Sorry, not a duplicate but closely related. I think 308191 is what is making the problem apparent. Upstream appears to have recognized a similar problem. Some patches are available.
https://bugs.freedesktop.org/show_bug.cgi?id=21614 ** Bug watch added: freedesktop.org Bugzilla #21614 http://bugs.freedesktop.org/show_bug.cgi?id=21614 -- erratic cursor movement with multi touch https://bugs.launchpad.net/bugs/503944 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
