From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752289AbbCWJLF (ORCPT ); Mon, 23 Mar 2015 05:11:05 -0400 Received: from mail.skyhub.de ([78.46.96.112]:56876 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752071AbbCWJLC (ORCPT ); Mon, 23 Mar 2015 05:11:02 -0400 Date: Mon, 23 Mar 2015 10:09:20 +0100 From: Borislav Petkov To: =?utf-8?B?0JvQtdC20LDQvdC60LjQvSDQmNCy0LDQvQ==?= Cc: linux-kernel@vger.kernel.org, Jiri Kosina , linux-input@vger.kernel.org Subject: Re: Logitech T650 is unusable since 3.19.0 Message-ID: <20150323090920.GA32082@pd.tnic> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org CC people. On Mon, Mar 23, 2015 at 11:21:02AM +0300, Лежанкин Иван wrote: > Hi, > > after update from 3.18.7 to 3.19.x my Logitech touchpad became almost > unusable. I use OpenSUSE Thumbleweed and tried both custom and vanilla > kernels. AFAIK, the problem may come with this changes: > http://lkml.iu.edu/hypermail/linux/kernel/1412.1/03246.html > > The symptoms are as follows. > > 1. The touch density is twice reduced: I have to make longer finger > motion for a smaller pointer movement. Possibly, it's because the KDE > starts to detect the touchpad as touchpad - and not the mouse as it > was before - and applies some preferences like the pointer > acceleration, etc. > > 2. Some gestures stopped to work: 3-finger swipe up, down, left, right > - so, there are no more "history back-forward", "SuperKey", and > "SuperKey + d". > > 3. Multi-finger tap detection is awful: it doesn't detect 3-finger tap > in 50%, it sometimes detects 2-finger tap instead of click+drag, or > when the second finger is slightly touching the surface. > > Can anyone make a suggestion what should I do, but to stay on an older > kernel version? > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. --