Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757300AbXFOTfG (ORCPT ); Fri, 15 Jun 2007 15:35:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753599AbXFOTey (ORCPT ); Fri, 15 Jun 2007 15:34:54 -0400 Received: from sovereign.computergmbh.de ([85.214.69.204]:17180 "EHLO sovereign.computergmbh.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754980AbXFOTex (ORCPT ); Fri, 15 Jun 2007 15:34:53 -0400 Date: Fri, 15 Jun 2007 21:34:52 +0200 (CEST) From: Jan Engelhardt To: Phillip Susi cc: "R.F. Burns" , Lee Revell , linux-kernel@vger.kernel.org Subject: Re: PC speaker In-Reply-To: <4672C76D.5050008@cfl.rr.com> Message-ID: References: <75b66ecd0706120744g7cdb3392l6537b5c68c2d6b21@mail.gmail.com> <4672C76D.5050008@cfl.rr.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1220 Lines: 30 On Jun 15 2007 13:07, Phillip Susi wrote: > R.F. Burns wrote: >> However, over the past several weeks, the students have found more >> creative ways to abuse the PC speaker (outside of the OS.) The Powers >> that Be are asking that the PC speakers be disabled completely. With >> the small number of techs we have, it would be very impractical to go >> around to all systems and remove the PC speaker from each and every >> computer case. > > Now I am curious; how are they getting the pc speaker to make any sound with > the kernel module disabled? ioperm(), inb(), and outb() from userspace. Needs root, though. Or /dev/port, with write. Which comes to the question how they gained root. Perhaps live cd? In which case, the OP should, as recommended in this thread already, deactivate choosing boot devices, if that's possible. (Unfortunately, newer BIOSes with 'integrated bootmenu' with F8 or so, but I have not seen a way to deactivate _that_ menu.) Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/