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How should I configure a Magic Trackpad in 12.04 to

  • ignore my thumb at the bottom of the trackpad
  • change scrolling speed
  • change gesture functions (e.g. have three-finger tap = middle-click), if doing so is possible


I tried installing gsynaptics and using gpointing-device-settings, but its palm-detection and scrolling settings do nothing. (In fact, it shows scrolling as disabled, even though scrolling is enabled in System Settings > Mouse and Touchpad, and definitely works.)

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Incidentally, what settings is System Settings > Mouse and Touchpad actually changing? Something in the kernel, something in xorg, etc? – npt Jan 16 '13 at 1:43

Magic trackpad is basically a synaptic touchpad inside. Many parameters can be adjusted with synclient, for example,

synclient TapButton3=2

will set three-finger tap to the middle button.

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