USB soundcard unusable through usb-hub

Bug #34002 reported by Håvard H. Garnes on 2006-03-07
18
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Unassigned
linux-source-2.6.15 (Ubuntu)
Medium
Unassigned
linux-source-2.6.20 (Ubuntu)
Undecided
Unassigned

Bug Description

When I try using my USB-soundcard through my USB-hub, the kernel spews this error into the logs _a_lot_:

cannot submit datapipe for urb 0, err = -38

and errormessages from the program goes like "pipe error", or
ALSA lib pcm_direct.c:900:(snd_pcm_direct_initialize_slave) unable to install hw params

The soundcard worked fine in 2.6.12-10, the latest kernel in breezy. If I plug it directly into the computer it works as it should.

lsusb -v: (while directly linked to computer, linked via hub below, hub at bottom)

Bus 001 Device 010: ID 041e:3010 Creative Technology, Ltd SoundBlaster MP3+
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 1.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x041e Creative Technology, Ltd
  idProduct 0x3010 SoundBlaster MP3+
  bcdDevice 1.00
  iManufacturer 0
  iProduct 1 USB Audio
  iSerial 0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 294
    bNumInterfaces 3
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0x80
      (Bus Powered)
    MaxPower 500mA
    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 169
        bInCollection 2
        baInterfaceNr( 0) 1
        baInterfaceNr( 1) 2
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 1
        wTerminalType 0x0101 USB Streaming
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 2
        wTerminalType 0x0201 Microphone
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 3
        wTerminalType 0x0603 Line Connector
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 4
        wTerminalType 0x0605 SPDIF interface
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 5
        wTerminalType 0x0605 SPDIF interface
        bAssocTerminal 0
        bSourceID 1
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 6
        wTerminalType 0x0301 Speaker
        bAssocTerminal 0
        bSourceID 9
        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 9
        bDescriptorType 36
        bDescriptorSubtype 5 (SELECTOR_UNIT)
        bUnitID 8
        bNrInPins 3
        baSource( 0) 10
        baSource( 1) 11
        baSource( 2) 12
        iSelector 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 9
        bSourceID 15
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x02
          Volume
        bmaControls( 2) 0x02
          Volume
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 10
        bSourceID 2
        bControlSize 1
        bmaControls( 0) 0x43
          Mute
          Volume
          Automatic Gain
        bmaControls( 1) 0x00
        bmaControls( 2) 0x00
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 11
        bSourceID 3
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x02
          Volume
        bmaControls( 2) 0x02
          Volume
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 12
        bSourceID 4
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x00
        bmaControls( 2) 0x00
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 13
        bSourceID 2
        bControlSize 1
        bmaControls( 0) 0x03
          Mute
          Volume
        bmaControls( 1) 0x00
        bmaControls( 2) 0x00
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 14
        bSourceID 3
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x02
          Volume
        bmaControls( 2) 0x02
          Volume
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 15
        bDescriptorType 36
        bDescriptorSubtype 4 (MIXER_UNIT)
        bUnitID 15
        bNrInPins 3
        baSourceID( 0) 1
        baSourceID( 1) 13
        baSourceID( 2) 14
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        bmControls 0x00
        iMixer 0
        junk at descriptor end: 00
    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 1
        bDelay 3 frames
        wFormatTag 1 PCM
      AudioStreaming Interface Descriptor:
        bLength 11
        bDescriptorType 36
        bDescriptorSubtype 2 (FORMAT_TYPE)
        bFormatType 1 (FORMAT_TYPE_I)
        bNrChannels 2
        bSubframeSize 2
        bBitResolution 16
        bSamFreqType 1 Discrete
        tSamFreq[ 0] 48000
      Endpoint Descriptor:
        bLength 9
        bDescriptorType 5
        bEndpointAddress 0x01 EP 1 OUT
        bmAttributes 9
          Transfer Type Isochronous
          Synch Type Adaptive
          Usage Type Data
        wMaxPacketSize 0x00c8 1x 200 bytes
        bInterval 1
        bRefresh 0
        bSynchAddress 0
        AudioControl Endpoint Descriptor:
          bLength 7
          bDescriptorType 37
          bDescriptorSubtype 1 (EP_GENERAL)
          bmAttributes 0x00
          bLockDelayUnits 1 Milliseconds
          wLockDelay 4 Milliseconds
    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 7
        bDelay 1 frames
        wFormatTag 1 PCM
      AudioStreaming Interface Descriptor:
        bLength 14
        bDescriptorType 36
        bDescriptorSubtype 2 (FORMAT_TYPE)
        bFormatType 1 (FORMAT_TYPE_I)
        bNrChannels 2
        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 5
          Transfer Type Isochronous
          Synch Type Asynchronous
          Usage Type Data
        wMaxPacketSize 0x00c8 1x 200 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
Device Status: 0x0000
  (Bus Powered)

-----------------------------------------------------------------------------------------------------------------

Linked via hub:

Bus 003 Device 010: ID 041e:3010 Creative Technology, Ltd SoundBlaster MP3+
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 1.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x041e Creative Technology, Ltd
  idProduct 0x3010 SoundBlaster MP3+
  bcdDevice 1.00
  iManufacturer 0
  iProduct 1 USB Audio
  iSerial 0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 294
    bNumInterfaces 3
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0x80
      (Bus Powered)
    MaxPower 500mA
    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 169
        bInCollection 2
        baInterfaceNr( 0) 1
        baInterfaceNr( 1) 2
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 1
        wTerminalType 0x0101 USB Streaming
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 2
        wTerminalType 0x0201 Microphone
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 3
        wTerminalType 0x0603 Line Connector
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 4
        wTerminalType 0x0605 SPDIF interface
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 5
        wTerminalType 0x0605 SPDIF interface
        bAssocTerminal 0
        bSourceID 1
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 6
        wTerminalType 0x0301 Speaker
        bAssocTerminal 0
        bSourceID 9
        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 9
        bDescriptorType 36
        bDescriptorSubtype 5 (SELECTOR_UNIT)
        bUnitID 8
        bNrInPins 3
        baSource( 0) 10
        baSource( 1) 11
        baSource( 2) 12
        iSelector 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 9
        bSourceID 15
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x02
          Volume
        bmaControls( 2) 0x02
          Volume
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 10
        bSourceID 2
        bControlSize 1
        bmaControls( 0) 0x43
          Mute
          Volume
          Automatic Gain
        bmaControls( 1) 0x00
        bmaControls( 2) 0x00
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 11
        bSourceID 3
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x02
          Volume
        bmaControls( 2) 0x02
          Volume
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 12
        bSourceID 4
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x00
        bmaControls( 2) 0x00
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 13
        bSourceID 2
        bControlSize 1
        bmaControls( 0) 0x03
          Mute
          Volume
        bmaControls( 1) 0x00
        bmaControls( 2) 0x00
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 10
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 14
        bSourceID 3
        bControlSize 1
        bmaControls( 0) 0x01
          Mute
        bmaControls( 1) 0x02
          Volume
        bmaControls( 2) 0x02
          Volume
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 15
        bDescriptorType 36
        bDescriptorSubtype 4 (MIXER_UNIT)
        bUnitID 15
        bNrInPins 3
        baSourceID( 0) 1
        baSourceID( 1) 13
        baSourceID( 2) 14
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        bmControls 0x00
        iMixer 0
        junk at descriptor end: 00
    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 1
        bDelay 3 frames
        wFormatTag 1 PCM
      AudioStreaming Interface Descriptor:
        bLength 11
        bDescriptorType 36
        bDescriptorSubtype 2 (FORMAT_TYPE)
        bFormatType 1 (FORMAT_TYPE_I)
        bNrChannels 2
        bSubframeSize 2
        bBitResolution 16
        bSamFreqType 1 Discrete
        tSamFreq[ 0] 48000
      Endpoint Descriptor:
        bLength 9
        bDescriptorType 5
        bEndpointAddress 0x01 EP 1 OUT
        bmAttributes 9
          Transfer Type Isochronous
          Synch Type Adaptive
          Usage Type Data
        wMaxPacketSize 0x00c8 1x 200 bytes
        bInterval 1
        bRefresh 0
        bSynchAddress 0
        AudioControl Endpoint Descriptor:
          bLength 7
          bDescriptorType 37
          bDescriptorSubtype 1 (EP_GENERAL)
          bmAttributes 0x00
          bLockDelayUnits 1 Milliseconds
          wLockDelay 4 Milliseconds
    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 7
        bDelay 1 frames
        wFormatTag 1 PCM
      AudioStreaming Interface Descriptor:
        bLength 14
        bDescriptorType 36
        bDescriptorSubtype 2 (FORMAT_TYPE)
        bFormatType 1 (FORMAT_TYPE_I)
        bNrChannels 2
        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 5
          Transfer Type Isochronous
          Synch Type Asynchronous
          Usage Type Data
        wMaxPacketSize 0x00c8 1x 200 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
Device Status: 0x0000
  (Bus Powered)

-------------------------------------------------------------------------------------------------------------

The hub:

Bus 003 Device 002: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 USB-2.0 "TetraHub"
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 2.00
  bDeviceClass 9 Hub
  bDeviceSubClass 0 Unused
  bDeviceProtocol 2 TT per port
  bMaxPacketSize0 64
  idVendor 0x04b4 Cypress Semiconductor Corp.
  idProduct 0x6560 CY7C65640 USB-2.0 "TetraHub"
  bcdDevice 0.08
  iManufacturer 0
  iProduct 0
  iSerial 0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 41
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0xe0
      Self Powered
      Remote Wakeup
    MaxPower 100mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 1
      bInterfaceClass 9 Hub
      bInterfaceSubClass 0 Unused
      bInterfaceProtocol 1 Single TT
      iInterface 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 3
          Transfer Type Interrupt
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0001 1x 1 bytes
        bInterval 12
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 1
      bNumEndpoints 1
      bInterfaceClass 9 Hub
      bInterfaceSubClass 0 Unused
      bInterfaceProtocol 2 TT per port
      iInterface 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 3
          Transfer Type Interrupt
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0001 1x 1 bytes
        bInterval 12
Hub Descriptor:
  bLength 9
  bDescriptorType 41
  nNbrPorts 4
  wHubCharacteristic 0x0089
    Per-port power switching
    Per-port overcurrent protection
    TT think time 8 FS bits
    Port indicators
  bPwrOn2PwrGood 50 * 2 milli seconds
  bHubContrCurrent 100 milli Ampere
  DeviceRemovable 0xf8
  PortPwrCtrlMask 0xc0
 Hub Port Status:
   Port 1: 0000.0303 lowspeed power enable connect
   Port 2: 0000.0100 power
   Port 3: 0000.0100 power
   Port 4: 0000.0103 power enable connect
Device Qualifier (for other device speed):
  bLength 10
  bDescriptorType 6
  bcdUSB 2.00
  bDeviceClass 9 Hub
  bDeviceSubClass 0 Unused
  bDeviceProtocol 0
  bMaxPacketSize0 64
  bNumConfigurations 1
Device Status: 0x0001
  Self Powered

description: updated
Soewono Effendi (seffendi) wrote :

I have the same problem too.
USB Audio works fine if I use USB 1.1 Hub (uhci_hcd), but it fails if using USB 2.0 Hub (ehci_hcd).

Note: I'm using Alsa with OSS-Emulation.

Changed in linux-source-2.6.15:
status: Unconfirmed → Confirmed
Stephen Irons (stephen-irons) wrote :

Same problem with cheapo PU552 USB 3D SOUND adapter with Feisty, kernel version 2.6.20-16-generic. This seems to be the same as

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/28840

Should this be another duplicate of that bug? It already has two...

Thank you for taking the time to report this bug and helping to make Ubuntu better. Now that the 7.10 Gutsy Gibbon release of Ubuntu is out, we were wondering if you can still reproduce this issue. Could you please download and try the new version of Ubuntu from http://www.ubuntu.com/getubuntu/download and report back your results. If the issue is still present in the new release, please attach the following information:

* uname -a > uname-a.log
* cat /proc/version_signature > version.log
* dmesg > dmesg.log
* sudo lspci -vvnn > lspci-vvnn.log

Please be sure to attach each file as a separate attachment. For more information regarding the kernel team bug policy, please refer to https://wiki.ubuntu.com/KernelTeamBugPolicies . Thanks again and we appreciate your help and feedback.

Changed in linux-source-2.6.20:
status: New → Incomplete
nSTER (navst3r) wrote :

I have had this same problem since fiesty (when I started using ubuntu). I have a 2.0 powered usb hub and a plantronics dsp-500 headsets. I have tried it with a 1.1 usb hub and it does work fine. Not really knowing the problem relied in the kernel, i have tried every distro ubuntu has to offer and they all have the same problem. It usually ranges from, the sound not working at all from boot, music programs(Amarok,Exaile, and more) crashing, and the song just plays 2 seconds and then the sound cuts out when the music is still playing (Have to restart the song multiple times or pause and unpause for it to work). I hope there is some progress in this problem because I am limited in usb ports on my laptop.

Thank You

P.S: All the information is attached I am currently using Xubuntu 7.10 , but the problem is still here in every flavor of ubuntu.

nSTER (navst3r) wrote :
nSTER (navst3r) wrote :
nSTER (navst3r) wrote :
Adam Niedling (krychek) wrote :

I think USB sound cards always should be plugged in directly in the computer especially if it's a USB speaker. It gets more electricity from the machine if directly connected. Most USB hubs are bad quality too and best if you don't use them at all especially with complicated hardware.

Daniel T Chen (crimsun) on 2008-09-10
Changed in linux-source-2.6.20:
assignee: nobody → ubuntu-kernel-team
status: Incomplete → Confirmed

It unfortunately looks like this bug didn't get resolved in previous releases. Can anyone confirm this is still an issue with the more recent Intrepid Ibex 8.10 release? I've opened a "linux" kernel task so this remains open against the actively developed kernel.

Additionally, the 18 month support period for Feisty Fawn 7.04 has reached it's end of life - http://www.ubuntu.com/news/ubuntu-7.04-end-of-life . As a result we are closing the linux-source-2.6.20 task. This also does not qualify for a Stable Release Update against 2.6.15 - http://wiki.ubuntu.com/StableReleaseUpdates . Thanks.

Changed in linux:
status: New → Incomplete
Changed in linux-source-2.6.20:
status: Confirmed → Won't Fix
Changed in linux-source-2.6.15:
status: Confirmed → Won't Fix

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.

Jim Lieb (lieb) wrote :

With no response from reporters, this bug is closed.

Changed in linux (Ubuntu):
status: Incomplete → Won't Fix
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