bug#44180: 28.0.50; Emacs frames won't redisplay unless resized

[Eli Zaretskii]

> From: Eric Abrahamsen <eric@ericabrahamsen.net>
> Cc: 44180@debbugs.gnu.org
> Date: Fri, 23 Oct 2020 12:07:33 -0700
> 
> > Sounds like Emacs thinks those other frames are invisible or
> > iconified.  Emacs never redisplays such frames, for obvious reasons.
> 
> Thanks for the clue. I get:
> 
> (mapcar (lambda (f) (frame-parameter f 'visibility)) (frame-list))
> => (icon icon t)df
> 
> Whichever frame I've forced to be "live" always gets t, and the others
> become icons.

What do you mean by "become icons"?  Are they visible or aren't they?

> I haven't changed anything in my window manager config, and the i3
> package hasn't been updated since August. The only recent commit that
> looks like it could be at all relevant is 2c0cd90083.

And if you revert that change, does the problem go away?