I also added the config file suggested here to my xorg.conf directory and the problem also disappeared for me on my X230.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/1042069 Title: Jumpy Mouse Cursor using Thinkpad X230 Touchpad Status in “xserver-xorg-input-synaptics” package in Ubuntu: Confirmed Bug description: Really annoying bug! Trackpoint moves the mouse cursor smootly, when using the touchpad i have a jumpy cursor. (vertically it moves fine, horizontally it moves always 4 pixels at once). Please see the following demonstration video: http://www.youtube.com/watch?v=XUVRKFUsAmc ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xserver-xorg-input-synaptics 1.6.2-1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-11.11-generic 3.5.2 Uname: Linux 3.5.0-11-generic x86_64 ApportVersion: 2.5.1-0ubuntu2 Architecture: amd64 Date: Mon Aug 27 08:08:27 2012 InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120824) ProcEnviron: LANGUAGE= TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: xserver-xorg-input-synaptics UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1042069/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp