#1043424 plasma-desktop: Missing dependency on pipewire breaks screen sharing under Wayland

Package:
plasma-desktop
Source:
plasma-desktop
Description:
Tools and widgets for the desktop
Submitter:
Nazar Zhuk
Date:
2023-08-12 05:33:05 UTC
Severity:
normal
#1043424#5
Date:
2023-08-10 18:19:04 UTC
From:
To:
Dear Maintainer,

   * What led up to the situation?
   I attempted screen sharing in Zoom on a fresh install of Debian 12
   with KDE Plasma under Wayland.

   * What was the outcome of this action?
   KDE window allowed me to pick a screen or a window to share. It did
   not show previews. Upon selection the error was shown:
       KDE Portal Integration
       Failed to start screencasting
       Failed to create PipeWire context

   * What outcome did you expect instead?
   I expected the screen/window to be shared.

I tested screen capture in
https://mozilla.github.io/webrtc-landing/gum_test.html to make sure this
isn't a Zoom issue. Same outcome.

After some searching and digging the issue appears to be that pipewire
was not installed.

This fixed the problem:

sudo apt install pipewire
systemctl --user start pipewire

pipewire should be a dependency of plasma-desktop or one of it's
dependencies so this works out of the box.

Marking this as important since screen sharing is a must for a desktop OS
in business.
#1043424#10
Date:
2023-08-10 19:45:41 UTC
From:
To:
severity 1043424 normal
thanks

Hi!

I can agree that something in Plasma should depend/recommend xdg-desktop-
portal-kde.  But neither KDE+Wayland nor pipewire are defaults for Debian, so
users wanting to use them are expected to do some work. Granted, it would be
just awesome if no action would be required, but that is sadly not the case
here. I am so downgrading this bug to normal.

I would argue that this bug should be retitled to only care about the xdg-
desktop-portal-kde package.

Kinds regards, Lisandro.
#1043424#17
Date:
2023-08-10 22:08:35 UTC
From:
To:
KDE is an option you can pick in the installer, which is what I did. It
shouldn't require a user to know what other dependencies to install
after with apt. Even if installing plasma-desktop later with apt it
should have all the dependencies.

xdg-desktop-portal-kde was originally installed. pipewire wasn't.
#1043424#22
Date:
2023-08-11 01:49:30 UTC
From:
To:
Hi!

Right, but with that you should get X11 by default, not wayland.

xdg-d-p-kde: cool! That's pretty good to read!
pipewire: expected, not the default sound subsystem for bookworm.
#1043424#27
Date:
2023-08-12 05:29:49 UTC
From:
To:
Screen sharing under KDE uses pipewire. That makes KDE dependent on
pipewire, regardless of what the default is. Default desktop environment
is Gnome, that doesn't mean other environments shouldn't install their
dependencies.