[Bug 254465] [sound] No sound with Schiit Audio Modi 3+ USB dac

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Sun Mar 21 16:15:17 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254465

            Bug ID: 254465
           Summary: [sound] No sound with Schiit Audio Modi 3+ USB dac
           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: samir at noir.im

Created attachment 223480
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=223480&action=edit
usbconfig

The USB connected Modi 3+ (from Schiit Audio) does not deliver sound
(playback).
This was tested by playing an audio file with mpv, and streaming from Firefox
(with oss backend), under FreeBSD 12.2-RELEASE and also after upgrading to
13.0-RC3

The dac looks correctly detected by the system, and with some debug
(hw.snd.verbose=4 + hw.usb.uaudio.debug=15) data seems transferred to the
device.

Attached: usbconfig, hw.snd sysctl, dev.pcm.2 sysctl, cat /dev/sndstat and
dmesg

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