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#1 2022-04-17 00:10:34
- nielszweistein
- Member
- Registered: 2022-04-17
- Posts: 3
ALSA snd_usb_audio : clock source 41 is not valid
ALSA snd_usb_audio : clock source 41 is not valid (Behringer UMC204HD)
Description:
i am trying to make my behringer UMC204HD audio USB interface work with GNULinux
(fresh install on many distro the same issue)
-clock source 41 is not valid, cannot use
-audio "stuttering" every x seconds (depending samplerate/buffersize)
-i can fix audio with implicit_fb=1 to snd_usb_audio
sudo modprobe -r snd_usb_audio
sudo modprobe snd_usb_audio implicit_fb=1
$ alsa-info.sh
!!ALSA Version
!!------------
Driver version: k5.17.2-arch3-1
Library version: 1.2.6.1
Utilities version: 1.2.6
# dmesg
[ 19.326325] usb 1-6: clock source 41 is not valid, cannot use
[ 19.328985] usb 1-6: clock source 41 is not valid, cannot use
[ 344.142598] usb 1-6: USB disconnect, device number 11
[ 347.129776] usb 1-6: new high-speed USB device number 12 using xhci_hcd
[ 347.272359] usb 1-6: New USB device found, idVendor=1397, idProduct=0508, bcdDevice= 1.35
[ 347.272373] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 347.272378] usb 1-6: Product: UMC204HD 192k
[ 347.272382] usb 1-6: Manufacturer: BEHRINGER
[ 347.372435] usb 1-6: clock source 41 is not valid, cannot use
[ 347.379348] usb 1-6: clock source 41 is not valid, cannot use
[ 347.382452] usb 1-6: clock source 41 is not valid, cannot use
[ 347.385006] usb 1-6: clock source 41 is not valid, cannot use
[ 347.387399] usb 1-6: clock source 41 is not valid, cannot use$ uname -a
Linux nielscomputer 5.17.2-arch3-1 #1 SMP PREEMPT Sun, 10 Apr 2022 11:18:32 +0000 x86_64 GNU/Linux$ lsusb
Bus 001 Device 013: ID 1397:0508 BEHRINGER International GmbH UMC204HD 192k$ lsusb -v -d 1397:0508
Bus 001 Device 011: ID 1397:0508 BEHRINGER International GmbH UMC204HD 192k
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x1397 BEHRINGER International GmbH
idProduct 0x0508
bcdDevice 1.35
iManufacturer 1 BEHRINGER
iProduct 2 UMC204HD 192k
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0181
bNumInterfaces 6
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 8
wTotalLength 0x007f
bmControls 0x01
Latency control Control (read-only)
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 41
bmAttributes 3 Internal programmable clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 10
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 11 (CLOCK_SELECTOR)
bClockID 40
bNrInPins 1
baCSourceID(0) 41
bmControls 0x03
Clock Selector Control (read/write)
iClockSelector 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 40
bNrChannels 4
bmChannelConfig 0x00000000
iChannelNames 192
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 10
bSourceID 2
bmaControls(0) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls(1) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls(2) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls(3) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls(4) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 20
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 10
bCSourceID 40
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bCSourceID 40
bNrChannels 2
bmChannelConfig 0x00000000
iChannelNames 128
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 11
bSourceID 1
bmaControls(0) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls(1) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
bmaControls(2) 0x0000000f
Mute Control (read/write)
Volume Control (read/write)
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 22
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
bCSourceID 40
bmControls 0x0000
iTerminal 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0006 1x 6 bytes
bInterval 8
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 2
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 4
bmChannelConfig 0x00000000
iChannelNames 192
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x08 EP 8 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0190 1x 400 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0x0008
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 17
Transfer Type Isochronous
Synch Type None
Usage Type Feedback
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 0
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x00
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 2
bmChannelConfig 0x00000000
iChannelNames 128
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x0190 1x 400 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 0x0008
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 0x0009
bInCollection 1
baInterfaceNr(0) 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 3 MIDI Streaming
bInterfaceProtocol 0
iInterface 0
MIDIStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 0x0041
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 21
iJack 64
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 31
bNrInputPins 1
baSourceID( 0) 21
BaSourcePin( 0) 1
iJack 64
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 1
bNrInputPins 1
baSourceID( 0) 11
BaSourcePin( 0) 1
iJack 32
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 11
iJack 32
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 1
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 21
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 5
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 16
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 8Last edited by nielszweistein (2022-04-19 17:08:32)
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#2 2022-04-18 23:51:22
- Neven
- Member
- Registered: 2014-05-02
- Posts: 75
Re: ALSA snd_usb_audio : clock source 41 is not valid
Have you eliminated the USB cable/connectors? I.e., try connecting to the sound card with a freshly bought USB cable.
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#3 2022-04-19 06:39:49
- V1del
- Forum Moderator
- Registered: 2012-10-16
- Posts: 21,738
Re: ALSA snd_usb_audio : clock source 41 is not valid
And please wrap these outputs in code tags
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#4 2022-04-19 17:13:35
- nielszweistein
- Member
- Registered: 2022-04-17
- Posts: 3
Re: ALSA snd_usb_audio : clock source 41 is not valid
@V1del : sorry for that
@Neven : yes, i have test with other USB cable, other computer, old kernel, latest lts from kernel.org, the same error
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#5 2022-04-20 16:51:31
- Lone_Wolf
- Forum Moderator
- From: Netherlands, Europe
- Registered: 2005-10-04
- Posts: 11,922
Re: ALSA snd_usb_audio : clock source 41 is not valid
nielszweistein wrote:
-i can fix audio with implicit_fb=1 to snd_usb_audio
sudo modprobe -r snd_usb_audio
sudo modprobe snd_usb_audio implicit_fb=1
If that parameter solves the issue, you could apply it at boot by creating a file in /etc/modprobe.d/ .
see https://wiki.archlinux.org/title/Kernel … odprobe.d/
Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.
(A works at time B) && (time C > time B ) ≠ (A works at time C)
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#6 2022-05-23 11:56:42
- tkna
- Member
- From: Tokyo, Japan
- Registered: 2022-05-23
- Posts: 4
Re: ALSA snd_usb_audio : clock source 41 is not valid
I am also having the same problem. After executing the following command, I ran
$ speaker-testand now no sound is heard.
# cat <<"EOT"> /etc/modprobe.d/umc204hd.conf
options snd_usb_audio implicit_fb=1
EOT
# rebootI assume it is the same cause as what is being tracked below.
https://bugzilla.kernel.org/show_bug.cgi?id=215934
Last edited by tkna (2022-05-23 12:03:32)
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#7 2022-07-22 19:14:05
- tkna
- Member
- From: Tokyo, Japan
- Registered: 2022-05-23
- Posts: 4
Re: ALSA snd_usb_audio : clock source 41 is not valid
It seems that Mr. Iwai's patch has been incorporated into the kernel.
With modprobe not configured, it now works.
There is no "stuttering" or "silent state".
Kernel release: 5.18.12-arch1-1
BEHRINGER UMC204HD 192k at usb-0000:00:14.0-5.3, high speed
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