Bug#1110213: gnubg: flickering issues when using GUI
After asking in the gnubg mailing list, I think that gnubg is not in a
serviceable state when build with GTK3. The interface is broken, the
board has problems too, you cannot do simple actions (e.g. comparing two
moves at 4-ply).
I will copy what Philippe Michel (<philippe.michel7@free.fr>) wrote.
Il 06 agosto 2025 alle 21:23 Philippe Michel ha scritto:
> The bug report seems to show that gnubg was built with GTK3:
> ...
> ii libgtk-3-0t64 3.24.49-3
> ...
>
> The GTK3 code in gnubg is fairly immature. There were some possibly
> related fixes added recently (after 1.08.003 release), for instance:
>
> Author: Nikolas Nyby <nikolas@gnu.org>
> AuthorDate: Tue Jun 17 10:02:23 2025 -0400
> CommitDate: Fri Jun 20 20:26:51 2025 +0159
>
> Improve drawing code for GTK 3 animation
>
> These changes fix flickering of selected pieces being dragged, using
> the 2D board in GTK 3 (bug #65733).
>
> This is not necessarily what you experienced and there are other issues
> anyway.
>
> At this time, from the point of view of gnubg, the practical solution
> would be to build it with GTK2.
>
> I suppose it depends whether the Debian folks try hard to deprecate GTK2
> or if they just switched gnubg to GTK3 a bit casually, noticed that it
> builds fine, but didn't test the resulting application much.
Please rebuild with package with gtk2.
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