GNU bug report logs - #20875
24.4; gtk assertion failed when setting font via menu

Previous Next

Full log

Message #13 received at 20875 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Adam Connor <adamc55 <at> gmail.com>, 20875 <at> debbugs.gnu.org
Subject: Re: bug#20875: 24.4; Error reported when setting font
Date: Wed, 19 Aug 2020 13:15:45 -0400

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Adam Connor <adamc55 <at> gmail.com> writes:
>
>> Emacs did NOT crash. However, I noticed I get
>>       emacs _gtk_style_cascade_set_parent: assertion 'parent->parent == NULL'
>> failedemacs set default font
>> if I set the font to Droid Sans Mono Regular (12 point) in the menu dialog.
>>
>> Doubt this helps but this is in stock debian 8.1 running in virtualbox.
>
> (I'm going through old Emacs bug reports that unfortunately got no
> response at the time.)
>
> I've seen similar warnings myself, but I wonder whether they are
> internal Gtk warnings that we can do something about or not?
>
> Does anybody know?

From searching online for this error message, it seems like we might be
setting the parent twice somewhere:

https://mail.gnome.org/archives/gtk-app-devel-list/2000-September/msg00001.html

But grepping for "cascade_set_parent" in our src directory yields no
matches, not that I'm sure that helps much.

In any case, I tried setting the font to "Droid Sans" from the menu in a
GTK build, but I didn't see any warnings.  Is anyone still seing this?

Best regards,
Stefan Kangas

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.