Subject: Re: bug#42655: 27.1; iconify-frame on a Lucid build may stuck the frame

From: Eli Zaretskii <[email-masked]>
Date: Thu, 06 Aug 2020 16:57:27 +0300

> Date: Thu, 06 Aug 2020 16:47:00 +0300
> From: Eli Zaretskii <[email-masked]>
> Cc: [email-masked], [email-masked], [email-masked],
>  [email-masked], [email-masked]
> 
> Thanks.  Looks like we never get the MapNotify event from X windows?
> Can you verify that, either by running the xev utility or by setting a
> breakpoint in xterm.c:handle_one_xevent when MapNotify is handled, and
> repeating the recipe?

And one more thing: does it help to disable double-buffering?
(NEWS.26 explains how to do that.)