21:48:06 ChrUbuntu mtp-probe: bus: 2, device: 5 was not an MTP device

Aug  5 21:48:21 ChrUbuntu kernel: [ 1339.603896] usb 2-1.1: USB disconnect, device number 5

Aug  5 21:48:21 ChrUbuntu kernel: [ 1339.782120] usb 2-1.1: new full-speed USB device number 6 using ehci_hcd

Aug  5 21:48:21 ChrUbuntu kernel: [ 1339.868933] usb 2-1.1: New USB device found, idVendor=046d, idProduct=08f5

Aug  5 21:48:21 ChrUbuntu kernel: [ 1339.868948] usb 2-1.1: New USB device strings: Mfr=0, Product=1, SerialNumber=0

Aug  5 21:48:21 ChrUbuntu kernel: [ 1339.868958] usb 2-1.1: Product: Camera

Aug  5 21:48:21 ChrUbuntu mtp-probe: checking bus 2, device 6: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1"

Aug  5 21:48:21 ChrUbuntu mtp-probe: bus: 2, device: 6 was not an MTP device

Aug  5 21:48:21 ChrUbuntu kernel: [ 1340.291313] usb 2-1.5: new full-speed USB device number 7 using ehci_hcd

Aug  5 21:48:22 ChrUbuntu kernel: [ 1340.382321] usb 2-1.5: New USB device found, idVendor=046d, idProduct=0a01

Aug  5 21:48:22 ChrUbuntu kernel: [ 1340.382332] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0

Aug  5 21:48:22 ChrUbuntu kernel: [ 1340.382338] usb 2-1.5: Product: Logitech USB Headset

Aug  5 21:48:22 ChrUbuntu kernel: [ 1340.382343] usb 2-1.5: Manufacturer: Logitech

Aug  5 21:48:22 ChrUbuntu mtp-probe: checking bus 2, device 7: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5"

Aug  5 21:48:22 ChrUbuntu mtp-probe: bus: 2, device: 7 was not an MTP device

lsusb -v output
(the terminal is too short to display the first lines:

      Right Front (R)

    iChannelNames           0 

    iTerminal               0 

  AudioControl Interface Descriptor:

    bLength                13

    bDescriptorType        36

    bDescriptorSubtype      4 (MIXER_UNIT)

    bUnitID                 9

    bNrInPins               2

    baSourceID( 0)         12

    baSourceID( 1)          6

    bNrChannels             2

    wChannelConfig     0x0003

      Left Front (L)

      Right Front (R)

    iChannelNames           0 

    bmControls         0x00

    iMixer                  0 

  AudioControl Interface Descriptor:

    bLength                10

    bDescriptorType        36

    bDescriptorSubtype      6 (FEATURE_UNIT)

    bUnitID                 1

    bSourceID               9

    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            14

    wTerminalType      0x0301 Speaker

    bAssocTerminal          0

    bSourceID               1

    iTerminal               0 

  AudioControl Interface Descriptor:

    bLength                12

    bDescriptorType        36

    bDescriptorSubtype      2 (INPUT_TERMINAL)

    bTerminalID            11

    wTerminalType      0x0201 Microphone

    bAssocTerminal          0

    bNrChannels             1

    wChannelConfig     0x0001

      Left Front (L)

    iChannelNames           0 

    iTerminal               0 

  AudioControl Interface Descriptor:

    bLength                 9

    bDescriptorType        36

    bDescriptorSubtype      6 (FEATURE_UNIT)

    bUnitID                 2

    bSourceID              11

    bControlSize            1

    bmaControls( 0)      0x03

      Mute Control

      Volume Control

    bmaControls( 1)      0x00

    iFeature                0 

  AudioControl Interface Descriptor:

    bLength                12

    bDescriptorType        36

    bDescriptorSubtype      4 (MIXER_UNIT)

    bUnitID                 7

    bNrInPins               1

    baSourceID( 0)          2

    bNrChannels             1

    wChannelConfig     0x0001

      Left Front (L)

    iChannelNames           0 

    bmControls         0x00

    iMixer                  0 

  AudioControl Interface Descriptor:

    bLength                 9

    bDescriptorType        36

    bDescriptorSubtype      3 (OUTPUT_TERMINAL)

    bTerminalID            10

    wTerminalType      0x0101 USB Streaming

    bAssocTerminal          0

    bSourceID               7

    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          12

    bDelay                  1 frames

    wFormatTag              1 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]        11025

    tSamFreq[ 2]        22050

    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

    AudioControl Endpoint Descriptor:

      bLength                 7

      bDescriptorType        37

      bDescriptorSubtype      1 (EP_GENERAL)

      bmAttributes         0x01

        Sampling Frequency

      bLockDelayUnits         0 Undefined

      wLockDelay              0 Undefined

Interface Descriptor:

  bLength                 9

  bDescriptorType         4

  bInterfaceNumber        1

  bAlternateSetting       2

  bNumEndpoints           1

  bInterfaceClass         1 Audio

  bInterfaceSubClass      2 Streaming

  bInterfaceProtocol      0 

  iInterface              0 

  AudioStreaming Interface Descriptor:

    bLength                 7

    bDescriptorType        36

    bDescriptorSubtype      1 (AS_GENERAL)

    bTerminalLink          12

    bDelay                  1 frames

    wFormatTag              1 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]        11025

    tSamFreq[ 2]        22050

    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     0x0060  1x 96 bytes

    bInterval               1

    bRefresh                0

    bSynchAddress           0

    AudioControl Endpoint Descriptor:

      bLength                 7

      bDescriptorType        37

      bDescriptorSubtype      1 (EP_GENERAL)

      bmAttributes         0x01

        Sampling Frequency

      bLockDelayUnits         0 Undefined

      wLockDelay              0 Undefined

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          10

    bDelay                  0 frames

    wFormatTag              1 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]        11025

    tSamFreq[ 2]        22050

    tSamFreq[ 3]        44100

    tSamFreq[ 4]        48000

  Endpoint Descriptor:

    bLength                 9

    bDescriptorType         5

    bEndpointAddress     0x84  EP 4 IN

    bmAttributes            9

      Transfer Type            Isochronous

      Synch Type               Adaptive

      Usage Type               Data

    wMaxPacketSize     0x0060  1x 96 bytes

    bInterval               1

    bRefresh                0

    bSynchAddress           0

    AudioControl Endpoint Descriptor:

      bLength                 7

      bDescriptorType        37

      bDescriptorSubtype      1 (EP_GENERAL)

      bmAttributes         0x01

        Sampling Frequency

      bLockDelayUnits         2 Decoded PCM samples

      wLockDelay              1 Decoded PCM samples

EDIT (Once again..)

After

gksu gedit /etc/modprobe.d/alsa-base.conf Change options snd-usb-audio
index=-2 to `options snd-usb-audio index=1

Then plug in your headset again.

I lost the Digital output and my headphones became output:

enter image description here

user@ChrUbuntu:~$ modprobe snd-usb-audio

FATAL: Module snd_usb_audio not found.

Syslog:

Aug 10 22:51:56 ChrUbuntu kernel: [   27.765382] usb 2-1.1: USB disconnect, device number 3

Aug 10 22:51:58 ChrUbuntu kernel: [   28.964259] usb 2-1.5: new full-speed USB device number 4 using ehci_hcd

Aug 10 22:51:58 ChrUbuntu kernel: [   29.055118] usb 2-1.5: New USB device found, idVendor=046d, idProduct=0a01

Aug 10 22:51:58 ChrUbuntu kernel: [   29.055128] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0

Aug 10 22:51:58 ChrUbuntu kernel: [   29.055135] usb 2-1.5: Product: Logitech USB Headset

Aug 10 22:51:58 ChrUbuntu kernel: [   29.055139] usb 2-1.5: Manufacturer: Logitech

Aug 10 22:51:58 ChrUbuntu mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5"

Aug 10 22:51:58 ChrUbuntu mtp-probe: bus: 2, device: 4 was not an MTP device

Cards:

 0 [PCH            ]: HDA-Intel - HDA Intel PCH

                      HDA Intel PCH at 0xe0600000 irq 46

Devices:

  2: [ 0- 8]: digital audio playback

  3: [ 0- 7]: digital audio playback

  4: [ 0- 3]: digital audio playback

  5: [ 0- 0]: digital audio playback

  6: [ 0- 0]: digital audio capture

  7: [ 0- 3]: hardware dependent

  8: [ 0- 0]: hardware dependent

  9: [ 0]   : control

 33:        : timer





user@ChrUbuntu:~$ uname -a

Linux ChrUbuntu 3.2.7 #1 SMP Tue Jun 26 23:10:36 PDT 2012 x86_64 x86_64 x86_64 GNU/Linux

bash: /home/user/.bashrc: line 110: unexpected EOF while looking for matching `''
bash: /home/user/.bashrc: line 114: syntax error: unexpected end of file

user@ChrUbuntu:~$ locate snd-usb-audio

/lib/modules/3.2.0-23-generic/kernel/sound/usb/snd-usb-audio.ko

/lib/modules/3.2.0-24-generic/kernel/sound/usb/snd-usb-audio.ko

/lib/modules/3.2.0-26-generic/kernel/sound/usb/snd-usb-audio.ko

/lib/modules/3.2.0-27-generic/kernel/sound/usb/snd-usb-audio.ko

/lib/modules/3.2.0-29-generic/kernel/sound/usb/snd-usb-audio.ko

user@ChrUbuntu:~$ lsmod

Module                  Size  Used by

fuse                   59804  2 

snd_hda_codec_hdmi     29062  1 

snd_hda_codec_cirrus    20544  1 

rfcomm                 25259  0 

joydev                 16448  0 

hid_logitech_dj        16448  0 

ath3k                  12352  0 

bluetooth             116787  10 rfcomm,ath3k

snd_hda_intel          24640  3 

ath9k                 117696  0 

snd_hda_codec          67292  3 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel

snd_hwdep              12390  1 snd_hda_codec

mac80211              198984  1 ath9k

ath9k_common           12643  1 ath9k

ath9k_hw              363295  2 ath9k,ath9k_common

ath                    21066  3 ath9k,ath9k_common,ath9k_hw

snd_pcm                61378  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec

memconsole             12352  0 

cfg80211              140766  3 ath9k,mac80211,ath

r8169                  45120  0 

snd_timer              21094  1 snd_pcm

rtc_cmos               16448  0 

snd_page_alloc         12757  2 snd_hda_intel,snd_pcm

nm10_gpio              12352  0 

user@ChrUbuntu:~$

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answered 3 Years ago poefor · Accepted Answer

It seems to me that you are using a custom kernel, since linux 3.2.7, as listed in your uname -a output has a higher version number than the current release 12.04 kernel (3.2.0-29). (It's also lower than the current 12.10 kernel).

Looking at the output of lsmod we can see that there is no module snd_usb_audio in the list of loaded modules. You need that to run most USB audio devices that use the USB standard for audio devices.

The locate command lists several snd_usb_audio modules, but not for your running kernel.

I'd suggest you use a standard kernel and see if that doesn't detect and support your headphones.

If you have compiled the custom kernel yourself, you may wish to make that work, I'd suggest making snd_usb_audio a module by changing the corresponding kernel config variables, recompile the kernel, and run make modules_install as well as make install to reinstall the remade custom kernel. I recognize that this kernel may have snd_usb_audio linked into the kernel, in which case I don't know why the custom kernel isn't using it properly to install the necessary audio devices.

CONFIG_SND_USB=y

CONFIG_SND_USB_AUDIO=m