On Fri, Aug 01, 2025 at 07:22:46PM +0200, Francesco Ariis wrote: > after updating my system to Debian trixie, gnubg started flickering. > I have filed a bug report [1].
> [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1110213 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 <niko...@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.
