xorg is wrong anyway - this is a kernel bug. Fix was accepted upstream in the 3.15 kernel meaning it will be in Ubuntu 14.10. That seems like it qualifies as "Fix Committed" to me but I'll leave it to you to flip the switch (or not).
** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034132 Title: [MacBook2,1] Touchpad cursor moving in steps To manage notifications about this bug go to: https://bugs.launchpad.net/mactel-support/+bug/1034132/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
