[Bug 1950040] Re: Wayland Screensharing broken in Ubuntu 21.10

[Esokrates]

For Chromium via Flatpak I get

[304:456:1106/144346.048939:ERROR:base_capturer_pipewire.cc(206)] PipeWire stream state error: wrong resource type/version
[304:456:1106/144346.048966:ERROR:base_capturer_pipewire.cc(193)] PipeWire remote error: wrong resource type/version
[304:456:1106/144346.048990:ERROR:base_capturer_pipewire.cc(193)] PipeWire remote error: unknown resource 2 op:2
[304:456:1106/144346.048997:ERROR:base_capturer_pipewire.cc(193)] PipeWire remote error: unknown resource 2 op:3
[304:463:1106/144350.093931:ERROR:base_capturer_pipewire.cc(206)] PipeWire stream state error: wrong resource type/version
[304:463:1106/144350.093962:ERROR:base_capturer_pipewire.cc(193)] PipeWire remote error: wrong resource type/version
[304:463:1106/144350.093979:ERROR:base_capturer_pipewire.cc(193)] PipeWire remote error: unknown resource 2 op:2
[304:463:1106/144350.093985:ERROR:base_capturer_pipewire.cc(193)] PipeWire remote error: unknown resource 2 op:3

Firefox flatpak is also unable to share screen, despite the package
downgrade in #2.

So to sum up: Flatpak packages do not have functioning screensharing,
even with downgraded packages.

When not using Flatpak packages, the downgrade from #2 makes
screensharing work (tested with Firefox deb, Firefox snap, Google Chrome
deb).

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https://bugs.launchpad.net/bugs/1950040

Title:
  Wayland Screensharing broken in Ubuntu 21.10

Status in gnome-shell package in Ubuntu:
  New
Status in pipewire package in Ubuntu:
  New
Status in ubuntu-meta package in Ubuntu:
  New
Status in xdg-desktop-portal package in Ubuntu:
  New

Bug description:
  Freshly installed Ubuntu 21.10, screen sharing does not work with any
  browser, tested the following options:

  - Firefox snap
  - Firefox deb
  - Chromium snap
  - Chromium flatpak

  Steps to reproduce:

  1. Go to https://www.webrtc-experiment.com/Pluginfree-Screen-Sharing/#7325517390736006
  2. Select to share the whole desktop in the xdg-desktop-portal
  3. Notice the orange screen share indicator in Gnome-Shell but actually nothing is shared in the browser.

  This should be handled high priority since this is a critical feature
  during the pandemic.

  Filed against ubuntu-meta since I don't know exactly which package to
  blame, whether it's pipewire, xdg-desktop portal or some problem
  directely with mutter / gnome-shell, please reassign accordingly.

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