Subject: bug#24091: 24.5; High CPU usage at startup while hidden

From: Eli Zaretskii <[email-masked]>
Date: Sat, 03 Sep 2016 20:45:32 +0300

> From: Noam Postavsky <[email-masked]>
> Date: Sat, 3 Sep 2016 13:29:39 -0400
> Cc: [email-masked], Aiken <[email-masked]>, 
> 	Clément Pit--Claudel <[email-masked]>
> 
> >> > I'd start by finding out why FRAME_ICONIFIED_P returns false.
> >>
> >> Well, it seems that's because Emacs never receives an UnmapNotify event.
> >> But that doesn't feel like I'm getting any closer to a solution...
> >
> > What events does Emacs get in that case?
> 
> Emacs is getting PropertyNotify, ConfigureNotify, MapNotify, and
> ReparentNotify events.

Does it work to turn this:

        if (FRAME_ICONIFIED_P (f) &&  ++tries > 100)
          break;

into this:

        if ((FRAME_ICONIFIED_P (f) || FRAME_VISIBLE_P (f)) &&  ++tries > 100)
          break;