On Sun, Feb 12 2012, Michael Albinus wrote:

> Look for the code which is embedded in
>
> #ifdef HAVE_DBUS
> #endif

Yes, the code is executed, when the notification windows expires.

The timer is reset on line 2849 in keyboard.c:

--8<---------------cut here---------------start------------->8---
 non_reread:

  if (!end_time)
    timer_stop_idle ();
  RESUME_POLLING;
--8<---------------cut here---------------end--------------->8---

I've found that with some `puts("xxx")' here and there. I tried gdb
(using ddd) but without success: the execution stops before I can set a
breakpoint...


> Maybe it's a timing issue.

I don't know. But I've prepared now a very simple test file and it would
be nice if you could try it please on your system and send me the
*Messages* buffer afterwards, just to compare it with mine.
You just need to save the attached file in /tmp and then run
"emacs -Q -l /tmp/notify.el"
The test takes just 2 seconds ;)

Thanks for your efforts!
-- 
           Peter