From: Eli Zaretskii <eliz@gnu.org>
To: "Daniel Martín" <mardani29@yahoo.es>
Cc: emacs-devel@gnu.org
Subject: Re: Default behavior of C-l causes flickering on TTY frames
Date: Sun, 12 Dec 2021 15:50:27 +0200 [thread overview]
Message-ID: <83lf0qnd98.fsf@gnu.org> (raw)
In-Reply-To: <m1o85m7xie.fsf@yahoo.es> (message from Daniel Martín on Sun, 12 Dec 2021 14:39:37 +0100)
> From: Daniel Martín <mardani29@yahoo.es>
> Date: Sun, 12 Dec 2021 14:39:37 +0100
>
>
> When Emacs runs on a TTY console, the common operation of recentering
> the window with C-l causes some unpleasant screen flickering most of the
> time. After some investigation, I see that this happens because the
> default value of the variable 'recenter-redisplay' is 'tty', which means
> that C-l clears and redisplays the screen.
>
> Is there a reason Emacs still does that by default on TTY frames?
Yes, it's to redraw a potentially garbled TTY display.
> Is the possibility of the screen becoming garbled so common these
> days (on TTY frames) that we pay the price of a redisplay on each
> C-l?
Yes.
But why don't you customize that variable if you dislike the redraws
and OTOH don't have the problem with garbled displays?
next prev parent reply other threads:[~2021-12-12 13:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <m1o85m7xie.fsf.ref@yahoo.es>
2021-12-12 13:39 ` Default behavior of C-l causes flickering on TTY frames Daniel Martín
2021-12-12 13:50 ` Eli Zaretskii [this message]
2021-12-12 14:51 ` Daniel Martín
2021-12-12 15:00 ` Eli Zaretskii
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