From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manoj Subject: Re: Lenovo X220 Touchpad + Trackpoint BIOS issue workaround ? Date: Tue, 05 Apr 2011 12:32:27 -0500 Message-ID: <4D9B522B.7080201@canonical.com> References: <4D9B2CD0.20404@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from adelie.canonical.com ([91.189.90.139]:35529 "EHLO adelie.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755425Ab1DERca (ORCPT ); Tue, 5 Apr 2011 13:32:30 -0400 In-Reply-To: <4D9B2CD0.20404@canonical.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov Cc: linux-input@vger.kernel.org Any thoughts on this one? Manoj Iyer Ubuntu/Canonical Hardware Enablement On 04/05/2011 09:53 AM, Manoj wrote: > The Lenovo X220 has a touch pad and a track point. I would like to get > some clues as to if there is any work around in the kernel for the issue > I am seeing below: > > Case 1: Touchpad and Trackpoint enabled in BIOS. > ================================================ > In this case the touchpad works correctly, but the trackpoint is not > detected at all. Some times after random number of reboots, the > trackpoint will start to respond approximately 15mts after X starts. But > the mouse will be detected as PS2 Generic Mouse. > > Case 2: Touchpad Disabled Trackpoint Enabled in BIOS > ====================================================== > In this case the trackpoint works as expected, and it is detected as > TPPS/2 IBM TrackPoint. > [ 9.675396] input: TPPS/2 IBM TrackPoint as > /devices/platform/i8042/serio1/input/input9 > > I suspect this is a BIOS bug? Is it possible to work around this in the > kernel? > >