Hi
I got a McIntosh D100 DAC, it works but sometimes the sounds stops and
starts a few milliseconds (small pauses). I got the problem when playing
music in Clementine (FLAC files) and youtube videos. I can play many
songs fine without any problems so its very periodical. It might happen
only 1-2 times in a day.
I had a Electrocompaniet EC-2 DAC for a while and I think it had some of
the same issues, but I think it used the same driver also.
Kernel is 3.12.6 custom compiled
Distribution is opensuse 13.1, pulseaudio is removed from the system.
Here is the dmesg output, I think the rate errors are related.
[837561.337034] usb 2-4: new high-speed USB device number 12 using ehci-pci
[837561.452539] usb 2-4: New USB device found, idVendor=2349, idProduct=03e8
[837561.452544] usb 2-4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[837561.452547] usb 2-4: Product: McIntosh Labs USB Audio
[837561.452550] usb 2-4: Manufacturer: McIntosh Laboratory
[837561.452553] usb 2-4: SerialNumber: SN-MLI-0123456789
[837561.455410] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 192000
[837561.457409] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 192000
[837561.459412] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 192000
[837561.462092] input: McIntosh Laboratory McIntosh Labs USB Audio as
/devices/pci0000:00/0000:00:1d.7/usb2/2-4/2-4:1.2/input/input23
[837561.462293] hid-generic 0003:2349:03E8.000C: input,hidraw0: USB HID
v11.01 Device [McIntosh Laboratory McIntosh Labs USB Audio] on
usb-0000:00:1d.7-4/input2
[837582.400724] ALSA sound/usb/clock.c:391 current rate 192000 is
different from the runtime rate 44100
[839376.454419] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[839376.582298] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[839384.684670] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[839384.912674] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[839512.330019] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[839524.595086] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[839879.665001] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[839928.433977] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[839934.387555] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[839934.626927] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[839941.765282] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[839957.735521] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[840314.811470] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[840314.916972] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 44100
[840322.179075] ALSA sound/usb/clock.c:391 current rate 44100 is
different from the runtime rate 32000
[840348.413377] usbcore: deregistering interface driver snd-usb-audio
[840356.601579] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 192000
[840356.603324] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 192000
[840356.605201] ALSA sound/usb/clock.c:391 current rate 32000 is
different from the runtime rate 192000
[840356.606309] usbcore: registered new interface driver snd-usb-audio
[840362.560552] ALSA sound/usb/clock.c:391 current rate 192000 is
different from the runtime rate 48000
[841035.860888] cx23885_wakeup: 4 buffers handled (should be 1)
Here is the device info:
lsusb -vvv -s 4
Bus 002 Device 004: ID 2349:03e8
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x2349
idProduct 0x03e8
bcdDevice 10.00
iManufacturer 1 McIntosh Laboratory
iProduct 2 McIntosh Labs USB Audio
iSerial 3 SN-MLI-0123456789
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 283
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 4 High Speed Configuration
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 5 Audio Function-1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 6 McIntosh Labs USB Audio
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 2
wTotalLength 64
bmControl 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 204
bmAttributes 0x03 Internal programmable Clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 1
iClockSource 7 Master Clock
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 204
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
bmControls 0x0000
iChannelNames 0
iTerminal 8 USB Stream Input
AudioControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 2
bSourceID 1
bmaControls( 0) 0x00000003
Mute Control (read/write)
bmaControls( 1) 0x00000000
bmaControls( 2) 0x00000000
iFeature 9 Main Feature Controls
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0602 Digital Audio Interface
bAssocTerminal 0
bSourceID 2
bCSourceID 204
bmControls 0x0000
iTerminal 10 I2S Output
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 2
bBitResolution 16
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c8 1x 200 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 3
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c8 1x 200 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000003
Front Left (FL)
Front Right (FR)
iChannelNames 0
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x00c8 1x 200 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 11.01
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 41
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 2
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
--
Jonas
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