Touchpad issue with kernel 4.13.x and 4.14

Hello,

i've recently bought a Lenovo Ideapad 320 15abr and after installing Linux, the touchpad doesn't work. I can use it for about 30 seconds, then it freezes. I've tried with Ubuntu and flavours and with Arch Linux, with different version of the kernel (4.13.x and rc 5 and 6 of the 4.14) but the problem persists. Is it a known bug? Is there a fix to this problem?

Thank you all for your patience. Greetings

    /Roberto Perico