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[Bug 1766956] [NEW] Sound has stopped working after today's update

 

Public bug reported:

I had an alert to do an update today from the software-updater so I went
ahead as usual and did the update.

As a result I now find that I get now sound out of my speakers. This is
true on this machine and on another machine that has the same Ubuntu
version (but slightly different hardware & different speakers).

In the pavucontrol when music or video is playing I have checked that
nothing is muted. And I used alsamixer to turn off any muting there. And
in fact there is only one sound output device (my speakers) and the
sound is being shown since the indicator that shows decibels shows
continual movement.

So actually, I don't think this is a bug in pavucontrol but in the sound
system generally, but the bug report tool only lets you specify an
actual package.

$ lsb_release -rd
Description:	Ubuntu 16.04.4 LTS
Release:	16.04
$ apt-cache policy pavucontrol
pavucontrol:
  Installed: 3.0-3build1
  Candidate: 3.0-3build1
  Version table:
 *** 3.0-3build1 500
        500 http://gb.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: pavucontrol 3.0-3build1
ProcVersionSignature: Ubuntu 4.4.0-121.145-generic 4.4.117
Uname: Linux 4.4.0-121-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Apr 25 20:13:27 2018
InstallationDate: Installed on 2015-11-05 (902 days ago)
InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: pavucontrol
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1766956

Title:
  Sound has stopped working after today's update

Status in pavucontrol package in Ubuntu:
  New

Bug description:
  I had an alert to do an update today from the software-updater so I
  went ahead as usual and did the update.

  As a result I now find that I get now sound out of my speakers. This
  is true on this machine and on another machine that has the same
  Ubuntu version (but slightly different hardware & different speakers).

  In the pavucontrol when music or video is playing I have checked that
  nothing is muted. And I used alsamixer to turn off any muting there.
  And in fact there is only one sound output device (my speakers) and
  the sound is being shown since the indicator that shows decibels shows
  continual movement.

  So actually, I don't think this is a bug in pavucontrol but in the
  sound system generally, but the bug report tool only lets you specify
  an actual package.

  $ lsb_release -rd
  Description:	Ubuntu 16.04.4 LTS
  Release:	16.04
  $ apt-cache policy pavucontrol
  pavucontrol:
    Installed: 3.0-3build1
    Candidate: 3.0-3build1
    Version table:
   *** 3.0-3build1 500
          500 http://gb.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: pavucontrol 3.0-3build1
  ProcVersionSignature: Ubuntu 4.4.0-121.145-generic 4.4.117
  Uname: Linux 4.4.0-121-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.16
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Wed Apr 25 20:13:27 2018
  InstallationDate: Installed on 2015-11-05 (902 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: pavucontrol
  UpgradeStatus: No upgrade log present (probably fresh install)

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