[SOLVED] Slack can't open browser on Fedora 35

[Ian Pilcher]

On 4/28/22 16:03, Ian Pilcher wrote:
> First time Flatpak user here, trying to use the Slack on Fedora 35 (now
> that they're retired the RPM).
> 
> I am able to run the app, and the Slack window appears.
> 
>> $ flatpak run com.slack.Slack
>> [2 preload-host-spawn-strategy] Running: /app/bin/zypak-helper child - 
>> /app/extra/lib/slack/slack --type=zygote --enable-crashpad
>> Initializing local storage instance
>> (electron) Sending uncompressed crash reports is deprecated and will 
>> be removed in a future version of Electron. Set { compress: true } to 
>> opt-in to the new behavior. Crash reports will be uploaded gzipped, 
>> which most crash reporting servers support.
>> [2:0428/155535.430906:ERROR:bus.cc(397)] Failed to connect to the bus: 
>> Failed to connect to socket /run/dbus/system_bus_socket: No such file 
>> or directory
>> [2:0428/155535.430968:ERROR:bus.cc(397)] 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
>> [2:0428/155535.508868:ERROR:bus.cc(397)] Failed to connect to the bus: 
>> Failed to connect to socket /run/dbus/system_bus_socket: No such file 
>> or directory
>> [2:0428/155535.508905:ERROR:bus.cc(397)] Failed to connect to the bus: 
>> Failed to connect to socket /run/dbus/system_bus_socket: No such file 
>> or directory
>> [2:0428/155535.508925:ERROR:bus.cc(397)] Failed to connect to the bus: 
>> Failed to connect to socket /run/dbus/system_bus_socket: No such file 
>> or directory
>> [50:0428/155535.514775:ERROR:sandbox_linux.cc(377)] 
>> InitializeSandbox() called with multiple threads in process gpu-process.
>> [2:0428/155535.526788:ERROR:browser_main_loop.cc(267)] Gtk: 
>> gtk_widget_add_accelerator: assertion 'GTK_IS_ACCEL_GROUP 
>> (accel_group)' failed
>> Gkr-Message: 15:56:05.513: secret service operation failed: 
>> org.freedesktop.DBus.Error.ServiceUnknown
> 
> When I click on the "Sign In to Slack" button, however, it never brings
> up a browser window in which I can log in.
> 
>> Failed to call portal: 
>> GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name is not 
>> activatable

After installing an xdg-desktop-portal implementation it works.

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