From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Schmidt Subject: Re: PROBLEM: Changing speed on ThinkPad X1 Carbon 5th trackpoint causes "failed to enable mouse" Date: Sat, 30 Dec 2017 10:57:05 +0100 Message-ID: <20171230095705.GA1861@marax.lan.yath.de> References: <20171228091125.GA743@marax.lan.yath.de> <20171228142855.GA2007@marax.lan.yath.de> <20171229190529.GA2108@marax.lan.yath.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from karr.yath.de ([144.76.4.50]:46258 "EHLO karr.yath.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750879AbdL3J5N (ORCPT ); Sat, 30 Dec 2017 04:57:13 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Aaron Ma Cc: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org On Sat, Dec 30, 2017 at 02:43:16PM +0800, Aaron Ma wrote: > Please try: > $ xinput set-prop "TPPS/2 IBM TrackPoint" "libinput Accel Speed" -1 > > The last value of speed can be -1 to 1. Ah. That indeed changes the speed, thanks! However, please let me ask again: Isn’t the sysfs interface supposed to work, too? I’ve got my problem resolved for Xorg now, but about every article on the internet refers to the sysfs interface for changing the speed, cf. . I’m also fine with the assertion that Lenovo shipped a broken firmware, but I’d expect some warning in dmesg then and a reasonable fallback (to a regular PS/2 mouse?) then. Can we at least agree that there is a driver bug that ought to be fixed or a firmware bug that ought to be worked around? Thanks, Sebastian