[alsa-devel] Audio USB disappears suddenly

[mobidyc]

Thanks for this information,

I think it's time to contact the manufacturer.

Do you know if I can take some relevant traces (kernel module to load,
/proc/asound file to parse, anything else)?
so I can detail my email to him.

Thanks.

--
Mobidyc

2014-12-10 21:03 GMT+01:00 Clemens Ladisch <clemens at ladisch.de>:

> mobidyc wrote:
> > USB DAC suddenly disappears, from dmesg I can see:
> >
> > [13083.161157] usb 1-1.3: 1:2: usb_set_interface failed (-110)
> > [13083.316344] usb 1-1.3: 1:2: usb_set_interface failed (-71)
> > [13083.471927] usb 1-1.3: 1:2: usb_set_interface failed (-71)
> > [13083.789810] usb 1-1.3: 1:2: usb_set_interface failed (-71)
>
> These error codes indicate that the device's firmware does not react at
> all.  Either the firmware has locked up due to a bug, or the hardware
> has shut down for some reason.
>
>
> Regards,
> Clemens
>