From owner-freebsd-questions@FreeBSD.ORG Thu Jun 21 18:52:02 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BB63216A41F for ; Thu, 21 Jun 2007 18:52:02 +0000 (UTC) (envelope-from modulok@gmail.com) Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.239]) by mx1.freebsd.org (Postfix) with ESMTP id 67E5513C45A for ; Thu, 21 Jun 2007 18:52:02 +0000 (UTC) (envelope-from modulok@gmail.com) Received: by nz-out-0506.google.com with SMTP id 14so574727nzn for ; Thu, 21 Jun 2007 11:52:01 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=E/CdzaiT+8SmUAhWTQ+J+N2Q5W9H7+kPDlzqM5nf18NnJhsDfpLapiW+bKJ3dx9qmlW72MFn4kYEtDwo0TA2Dy5/SiBNNcQJ9WHQR44hRdfSRHt9eF/k9uRkHgfXtV4P1Oi+SY6M7kZcSNm2+Zd2vrwLoqeSzoCyodUu/Ci5igQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=A8+aZ9g4OKnR10fdz6cVSDB+QMyw1RYX09PLG5+fuOJc186IylqCp7J2T+wFRVbbSXlBCeT9FuZWcaDuL6Uv6dAnSUBUhvO5nG+NCM1XaR/2+NTTSVg55jbrpHdS+MyNKvfagqH4mJWimtdKZ79leRa7Csz16kk0G5uASjpAf4M= Received: by 10.114.199.1 with SMTP id w1mr1990489waf.1182451920872; Thu, 21 Jun 2007 11:52:00 -0700 (PDT) Received: by 10.140.207.2 with HTTP; Thu, 21 Jun 2007 11:52:00 -0700 (PDT) Message-ID: <64c038660706211152j67689003y53fe9268617f7e2@mail.gmail.com> Date: Thu, 21 Jun 2007 12:52:00 -0600 From: Modulok To: "Manolis Kiagias" In-Reply-To: <467A6ED4.8050202@otenet.gr> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <467A6ED4.8050202@otenet.gr> Cc: "freebsd-questions@freebsd.org" Subject: Re: Pressing CTRL-ALT-SPACE on usb keyboard freezes FreeBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jun 2007 18:52:02 -0000 On 6/21/07, Manolis Kiagias wrote: > Hi all, > > This is a very weird symptom, noticed today for the first time. I have a > cheap Microsoft wireless keybaord with USB connection, on one FreeBSD > 6.2 release machine that acts as a lightweight server / occasional > desktop. While in the console (no X running) I accidentally pressed > CTRL-ALT-SPACE, received a message about USB controller error (sadly > cannot remember exactly) and the machine froze completely. Tried from > another machine but to no avail, it was completely frozen. After restart > I tried it a second time, again same results. > Changed some bios settings (disabled legacy USB support, that was > actually the only option for USB besides disabling it completely) and > checked a third time, still the same. > Now I know this has something to do with the USB but the motherboard is > not faulty. I don't know if it has to do with the particular keyboard (A > Microsoft conspiracy to bring the CTRL-ALT-DEL equivalent to FreeBSD ? > :) ) but was wondering if anyone else has had a similar problem (or is > brave enough to try...). I should also note that after pressing > CTRL-ALT-SPACE the green power led of the machine started blinking (like > sometimes motherboards do when entering standby or something, only there > is no option for this in BIOS). Motherboard is a cheap but brand new > ASROCK 478-based P4 motherboard. > > > Thanks > Manolis It's a BIOS feature known by man names including: Sleep state S3, Standby or Suspend to RAM. It is not a flaw, (arguably), and it's not specific to any particular kind of keyboard interface. You should be able to disable it in your BIOS's setup program. For example under my BIOS I would go: APCI >> ACPI Suspend Type >> (set from 's1&s3' to 's1') Now when I press ctrl+alt+space I get the following message: "acpi0: Sleep state S3 is not supported by BIOS." There are probably other was of disabling it as well. -Modulok-