Ubuntu
indicator-sound package

Regression in Ubuntu 16.04: Pause button is not shown when CanPause is true and CanPlay is false

Bug #1576970 reported by Jiří Janoušek on 2016-04-30

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	indicator-sound (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

Sound Indicator stopped working correctly with my app Nuvola Player in Ubuntu 16.04 (this issue hasn't happened in previous Ubuntu releases). When I start playback via the Sound Indicator play button, the play button doesn't change to a pause button although all required MPRIS metadata are set correctly by Nuvola Player: CanPause is true, CanPlay is false and PlaybackStatus is Playing.

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Jiří Janoušek (fenryxo) wrote on 2016-04-30:

Nuvola Player, its MPRIS interface in D-feet and broken Unity sound indicator Edit (283.9 KiB, image/png)

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Jiří Janoušek (fenryxo) wrote on 2016-04-30:

Ubuntu releases and corresponding indicator-sound packages I have tested:

- Ubuntu 16.04 indicator-sound 12.10.2+16.04.20160406-0ubuntu1 doesn't work properly.
- Ubuntu 15.10 indicator-sound 12.10.2+15.10.20150915-0ubuntu1 does work properly.
- Ubuntu 14.04 indicator-sound 12.10.2+14.04.20140401-0ubuntu1 does work properly.

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Jiří Janoušek (fenryxo) wrote on 2016-05-03:

The issue is probably caused by wrong implementation of MPRIS CanPlay and CanPause flags in Nuvola Player. They are supposed be almost always true independently of playback state.

Changed in indicator-sound (Ubuntu):
status:	New → Invalid

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Xavi Garcia (xavi-garcia-mena) wrote on 2016-05-04:

I've been testing this with the following players:

rhythmbox
banshee
spotify

All 3 work fine, so it makes me think the problem is in Nuvola.

We haven't change anything about MPRIS in the sound indicator recently.

I'm moving this as invalid, if you still think it is a problem in the sound indicator, please re-open.

andzep (andzep) on 2016-07-12

Changed in indicator-sound (Ubuntu):
status:	Invalid → Confirmed

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andzep (andzep) wrote on 2016-07-12:

I have exactly the same problem with cantata. After the upgrade to 16.04 today, the play button stays on 'play state' and also the media play key on the keyboard doesn't work anymore for cantata. On rhythmbox everything still works as expected.

Both things were working perfectly well on 14.04 before the upgrade.

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andzep (andzep) wrote on 2016-07-12:

Ok, seems like the bug with the sound indicator was indeed a cantata issue:

https://github.com/CDrummond/cantata/issues/863

The problem with the media 'play/pause'-key on the keyboard is something else.