most touchscreens need to be calibrated. There is usually a utility for it. It has been years since I did this and I don't remember the commands to start it. This is a general Linux issue, try googling your monitor model with "Linux calibration" to find instructions.
I appreciate the reply.. yeah its a calibration issue... the problem i believe is an incorrect driver and a mismatch with the touch matrix. I can run the canned calibration routine but no joy on the lower half of the screen.
I think Tormach have just packaged e driver or series of drivers that i need to modify. Not knowing Linux.. im kinda lost. I may just try to find somepne local to fix the issue and teach me enough to set it right again the next time an update is released.
Can you download Pop.os or Mint21 or Ubuntu 22 and boot from USB so you can test if it works with any of them, at least you would know it works under Linux then chase drivers.
Debian keeps most of the proprietary stuff out, so not good for testing hardware without fidling with it.
