Seems to me that is a driver version problem: package xserver-xorg-input-synaptics it's version 0.14.3 while package ksynaptics 0.2.4 wants version 0.14.4 at least:
[EMAIL PROTECTED]:~$ dpkg-query -W "xserv*synap*" xserver-xorg-input-synaptics 0.14.3+seriouslythistime-0ubuntu3 [EMAIL PROTECTED]:~$ dpkg-query -W "ksynap*" ksynaptics 0.2.4-2ubuntu2 [EMAIL PROTECTED]:~$ cat /var/log/Xorg.0.log|grep Synap (**) |-->Input Device "Synaptics Touchpad" (II) Synaptics touchpad driver version 0.14.3 (--) Synaptics Touchpad auto-dev sets device to /dev/input/event3 (--) Synaptics Touchpad touchpad found (**) Synaptics Touchpad: always reports core events (II) XINPUT: Adding extended input device "Synaptics Touchpad" (type: MOUSE) Synaptics DeviceInit called SynapticsCtrl called. Synaptics DeviceOn called (--) Synaptics Touchpad touchpad found see attachment for screenshoot of ksynaptics window -- synaptic touchpad: can't turn it off. https://launchpad.net/bugs/18874 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs