[Bug 1749465] [NEW] lsusb -v fails when pavucontrol (PulseAudio Volume Control) is open and there is a Dell AC511 soundbar attached

[Veron Rado]

Public bug reported:

If pavucontrol "PulseAudio Volume Control" is open it causes 'sudo lsusb
-v' to fail if there is a Dell AC511 soundbar attached via USB.

The error message:
> $ sudo lsusb -v
>
> ----[ snip ]----
>
> Bus 001 Device 002: ID 413c:a503 Dell Computer Corp.
> lsusb: gconv.c:74: __gconv: Assertion `outbuf != NULL && *outbuf != NULL' failed.
> Aborted


lsusb -v by device ID:
> $ sudo lsusb -v -d 413c:a503
>
> Bus 001 Device 002: ID 413c:a503 Dell Computer Corp.
> lsusb: gconv.c:74: __gconv: Assertion `outbuf != NULL && *outbuf != NULL' failed.
> Aborted


The bug goes away when "PulseAudio Volume Control" is closed.

Ubuntu 17.10
Linux 4.13.0-32-generic x86_64
pavucontrol version 3.0-3.1
lsusb (usbutils) 007

** Affects: usbutils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: pavucontrol

** Summary changed:

- lsusb -v to fails when pavucontrol (PulseAudio Volume Control) is open and there is a Dell AC511 soundbar attached
+ lsusb -v fails when pavucontrol (PulseAudio Volume Control) is open and there is a Dell AC511 soundbar attached

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https://bugs.launchpad.net/bugs/1749465

Title:
  lsusb -v fails when pavucontrol (PulseAudio Volume Control) is open
  and there is a Dell AC511 soundbar attached

Status in usbutils package in Ubuntu:
  New

Bug description:
  If pavucontrol "PulseAudio Volume Control" is open it causes 'sudo
  lsusb -v' to fail if there is a Dell AC511 soundbar attached via USB.

  The error message:
  > $ sudo lsusb -v
  >
  > ----[ snip ]----
  >
  > Bus 001 Device 002: ID 413c:a503 Dell Computer Corp.
  > lsusb: gconv.c:74: __gconv: Assertion `outbuf != NULL && *outbuf != NULL' failed.
  > Aborted


  lsusb -v by device ID:
  > $ sudo lsusb -v -d 413c:a503
  >
  > Bus 001 Device 002: ID 413c:a503 Dell Computer Corp.
  > lsusb: gconv.c:74: __gconv: Assertion `outbuf != NULL && *outbuf != NULL' failed.
  > Aborted

  
  The bug goes away when "PulseAudio Volume Control" is closed.

  Ubuntu 17.10
  Linux 4.13.0-32-generic x86_64
  pavucontrol version 3.0-3.1
  lsusb (usbutils) 007

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