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

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Mon, 3 Oct 2022 19:39:20 +0200
>> Cc: 58164@debbugs.gnu.org
>> From: Jos de Kloe <kloe0040@planet.nl>
>> 
>> and after:
>> 
>> (gdb) n
>> 11985     if (FRAME_ICONIFIED_P (f))
>> (gdb) bt
>
> Thanks, but I meant "after" here:
>
>> Ffuncall (nargs=1, args=args@entry=0x7fffffffd258) at eval.c:3048
>> 3048      lisp_eval_depth--;
>
> That is, after you step over the "if (FRAME_ICONIFIED_P (f))" line and
> end up in Ffuncall.
>
> But I think I see the reason: indeed Emacs thinks that the frame is
> still iconified, so it does nothing and returns.
>
> So I guess some X event that was supposed to arrive and tell us that
> the frame is no longer iconified didn't arrive or something?  I hope
> Po Lu will be able to look into this soon.

Thanks, I will look into this bug.