From owner-freebsd-hackers Sun Dec 21 10:21:19 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id KAA16483 for hackers-outgoing; Sun, 21 Dec 1997 10:21:19 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from dan.emsphone.com (dan@dan.emsphone.com [199.67.51.101]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id KAA16478 for ; Sun, 21 Dec 1997 10:21:14 -0800 (PST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.8.6/8.8.6) id MAA10659; Sun, 21 Dec 1997 12:21:10 -0600 (CST) Message-ID: <19971221122110.33706@emsphone.com> Date: Sun, 21 Dec 1997 12:21:10 -0600 From: Dan Nelson To: psh1@cornell.edu Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: PS/2 mouse References: <199712210620.PAA19069@zodiac.mech.utsunomiya-u.ac.jp> <199712210803.AAA00800@wartch.rih.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.88.4e In-Reply-To: <199712210803.AAA00800@wartch.rih.org>; from "psh1@cornell.edu" on Sun Dec 21 00:03:46 GMT 1997 X-OS: FreeBSD 2.2-970701-RELENG Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk In the last episode (Dec 21), psh1@cornell.edu said: > >I understand that the PS/2 mouse, the motherboard and the psm driver > >have been working until lately. Have you ever plug or unplug the > >PS/2 mouse from the system while power to the system is ON? The PS/2 > >mouse interface and the keyboard interface appear to be very > >sensitive to noise and can be fried easily. I have known a couple of > >people around me who did unplug or plug the PS/2 mouse while the > >system is running and ruined the interface. > > Yep. I'll bet that was it. While we are on that subject. Are there > any devices you can safely plug in or out while running? I've hot-plugged serial mice without problems (I much prefer serial mice over PS/2 mice for exactly this reason), and external SCSI devices as well. -Dan Nelson dnelson@emsphone.com