From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Davis Newsgroups: gmane.emacs.help Subject: Re: N-key rollover keyboards (was: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?) Date: Sun, 2 Aug 2020 10:47:33 -0700 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17154"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs , Yuri Khan To: Dmitry Alexandrov Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Aug 02 19:48:15 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 1k2I5n-0004O3-B9 for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 Aug 2020 19:48:15 +0200 Original-Received: from localhost ([::1]:53192 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k2I5m-0003ag-Db for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 Aug 2020 13:48:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39174) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k2I5M-0003aN-3L for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 13:47:48 -0400 Original-Received: from mail-io1-xd2e.google.com ([2607:f8b0:4864:20::d2e]:44910) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k2I5K-00073f-DD for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 13:47:47 -0400 Original-Received: by mail-io1-xd2e.google.com with SMTP id v6so21112495iow.11 for ; Sun, 02 Aug 2020 10:47:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=GvfcXI14Q0YZtiWYGKDhAqv6nT9kk1w3dtu5dqc44FI=; b=ejX3WWOzmHBH18Fs3vZUoOwfQdKN3KjuxbWR9cCoVwkmIC9A2N6eMvKqK4SZt3Oi6e PSdsi9oqduhQoulVcEpXflRzPmGC8byVqA6PQVnbgn9zt0HtHfjh9+V+okQYhDg8P2DK hCSXNeP8uemUUGaPy7Y5jfGBLlSY817QBc2Dd+tNrTvigY0Klz2Lp2JcB6g5/EODctKe RlbIFy5z+BjDQpnjPkuuLD6AshUuG65QXcY6Z1CycgDnz79YHBKy3rVJys5IFpbFU3lw dVaG1m1vrzWQrneN73SqZefWnHym6jlUosK4BV4v2N2AYWQdaHopcYbxh7JQRMznphNi FnJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=GvfcXI14Q0YZtiWYGKDhAqv6nT9kk1w3dtu5dqc44FI=; b=QUbnL2gqy61oHObUp6m9XVkZsoXQE8Pan4rJ8fsmw8XfYQ4odZIkB73mlnGG1PcBAX uUMrPkeX8ZgeG9Grcw2luNIKct2PCD27hE1gwsjqtHkkXveOoNLpjYvo6RKMa66Xvjay PxHKVkvZgA1W4zVjyqe/06PI+/OHlPG59bCuHTrVTk1p7UjhnYaleYP7cTeMfc7dC9th ykzfnqCvKytum63PVdvFvc2HChbKj2aJmZUvJjvMZoqXDQ/T09kA+iX6uVsFc61piXgA nYP9Onjw9kah4Hhe9xn1m0VZVX28Jdaj9V1B4F55kNkwfeQyTeNSzTAhtwFdUdqdROGb 0VFg== X-Gm-Message-State: AOAM531tCN1bsMZmNrJ4J0qJACH5GwSLujx+kpLgmQWKl0j72RxQMfSY dhpPiRg0d4n8Tdt09A9Vo8jvCHlJYsKDpWLQOkk= X-Google-Smtp-Source: ABdhPJwAZv4Ke+9cxPGAoxErgsmQHF3iOZWfdqeYiqQpIozxFhLEfAAV6H5P2XWmLkoiCCQTzcQ9xRPqw2NmxndTAfg= X-Received: by 2002:a02:70c3:: with SMTP id f186mr16063878jac.118.1596390463714; Sun, 02 Aug 2020 10:47:43 -0700 (PDT) In-Reply-To: Received-SPF: pass client-ip=2607:f8b0:4864:20::d2e; envelope-from=alan3davis@gmail.com; helo=mail-io1-xd2e.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Content-Filtered-By: Mailman/MimeDel 2.1.23 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:123623 Archived-At: On Sun, Aug 2, 2020, 10:04 Dmitry Alexandrov wrote: > Yuri Khan > FWIW, N-key rollover is not really about USB or protocols; it=CA=BCs abou= t > circuit of the keyboard. > > It does matter, when you reconfigure modifiers in a human-friendly way, > that is move one of the =E2=80=98controls=E2=80=99 (normally, the left on= e) closer to > =E2=80=98space=E2=80=99 =E2=80=94 under your thumb =E2=80=94 (ctrl:swap_l= alt_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. > 'ghosted'? Does this mean these apparently problematic combinations require N-key rollover? I am also using org-mode with several multiple-key chords. I cannot remember any instance where these have been a problem. Allan >