1776932 - Audio/multimedia playback status shows on all taskbar window thumbnails, not just the currently playing one

Status: UNCONFIRMED

(Core :: Audio/Video: Playback, defect, P3)

Description

[Dan Dascalescu]

Attachment: Multimedia playback status shows up on all windows.png

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:101.0) Gecko/20100101 Firefox/101.0

Steps to reproduce:

1. Open several Firefox windows
2. In one of them, play a YouTube video
3. Mouse over the taskbar icon in KDE Neon 5.25 (X11)

Actual results:

All windows show the same multimedia playback indicator, making it impossible to tell which windows is the source of the audio/sound.

Expected results:

Only the window that is actually playing the multimedia content should have its thumbnail/preview changed. The others should keep the preview of the current tab.

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:jimm, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 3

[Paul Adenot (:padenot)]

Weird. Alastor, is this something you expect? Have you tried this with KDE at all, do we have similar reports?

Comment 4

[Alastor Wu [:alwu]]

Is the amount of the control interface equal to the amount of window you open? If you only open one window, would there only be one interface showing? Do those interfaces all control the same media? If so, when you press one, would others change immediately as well?
Thank you.

Comment 5

[Dan Dascalescu]

Is the amount of the control interface equal to the amount of window you open?

Probably. I have more windows than fit on the screen, and they all show the controls.

If you only open one window, would there only be one interface showing?

As opposed to none, or more? Never noticed an unusual number of interfaces back when I had only one open window.

Do those interfaces all control the same media? If so, when you press one, would others change immediately as well?

Yes and yes. It's the last played media. If I play another YouTube video, all interfaces show the name of that YouTube video, and the window where I played it, shows its thumbnail. The others show the preview of the window with whatever tab it had open (like in the initial screenshot).

Comment 6

[Alastor Wu [:alwu]]

Sorry for my late reply. I don't have a KDE enviroment so I tried it on Ubuntu on which I couldn't reproduce the issue (they both use dbus)

Would you mind to use this command to see the list of dbus when the issue happens?

$ dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.ListNames`

In the ideal condition, there should be only one instance, like this org.mpris.MediaPlayer2.firefox.instance{PID}, maybe on KDE we incorrectly create different identity when dbus asks for that. Or, KDE has some issues on dealing with dbus message. Do you see the similar issue on other browsers as well?

Thank you.