First thanks to all.
@AmatCoder: thanks amat, I'll try to recompile with core utils and let you know, my instinct tells me that I have still problems, but I hope not.
I seen the same problem with wget without having the ability to reconnect with the reasons, now has it all makes sense.
@tinypoodle: my touchscreen is automatically recognized but is not calibrated.
Xinput_calibrator fails to recognize the device.
Xorg 7.6 does not work on my machine.
I hope that this program will make me able to calibrate the touchscreen, if it is simple, well!
(though, I consider that software it is not updated in a long time)