From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: Thinkpad Edge E220S trackpoint detection [was: Re: Lenovo X220 Touchpad + Trackpoint BIOS issue workaround ?] Date: Tue, 4 Oct 2011 23:56:28 -0700 Message-ID: <20111005065627.GB11260@core.coreip.homeip.net> References: <4E8ADD98.5000402@ubuntu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:62613 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752503Ab1JEG4d (ORCPT ); Wed, 5 Oct 2011 02:56:33 -0400 Received: by iakk32 with SMTP id k32so1470562iak.19 for ; Tue, 04 Oct 2011 23:56:33 -0700 (PDT) Content-Disposition: inline In-Reply-To: <4E8ADD98.5000402@ubuntu.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Chow Loong Jin Cc: linux-input@vger.kernel.org Hi Loong Jin, On Tue, Oct 04, 2011 at 06:19:04PM +0800, Chow Loong Jin wrote: > Hi Dmitry, > > I was reading through the linux-input thread (as mentioned in the subject) > regarding trackpoint detection, and noticed that it bore an uncanny resemblence > to the issue I'm currently having with my Thinkpad Edge E220S. I'll summarize > the situation on my E220S here, which I believe to be more or less the same as > the situation on the X220: > - Main device is a Synaptics touchpad/ > - Trackpoint exists as a passthrough device/ > - Trackpoint not detected until first resynchronization happens. > - Loss of sync can be triggered by moving the (undetected) trackpoint/ > > There seems to be a slight difference here though, in that I can't disable the > trackpoint or touchpad in my BIOS. > > I noticed that you requested for the full i8042.debug output, so I looked into > doing just that, using the following steps: > 1. rmmod psmouse > 2. echo 1 > /sys/module/i8042/parameters/debug > 3. modprobe psmouse > 4. wait for i8042 to settle and stop spewing messages > 5. move the trackpoint a bit. > 6. wait for i8042 to settle and stop spewing messages again. > > I have attached two snippets of /var/log/kern.log files to this email: > - modprobe-psmouse-until-settle.log: The log output between steps #3 and #4. > - touch-trackpoint-until-settle2.log: The log output between steps #5 and #6. > It looks like you forgot to actually attached the files... -- Dmitry