Well that's interesting, it looks like your audio device might have a dfu
mode. I wonder if that's the case for the other reporters. Can you please
also share lsusb output? Everyone affected it would be great to share both
of these so that upstream can make sense of common denominations to figure
what's actually going on.

On Sat, May 28, 2016, 13:50 Taras <taras.za...@gmail.com> wrote:

> Hi Mario,  I believe the
> https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1574079/comments/20
> debug output is not complete. Please see the log:
>
> ...
> 21:26:16        15      com.hughski.ColorHugALS.firmware        ColorHugALS
> 21:26:30        waiting a small time for other providers
> 21:26:30        using b69159f2-3778-5728-80d0-01be18b2ea30 for
> USB\VID_1397&PID_0501
> 21:26:30        emit added from DFU: usb:00:01:03
> 21:26:31        no product string descriptor
> 21:26:33        Called GetUpdates()
> (END)
>
> Here I've also tried to connect my USB sound-card BEHRINGER UMC204 at
> 21:26:30.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1574079
>
> Title:
>   USB audio device is not recognized after startup in 16.04
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1574079/+subscriptions
>

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https://bugs.launchpad.net/bugs/1574079

Title:
  USB audio device is not recognized after startup in 16.04

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