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    • [Jack] Xruns & saturation numérique

    Envoyé par 1010 le Tue 06 Feb 2018 21:53
    Bonjour tout le monde,

    J'ai un souci avec une carte son RME ADI-2 Pro qui fonctionne très bien sur un mini-PC (en USB 3.0), mais depuis que je l'ai connectée à une tour (USB 2) j'ai des xruns avec coupure de son (+/-100 par heure) et presque autant de saturations numérique (extrêmement désagréable à entendre) de 44.1 à 192KHz quelque soit le réglage que je fait dans jack je ne parviens pas et les éliminés.
    En décochant "temps réel" il y a un peu moins de xruns et j'ai toujours les saturations.
    Et j'ai le même résultat sous Archlinux kernel RT ou Ubuntu studio.
    Peut-être un problème d'USB ? Mais je ne sais pas quoi chercher.

    Un grand merci pour votre coup de main 😊







    Au cas ou:
    Copy to clipboard
    ~$ lsusb -v

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0001 1.1 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0002  1x 2 bytes
        bInterval             255

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0002 2.0 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0004  1x 4 bytes
        bInterval              12

Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0001 1.1 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0002  1x 2 bytes
        bInterval             255

Bus 005 Device 002: ID 0763:1050 Midiman 
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0763 Midiman
  idProduct          0x1050 
  bcdDevice            1.04
  iManufacturer           1 
  iProduct                2 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          129
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              400mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0 
      iInterface              2 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength            9
        bInCollection           1
        baInterfaceNr( 0)       1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         1 Audio
      bInterfaceSubClass      3 MIDI Streaming
      bInterfaceProtocol      0 
      iInterface              2 
      MIDIStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength           93
      MIDIStreaming Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (MIDI_OUT_JACK)
        bJackType               1 Embedded
        bJackID                 3
        bNrInputPins            1
        baSourceID( 0)          2
        BaSourcePin( 0)         1
        iJack                   3 
      MIDIStreaming Interface Descriptor:
        bLength                 6
        bDescriptorType        36
        bDescriptorSubtype      2 (MIDI_IN_JACK)
        bJackType               2 External
        bJackID                 2
        iJack                   3 
      MIDIStreaming Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (MIDI_OUT_JACK)
        bJackType               1 Embedded
        bJackID                 7
        bNrInputPins            1
        baSourceID( 0)          6
        BaSourcePin( 0)         1
        iJack                   4 
      MIDIStreaming Interface Descriptor:
        bLength                 6
        bDescriptorType        36
        bDescriptorSubtype      2 (MIDI_IN_JACK)
        bJackType               2 External
        bJackID                 6
        iJack                   4 
      MIDIStreaming Interface Descriptor:
        bLength                 6
        bDescriptorType        36
        bDescriptorSubtype      2 (MIDI_IN_JACK)
        bJackType               1 Embedded
        bJackID                 1
        iJack                   5 
      MIDIStreaming Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (MIDI_OUT_JACK)
        bJackType               2 External
        bJackID                 4
        bNrInputPins            1
        baSourceID( 0)          1
        BaSourcePin( 0)         1
        iJack                   5 
      MIDIStreaming Interface Descriptor:
        bLength                 6
        bDescriptorType        36
        bDescriptorSubtype      2 (MIDI_IN_JACK)
        bJackType               1 Embedded
        bJackID                 5
        iJack                   6 
      MIDIStreaming Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (MIDI_OUT_JACK)
        bJackType               2 External
        bJackID                 8
        bNrInputPins            1
        baSourceID( 0)          5
        BaSourcePin( 0)         1
        iJack                   6 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
        MIDIStreaming Endpoint Descriptor:
          bLength                 6
          bDescriptorType        37
          bDescriptorSubtype      1 (GENERAL)
          bNumEmbMIDIJack         2
          baAssocJackID( 0)       1
          baAssocJackID( 1)       5
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x86  EP 6 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
        MIDIStreaming Endpoint Descriptor:
          bLength                 6
          bDescriptorType        37
          bDescriptorSubtype      1 (GENERAL)
          bNumEmbMIDIJack         2
          baAssocJackID( 0)       3
          baAssocJackID( 1)       7

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0001 1.1 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0002  1x 2 bytes
        bInterval             255

Bus 001 Device 005: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.01
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x148f Ralink Technology, Corp.
  idProduct          0x7601 MT7601U Wireless Adapter
  bcdDevice            0.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 3 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           74
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              160mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           8
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x08  EP 8 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x06  EP 6 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x07  EP 7 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x09  EP 9 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0

Bus 001 Device 006: ID 2a39:3fd2  
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           0x2a39 
  idProduct          0x3fd2 
  bcdDevice            0.01
  iManufacturer           1 
  iProduct                2 
  iSerial                 3 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          248
    bNumInterfaces          4
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower              100mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         4
      bFunctionClass          1 Audio
      bFunctionSubClass       0 
      bFunctionProtocol      32 
      iFunction               0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      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           85
        bmControl            0x00
      AudioControl Interface Descriptor:
        bLength                 8
        bDescriptorType        36
        bDescriptorSubtype     10 (CLOCK_SOURCE)
        bClockID                1
        bmAttributes         0x03 Internal programmable Clock 
        bmControls           0x03
          Clock Frequency Control (read/write)
        bAssocTerminal          0
        iClockSource            0 
      AudioControl Interface Descriptor:
        bLength                17
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             3
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bCSourceID              1
        bNrChannels             2
        bmChannelConfig   0x00000000
        bmControls    0x0000
        iChannelNames           0 
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                17
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             5
        wTerminalType      0x0201 Microphone
        bAssocTerminal          0
        bCSourceID              1
        bNrChannels             2
        bmChannelConfig   0x00000000
        bmControls    0x0000
        iChannelNames           0 
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             4
        wTerminalType      0x0301 Speaker
        bAssocTerminal          0
        bSourceID               2
        bCSourceID              1
        bmControls         0x0000
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             6
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               5
        bCSourceID              1
        bmControls         0x0000
        iTerminal               0 
    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           3
        bmControls           0x00
        bFormatType             1
        bmFormats         0x00000001
          PCM
        bNrChannels             2
        bmChannelConfig   0x00000000
        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     0x02  EP 2 OUT
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0320  1x 800 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     0x82  EP 2 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           6
        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     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0320  1x 800 bytes
        bInterval               1
        AudioControl Endpoint Descriptor:
          bLength                 8
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x00
          bmControls           0x00
          bLockDelayUnits         0 Undefined
          wLockDelay              0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x88  EP 8 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x09  EP 9 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               1

Bus 001 Device 002: ID 0409:005a NEC Corp. HighSpeed Hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         1 Single TT
  bMaxPacketSize0        64
  idVendor           0x0409 NEC Corp.
  idProduct          0x005a HighSpeed Hub
  bcdDevice            1.00
  iManufacturer           0 
  iProduct                0 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    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      0 Full speed (or root) hub
      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

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0002 2.0 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0004  1x 4 bytes
        bInterval              12

Bus 004 Device 002: ID 046d:c049 Logitech, Inc. G5 Laser Mouse
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x046d Logitech, Inc.
  idProduct          0xc049 G5 Laser Mouse
  bcdDevice           52.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           59
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          4 
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower               98mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      94
         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     0x000a  1x 10 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 No Subclass
      bInterfaceProtocol      0 None
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      54
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0014  1x 20 bytes
        bInterval              10

Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0001 1.1 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0002  1x 2 bytes
        bInterval             255

Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0001 1.1 root hub
  bcdDevice            4.13
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      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     0x0002  1x 2 bytes
        bInterval             255




~$ lsusb -t
/:  Bus 07.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/2p, 12M
/:  Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/3p, 12M
/:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/3p, 12M
    |__ Port 2: Dev 2, If 0, Class=Audio, Driver=snd-usb-audio, 12M
    |__ Port 2: Dev 2, If 1, Class=Audio, Driver=snd-usb-audio, 12M
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/3p, 12M
    |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/3p, 12M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/6p, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/6p, 480M
    |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/2p, 480M
        |__ Port 1: Dev 6, If 0, Class=Audio, Driver=snd-usb-audio, 480M
        |__ Port 1: Dev 6, If 1, Class=Audio, Driver=snd-usb-audio, 480M
        |__ Port 1: Dev 6, If 2, Class=Audio, Driver=snd-usb-audio, 480M
        |__ Port 1: Dev 6, If 3, Class=Vendor Specific Class, Driver=, 480M
        |__ Port 2: Dev 5, If 0, Class=Vendor Specific Class, Driver=mt7601u, 480M



    Edit: J'ai fait un dual boot pour test sous W7 et là aucun problème (asio bit perfect).
    Lectures: 6032
    Envoyé par olinuxx le Wed 07 Feb 2018 13:06 France
    Étrange car si on en lit https://www.rme-audio.de/en/products/adi_2-pro.php Image , elle est censée fonctionner en USB 2.

    Elle est bien alimentée par un transfo externe, et pas "juste" par l'USB ?

    As-tu essayé de changer de port USB sur ta machine (on voit que tu as des ports USB 1.1 et d'autres 2.0).

    Tu peux également essayé de changer le câble USB. Un câble défectueux ou, juste parfois trop long, peut engendrer des désynchronisations audio.
    Envoyé par 1010 le Wed 07 Feb 2018 14:57
    Oui elle est alimentée par un transfo externe.
    J'ai fait 4 des 6 ports «fixes» de la carte mère ainsi que les 2 ports supplémentaires (sortie slot pcie).
    J'ai essayé le câble d'origine ainsi qu'un câble DIY de seulement 30cm (cuivre OFC plaqué argent avec blindage + ferrite). Pas de changements.
    Étant donné que sur le même ordinateur ça fonctionne sous w7 je pense plus à un problème logiciel que physique.
    Envoyé par 1010 le Sun 04 Mar 2018 12:28
    Problème toujours pas résolu, je suis dans les choux. Quelqu'un a une idée ou une piste à explorer ?
    Envoyé par allany le Sun 04 Mar 2018 12:50
    As-tu accès à quelques réglages par :
    Copy to clipboard
    alsamixer (sélection carte -> F6)
    et, si oui, n'y a-t-il pas un switch ou un réglage qui fiche le bintz ?
    Envoyé par 1010 le Sun 04 Mar 2018 13:04
    Non, je n'ai rien via alsamixer
    Copy to clipboard
    alsamixer -> F6 -> 0 ADI2 Pro -> Ce périphérique n'a pas de commandes

    Envoyé par allany le Sun 04 Mar 2018 20:06
    Poste un :
    Copy to clipboard
    aplay -l
    juste pour vérification et aussi un :
    Copy to clipboard
    uname -a
    Dans le setup de la carte, n'y a-t-il pas de paramètres "rusés" concernant le fréquençage ou une synchro d'horloge (timer) ? J'avais eu ce genre de problème avec une carte PCI Echo.

    As-tu essayé sur différents ports USB ?
    Envoyé par 1010 le Mon 05 Mar 2018 14:10
    Copy to clipboard
    ~$ aplay -l
**** Liste des Périphériques Matériels PLAYBACK ****
carte 0: Pro55395251 [ADI-2 Pro (55395251)], périphérique 0: USB Audio [USB Audio]
  Sous-périphériques: 1/1
  Sous-périphérique #0: subdevice #0

    Copy to clipboard
    ~$ uname -a
Linux 4.13.0-36-lowlatency #40-Ubuntu SMP PREEMPT Fri Feb 16 21:12:41 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


    La carte est en: clock source -> Auto. Elle se synchronise parfaitement avec la fréquence de Jack. J’étais en mode non-oversampling, mais aucun changement dans les autres modes. Je ne vois rien dans les réglages qui pourrai modifier/perturber le fréquençage ou la synchro d'horloge.
    Oui j'ai fait tout les ports USB de la carte mère.
    Envoyé par olinuxx le Mon 05 Mar 2018 21:57 France
    Est-ce que l'accès temps-réel pour les applications ( PAM ) est correctement configuré ?
    Le script rtirq est-il correctement installé et paramétré ?
    Envoyé par 1010 le Tue 06 Mar 2018 13:28
    Pour PAM l'accès temps-réel semble ok mais quand je fait "ulimit -l -r" la prio RT est à 95 et pas 90.
    Copy to clipboard
    # /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain>        <type>  <item>  <value>
#
#Where:
#<domain> can be:
#        - a user name
#        - a group name, with @group syntax
#        - the wildcard *, for default entry
#        - the wildcard %, can be also used with %group syntax,
#                 for maxlogin limit
#        - NOTE: group and wildcard limits are not applied to root.
#          To apply a limit to the root user, <domain> must be
#          the literal username root.
#
#<type> can have the two values:
#        - "soft" for enforcing the soft limits
#        - "hard" for enforcing hard limits
#
#<item> can be one of the following:
#        - core - limits the core file size (KB)
#        - data - max data size (KB)
#        - fsize - maximum filesize (KB)
#        - memlock - max locked-in-memory address space (KB)
#        - nofile - max number of open files
#        - rss - max resident set size (KB)
#        - stack - max stack size (KB)
#        - cpu - max CPU time (MIN)
#        - nproc - max number of processes
#        - as - address space limit (KB)
#        - maxlogins - max number of logins for this user
#        - maxsyslogins - max number of logins on the system
#        - priority - the priority to run user process with
#        - locks - max number of file locks the user can hold
#        - sigpending - max number of pending signals
#        - msgqueue - max memory used by POSIX message queues (bytes)
#        - nice - max nice priority allowed to raise to values: [-20, 19]
#        - rtprio - max realtime priority
#        - chroot - change root to directory (Debian-specific)
#
#<domain>      <type>  <item>         <value>
#

#*               soft    core            0
#root            hard    core            100000
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#ftp             -       chroot          /ftp
#@student        -       maxlogins       4

# Support Temps réel pour le groupe audio
@audio  -  rtprio   90
@audio  -  memlock  unlimited

# End of file

    Copy to clipboard
    ~$ ulimit -l -r
max locked memory       (kbytes, -l) unlimited
real-time priority              (-r) 95


    Le script rtirq était présent mais non configuré.
    J'ai ajouté "ehci_hcd et ohci_hcd" car j'ai aussi un boiter midi. Je ne sais pas a quoi correspond i8042 et snd.
    ligne: RTIRQ_NAME_LIST j'ai testé "rtc snd usb i8042" et "rtc ehci_hcd ohci_hcd" mais ça ne change rien.
    Copy to clipboard
    #
# Copyright (C) 2004-2015, rncbc aka Rui Nuno Capela.
#
#   This program is free software; you can redistribute it and/or
#   modify it under the terms of the GNU General Public License
#   as published by the Free Software Foundation; either version 2
#   of the License, or (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program; if not, write to the Free Software Foundation, Inc.,
#   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# /etc/sysconfig/rtirq
# /etc/default/rtirq
#
# Configuration for IRQ thread tunning,
# for realtime-preempt enabled kernels.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 or later.
#

# IRQ thread service names
# (space separated list, from higher to lower priority).
# RTIRQ_NAME_LIST="rtc snd usb i8042" # old
RTIRQ_NAME_LIST="rtc ehci_hcd ohci_hcd"

# Highest priority.
RTIRQ_PRIO_HIGH=99

# Priority decrease step.
RTIRQ_PRIO_DECR=2

# Lowest priority.
RTIRQ_PRIO_LOW=51

# Whether to reset all IRQ threads to SCHED_OTHER.
RTIRQ_RESET_ALL=0

# On kernel configurations that support it,
# which services should be NOT threaded 
# (space separated list).
RTIRQ_NON_THREADED=""

# Process names which will be forced to the
# highest realtime priority range (99-91)
# (space separated list, from highest to lower priority).
# RTIRQ_HIGH_LIST="timer"


    --
    Copy to clipboard
    cat /proc/interrupts
           CPU0       CPU1       CPU2       CPU3       
  0:        121          0          0          0   IO-APIC   2-edge      timer
  1:          0          0        506          0   IO-APIC   1-edge      i8042
  7:          1          0          0          0   IO-APIC   7-edge      parport0
  8:          0          0          1          0   IO-APIC   8-edge      rtc0
  9:          0          0          0          0   IO-APIC   9-fasteoi   acpi
 14:          0          0          0          0   IO-APIC  14-edge      pata_atiixp
 15:          0          0          0          0   IO-APIC  15-edge      pata_atiixp
 16:          0          0      74460          2   IO-APIC  16-fasteoi   ohci_hcd:usb3, ohci_hcd:usb4
 17:          0          0         61    1746980   IO-APIC  17-fasteoi   ehci_hcd:usb1
 18:          0          0          0          0   IO-APIC  18-fasteoi   ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7
 19:          0          0          0          0   IO-APIC  19-fasteoi   ehci_hcd:usb2
 22:          1       8248       6430       3574   IO-APIC  22-fasteoi   ahci[0000:00:11.0]
 24:          0          0          0          0   PCI-MSI 1048576-edge      enp2s0
 25:          0          0       1056      31866   PCI-MSI 524288-edge      nvkm
NMI:          7          7          8         10   Non-maskable interrupts
LOC:     306331     316488     350564     198397   Local timer interrupts
SPU:          0          0          0          0   Spurious interrupts
PMI:          7          7          8         10   Performance monitoring interrupts
IWI:          0          0          0          0   IRQ work interrupts
RTR:          0          0          0          0   APIC ICR read retries
RES:     488781     465763     422489     336457   Rescheduling interrupts
CAL:       6309       4876       5709       6751   Function call interrupts
TLB:       5246       3777       4364       5508   TLB shootdowns
TRM:          0          0          0          0   Thermal event interrupts
THR:          0          0          0          0   Threshold APIC interrupts
DFR:          0          0          0          0   Deferred Error APIC interrupts
MCE:          0          0          0          0   Machine check exceptions
MCP:          3          3          3          3   Machine check polls
ERR:          1
MIS:          0
PIN:          0          0          0          0   Posted-interrupt notification event
NPI:          0          0          0          0   Nested posted-interrupt event
PIW:          0          0          0          0   Posted-interrupt wakeup event

    Copy to clipboard
    lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 005: ID 2a39:3fd2 (CARTE SON) 
Bus 001 Device 006: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter
Bus 001 Device 002: ID 0409:005a NEC Corp. HighSpeed Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 046d:c049 Logitech, Inc. G5 Laser Mouse
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0763:1050 Midiman 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

    Envoyé par olinuxx le Wed 07 Mar 2018 14:10 France
    1010 écrit:
    Pour PAM l'accès temps-réel semble ok mais quand je fait "ulimit -l -r" la prio RT est à 95 et pas 90.

    Copy to clipboard
    # /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain>        <type>  <item>  <value>
#
#Where:
#<domain> can be:
#        - a user name
#        - a group name, with @group syntax
#        - the wildcard *, for default entry
#        - the wildcard %, can be also used with %group syntax,
#                 for maxlogin limit
#        - NOTE: group and wildcard limits are not applied to root.
#          To apply a limit to the root user, <domain> must be
#          the literal username root.
#
#<type> can have the two values:
#        - "soft" for enforcing the soft limits
#        - "hard" for enforcing hard limits
#
#<item> can be one of the following:
#        - core - limits the core file size (KB)
#        - data - max data size (KB)
#        - fsize - maximum filesize (KB)
#        - memlock - max locked-in-memory address space (KB)
#        - nofile - max number of open files
#        - rss - max resident set size (KB)
#        - stack - max stack size (KB)
#        - cpu - max CPU time (MIN)
#        - nproc - max number of processes
#        - as - address space limit (KB)
#        - maxlogins - max number of logins for this user
#        - maxsyslogins - max number of logins on the system
#        - priority - the priority to run user process with
#        - locks - max number of file locks the user can hold
#        - sigpending - max number of pending signals
#        - msgqueue - max memory used by POSIX message queues (bytes)
#        - nice - max nice priority allowed to raise to values: [-20, 19]
#        - rtprio - max realtime priority
#        - chroot - change root to directory (Debian-specific)
#
#<domain>      <type>  <item>         <value>
#

#*               soft    core            0
#root            hard    core            100000
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#ftp             -       chroot          /ftp
#@student        -       maxlogins       4

# Support Temps réel pour le groupe audio
@audio  -  rtprio   90
@audio  -  memlock  unlimited

# End of file

    Copy to clipboard
    ~$ ulimit -l -r
max locked memory       (kbytes, -l) unlimited
real-time priority              (-r) 95


    Probablement parce que tu te mélanges les pieds entre /etc/security/limits.conf et /etc/security/limits.d/audio.conf . Je suppose que si tu regardes dans le 2ème, la prio est positionnée à 90.


    1010 écrit:
    Le script rtirq était présent mais non configuré.
    J'ai ajouté "ehci_hcd et ohci_hcd" car j'ai aussi un boiter midi. Je ne sais pas a quoi correspond i8042 et snd.


    snd représente tous les modules sons d'alsa et donc une priorisation de ceux ci.
    i8042 c'est le pilote chargé de la gestion des claviers et souris pour le noyau linux


    1010 écrit:
    ligne: RTIRQ_NAME_LIST j'ai testé "rtc snd usb i8042" et "rtc ehci_hcd ohci_hcd" mais ça ne change rien.


    As-tu relancé/réinitialisé le script ensuite ? Car modifier les valeurs sur cette ligne ne suffit pas, il faut relancer le script ensuite.
    Envoyé par 1010 le Sun 11 Mar 2018 18:15
    En effet, autant pour moi, j'ai bien confondu …limits.conf et …audio.conf. Je n'ai pas modifié ces valeurs (90/95).
    Ok pour i8042 et snd merci. J'ai re-essayé plusieurs combinaisons à la ligne RTIRQ_NAME_LIST mais sans succès.
    Je relance avec:
    Copy to clipboard
    # su -c "/etc/init.d/rtirq restart"
Setting IRQ priorities: start [rtc] irq=8 pid=111 prio=95: OK.
Setting IRQ priorities: start [ohci_hcd] irq=16 pid=102 prio=93: OK.
Setting IRQ priorities: start [ohci_hcd] irq=16 pid=103 prio=92: OK.
Setting IRQ priorities: start [ohci_hcd] irq=18 pid=105 prio=92: OK.
Setting IRQ priorities: start [ohci_hcd] irq=18 pid=106 prio=91: OK.
Setting IRQ priorities: start [ohci_hcd] irq=18 pid=107 prio=90: OK.
Setting IRQ priorities: start [ehci_hcd] irq=17 pid=99 prio=93: OK.
Setting IRQ priorities: start [ehci_hcd] irq=19 pid=101 prio=92: OK.


    Ça ne serai pas un conflit avec irq=18 par hasard ? (comme je vois plusieur pid sur irq=18 et une prio à 90 je me demande).
    Envoyé par olinuxx le Mon 12 Mar 2018 10:09 France
    Si tu penches pour un problème d'IRQ, tu peux essayer de donner la priorité IRQ au module-noyau pour la RME. Parce que là, en donnant la priorité aux modules ehci_hcd et ohci_hcd, tu donnes la priorité à tout ce qui passe par l'USB ce qui est moins précis. Quel est le nom du module-noyau pour la RME ?

    PS : pour info, j'ai créé la page RME ADI-2 Pro et y ai mis un lien vers ici. Sens toi libre et encouragé à l'améliorer.
    Envoyé par 1010 le Mon 12 Mar 2018 17:28
    -
    Envoyé par olinuxx le Mon 12 Mar 2018 18:17 France
    Pour trouver le nom du module utilisé par cette interface, tu peux par exemple comparer la sortie d'un lsmod entre 2 démarrages avec l'un où elle est branchée, et l'autre non. Ou bien encore farfouiller sur la toile jusqu'à trouver un endroit où ça en parle, ou encore demander à RME, ou regarder dans les sources du noyau,...

    PS : chouette !
    Envoyé par olinuxx le Mon 12 Mar 2018 18:24 France
    ... ou regarder sur sa page chez RME Image où il est écrit que c'est un matériel class-compliant qui utilise donc le module-noyau ... snd_usb_audio .
    Envoyé par 1010 le Mon 12 Mar 2018 18:49
    Ok d’accord je ne savais pas ça, mais alors pourquoi je ne vois pas «snd_usb_audio» avec un «cat /proc/interrupts» ?
    Sans surprise ajouter "rtc snd_usb_audio" à la ligne RTIRQ_NAME_LIST n'a aucun effet.
    Envoyé par olinuxx le Tue 13 Mar 2018 11:04 France
    mmm, j'ai peut être dis des bêtises ici. Ça fait longtemps que je n'ai pas mis mon nez dans rtirq. Je te suggère de lire la page rtirq puis la page Temps-réel pour les processus IRQ pour comprendre ce que tu peux faire avec ce script.

    Également, si tu en as la possibilité, je serais curieux de savoir si tu obtiens le même comportement en utilisant une LibraZiK-2. Attention ici, il faut une installation sur disque dur complète car la gestion de rtirq n'est pas active sur le live.