bug#49997: 27.2; idle-time reset when switching desktop-page

[Eli Zaretskii]

> From: Peter Münster <pm@a16n.net>
> Cc: larsi@gnus.org,  49997@debbugs.gnu.org
> Date: Mon, 16 Aug 2021 17:51:43 +0200
> 
> > Can you tell what is "serial 18" in our xterm.c nomenclature?
> 
> I don't know. But according to XEvent(3) it's the "number of last
> request processed by server".

Thanks.  So that won't help.

> > IOW, what does this ConfigureNotify report to us?
> 
> It seems to me, that it reports a new position: (3843,2334)
> The position changes, because the viewport changes, and so the origin
> (point 0,0) too.

Is there a way to detect that the origin changed?  If so, we could
perhaps teach Emacs that when the coordinates change due to the change
in origin, it isn't a move at all.