Behringer FCA610 (USB) cannot be picked up and configured by PulseAudio

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There is a generic problem with multichannel devices that only accept 
being opened with many channels and not fewer, in your case 6 x 10 
channels probably.

I started working on a patch for that (primarily for the new firewire 
drivers) but then got busy with other things.

The workaround for now would be to write your own profile/path according 
to this link:

http://www.freedesktop.org/wiki/Software/PulseAudio/Backends/ALSA/Profiles/

On 2014-07-03 15:13, Benjamin Tegge wrote:
> Hello everyone,
>
> Somehow my message from earlier either didn't make it to this list (too
> large attachment) or didn't receive any replies. I just filed a bug at
> the bugtracker (https://bugs.freedesktop.org/show_bug.cgi?id=80850) this
> time using Fedora.
>
> Any help is still very much appreciated.
>
> Regards, Benjamin
>
> ---
>
> Hello,
>
> I'm trying to get a Behringer FCA610 (connected via USB) to work with
> PulseAudio on Ubuntu 14.04 (Kernel 3.13). I have already asked for
> assistance at the alsa-user mailing list a few weeks back, because back
> then I thought my problems were caused by ALSA. As far as I understand
> the device works fine with ALSA, but PulseAudio fails to configure the
> device properly (see the attached output of `pulseaudio -vv`).
>
> Here is the dmesg output, showing that the device is detected:
>
> [15217.305729] usb 3-1: new high-speed USB device number 2 using
> xhci_hcd
> [15217.324934] usb 3-1: New USB device found, idVendor=1397,
> idProduct=0003
> [15217.324940] usb 3-1: New USB device strings: Mfr=28, Product=29,
> SerialNumber=30
> [15217.324944] usb 3-1: Product: FCA610
> [15217.324947] usb 3-1: Manufacturer: BEHRINGER
> [15217.324950] usb 3-1: SerialNumber: 0x156400d040
> [15218.722923] usbcore: registered new interface driver snd-usb-audio
>
> Playback of multichannel WAV files with aplay also works:
>
> $ aplay -D plughw:CARD=FCA610,DEV=0 -c 10 Musik/test-6ch.wav
> Playing WAVE 'Musik/test-6ch.wav' : Signed 16 bit Little Endian, Rate
> 44100 Hz, Channels 6
> ^CAborted by signal Interrupt..
>
> These are the last few lines of `pulseaudio -vv` (as said above see the
> attachment for complete output):
>
> E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
> E: [pulseaudio] module.c: Failed to load module
> "module-alsa-card" (argument: "device_id="1"
> name="usb-BEHRINGER_FCA610_0x156400d040-00-FCA610"
> card_name="alsa_card.usb-BEHRINGER_FCA610_0x156400d040-00-FCA610"
> namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no
> deferred_volume=yes use_ucm=yes
> card_properties="module-udev-detect.discovered=1""): initialization
> failed.
> I: [pulseaudio] module-udev-detect.c:
> Card /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.0/sound/card1
> (alsa_card.usb-BEHRINGER_FCA610_0x156400d040-00-FCA610) failed to load
> module.
> D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC1 is accessible:
> yes
> D: [pulseaudio]
> module-udev-detect.c: /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.0/sound/card1 is busy: no
> W: [pulseaudio] module-udev-detect.c: Tried to
> configure /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.0/sound/card1
> (alsa_card.usb-BEHRINGER_FCA610_0x156400d040-00-FCA610) more often than
> 5 times in 10s
> I: [pulseaudio] client.c: Created 1 "Native client (UNIX socket client)"
> D: [pulseaudio] protocol-native.c: Protocol version: remote 28, local 28
> I: [pulseaudio] protocol-native.c: Got credentials: uid=1000 gid=1000
> success=1
> D: [pulseaudio] protocol-native.c: SHM possible: yes
> D: [pulseaudio] protocol-native.c: Negotiated SHM: yes
>
> There are also a lot of lines containing SND_PCM_NO_AUTO_FORMAT like:
>
> D: [pulseaudio] alsa-util.c: Trying plug:surround71:1 with
> SND_PCM_NO_AUTO_FORMAT ...
>
>
> I really like to get this device working pulseautio. Any assistance is
> very much appreciated.
>
> Regards, Benjamin
>
> _______________________________________________
> pulseaudio-discuss mailing list
> pulseaudio-discuss at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
>

-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic


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