Em link
O clique direito pode ser corrigido com o patch do xserver-xorg-input-synaptics pacote com os seguintes passos (fonte):
mkdir tmpbuild
cd tmpbuild/
wget http://david.hardeman.nu/synaptics-suse-patches.tar.bz2
apt-get source xserver-xorg-input-synaptics
cd xserver-xorg-input-synaptics-1.3.99+git20110116.0e27ce3a/
cd debian/patches/
tar xfj ../../../synaptics-suse-patches.tar.bz2
ls -1 2*.patch >> series
cd ../../
sudo apt-get build-dep xserver-xorg-input-synaptics
dpkg-buildpackage -us -uc -rfakeroot
sudo dpkg -i ../xserver-xorg-input-synaptics_1.3.99+git20110116.0e27ce3a-0ubuntu12_amd64.deb