recently I got a touchscreen ELO ts-1515, I'm using Gentoo in a machine with an Intel Atom processor, and my desktop manager is LXDE, I get install X11 server and drivers without any problem, the problem is the touchscreen.

The touchscreen only works aprox. 80% of total area, (the area working is located in the center of touchscreen), the second problem is the y axis are inverted (I resolve this with xinput).

I read the wiki of Gentoo and ELO touchscreen, and say execute X -configure, When I make this, in the end of command mark error and says "number of created screens does not match number of detected devices".

  • And you made sure that 100% of the total area of that screen works on another OS for instance i.e. that the hardware is not defective? You're using this 2008 wiki? So that's the USB model? There is indication these screens can misbehave, have you contacted the manufacturer? Please update your Q accordingly. – user44370 Nov 6 '14 at 0:26
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    really i don't be sure, yesterday i probe with mint live cd and the behaivor as equal, maybe i can get other touchscreen i put here my results – APRocha Nov 6 '14 at 19:06
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    well, today i get a windows, and the problem not is the touch, with windows, the tocuscreen work correctly – APRocha Nov 7 '14 at 16:32
  • What input driver do you use: libinput or evdev? – g4s8 Feb 2 '19 at 19:30

In the pas i try install and configure X11 and desktop manager but i don't get any result, well, finally i get a good behavior of touchscreen, i use the next command:

  xinput set-int-prop 11 "Evdev Axis Calibration" 32 440 3600 480 3500

i discover the values by accident, when i write 300 in xmin instead 30(usually see values under 200), and so i make experiments with different values in every field and this values are the best (i believe).

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