GNU bug report logs - #57728
29.0.50; Emacs writes wrong glyph at the bottom-right corner of text terminals

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Message #104 received at 57728 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> suse.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Gerd Möllmann <gerd.moellmann <at> gmail.com>,
 gregory <at> heytings.org, 57728 <at> debbugs.gnu.org, akib <at> disroot.org
Subject: Re: bug#57728: 29.0.50; Emacs writes wrong glyph at the
 bottom-right corner of text terminals
Date: Mon, 12 Sep 2022 14:20:41 +0200

On Sep 12 2022, Eli Zaretskii wrote:

> But AFAIU, the bug actually shows that we somehow _do_ write there,
> although the display engine assumes we don't.  Right?

I think it is the other way round.  The display engine doesn't know that
sometimes the last character isn't written, and thus does not bother to
redraw it if the bottom line is scrolled up.

-- 
Andreas Schwab, SUSE Labs, schwab <at> suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

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