Gtk CRITICAL Error while trying to dockerise blueman

[thesuhas]

blueman: 2.02 BlueZ: 5.53 Distribution: Ubuntu 20.04 Desktop environment: Ubuntu 20.04 in a Docker Container on Pop OS 22.04

Hi, I am trying to dockerise an older version of blueman for a personal project of mine. I've installed all the required dependencies. When trying to run blueman-manager I am getting a Gtk-CRITICAL Error and I am unable to fix it. Attaching a screenshot for your reference.

[infirit]

Can you run it through gdb and get a backtrace. That should tell you where it faults.

[cschramm]

GTK cannot connect to the display server. I guess the errors are more or less expected under some circumstances then.

With just apt update; apt install blueman; /etc/init.d/dbus start; blueman-manager I get

Traceback (most recent call last):
  File "/usr/bin/blueman-manager", line 44, in <module>
    manager = Blueman()
  File "/usr/lib/python3/dist-packages/blueman/main/Manager.py", line 29, in __init__
    super().__init__(title=_("Bluetooth Devices"))
  File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 515, in __init__
    raise RuntimeError(
RuntimeError: Gtk couldn't be initialized. Use Gtk.init_check() if you want to handle this case.

Might be something else in older versions (I don't get what you mean with 2.02).

[thesuhas]

@cschramm I meant the 2.02 release of blueman

[cschramm]

There is no such release. Possibly 2.0.2 or 2.2.

[thesuhas]

@cschramm My bad, I meant 2.0.2

[cschramm]

I can confirm that error in that ancient version. In 2.0 the first call to Gtk.Builder.add_from_file causes a crash when there's no connection to the display server.

Not sure about your expectations here. blueman-manager is not expected to work without a display server.

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