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Since I upgraded to Ubuntu GNOME 15.04 using Firefox and GNOME 3.14 I stopped getting desktop notifications (no visual or sound), although now that I have upgraded to GNOME 3.16 I am getting, delayed, but still the visual built-in notifications. Though still no sound, and every time that I do get pinged I notice this message in my Firefox console log:

enter image description here

So I am wondering why I am getting this, in what, and how to fix it?


OS Information:

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 15.04
Release:    15.04
Codename:   vivid
Flavour: GNOME
GNOME Version: 3.16

Package Information:

Firefox:

firefox:
  Installed: 41.0+build3-0ubuntu0.15.04.1
  Candidate: 41.0+build3-0ubuntu0.15.04.1
  Version table:
 *** 41.0+build3-0ubuntu0.15.04.1 0
        500 http://archive.ubuntu.com/ubuntu/ vivid-updates/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu/ vivid-security/main amd64 Packages
        100 /var/lib/dpkg/status
     37.0+build2-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages

Gnome Shell:

gnome-shell:
  Installed: 3.16.3-1ubuntu1~vivid1
  Candidate: 3.16.3-1ubuntu1~vivid1
  Version table:
 *** 3.16.3-1ubuntu1~vivid1 0
        500 http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status
     3.14.4-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages

1 Answers1

1

This issue may be occurring because there are no packages available to decode the MP3 sound file. They may have been present on your previous installation but lost during the upgrade.

Check to see if you have a package to perform the decoding (such as ubuntu-restricted-extras).

Source: https://stackoverflow.com/a/32663653/5217088