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
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".