[pulseaudio-tickets] [Bug 48730] New: pulseaudio does not set volume on left channel correctly with Sonica Theater USB sound card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=48730

             Bug #: 48730
           Summary: pulseaudio does not set volume on left channel
                    correctly with Sonica Theater USB sound card
    Classification: Unclassified
           Product: PulseAudio
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: daemon
        AssignedTo: pulseaudio-bugs at lists.freedesktop.org
        ReportedBy: Martin at Lichtvoll.de
         QAContact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net


Created attachment 60009
  --> https://bugs.freedesktop.org/attachment.cgi?id=60009
pulseaudio -vvvvv log of starting pulseaudio, plugging in Sonica Theater and
unplugging it

When I plug in the USB Sonica Theater and Pulseaudio recognized instead of the
bailing out with "usb_set_interface failed" message I get the following
situation regarding volume acording to alsamixer:

- left channel: 0
- right channel: 79

Expected results:

Both channels at 79 or something like that.

I reported this on Pulseaudio mailing list already:

[pulseaudio-discuss] usb sound card: PCM has 8 channels, thats too much &
cannot submit datapipe for urb 0

I think its due to:

> Nov 19 21:47:05 merkaba pulseaudio[1666]: [pulseaudio] alsa-mixer.c:
> Volume element PCM has 8 channels. That's too much! I can't handle
> that! Nov 19 21:47:05 merkaba kernel: [   53.498439] cannot submit
> datapipe for urb 0, error -28: not enough bandwidth

As Tanu Kaskinen requested I now did a pulseaudio -vvvvv log that I will
attach.

The sound card involved is:

martin at shambhala:~> lsusb   
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 0763:2007 Midiman M-Audio Sonica Theater


(lsusb-v I will attach as well).

Thanks,
Martin

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