well, good news is that the bug went away when I installed mint sarah http://blog.linuxmint.com/?p=3038 . their release specifically talks about improvements to the trackpad.
-- 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/1454473 Title: In Ubuntu 15.04, simply moving the mouse via touchpad scrolls the window To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-input-synaptics/+bug/1454473/+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