From: Eli Zaretskii <eliz@gnu.org>
To: Tomas Hlavaty <tom@logand.com>, Thomas Dickey <dickey@his.com>
Cc: 66128@debbugs.gnu.org
Subject: bug#66128: 28.2; visible-bell breaks setterm --inversescreen on
Date: Sat, 23 Sep 2023 08:38:53 +0300 [thread overview]
Message-ID: <83cyy95tzm.fsf@gnu.org> (raw)
In-Reply-To: <87h6nmvu61.fsf@neko.mail-host-address-is-not-set> (message from Tomas Hlavaty on Fri, 22 Sep 2023 22:18:14 +0200)
> From: Tomas Hlavaty <tom@logand.com>
> Cc: 66128@debbugs.gnu.org
> Date: Fri, 22 Sep 2023 22:18:14 +0200
>
> On Thu 21 Sep 2023 at 08:00, Eli Zaretskii <eliz@gnu.org> wrote:
> > Emacs just sends to the terminal the sequence defined by the "vb"
> > termcap capability. Is that not correct when the screen colors are
> > inverted?
>
> I do not know.
>
> > Is this perhaps the problem of the terminal?
>
> No, I get the same behaviour in xfce4-terminal and kitty, so this does
> not seem to be specific problem with the linux console.
>
> I think I wrote it in the bug report too, under an X based terminal:
>
> $ emacs -nw -Q --eval '(setq visible-bell t)'
>
> then press PgUp.
>
> > Btw, we always use the termcap's "vb", even when terminfo is
> > available; should we use the terminfo's "flash" instead?
>
> I do not know.
Thomas, could you perhaps help us out here? This is about sending the
"visible bell" sequence to a terminal after "setterm --inversescreen on".
The original report is:
$ setterm --inversescreen on
$ emacs -Q --eval '(setq visible-bell t)'
Then in Emacs do something that causes a bell, like try moving beyond
the buffer's end. This causes the Emacs background to become white,
i.e. the visible-bell somehow countermands the inversescreen state.
Can you think of any reason for this behavior? Do terminals honor
inversescreen when they perform the visible-bell function? Emacs just
sends the sequence reported by the "vb" termcap capability of the
terminal when the visible-bell is triggered.
Thanks.
next prev parent reply other threads:[~2023-09-23 5:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-20 20:14 bug#66128: 28.2; visible-bell breaks setterm --inversescreen on tom
2023-09-21 5:00 ` Eli Zaretskii
2023-09-22 20:18 ` Tomas Hlavaty
2023-09-23 5:38 ` Eli Zaretskii [this message]
2023-09-25 0:07 ` Thomas Dickey
2023-09-25 5:03 ` Eli Zaretskii
2023-09-25 8:07 ` Thomas Dickey
2023-09-25 8:50 ` Eli Zaretskii
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