Gtk couldn't be initialized.

[EyesWithoutFace]

System Details

• OS: Nobara 41 Gnome Edition
• GPU: AMD 7900XTX
• CPU: RYZEN 9 7950X
• RAM: 64GB
• OTHER DES: GNOME

Issue Details

Can't use the nobara-sync GTK app as GTK couldn't initialize. Here is the snippet of the exact error:

Traceback (most recent call last):
  File "/usr/bin/nobara-updater", line 1485, in <module>
    main()
    ~~~~^^
  File "/usr/bin/nobara-updater", line 1095, in main
    update_window = UpdateWindow()
  File "/usr/bin/nobara-updater", line 1109, in __init__
    super().__init__(title="Update System")
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.13/site-packages/gi/overrides/Gtk.py", line 508, in __init__
    raise RuntimeError(
        "Gtk couldn't be initialized. "
        "Use Gtk.init_check() if you want to handle this case.")
RuntimeError: Gtk couldn't be initialized. Use Gtk.init_check() if you want to handle this case.

I can't seem to replicate this issue on Gnome, as it works fine there and all other gnome apps work just fine as well.

[mmstick]

You'll have to file that with Nobara. We don't package this software.

[EyesWithoutFace]

You'll have to file that with Nobara. We don't package this software.

Already contacted them about it, they told me to contact you haha… Is there a test I can run to ensure gtk3 is working in cosmic in general for you just to verify? When I installed cosmic there was a conflicting adw-gtk3-theme which I overwrote. Could that be causing it?

[mmstick]

GTK3 is well supported. The GIMP system package is a GTK3 package, and there are many others that still use GTK3. Also, when the GTK theme support is enabled, the GTK3 theme should be set to adw-gtk3{,-dark}.

[GloriousEggroll]

It was caused by this:

#1418

Worked around it using xhost for now. I have found another odd issue though (unrelated, seems a bug in cosmic-files). will open separate bug.

[mmstick]

sudo -EH would likely be more convenient. But nobara-sync should not be using root for its GUI process.