[LAD] Cracking sound via USB (ALSA urb.c:480: frame 5 active: -18)

Aurélien Leblond blablack at gmail.com
Mon May 23 20:20:34 UTC 2011


Hi,

I seem to have an issue with USB soundcards on my laptop.
I have tried two of them, but I keep getting crackling sounds while playing
with Ardour or Hydrogen.
Everytime this crackling sounds occur, I get the following in dmesg:
ALSA urb.c:480: frame 5 active: -18

The Kernel is 2.6.39 with Irqthreads, Alsa is the git version (1.0.24).

I have tried a lot of things already, but I'm really ready to restart the
investigation from scratch and to provide any information!

Thanks in advance for the help.

dmesg details:
[ 41.927872] CE: hpet2 increased min_delta_ns to 7500 nsec
[ 41.927897] CE: hpet2 increased min_delta_ns to 11250 nsec
[ 75.569991] CE: hpet5 increased min_delta_ns to 7500 nsec
[ 75.570003] CE: hpet5 increased min_delta_ns to 11250 nsec
[ 79.234811] ALSA urb.c:480: frame 1 active: -71
[ 102.065990] CE: hpet4 increased min_delta_ns to 7500 nsec
[ 102.066005] CE: hpet4 increased min_delta_ns to 11250 nsec
[ 147.964992] ALSA urb.c:480: frame 5 active: -18
[ 185.833311] ALSA urb.c:480: frame 4 active: -18
[ 271.091937] ALSA urb.c:480: frame 1 active: -18
[ 276.686711] ALSA urb.c:480: frame 1 active: -18
[ 300.120588] ALSA urb.c:480: frame 0 active: -18
[ 302.416319] CE: hpet increased min_delta_ns to 30169 nsec
[ 318.225546] ALSA urb.c:480: frame 7 active: -18
[ 318.433469] ALSA urb.c:480: frame 7 active: -18

lsusb -v gives (only the details about the soundcard):
Bus 001 Device 003: ID 0763:2080 Midiman M-Audio RunTime DFU
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x0763 Midiman
  idProduct          0x2080 M-Audio RunTime DFU
  bcdDevice            1.51
  iManufacturer           1 M-Audio
  iProduct                2 Fast Track Ultra
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          340
    bNumInterfaces          5
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xc0
      Self Powered
    MaxPower                0mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         5
      bFunctionClass        255 Vendor Specific Class
      bFunctionSubClass       1
      bFunctionProtocol       0
      iFunction               2 Fast Track Ultra
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      1
      bInterfaceProtocol      0
      iInterface              2 Fast Track Ultra
      ** UNRECOGNIZED:  0b 24 01 00 01 34 00 03 01 02 03
      ** UNRECOGNIZED:  0c 24 02 01 03 06 00 08 03 00 00 00
      ** UNRECOGNIZED:  09 24 03 02 01 01 00 01 00
      ** UNRECOGNIZED:  0c 24 02 03 01 01 00 08 03 00 00 00
      ** UNRECOGNIZED:  09 24 03 04 03 06 00 03 00
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
      ** UNRECOGNIZED:  07 24 01 03 01 01 00
      ** UNRECOGNIZED:  14 24 02 01 08 03 18 04 44 ac 00 80 bb 00 88 58 01
00 77 01
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0138  1x 312 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0003  1x 3 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
      ** UNRECOGNIZED:  07 24 01 02 01 01 00
      ** UNRECOGNIZED:  14 24 02 01 08 03 18 04 44 ac 00 80 bb 00 88 58 01
00 77 01
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0138  1x 312 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       2
      bNumEndpoints           1
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
      ** UNRECOGNIZED:  07 24 01 02 01 01 00
      ** UNRECOGNIZED:  14 24 02 01 08 03 18 04 44 ac 00 80 bb 00 88 58 01
00 77 01
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0138  1x 312 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         1 Audio
      bInterfaceSubClass      3 MIDI Streaming
      bInterfaceProtocol      0
      iInterface              5 Fast Track Ultra
      MIDIStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength           63
      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                 8
        bDescriptorType        36
        bDescriptorSubtype      3 (MIDI_OUT_JACK)
      Warning: Descriptor too short
        bJackType               1 Embedded
        bJackID                 3
        bNrInputPins            1
        baSourceID( 0)          2
        BaSourcePin( 0)         1
        iJack                   8
      MIDIStreaming Interface Descriptor:
        bLength                 8
        bDescriptorType        36
        bDescriptorSubtype      3 (MIDI_OUT_JACK)
      Warning: Descriptor too short
        bJackType               2 External
        bJackID                 4
        bNrInputPins            1
        baSourceID( 0)          1
        BaSourcePin( 0)         1
        iJack                   0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x07  EP 7 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               8
        MIDIStreaming Endpoint Descriptor:
          bLength                 5
          bDescriptorType        37
          bDescriptorSubtype      1 (GENERAL)
          bNumEmbMIDIJack         1
          baAssocJackID( 0)       1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               0
        MIDIStreaming Endpoint Descriptor:
          bLength                 5
          bDescriptorType        37
          bDescriptorSubtype      1 (GENERAL)
          bNumEmbMIDIJack         1
          baAssocJackID( 0)       3
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        4
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       254 Application Specific Interface
      bInterfaceSubClass      1 Device Firmware Update
      bInterfaceProtocol      0
      iInterface              7 M-Audio DFU
      Device Firmware Upgrade Interface Descriptor:
        bLength                             9
        bDescriptorType                    33
        bmAttributes                        1
          Will Not Detach
          Manifestation Intolerant
          Upload Unsupported
          Download Supported
        wDetachTimeout                   2000 milliseconds
        wTransferSize                    1024 bytes
        bcdDFUVersion                   1.10
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0001
  Self Powered
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