bug#61667: 29.0.60; Failure to redisplay

[Dmitry Gutov]

On 24/02/2023 17:57, Eli Zaretskii wrote:
> > Cc: luangruo@yahoo.com, 61667@debbugs.gnu.org, gregory@heytings.org
> > Date: Fri, 24 Feb 2023 17:51:05 +0200
> > From: Eli Zaretskii <eliz@gnu.org>
> >
> > So, now, when does the delay happen?  I previously thought it happens
> > when the frame's title changes, but now you are saying it (and the
> > commit you mentioned) is unrelated, right?  Then what _is_ related?
> > Just the display-related activity in windows around Emacs?
>
> Also, if you use Emacs 25 with %b in frame-title-format, do you see
> the problem?  If you do, then double buffering is off the hook.

I haven't been able to repro with Emacs 25, even with custom 
frame-title-format.

Possibly because it starts with a 2x larger frame. But maybe due to 
double buffering.