TTX TouchScreen on Ubuntu 9.04

Had some trouble setting up the TTX touch screen (which uses an eGalax touch sensor). It seemed to be plug and play (it uses USB connection) but the x-axis was flipped. Luckily I found this handy post:

Short instructions:

  • edit /usr/share/hal/fdi/policy/20thirdparty/50-eGalax.fdi and add a “merge key” line with the others like this:
    <merge key=”input.x11_options.SwapX” type=”string”>1</merge>
  • run Administrator -> Calibrate Touchscreen
  • hit Enter, then tap the X’s, but swap the left and right. That is, tap them in this order:
    • top right
    • top center
    • top left
    • middle right
    • middle center
    • middle left
    • bottom right
    • bottom center
    • bottom left
  • Restart and it should work!

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