From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: 2QdxY4RzWzUUiLuE@potatochowder.com Newsgroups: gmane.emacs.help Subject: Re: issue with keyboard input for multiple keys Ctrl-b / nkey rollover? Date: Sun, 2 Aug 2020 06:45:52 -0500 Message-ID: <20200802114552.GA10878@scrozzle> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35974"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Aug 02 13:46:50 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 1k2CS2-0009Gm-JI for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 Aug 2020 13:46:50 +0200 Original-Received: from localhost ([::1]:47978 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k2CS1-0004Tx-Lg for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 Aug 2020 07:46:49 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58842) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <2QdxY4RzWzUUiLuE@potatochowder.com>) id 1k2CRI-0004To-VY for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 07:46:05 -0400 Original-Received: from www458.your-server.de ([136.243.165.62]:54792) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <2QdxY4RzWzUUiLuE@potatochowder.com>) id 1k2CRF-0004UX-Mw for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 07:46:04 -0400 Original-Received: from sslproxy01.your-server.de ([78.46.139.224]) by www458.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from <2QdxY4RzWzUUiLuE@potatochowder.com>) id 1k2CR8-0007L4-Lp for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 13:45:54 +0200 Original-Received: from [2600:1702:25c0:3d50::2f] (helo=localhost) by sslproxy01.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <2QdxY4RzWzUUiLuE@potatochowder.com>) id 1k2CR8-0007Wr-28 for help-gnu-emacs@gnu.org; Sun, 02 Aug 2020 13:45:54 +0200 Mail-Followup-To: help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: X-Authenticated-Sender: 2QdxY4RzWzUUiLuE@potatochowder.com X-Virus-Scanned: Clear (ClamAV 0.102.3/25891/Sat Aug 1 16:57:39 2020) Received-SPF: pass client-ip=136.243.165.62; envelope-from=2QdxY4RzWzUUiLuE@potatochowder.com; helo=www458.your-server.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/02 07:45:54 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] 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, 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:123615 Archived-At: On 2020-08-02 at 03:59:33 -0700, Alan Davis wrote: > I have left behind at least three different keyboards due to a problem > when, especially backing up a character at a time, in Emacs, and perhaps in > bash. The following are the most recent keyboards with this problem: > > - Microsoft Surface bluetooth keyboard > - A mechanical keyboard with Nkey rollover > > I quit using the first of these due to this problem, replacing it with the > mechanical keyboard. I hoped the Nkey rollover would mean key chords like > Ctrl-b would work. Unfortunately the results are unsatisfactory. Often > when editing with emacs (truth be told I don't remember whether this is the > case with a bash console), I have to repeat the keychord twice before the > cursor will move. So if I want to back up two characteris, I need to type > Alt-b 4 times to move the cursor back 2 positions. > > I had hoped that NKey rollover would eliminate this problem. That is not > the case: the mechanical keyboard has this same problem. > > I am afraid I have not nailed down the specific instances when this > occurs. It has occured to me that this may happen with some terminal > emulators but not on others. Even this seems to be inconsistent: in fact > just now I tried this key combination in an emacs window, and it worked > fine. Even if you can't nail down the specific instances when this occurs, a few examples of when it does (or has) or doesn't (or hasn't) would help someone help you. You said "bash" and "terminal emulator," so I could probably assume Linux or BSD, but what OS(es), desktop environment(s), and/or window manager(s) are you running or have you tried? What made you think that n-key rollover would make a difference? Are you running assistive software, or some sort of uncommon hardware or I/O subsystem? Is it some kind of virtual machine?