[Bug 257082] Sound with Scarlett Solo 3rd intermittently cuts off for very short periods of milliseconds.

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 09 Jul 2021 15:29:19 +0000
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257082

            Bug ID: 257082
           Summary: Sound with Scarlett Solo 3rd intermittently cuts off
                    for very short periods of milliseconds.
           Product: Base System
           Version: 13.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: usb
          Assignee: usb_at_FreeBSD.org
          Reporter: hodong_at_nimfsoft.com

Hello.

Sound with Scarlett Solo 3rd intermittently cuts off for very short periods of
milliseconds within a few minutes.  At this moment crackling noise occurs.
Sometimes there is no sound for 0.0x seconds.

I tried it on Linux (kernel 5.10.x) and MS Windows 10 as a test, and it works
fine.

% uname -a
FreeBSD nimfsoft 13.0-RELEASE-p3 FreeBSD 13.0-RELEASE-p3 #0: Tue Jun 29
19:46:20 UTC 2021    
root_at_amd64-builder.daemonology.net:/usr/obj/usr/src/amd64.amd64/sys/GENERIC 
amd64

% dmesg | grep uaudio
uaudio0 on uhub0
uaudio0: <Scarlett Solo USB> on usbus1
uaudio0: Play[0]: 192000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play[0]: 176400 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play[0]: 96000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play[0]: 88200 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play[0]: 48000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Play[0]: 44100 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 192000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 176400 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 96000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 88200 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 48000 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 44100 Hz, 2 ch, 32-bit S-LE PCM format, 2x8ms buffer.
uaudio0: No MIDI sequencer.
pcm4: <USB audio> on uaudio0
uaudio0: No HID volume keys found.

% cat /dev/sndstat
Installed devices:
pcm0: <ATI R6xx (HDMI)> (play)
pcm1: <ATI R6xx (HDMI)> (play)
pcm2: <Realtek ALC887 (Rear Analog)> (play/rec)
pcm3: <Realtek ALC887 (Front Analog)> (play/rec)
pcm4: <USB audio> (play/rec) default
No devices installed from userspace.

% sudo usbconfig
ugen1.1: <0x1022 XHCI root HUB> at usbus1, cfg=0 md=HOST spd=SUPER (5.0Gbps)
pwr=SAVE (0mA)
ugen0.1: <0x1022 XHCI root HUB> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps)
pwr=SAVE (0mA)
ugen1.2: <Focusrite Scarlett Solo USB> at usbus1, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON (500mA)
ugen1.3: <Logitech USB Receiver> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps)
pwr=ON (98mA)
ugen1.4: <Gaming KB Gaming KB> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps)
pwr=ON (300mA)

% sudo usbconfig -d 1.2 dump_all_desc
ugen1.2: <Focusrite Scarlett Solo USB> at usbus1, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON (500mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0210
  bDeviceClass = 0x00ef  <Miscellaneous device>
  bDeviceSubClass = 0x0002
  bDeviceProtocol = 0x0001
  bMaxPacketSize0 = 0x0040
  idVendor = 0x1235
  idProduct = 0x8211
  bcdDevice = 0x05ff
  iManufacturer = 0x0001  <Focusrite>
  iProduct = 0x0003  <Scarlett Solo USB>
  iSerialNumber = 0x0002  <Y7DEWVK0C71322>
  bNumConfigurations = 0x0001

 Configuration index 0

    bLength = 0x0009
    bDescriptorType = 0x0002
    wTotalLength = 0x0126
    bNumInterfaces = 0x0005
    bConfigurationValue = 0x0001
    iConfiguration = 0x0009  <Internal>
    bmAttributes = 0x0080
    bMaxPower = 0x00fa

    Additional Descriptor

    bLength = 0x08
    bDescriptorType = 0x0b
    bDescriptorSubType = 0x00
     RAW dump:
     0x00 | 0x08, 0x0b, 0x00, 0x03, 0x01, 0x00, 0x20, 0x00


    Interface 0
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0000
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0001
      bInterfaceProtocol = 0x0020
      iInterface = 0x0003  <Scarlett Solo USB>

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x09, 0x24, 0x01, 0x00, 0x02, 0x08, 0x77, 0x00,
       0x08 | 0x00

      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x24
      bDescriptorSubType = 0x0a
       RAW dump:
       0x00 | 0x08, 0x24, 0x0a, 0x29, 0x03, 0x07, 0x00, 0x0a


      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x24
      bDescriptorSubType = 0x0b
       RAW dump:
       0x00 | 0x08, 0x24, 0x0b, 0x28, 0x01, 0x29, 0x03, 0x08


      Additional Descriptor

      bLength = 0x11
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x11, 0x24, 0x02, 0x02, 0x01, 0x01, 0x00, 0x28,
       0x08 | 0x02, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00,
       0x10 | 0x06

      Additional Descriptor

      bLength = 0x12
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x12, 0x24, 0x06, 0x0a, 0x02, 0x00, 0x00, 0x00,
       0x08 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
       0x10 | 0x00, 0x00


      Additional Descriptor

      bLength = 0x0c
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump:
       0x00 | 0x0c, 0x24, 0x03, 0x14, 0x01, 0x03, 0x00, 0x0a,
       0x08 | 0x28, 0x00, 0x00, 0x00


      Additional Descriptor

      bLength = 0x11
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x11, 0x24, 0x02, 0x01, 0x01, 0x02, 0x00, 0x28,
       0x08 | 0x02, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00,
       0x10 | 0x00

      Additional Descriptor

      bLength = 0x12
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x12, 0x24, 0x06, 0x0b, 0x01, 0x00, 0x00, 0x00,
       0x08 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
       0x10 | 0x00, 0x00


      Additional Descriptor

      bLength = 0x0c
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump:
       0x00 | 0x0c, 0x24, 0x03, 0x16, 0x01, 0x01, 0x00, 0x0b,
       0x08 | 0x28, 0x00, 0x00, 0x07



    Interface 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0020
      iInterface = 0x0004  <Scarlett Solo USB >


    Interface 1 Alt 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0001
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0020
      iInterface = 0x0004  <Scarlett Solo USB >

      Additional Descriptor

      bLength = 0x10
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x10, 0x24, 0x01, 0x02, 0x04, 0x01, 0x01, 0x00,
       0x08 | 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x0f


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x06, 0x24, 0x02, 0x01, 0x04, 0x18


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0001  <OUT>
        bmAttributes = 0x000d  <SYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x00c8
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000

      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x08, 0x25, 0x01, 0x00, 0x00, 0x01, 0x00, 0x02



    Interface 2
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0002
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0020
      iInterface = 0x0005  <Scarlett Solo USB >


    Interface 2 Alt 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0002
      bAlternateSetting = 0x0001
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0020
      iInterface = 0x0005  <Scarlett Solo USB >

      Additional Descriptor

      bLength = 0x10
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x10, 0x24, 0x01, 0x16, 0x04, 0x01, 0x01, 0x00,
       0x08 | 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x11


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x06, 0x24, 0x02, 0x01, 0x04, 0x18


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x000d  <SYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x00c8
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000

      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x08, 0x25, 0x01, 0x00, 0x00, 0x01, 0x00, 0x02



    Interface 3
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0003
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x0001
      bInterfaceProtocol = 0x0020
      iInterface = 0x000b  <Focusrite Control>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0083  <IN>
        bmAttributes = 0x0003  <INTERRUPT>
        wMaxPacketSize = 0x0040
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 4
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0004
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0002
      bInterfaceClass = 0x0008  <Mass storage>
      bInterfaceSubClass = 0x0006
      bInterfaceProtocol = 0x0050
      iInterface = 0x0003  <Scarlett Solo USB>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0002  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 1
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0082  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

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Received on Fri Jul 09 2021 - 15:29:19 UTC

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