From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heinz Wiesinger Subject: Re: T440s Synaptics clickpad: lost sync / KBC bad data Date: Mon, 23 Dec 2013 09:00:23 +0100 Message-ID: <2151662.dpCX0YOWBV@titania> References: Mime-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1564267.YldFb1JgXz"; micalg="pgp-sha256"; protocol="application/pgp-signature" Return-path: Received: from mx09lb.world4you.com ([81.19.149.119]:56571 "EHLO mx09lb.world4you.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750730Ab3LWIdH (ORCPT ); Mon, 23 Dec 2013 03:33:07 -0500 In-Reply-To: Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: "J. Domburg" Cc: linux-input@vger.kernel.org --nextPart1564267.YldFb1JgXz Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" On Sunday 22 December 2013 00:17:06 you wrote: > On Sat, 21 Dec 2013, Heinz Wiesinger wrote: > > J. Domburg spritesmods.com> writes: > > I'm experiencing exactly the same issue. I have my T440s now for a bit > > more > > than two weeks. No issues with the touchpad until today when it suddenly > > started acting up and I now see messages like these in dmesg > > > > Hi Heinz, all, > > Always good to know mine is not an isolated case, although in this case, I > wouldn't want to wish the issue on anyone else... > > FYI: I haven't resolved this issue yet, but I'm thinking this may be a > hardware issue after all. I decided to try and see if Win7 has this issue > too, and got myself an USB-stick to install it from. I didn't even get > past the installer. It gave me exactly the same issues as Linux has: > an erratic and finally hanging cursor when using the clickpad. > > I can understand Lenovo not wanting to support a Linux-only-issue so up > till now I haven't bothered them yet with my issue, but I can't see my > laptop not having mouse support in something as commonly used and > well-supported by hardware manufacturers as the Win7 installer. This > smells like an hardware issue to me, so I filed a warranty case today. > > If people here don't mind, I'll keep the list updated, if anything so > other people running into the same issues will have a reference and know > this isn't necessarily a kernel thing. > > Depending on how Lenovo reacts, I'll either have a working laptop or a > good reason to go soldering and probing the i2c bus. In any case, I should > end up with a solution I'd think :) although it'd be good if someone more > versed in the i8042 and related things would look over my shoulder in the > latter case. I ended up doing the same and just got their reply. They seem to be pretty adamant about it being a software issue, with the argument being if it were a hardware issue the clickpad would either be working fine or not working at all, but not on and off. Did you hear back from them as well? Grs, Heinz --nextPart1564267.YldFb1JgXz Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) iF4EABEIAAYFAlK37ZcACgkQp17cM+UqRsq3yAD/WpnvCVuIxCgUqbZJJ5M/VseP FMtKHITkrswDI7K/3OwA/iBQbvP035Qt4Y9AoRyUTpqNyPCq6vAocFZaxqPhmz1e =gSW/ -----END PGP SIGNATURE----- --nextPart1564267.YldFb1JgXz--