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Posted: **31.05.2023 09:52**

There's this error on CT startup when run on the latest Fedora Sway.

Sway is a Wayland compositor/window manager.

[user@pc ~]$ cudatext

(cudatext:2440): Gtk-CRITICAL **: 12:50:03.417: IA__gtk_widget_hide: assertion 'GTK_IS_WIDGET (widget)' failed

(cudatext:2440): Gtk-CRITICAL **: 12:50:03.417: IA__gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

Posted: **31.05.2023 12:47**

I can only report this to Lazarus forum (before the bugtracker I try the forum)
https://forum.lazarus.freepascal.org/in ... 523.0.html

Posted: **31.05.2023 14:53**

Questions by a lazarus user:
1) Do you have installed XWayland? AFAIK Fedora split XWayland into its own standalone package.

2) Have you disable Xwayland on Sway?

3) Have you set the GDK_BACKEND environment variable? Forcing `GDK_BACKEND=wayland` in the environment is a bad idea.

Posted: **01.06.2023 09:06**

Thanks for the answer.

1) "Package "xorg-x11-server-Xwayland-22.1.9-2.fc38.x86_64" is already installed."

2) No

3) No

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Error in Sway

Error in Sway