From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Alexandrov Newsgroups: gmane.emacs.help Subject: Re: N-key rollover keyboards (was: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?) Date: Sun, 02 Aug 2020 20:04:48 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8868"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: help-gnu-emacs , Alan Davis To: Yuri Khan Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Aug 02 19:07:17 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k2HS8-0002EX-Nl for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 Aug 2020 19:07:16 +0200 Original-Received: from localhost ([::1]:40604 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k2HS7-0003iU-5e for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 Aug 2020 13:07:15 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60330) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k2HPu-0003hy-HR for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 13:04:58 -0400 Original-Received: from relay-2.mailobj.net ([213.182.54.5]:37405) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k2HPs-0001qN-Io for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 13:04:58 -0400 Original-Received: from v-1c.localdomain (unknown [192.168.90.161]) by relay-2.mailobj.net (Postfix) with SMTP id 4A0161209; Sun, 2 Aug 2020 19:04:51 +0200 (CEST) Original-Received: by mail-1.net-c.com [213.182.54.15] with ESMTP Sun, 2 Aug 2020 19:04:51 +0200 (CEST) X-EA-Auth: qNAk1kC8nCQmdoFv7U7W+BQdoATtzK3u3FQrsuWy7aEXiSdsUwQr7lsVNP8Vhlh5RqAXULDn3lmaDg7o7tEP8reU7tBWy3+H In-Reply-To: (Yuri Khan's message of "Sun, 2 Aug 2020 20:50:50 +0700") Received-SPF: pass client-ip=213.182.54.5; envelope-from=dag@gnui.org; helo=relay-2.mailobj.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/02 13:04:51 X-ACL-Warn: Detected OS = Linux 3.1-3.10 X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:123621 Archived-At: --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Yuri Khan wrote: > On Sun, 2 Aug 2020 at 18:00, Alan Davis wrote: >> I hoped the Nkey rollover would mean key chords like Ctrl-b would work. > N-key rollover does not matter at all. Modifier keys (Ctrl, Alt, Shift > and whatever OS-specific fourth key you use) are always reported > independently in the USB HID keyboard protocol. FWIW, N-key rollover is not really about USB or protocols; it=CA=BCs about = circuit of the keyboard. It does matter, when you reconfigure modifiers in a human-friendly way, tha= t is move one of the =E2=80=98controls=E2=80=99 (normally, the left one) cl= oser to =E2=80=98space=E2=80=99 =E2=80=94 under your thumb =E2=80=94 (ctrl:= swap_lalt_lctl setxkbmap(1) -option or equivalent). Then, on many ordinary keyboards few combinations, that are in use in Emacs= , are indeed get =E2=80=98ghosted=E2=80=99. And M-C-b with inner M- and C-= is a very likely variant. Two-key chords can never be affected, of course. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iIMEARYIACsWIQRSX35grYEsI2F1K7TIsPhUjufz5wUCXybyMA0cZGFnQGdudWku b3JnAAoJEMiw+FSO5/Pnn/0BAMaDrdaE8e2OskISR6hhsDcbCKADu7WLCtk/LcIq lYwGAP42tYB/rVJU+jBEwJa8KSwg2D3Jq0rRj63bfPNA2B1nBg== =A9O/ -----END PGP SIGNATURE----- --=-=-=--