[Voyage-linux] Voyage-MPD; snd-usb-audio: probe of 5-8:1.0 failed with error -5

[chris hermansen]

Good day,

On Dec 23, 2015 16:06, "z0rk" <z0rk at carukia.net> wrote:
>
>  Linux voyage 3.14.12-voyage-rt-rt9 #1 SMP PREEMPT RT Fri Apr 17 15:10:46
HKT
> 2015 i686 GNU/Linux
>
> USB DAC turned on and connected
>
> dmesg
> [  283.995809] usb 5-8: USB disconnect, device number 4
> [  294.335129] usb 5-8: new high-speed USB device number 5 using ehci-pci
> [  294.450184] usb 5-8: New USB device found, idVendor=20b1,
idProduct=000a
> [  294.450871] usb 5-8: New USB device strings: Mfr=1, Product=3,
> SerialNumber=0
> [  294.451628] usb 5-8: Product: xCORE USB Audio 2.0
> [  294.452135] usb 5-8: Manufacturer: XMOS
> [  294.453256] cannot find the slot for index 0 (range 0-0), error: -16
> [  294.453918] cannot create card instance 0
> [  294.454456] snd-usb-audio: probe of 5-8:1.0 failed with error -5
>
> Only my internal audio device is recognized
>
> aplay -l
> root at voyage:~# aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: STAC9228 Analog [STAC9228 Analog]
>   Subdevices: 0/1
>   Subdevice #0: subdevice #0
>
> I thought this thread might help
>
>
http://voyage-linux.34677.n3.nabble.com/voyage-mpd-0-10-0-does-not-recognize-Combo384-td4026314.html#a4026316
>
> I removed the line options snd-usb-audio index=0 from
> /etc/modprobe.d/alsa-base.conf. Now I get
>
> aplay -l
> root at voyage:~# aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: STAC9228 Analog [STAC9228 Analog]
>   Subdevices: 0/1
>   Subdevice #0: subdevice #0
> card 1: x20 [xCORE USB Audio 2.0], device 0: USB Audio [USB Audio]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
> So the device is recognized, BUT there's still no audio playing through
it.
> I've tried to use alsamixer and F6 to set the sound card device to xCore
> USB, but still no audio is playing through it.
>
> I've also tried to change the line in /etc/modprobe.d/alsa-base.conf to
> options snd-usb-audio index=1, but the result is exactly the same.
>
> Any help is appreciated.

Two suggestions.

The 3.14 kernel is pretty old. Can you try this on a newer kernel, for
example on a desktop or laptop running a 4.x kernel? Maybe the latest
Ubuntu or Fedora live CD?

Then, if that doesn't work, try the ALSA user mailing list
alsa-user at lists.sourceforge.net (you have to subscribe)
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