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

[Jeremy Bicha]

** Description changed:

- 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.
+ Impact
+ ------
+ Ubuntu 22.04 LTS installs pipewire-media-session by default. If a user attempts to install wireplumber, it will break the pipewire-session-manager systemd user service used by gnome-remote-desktop
  
- https://i.imgur.com/L5VFZO8.png
+ Failed to preset unit, file /etc/systemd/user/pipewire-session-manager.service already exists and is a symlink to /usr/lib/systemd/user/pipewire-media-session.service.
+ Created symlink /etc/systemd/user/pipewire.service.wants/wireplumber.service \u2192 /usr/lib/systemd/user/wireplumber.service.
+ /usr/bin/deb-systemd-helper: error: systemctl preset failed on wireplumber.service: No such file or directory
  
- wireplumber is apparently too forceful in how it enables PipeWire. Both
- Arch Linux and Debian had to
+ More details are needed for whether the broken symlink causes any issues
+ since pipewire appears to still work.
  
- https://archlinux.org/news/undone-replacement-of-pipewire-media-session-
- with-wireplumber/
+ Test Case
+ ---------
  
- 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.
+ What Could Go Wrong
+ -------------------

** Also affects: wireplumber (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Also affects: pipewire-media-session (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Changed in: pipewire-media-session (Ubuntu Jammy)
       Status: New => Incomplete

** Changed in: wireplumber (Ubuntu Jammy)
       Status: New => Incomplete

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

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

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