Bug 480622

Summary: Add a combined sink device so users can select multiple devices for output
Product: [Frameworks and Libraries] KPipeWire Reporter: Henning <boredsquirrel>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: REPORTED ---    
Severity: wishlist CC: aleixpol, nate, postix
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=464916
https://bugs.kde.org/show_bug.cgi?id=440536
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Henning 2024-01-31 20:00:57 UTC 
An idea: It is said to be possible to create a pipewire device that basically merges multiple devices.

I dont know how this is done and all guides I found where not fitting (Fedora 39 KDE).

Idea:
- add a default combined sink
- add a toggle "select multiple" on the bottom next to "increase max volume"
- if checked, allow to put multiple devices into this merged sink, making output through multiple speakers, headphones etc. possible

I can imagine that this merged device may be prone to breakages, as IDs may reset. But I dont know yet and I imagine it could be annoying needing to re-apply the merge on ever reboot.

Specified App:
pipewire-libs-1.0.1-1.fc40.x86_64
pipewire-1.0.1-1.fc40.x86_64
vlc-plugin-pipewire-3-1.fc40.x86_64
pipewire-pulseaudio-1.0.1-1.fc40.x86_64
pipewire-alsa-1.0.1-1.fc40.x86_64
pipewire-jack-audio-connection-kit-libs-1.0.1-1.fc40.x86_64
kpipewire-5.92.0-1.fc40.x86_64
pipewire-jack-audio-connection-kit-1.0.1-1.fc40.x86_64
pipewire-gstreamer-1.0.1-1.fc40.x86_64
pipewire-utils-1.0.1-1.fc40.x86_64
qemu-audio-pipewire-8.2.0-2.fc40.x86_64

--- Software ---
OS: Fedora Linux 40.20240130.0 (Kinoite Prerelease)
KDE Plasma: 5.92.0
Kernel: 6.8.0-0.rc0.20240112git70d201a40823.5.fc40.x86_64
Compositor: wayland

--- Hardware ---
CPU: AMD Ryzen 5 PRO 3500U w/ Radeon Vega Mobile Gfx
RAM: 5.7 GB
GPU: AMD Radeon Vega 8 Graphics
Video memory: 2048MB
Audio: Pipewire