Can't share screen

[wjt]

On the development branch of Endless OS, which is a Wayland GNOME 41 session, this Jitsi Meet app cannot share the screen.

This is an Electron app. I don't know whether the Electron is new enough to support Chromium's WebRTCPipeWireCapturer flag, but if it is, it might be sufficient to just enable that.

[wjt]

By way of comparison, meet.jit.si in the Flathub version of Chromium can share my screen.

[modzilla99]

Works in the latest version with Gnome 42 on Fedora

[csett86]

@wjt have another try with yesterdays version 2022.11.0, others report that it now works fine (jitsi/jitsi-meet-electron#785)

Please launch it with wayland enabled, as described in the README: https://github.com/flathub/org.jitsi.jitsi-meet#wayland-support

[wjt]

I ran Jitsi with:

flatpak run --env=JITSI_USE_WAYLAND=1 org.jitsi.jitsi-meet

I joined a meeting. I pressed the Share button. Here is what I see:

I then Alt-Tabbed to and from this browser window a couple of times, and Jitsi Meet logged the following to the terminal:

[2:1122/093046.026323:ERROR:wayland_event_watcher.cc(36)] libwayland: wl_surface@60: error 0: gtk_shell::get_gtk_surface already requested

and then died with SIGTRAP.

If I run Jitsi without JITSI_USE_WAYLAND=1, I see the same results, except without the crash. I think telling Chromium to act as a Wayland client is a red herring – X clients can use the portal too.

It actually is possible to trigger the portal dialog, with or without JITSI_USE_WAYLAND=1, as follows:

1. On the broken popover above, click Share
2. The broken popover vanishes and the portal dialog appears:

3. Pick a window or screen to share in the portal dialog

So it is no longer true that I can't share the screen; the flow just looks super broken.

[maymage]

@wjt

The upstream issue is

https://bugs.chromium.org/p/chromium/issues/detail?id=1281200&q=pipewire&can=2&sort=-modified

Not much to be done here in the flathub repo.

[modzilla99]

Screensharing broke again. Anyone experiencing the same problem? I'm on Fedora 38.

[ananace]

Yeah, screensharing seems completely broken - at least on Wayland.
I've also tested with the XWaylandVideoBridge, and it still crashes if I open the sharing dialog.

[q-wertz]

Also not working on Manjaro with Gnome 44.5

[csett86]

Good news: The new release of the electron app 2025.2.0 should improve Wayland screensharing significantly, but it needs a new (yet unreleased version) of jitsi-meet. You can already test it on alpha.jitsi.net, and it will be available with the next jitsi-meet stable release

[q-wertz]

Tried again (having the flatpak version 2025.2.0). When the OS window sharing popup opens and I select a screen it closes for a moment and then reopens...

Console output in this step:

2025-02-14T17:14:36.113Z [AOT] <logInfo>:  [MAIN] hide aot handler
[2:0214/181436.230406:ERROR:shared_x_display.cc(39)] Unable to open display
2025-02-14T17:14:36.498Z [AOT] <logInfo>:  [MAIN] show aot handler
2025-02-14T17:14:36.498Z [AOT] <logInfo>:  [MAIN] sending aot-open state update to renderer process
2025-02-14T17:14:36.502Z [AOT] <logInfo>:  [MAIN] handling new aot window event
2025-02-14T17:14:36.507Z [AOT] <logInfo>:  [MAIN] received window created event
2025-02-14T17:14:36.507Z [AOT] <logInfo>:  [MAIN] setting aot window options
'loop->recurse > 0' failed at ../src/pipewire/thread-loop.c:425 pw_thread_loop_wait()
[2:0214/181446.217010:ERROR:shared_x_display.cc(39)] Unable to open display

Then the app crashes.

Do I need any special flags set?

Full console log:

$ flatpak run org.jitsi.jitsi-meet
Debug: Enabling Wayland backend
Deleting cache directory: /home/clemens/.var/app/org.jitsi.jitsi-meet/config/Jitsi Meet/GPUCache
[2:0214/181341.107040:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
LaunchProcess: failed to execvp:
xdg-settings
[2:0214/181341.456388:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
[2:0214/181341.456435:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
18:13:41.481 › APPIMAGE env is not defined, current application is not an AppImage
18:13:41.535 › checkForUpdatesAndNotify called, downloadPromise is null
[2:0214/181341.536915:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
[2:0214/181341.536987:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
[2:0214/181341.537032:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
[2:0214/181341.537072:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
[2:0214/181341.641830:ERROR:object_proxy.cc(576)] Failed to call method: org.freedesktop.login1.Manager.Inhibit: object_path= /org/freedesktop/login1: unknown error type: 
^[[A2025-02-14T17:14:16.199Z [AOT] <logInfo>:  [MAIN] received aot event aot-update-state
2025-02-14T17:14:16.199Z [AOT] <logInfo>:  [MAIN] handling aot-conference-joined state update from renderer process
2025-02-14T17:14:16.200Z [AOT] <logInfo>:  [MAIN] adding main window event handlers
2025-02-14T17:14:16.250Z [AOT] <logInfo>:  [MAIN] received aot event aot-update-state
2025-02-14T17:14:16.250Z [AOT] <logInfo>:  [MAIN] handling is-intersecting state update from renderer process
2025-02-14T17:14:16.250Z [AOT] <logInfo>:  [MAIN] hide aot handler
2025-02-14T17:14:20.381Z [AOT] <logInfo>:  [MAIN] show aot handler
2025-02-14T17:14:20.381Z [AOT] <logInfo>:  [MAIN] sending aot-open state update to renderer process
2025-02-14T17:14:20.384Z [AOT] <logInfo>:  [MAIN] handling new aot window event
2025-02-14T17:14:20.392Z [AOT] <logInfo>:  [MAIN] received window created event
2025-02-14T17:14:20.392Z [AOT] <logInfo>:  [MAIN] setting aot window options
2025-02-14T17:14:22.958Z [AOT] <logInfo>:  [MAIN] hide aot handler
2025-02-14T17:14:22.958Z [AOT] <logInfo>:  [MAIN] hiding aot window
2025-02-14T17:14:22.958Z [AOT] <logInfo>:  [MAIN] sending aot-hide state update to renderer process
2025-02-14T17:14:25.881Z [AOT] <logInfo>:  [MAIN] received aot event aot-update-state
2025-02-14T17:14:25.881Z [AOT] <logInfo>:  [MAIN] handling aot-close state update from renderer process
2025-02-14T17:14:25.882Z [AOT] <logInfo>:  [MAIN] removing main window event handlers
2025-02-14T17:14:25.895Z [AOT] <logInfo>:  [MAIN] closing aot window
2025-02-14T17:14:27.068Z [AOT] <logInfo>:  [MAIN] received aot event aot-update-state
2025-02-14T17:14:27.068Z [AOT] <logInfo>:  [MAIN] handling aot-conference-joined state update from renderer process
2025-02-14T17:14:27.068Z [AOT] <logInfo>:  [MAIN] adding main window event handlers
2025-02-14T17:14:27.104Z [AOT] <logInfo>:  [MAIN] received aot event aot-update-state
2025-02-14T17:14:27.104Z [AOT] <logInfo>:  [MAIN] handling is-intersecting state update from renderer process
2025-02-14T17:14:27.104Z [AOT] <logInfo>:  [MAIN] hide aot handler
2025-02-14T17:14:36.113Z [AOT] <logInfo>:  [MAIN] hide aot handler
[2:0214/181436.230406:ERROR:shared_x_display.cc(39)] Unable to open display
2025-02-14T17:14:36.498Z [AOT] <logInfo>:  [MAIN] show aot handler
2025-02-14T17:14:36.498Z [AOT] <logInfo>:  [MAIN] sending aot-open state update to renderer process
2025-02-14T17:14:36.502Z [AOT] <logInfo>:  [MAIN] handling new aot window event
2025-02-14T17:14:36.507Z [AOT] <logInfo>:  [MAIN] received window created event
2025-02-14T17:14:36.507Z [AOT] <logInfo>:  [MAIN] setting aot window options
'loop->recurse > 0' failed at ../src/pipewire/thread-loop.c:425 pw_thread_loop_wait()
[2:0214/181446.217010:ERROR:shared_x_display.cc(39)] Unable to open display
[2:0214/181448.643335:ERROR:screencast_portal.cc(367)] Failed to start the screen cast session.
[2:0214/181448.643356:ERROR:base_capturer_pipewire.cc(81)] ScreenCastPortal failed: 2
Error occurred in handler for 'jitsi-screen-sharing-get-sources': Failed to get sources.
Error occurred in handler for 'jitsi-screen-sharing-get-sources': Failed to get sources.

[csett86]

No special flags are required, but be sure to test with alpha.jitsi.net (for now), @q-wertz

[q-wertz]

Do you mean as Jisi server URL or install the alpha version of the flatpak?

First thing is not working.
For the second, I would need assistance on how to install the alpha version of a flatpak (didn't find a quick solution).

[csett86]

I meant the first thing, so using a meeting on alpha.jitsi.net. At least for me that worked well now with Wayland and Gnome (Ubuntu 24.04) and I could reliably share the screen and only the OS screen picker pops up, I select a screen or window, and it shares it without any second popup or crash. What environment are you using (desktop env, Gnome versions, ...)?

[q-wertz]

Tested again the alpha.jitsi.net in the jitsi flatpak.
Still crashing... :(

In the browser (Firefox, non-flatpak) everything works fine (also on the normal server)

Does this information help? If you need more let me know

~ $ lsb_release -a
LSB Version:	n/a
Distributor ID:	ManjaroLinux
Description:	Manjaro Linux
Release:	25.0.0
Codename:	Zetar
~ $ echo $XDG_SESSION_TYPE
wayland
~ $ uname -a
Linux hoth 6.6.75-2-MANJARO #1 SMP PREEMPT_DYNAMIC Mon Feb  3 17:53:46 UTC 2025 x86_64 GNU/Linux
~ $ gnome-shell --version
GNOME Shell 47.4

[csett86]

Thanks a lot for retesting, and this is enough information!