Yeah this is due to the aspect ratio and scaling behavior of the mouse. This is a known bug.
** Changed in: xserver-xorg-input-synaptics (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/825548 Title: Touchpad cursor moves twice as fast horizontally after connecting an external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-input-synaptics/+bug/825548/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
