From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272771AbTG3Fpv (ORCPT ); Wed, 30 Jul 2003 01:45:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272773AbTG3Fpv (ORCPT ); Wed, 30 Jul 2003 01:45:51 -0400 Received: from vladimir.pegasys.ws ([64.220.160.58]:23059 "EHLO vladimir.pegasys.ws") by vger.kernel.org with ESMTP id S272771AbTG3Fpr (ORCPT ); Wed, 30 Jul 2003 01:45:47 -0400 Date: Tue, 29 Jul 2003 22:45:43 -0700 From: jw schultz To: Linux kernel Subject: Re: Turning off automatic screen clanking Message-ID: <20030730054543.GG9836@pegasys.ws> Mail-Followup-To: jw schultz , Linux kernel References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.27i X-Message-Flag: The contents of this message may cause drowsiness. Do not operate heavy machinery. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 30, 2003 at 11:16:05AM +0900, Miles Bader wrote: > "Richard B. Johnson" writes: > > No. There are no ANSI, nor DEC nor AT&T nor IRIS, nor IBM, nor any > > other terminals that have screen-blanking capabilities. > > Yes there are. I guess you never used any of them. > > [The brand that immediately comes to mind is Wyse, but I seem to recall > the H29 having this capability too...] I can't speak for the others but according to my Wyse 50 manual the S.SAVER feature in the field level 4 menu has a default value of OFF. My recollection is that this was common among the VDTs which suffered considerably from burn-in. Many of the later models had the feature but it was a hardware setting controlled via a configuration menu or a dip-switch. You want the setting to persist across logins and power cycling. It really should be disabled in-kernel by default. The distribution RC scripts would as a default then enable it late in the boot process. In a server setting where it isn't wanted the admin should know enough to prevent its being enabled. I too have been bitten by this on servers where the console display is either powered down or disconnected for months at a time. The error messages leading to the hang may be in the display buffer but they can't be seen. -- ________________________________________________________________ J.W. Schultz Pegasystems Technologies email address: jw@pegasys.ws Remember Cernan and Schmitt