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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Received on Tue May 24 00:15:03 2011
This archive was generated by hypermail 2.1.8 : Tue May 24 2011 - 00:15:03 EEST