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I'm fairly new to the raspberry pi world and I have a Planar PCT2235 22"touch screen that I would like to use with my raspberry pi4. The display works and the touch function sees the touch of my finger, but the pointer arrow and were it's press is registering on the monitor is about 3" away from my finger. Is there some kind of calibration that needs to be done or a driver that needs to be loaded. Thanks for any help you can provide.

  • The user manual does not mention how to calibrate the touch thing. Questions: (1) Do you have the user Guide for Rpi4B? (2) Where do you download the driver for Rpi4B? My learning Notes: penzu.com/p/7dbe461d – tlfong01 Oct 4 at 14:27
  • USB touchscreens generally do not require model specific drivers as the interface is standardized/generic. – goldilocks Oct 4 at 16:50
  • Have you done anything with xinput-calibrator to set the boundaries of your touchscreen? – Dougie Oct 4 at 21:09

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