From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750748AbVILPxK (ORCPT ); Mon, 12 Sep 2005 11:53:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750750AbVILPxK (ORCPT ); Mon, 12 Sep 2005 11:53:10 -0400 Received: from perpugilliam.csclub.uwaterloo.ca ([129.97.134.31]:14045 "EHLO perpugilliam.csclub.uwaterloo.ca") by vger.kernel.org with ESMTP id S1750748AbVILPxJ (ORCPT ); Mon, 12 Sep 2005 11:53:09 -0400 Date: Mon, 12 Sep 2005 11:53:08 -0400 To: Giuseppe Bilotta Cc: linux-kernel@vger.kernel.org Subject: Re: 2.6.13 psmouse: problem wheel detection: AlpsPS/2 versus ImPS/2 Message-ID: <20050912155307.GF28578@csclub.uwaterloo.ca> References: <200509021327.j82DRJK18844@irsamc.ups-tlse.fr> <20050902141546.GA11506@midnight.suse.cz> <1n8tk1hehvpm0$.1leys9nqogxod$.dlg@40tude.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1n8tk1hehvpm0$.1leys9nqogxod$.dlg@40tude.net> User-Agent: Mutt/1.5.9i From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 10, 2005 at 11:29:52AM +0200, Giuseppe Bilotta wrote: > I have a Dell Inspiron 8200. Like the Latitude of the OP, it has the > DualPoint ALPS and a PS/2 port, so I can help testing, if needed. > > I can also get my hands on a 4-button Logitech Trackball (no > scrollwheels or anything, just four buttons), if it can help the > testing. > > One thing that I noticed under 'the other OS' is that, when an > external PS/2 device is inserted and then disconnected, the 'internal' > ones (keyboard, touchpad) seem to lose sync. It has been some time > since I tried it the last time, so I should probably check again to > see if the extended protocols do work, somehow. I have always been under the impression that PS2 devices were not hotplugable at all. Many machines stop responding on the ps2 mouse port if you disconnect and reconnect the mouse. KVMs of course cause lots of trouble too for that if they don't somehow fake the mouse still being present. It works on some systems, but in my experience you don't touch ps/2 mice with the power on. Len Sorensen