[Bug 1977564] Re: wireplumber conflicts with pipewire-media-session & needs fixing

[Dylan Aïssi]

Basically, pipewire-pulse.service wants pipewire-session-manager.service.
pipewire-session-manager.service is an alias from both wireplumber.service and pipewire-media-session.service.
To avoid this conflict, we need to remove pipewire-media-session.service during the remove step of the package, not only at the purge step.

I am thinking about applying this fix. And a similar patch for
wireplumber, just in case a user wants to move from wireplumber to
pipewire-media-session for whatever reason.

** Patch added: "0001-Remove-pipewire-media-session.service-when-the-packa.patch"
   https://bugs.launchpad.net/ubuntu/+source/wireplumber/+bug/1977564/+attachment/5595684/+files/0001-Remove-pipewire-media-session.service-when-the-packa.patch

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https://bugs.launchpad.net/bugs/1977564

Title:
  wireplumber conflicts with pipewire-media-session & needs fixing

Status in pipewire-media-session package in Ubuntu:
  Triaged
Status in ubuntu-meta package in Ubuntu:
  Triaged
Status in wireplumber package in Ubuntu:
  Triaged
Status in pipewire-media-session package in Debian:
  Confirmed

Bug description:
  This issue was reported on IRC and we should probably fix it before
  installing wireplumber by default so I'm setting the block-proposed
  tag.

  https://i.imgur.com/L5VFZO8.png

  wireplumber is apparently too forceful in how it enables PipeWire.
  Both Arch Linux and Debian had to

  https://archlinux.org/news/undone-replacement-of-pipewire-media-
  session-with-wireplumber/

  Is it necessary for wireplumber to conflict with pipewire-media-
  session?

  Should we add Replaces?

  What files does pipewire-media-session need to clean up when it is
  removed?

  See https://salsa.debian.org/gnome-team/gnome-remote-
  desktop/-/commit/52799cfd for an example of how files that aren't
  technically conffiles can be removed.

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