The attached patch doesn't completely eliminate the issue but should help quite a bit.
** Patch added: "appletouch-smoothness.patch" https://bugs.launchpad.net/mactel-support/+bug/381884/+attachment/4070225/+files/appletouch-smoothness.patch -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/381884 Title: Appletouch touchpad driver produces jumpy two-fingered scrolling To manage notifications about this bug go to: https://bugs.launchpad.net/mactel-support/+bug/381884/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp