Public bug reported:
USB DAC stops playing sound after a second.
I had problem with kernel 4.15.
So, I tried upgrading to 4.19 but still issue persists.
I think, we might need to add it to sound/usb/quirks.c
I see following in dmesg
[ 5937.978117] usb 1-1.4.2: USB disconnect, device number 16
[ 5955.721597] usb 1-1.4.1: new full-speed USB device number 17 using xhci_hcd
[ 5956.302910] usb 1-1.4.1: New USB device found, idVendor=2912,
idProduct=120b, bcdDevice= 1.0c
[ 5956.302917] usb 1-1.4.1: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 5956.302921] usb 1-1.4.1: Product: Audioengine D3
[ 5956.302926] usb 1-1.4.1: Manufacturer: Audioengine
[ 5956.302929] usb 1-1.4.1: SerialNumber: Audioengine
[ 5956.320621] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
[ 5956.920844] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
[ 5956.938929] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
And lsusb -v has following entry for the device.
Bus 001 Device 017: ID 2912:120b
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x2912
idProduct 0x120b
bcdDevice 1.0c
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 131
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 200mA
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 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 43
bInCollection 1
baInterfaceNr( 0) 1
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 7
bSourceID 5
bControlSize 2
bmaControls( 0) 0x01
bmaControls( 0) 0x00
Mute Control
bmaControls( 1) 0x02
bmaControls( 1) 0x00
Volume Control
bmaControls( 2) 0x02
bmaControls( 2) 0x00
Volume Control
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 8
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 7
iTerminal 0
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 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 3
bBitResolution 24
bSamFreqType 4 Discrete
tSamFreq[ 0] 44100
tSamFreq[ 1] 48000
tSamFreq[ 2] 88200
tSamFreq[ 3] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x024c 1x 588 bytes
bInterval 1
bRefresh 0
bSynchAddress 131
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0003 1x 3 bytes
bInterval 1
bRefresh 5
bSynchAddress 0
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 4.19.15-041915-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: wolf 3380 F.... pulseaudio
/dev/snd/pcmC1D0p: wolf 3380 F...m pulseaudio
/dev/snd/controlC0: wolf 3380 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 16 14:43:03 2019
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-03-07 (315 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audioengine D3 - Audioengine D3
Symptom_PulseAudioLog:
Jan 16 12:18:52 usmanz dbus-daemon[1469]: [system] Activating via systemd:
service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service'
requested by ':1.32' (uid=121 pid=2077 comm="/usr/bin/pulseaudio --daemonize=no
")
Jan 16 12:18:52 usmanz pulseaudio[2077]: W: [pulseaudio] sink.c: Default and
alternate sample rates are the same.
Symptom_Type: Sound works for a while, then breaks
Title: [USB-Audio - Audioengine D3, playback] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/04/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.6.3
dmi.board.name: 0F6P3V
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.6.3:bd11/04/2018:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9370
dmi.product.sku: 07E6
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic wayland-session
** Summary changed:
- [USB-Audio - Audioengine D3, playback] fails after a while (a secpmd)
+ [USB-Audio - Audioengine D3, playback] fails after a while (a second)
** Description changed:
+ USB DAC stops playing sound after a second.
I see following in dmesg
-
[ 5937.978117] usb 1-1.4.2: USB disconnect, device number 16
[ 5955.721597] usb 1-1.4.1: new full-speed USB device number 17 using xhci_hcd
[ 5956.302910] usb 1-1.4.1: New USB device found, idVendor=2912,
idProduct=120b, bcdDevice= 1.0c
[ 5956.302917] usb 1-1.4.1: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 5956.302921] usb 1-1.4.1: Product: Audioengine D3
[ 5956.302926] usb 1-1.4.1: Manufacturer: Audioengine
[ 5956.302929] usb 1-1.4.1: SerialNumber: Audioengine
[ 5956.320621] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
[ 5956.920844] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
[ 5956.938929] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
And lsusb -v has following entry for the device.
- Bus 001 Device 017: ID 2912:120b
+ Bus 001 Device 017: ID 2912:120b
Couldn't open device, some information will be missing
Device Descriptor:
- bLength 18
- bDescriptorType 1
- bcdUSB 1.00
- bDeviceClass 0 (Defined at Interface level)
- bDeviceSubClass 0
- bDeviceProtocol 0
- bMaxPacketSize0 8
- idVendor 0x2912
- idProduct 0x120b
- bcdDevice 1.0c
- iManufacturer 1
- iProduct 2
- iSerial 3
- bNumConfigurations 1
- Configuration Descriptor:
- bLength 9
- bDescriptorType 2
- wTotalLength 131
- bNumInterfaces 2
- bConfigurationValue 1
- iConfiguration 0
- bmAttributes 0x80
- (Bus Powered)
- MaxPower 200mA
- 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 9
- bDescriptorType 36
- bDescriptorSubtype 1 (HEADER)
- bcdADC 1.00
- wTotalLength 43
- bInCollection 1
- baInterfaceNr( 0) 1
- AudioControl Interface Descriptor:
- bLength 12
- bDescriptorType 36
- bDescriptorSubtype 2 (INPUT_TERMINAL)
- bTerminalID 5
- wTerminalType 0x0101 USB Streaming
- bAssocTerminal 0
- bNrChannels 2
- wChannelConfig 0x0003
- Left Front (L)
- Right Front (R)
- iChannelNames 0
- iTerminal 0
- AudioControl Interface Descriptor:
- bLength 13
- bDescriptorType 36
- bDescriptorSubtype 6 (FEATURE_UNIT)
- bUnitID 7
- bSourceID 5
- bControlSize 2
- bmaControls( 0) 0x01
- bmaControls( 0) 0x00
- Mute Control
- bmaControls( 1) 0x02
- bmaControls( 1) 0x00
- Volume Control
- bmaControls( 2) 0x02
- bmaControls( 2) 0x00
- Volume Control
- iFeature 0
- AudioControl Interface Descriptor:
- bLength 9
- bDescriptorType 36
- bDescriptorSubtype 3 (OUTPUT_TERMINAL)
- bTerminalID 8
- wTerminalType 0x0301 Speaker
- bAssocTerminal 0
- bSourceID 7
- iTerminal 0
- 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 2
- bInterfaceClass 1 Audio
- bInterfaceSubClass 2 Streaming
- bInterfaceProtocol 0
- iInterface 0
- AudioStreaming Interface Descriptor:
- bLength 7
- bDescriptorType 36
- bDescriptorSubtype 1 (AS_GENERAL)
- bTerminalLink 5
- bDelay 1 frames
- wFormatTag 1 PCM
- AudioStreaming Interface Descriptor:
- bLength 20
- bDescriptorType 36
- bDescriptorSubtype 2 (FORMAT_TYPE)
- bFormatType 1 (FORMAT_TYPE_I)
- bNrChannels 2
- bSubframeSize 3
- bBitResolution 24
- bSamFreqType 4 Discrete
- tSamFreq[ 0] 44100
- tSamFreq[ 1] 48000
- tSamFreq[ 2] 88200
- tSamFreq[ 3] 96000
- Endpoint Descriptor:
- bLength 9
- bDescriptorType 5
- bEndpointAddress 0x01 EP 1 OUT
- bmAttributes 5
- Transfer Type Isochronous
- Synch Type Asynchronous
- Usage Type Data
- wMaxPacketSize 0x024c 1x 588 bytes
- bInterval 1
- bRefresh 0
- bSynchAddress 131
- AudioControl Endpoint Descriptor:
- bLength 7
- bDescriptorType 37
- bDescriptorSubtype 1 (EP_GENERAL)
- bmAttributes 0x01
- Sampling Frequency
- bLockDelayUnits 0 Undefined
- wLockDelay 0 Undefined
- Endpoint Descriptor:
- bLength 9
- bDescriptorType 5
- bEndpointAddress 0x83 EP 3 IN
- bmAttributes 1
- Transfer Type Isochronous
- Synch Type None
- Usage Type Data
- wMaxPacketSize 0x0003 1x 3 bytes
- bInterval 1
- bRefresh 5
- bSynchAddress 0
+ bLength 18
+ bDescriptorType 1
+ bcdUSB 1.00
+ bDeviceClass 0 (Defined at Interface level)
+ bDeviceSubClass 0
+ bDeviceProtocol 0
+ bMaxPacketSize0 8
+ idVendor 0x2912
+ idProduct 0x120b
+ bcdDevice 1.0c
+ iManufacturer 1
+ iProduct 2
+ iSerial 3
+ bNumConfigurations 1
+ Configuration Descriptor:
+ bLength 9
+ bDescriptorType 2
+ wTotalLength 131
+ bNumInterfaces 2
+ bConfigurationValue 1
+ iConfiguration 0
+ bmAttributes 0x80
+ (Bus Powered)
+ MaxPower 200mA
+ 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 9
+ bDescriptorType 36
+ bDescriptorSubtype 1 (HEADER)
+ bcdADC 1.00
+ wTotalLength 43
+ bInCollection 1
+ baInterfaceNr( 0) 1
+ AudioControl Interface Descriptor:
+ bLength 12
+ bDescriptorType 36
+ bDescriptorSubtype 2 (INPUT_TERMINAL)
+ bTerminalID 5
+ wTerminalType 0x0101 USB Streaming
+ bAssocTerminal 0
+ bNrChannels 2
+ wChannelConfig 0x0003
+ Left Front (L)
+ Right Front (R)
+ iChannelNames 0
+ iTerminal 0
+ AudioControl Interface Descriptor:
+ bLength 13
+ bDescriptorType 36
+ bDescriptorSubtype 6 (FEATURE_UNIT)
+ bUnitID 7
+ bSourceID 5
+ bControlSize 2
+ bmaControls( 0) 0x01
+ bmaControls( 0) 0x00
+ Mute Control
+ bmaControls( 1) 0x02
+ bmaControls( 1) 0x00
+ Volume Control
+ bmaControls( 2) 0x02
+ bmaControls( 2) 0x00
+ Volume Control
+ iFeature 0
+ AudioControl Interface Descriptor:
+ bLength 9
+ bDescriptorType 36
+ bDescriptorSubtype 3 (OUTPUT_TERMINAL)
+ bTerminalID 8
+ wTerminalType 0x0301 Speaker
+ bAssocTerminal 0
+ bSourceID 7
+ iTerminal 0
+ 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 2
+ bInterfaceClass 1 Audio
+ bInterfaceSubClass 2 Streaming
+ bInterfaceProtocol 0
+ iInterface 0
+ AudioStreaming Interface Descriptor:
+ bLength 7
+ bDescriptorType 36
+ bDescriptorSubtype 1 (AS_GENERAL)
+ bTerminalLink 5
+ bDelay 1 frames
+ wFormatTag 1 PCM
+ AudioStreaming Interface Descriptor:
+ bLength 20
+ bDescriptorType 36
+ bDescriptorSubtype 2 (FORMAT_TYPE)
+ bFormatType 1 (FORMAT_TYPE_I)
+ bNrChannels 2
+ bSubframeSize 3
+ bBitResolution 24
+ bSamFreqType 4 Discrete
+ tSamFreq[ 0] 44100
+ tSamFreq[ 1] 48000
+ tSamFreq[ 2] 88200
+ tSamFreq[ 3] 96000
+ Endpoint Descriptor:
+ bLength 9
+ bDescriptorType 5
+ bEndpointAddress 0x01 EP 1 OUT
+ bmAttributes 5
+ Transfer Type Isochronous
+ Synch Type Asynchronous
+ Usage Type Data
+ wMaxPacketSize 0x024c 1x 588 bytes
+ bInterval 1
+ bRefresh 0
+ bSynchAddress 131
+ AudioControl Endpoint Descriptor:
+ bLength 7
+ bDescriptorType 37
+ bDescriptorSubtype 1 (EP_GENERAL)
+ bmAttributes 0x01
+ Sampling Frequency
+ bLockDelayUnits 0 Undefined
+ wLockDelay 0 Undefined
+ Endpoint Descriptor:
+ bLength 9
+ bDescriptorType 5
+ bEndpointAddress 0x83 EP 3 IN
+ bmAttributes 1
+ Transfer Type Isochronous
+ Synch Type None
+ Usage Type Data
+ wMaxPacketSize 0x0003 1x 3 bytes
+ bInterval 1
+ bRefresh 5
+ bSynchAddress 0
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 4.19.15-041915-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC1: wolf 3380 F.... pulseaudio
- /dev/snd/pcmC1D0p: wolf 3380 F...m pulseaudio
- /dev/snd/controlC0: wolf 3380 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC1: wolf 3380 F.... pulseaudio
+ /dev/snd/pcmC1D0p: wolf 3380 F...m pulseaudio
+ /dev/snd/controlC0: wolf 3380 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 16 14:43:03 2019
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-03-07 (315 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audioengine D3 - Audioengine D3
Symptom_PulseAudioLog:
- Jan 16 12:18:52 usmanz dbus-daemon[1469]: [system] Activating via systemd:
service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service'
requested by ':1.32' (uid=121 pid=2077 comm="/usr/bin/pulseaudio --daemonize=no
")
- Jan 16 12:18:52 usmanz pulseaudio[2077]: W: [pulseaudio] sink.c: Default and
alternate sample rates are the same.
+ Jan 16 12:18:52 usmanz dbus-daemon[1469]: [system] Activating via systemd:
service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service'
requested by ':1.32' (uid=121 pid=2077 comm="/usr/bin/pulseaudio --daemonize=no
")
+ Jan 16 12:18:52 usmanz pulseaudio[2077]: W: [pulseaudio] sink.c: Default and
alternate sample rates are the same.
Symptom_Type: Sound works for a while, then breaks
Title: [USB-Audio - Audioengine D3, playback] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/04/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.6.3
dmi.board.name: 0F6P3V
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.6.3:bd11/04/2018:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9370
dmi.product.sku: 07E6
dmi.sys.vendor: Dell Inc.
** Description changed:
USB DAC stops playing sound after a second.
+ I had problem with kernel 4.15.
+ So, I tried upgrading to 4.19 but still issue persists.
+ I think, we might need to add it to sound/usb/quirks.c
+
I see following in dmesg
[ 5937.978117] usb 1-1.4.2: USB disconnect, device number 16
[ 5955.721597] usb 1-1.4.1: new full-speed USB device number 17 using xhci_hcd
[ 5956.302910] usb 1-1.4.1: New USB device found, idVendor=2912,
idProduct=120b, bcdDevice= 1.0c
[ 5956.302917] usb 1-1.4.1: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 5956.302921] usb 1-1.4.1: Product: Audioengine D3
[ 5956.302926] usb 1-1.4.1: Manufacturer: Audioengine
[ 5956.302929] usb 1-1.4.1: SerialNumber: Audioengine
[ 5956.320621] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
[ 5956.920844] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
[ 5956.938929] usb 1-1.4.1: 1:1: cannot get freq at ep 0x1
And lsusb -v has following entry for the device.
Bus 001 Device 017: ID 2912:120b
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x2912
idProduct 0x120b
bcdDevice 1.0c
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 131
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 200mA
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 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 43
bInCollection 1
baInterfaceNr( 0) 1
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 5
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 7
bSourceID 5
bControlSize 2
bmaControls( 0) 0x01
bmaControls( 0) 0x00
Mute Control
bmaControls( 1) 0x02
bmaControls( 1) 0x00
Volume Control
bmaControls( 2) 0x02
bmaControls( 2) 0x00
Volume Control
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 8
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 7
iTerminal 0
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 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 3
bBitResolution 24
bSamFreqType 4 Discrete
tSamFreq[ 0] 44100
tSamFreq[ 1] 48000
tSamFreq[ 2] 88200
tSamFreq[ 3] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x024c 1x 588 bytes
bInterval 1
bRefresh 0
bSynchAddress 131
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0003 1x 3 bytes
bInterval 1
bRefresh 5
bSynchAddress 0
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 4.19.15-041915-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: wolf 3380 F.... pulseaudio
/dev/snd/pcmC1D0p: wolf 3380 F...m pulseaudio
/dev/snd/controlC0: wolf 3380 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 16 14:43:03 2019
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-03-07 (315 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Audioengine D3 - Audioengine D3
Symptom_PulseAudioLog:
Jan 16 12:18:52 usmanz dbus-daemon[1469]: [system] Activating via systemd:
service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service'
requested by ':1.32' (uid=121 pid=2077 comm="/usr/bin/pulseaudio --daemonize=no
")
Jan 16 12:18:52 usmanz pulseaudio[2077]: W: [pulseaudio] sink.c: Default and
alternate sample rates are the same.
Symptom_Type: Sound works for a while, then breaks
Title: [USB-Audio - Audioengine D3, playback] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/04/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.6.3
dmi.board.name: 0F6P3V
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.6.3:bd11/04/2018:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9370
dmi.product.sku: 07E6
dmi.sys.vendor: Dell Inc.
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https://bugs.launchpad.net/bugs/1811999
Title:
[USB-Audio - Audioengine D3, playback] fails after a while (a second)
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