It looks like Bryce Harrington put together a patch way back in 2010 to address this, or at least something closely related. Here's the link:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input- synaptics/+bug/327428/+attachment/1752254/+files/116_resolution_detect_option.patch Here's another patch from the same (duplicate) launchpad bug report: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input- synaptics/+bug/327428/+attachment/1368744/+files/synaptics.diff -- 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/621432 Title: Touchpad speed asymetrical (horizontal faster than vertical) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-input-synaptics/+bug/621432/+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