bug#58164: 28.1; keybinding C-z to suspend-frame in fvwm windowmanager seems to get lost after first use.

[Jos de Kloe]

Yes I can run emacs in gdb, but I am not sure what to look at. Can you 
suggest which variables I should inspect?

On 9/30/22 08:58, Eli Zaretskii wrote:
> > Date: Fri, 30 Sep 2022 08:45:33 +0200
> > Cc: 58164@debbugs.gnu.org
> > From: Jos de Kloe <kloe0040@planet.nl>
> >
> > This is the output I get:
> >
> >    <down> ;; next-line
> >    C-z  ;; suspend-frame
> >    C-z  ;; suspend-frame
> >    C-h l        ;; view-lossage
>
> So I guess the problem is in the X iconify_frame_hook, which is
> x_iconify_frame.  If you can step through that function in a debugger
> and see what's going on there, it might help.  Maybe Emacs thinks the
> frame is already iconified, and thus does nothing?
>
> Thanks.