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[b00n <ub-0002@xxxxxxxxx>]

Public bug reported:

I have a working solution, somebody at
https://answers.launchpad.net/ubuntu/+source/alsa-
driver/+question/266299 suggested I file a bug report.  From that:

I am using an Intel NUC with internal WiFi/Bluetooth and Seiki TV as a
monitor, Ubuntu 14.04.2 64-bit with all recent updates and no particular
customization but with blueman installeds. When I disconnect the
Bluetooth headset, all audio stops working.

Reproduce-by:

 * Reboot and log in.
 * "System settings > Sound" shows "HDMI/DisplayPort built-in audio"
 * "Test Sound > Test (Front Left)" works
 * Power-on BT headset
 * Open terminal
 * Run "pulseaudio --kill"
 * Wait... "Headset MW600" appears in "System settings > Sound"
 * Select "Headset MW600"
 * "Test Sound > Test (Mono)" works
 * Power-off BT headset
 * [optional, does not change result] run "pulseaudio --kill"
 * Select "HDMI/DisplayPort built-in audio"
 * "Test Sound > Test (Front Left)" causes "System settings" to gray out a long time (e.g., a minute)
 * Sound is no longer working in any obvious way

Via https://help.ubuntu.com/community/SoundTroubleshootingProcedure I
did

  wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh && chmod
+x ./alsa-info.sh && ./alsa-info.sh

It brings up a first screen "This script visits the following ... to
collect diagnostic information ..." I clicked <OK> and it apparently
just hangs. I can Ctrl-C it.

If I run 'top', pulseaudio is about 1% of CPU on an ongoing basis. This
seems high to me.

The instructions here say "what you think should happen instead", which
is: I should be able to power-off the BT headset and audio should keep
working.

I had installed blueman while chasing another problem.  When I removed
blueman (as in sudo apt-get remove blueman)  the symptom above went
away.

So for my needs, I'd say this is "fixed", but it also seems undesirable
to have situations where things go bad with a hang. If somebody thinks
this is worth chasing, I can re-install blueman and run tests people
suggest to help diagnose the problem.

Release: 14.04.2

Version:
pulseaudio:
  Installed: 1:4.0-0ubuntu11.1
  Candidate: 1:4.0-0ubuntu11.1
  Version table:
 *** 1:4.0-0ubuntu11.1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:4.0-0ubuntu11 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: hang sound

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1451204

Title:
  Sounds stops on BT headset removed, if blueman installed

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  I have a working solution, somebody at
  https://answers.launchpad.net/ubuntu/+source/alsa-
  driver/+question/266299 suggested I file a bug report.  From that:

  I am using an Intel NUC with internal WiFi/Bluetooth and Seiki TV as a
  monitor, Ubuntu 14.04.2 64-bit with all recent updates and no
  particular customization but with blueman installeds. When I
  disconnect the Bluetooth headset, all audio stops working.

  Reproduce-by:

   * Reboot and log in.
   * "System settings > Sound" shows "HDMI/DisplayPort built-in audio"
   * "Test Sound > Test (Front Left)" works
   * Power-on BT headset
   * Open terminal
   * Run "pulseaudio --kill"
   * Wait... "Headset MW600" appears in "System settings > Sound"
   * Select "Headset MW600"
   * "Test Sound > Test (Mono)" works
   * Power-off BT headset
   * [optional, does not change result] run "pulseaudio --kill"
   * Select "HDMI/DisplayPort built-in audio"
   * "Test Sound > Test (Front Left)" causes "System settings" to gray out a long time (e.g., a minute)
   * Sound is no longer working in any obvious way

  Via https://help.ubuntu.com/community/SoundTroubleshootingProcedure I
  did

    wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh &&
  chmod +x ./alsa-info.sh && ./alsa-info.sh

  It brings up a first screen "This script visits the following ... to
  collect diagnostic information ..." I clicked <OK> and it apparently
  just hangs. I can Ctrl-C it.

  If I run 'top', pulseaudio is about 1% of CPU on an ongoing basis.
  This seems high to me.

  The instructions here say "what you think should happen instead",
  which is: I should be able to power-off the BT headset and audio
  should keep working.

  I had installed blueman while chasing another problem.  When I removed
  blueman (as in sudo apt-get remove blueman)  the symptom above went
  away.

  So for my needs, I'd say this is "fixed", but it also seems
  undesirable to have situations where things go bad with a hang. If
  somebody thinks this is worth chasing, I can re-install blueman and
  run tests people suggest to help diagnose the problem.

  Release: 14.04.2

  Version:
  pulseaudio:
    Installed: 1:4.0-0ubuntu11.1
    Candidate: 1:4.0-0ubuntu11.1
    Version table:
   *** 1:4.0-0ubuntu11.1 0
          500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:4.0-0ubuntu11 0
          500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

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