UI volume warnings need revision

Bug #1481913 reported by John McAleely on 2015-08-05
This bug affects 3 people
Affects Status Importance Assigned to Milestone
Canonical System Image
Alejandro J. Cura
indicator-sound (Ubuntu)
Xavi Garcia

Bug Description

As raised in OEM bug #1474364 (the title there is poor), the warning scheme used by Ubuntu does not currently follow the letter of the EU regulations for mobile devices (it seems to follow the spirit).

Design have now reviewed the regulations (bug #1480912), and propose:


This is the diff: https://wiki.ubuntu.com/Sound?action=diff&rev2=146&rev1=145

The UI notification scheme needs to be updated to match the new design.

Related branches

John McAleely (john.mcaleely) wrote :

I assume the system already has an agreed way to know which is the '85dB level' with the driver. If not, the work in bug #1481916 should include those changes.

Changed in canonical-devices-system-image:
status: New → Confirmed
importance: Undecided → Critical
milestone: none → ww34-2015
Changed in canonical-devices-system-image:
assignee: nobody → Alejandro J. Cura (alecu)
Changed in indicator-sound (Ubuntu):
assignee: nobody → Xavi Garcia (xavi-garcia-mena)
status: New → Confirmed
importance: Undecided → Critical
tags: added: audio
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package indicator-sound - 12.10.2+15.10.20150807.6-0ubuntu1

indicator-sound (12.10.2+15.10.20150807.6-0ubuntu1) wily; urgency=medium

  [ CI Train Bot ]
  * New rebuild forced.

  [ Charles Kerr ]
  * Revised UI volume warnings to comply with EU requirements. (LP:

 -- CI Train Bot <email address hidden> Fri, 07 Aug 2015 22:35:58 +0000

Changed in indicator-sound (Ubuntu):
status: Confirmed → Fix Released
Changed in canonical-devices-system-image:
status: Confirmed → Fix Committed
John McAleely (john.mcaleely) wrote :

In extremis, if we can't adjust the driver sucessfully, what value should be modified to move the level at which the warning UI appears? I would like to confirm that if I get the warnings to appear at the 50% point on the indicator slider, we do conform to the regulations (ie that point matches the required output dB/mV).

Alejandro J. Cura (alecu) wrote :

The dconf key for this is "high-volume-level", it defaults to 0.75 and can be overridden in the device tarball so each OEM can adjust this value to specific devices.

Details are in the first branch attached to this bug:

John McAleely (john.mcaleely) wrote :

Thanks alecu - it seems that the code moved on in the second branch, and my experiment suggests the key in question is:

com.canonical.indicator.sound warning-volume-decibels

If I set this to -16.0 (the default is -8.0) the warning appears around the 50% mark of the indicator.

Alejandro J. Cura (alecu) wrote :

Ah, my bad. Sorry for pointing at the wrong one.

Changed in canonical-devices-system-image:
status: Fix Committed → Fix Released
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