screen touch doesn't work,help please

Hello,

im french and sorry for my english.
my laptop is thnkpad X1 yoga, icore7 with screen touch.
I installed ubuntu 16.04.
The screen touch is not working.
i did this:

law@TX1CY:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Wacom Co.,Ltd. Pen and multitouch sensor Finger touch id=9 [slave pointer (2)]
⎜ ↳ Wacom Co.,Ltd. Pen and multitouch sensor Pen stylus id=10 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=13 [slave pointer (2)]
⎜ ↳ Wacom Co.,Ltd. Pen and multitouch sensor Pen eraser id=15 [slave pointer (2)]
⎜ ↳ TPPS/2 IBM TrackPoint id=16 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ Integrated Camera id=11 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=14 [slave keyboard (3)]
law@TX1CY:~$ xinput -set-prop 10 "Device Enabled" 1
law@TX1CY:~$ export TSLIB_TSDEVICE=/dev/input/eventX
law@TX1CY:~$ ts_calibrate
ts_calibrate : commande introuvable

The touch screen still doesnt work, who can help me please?

thanks