Touchpad Screen Turn Off Issue - Acer VN7-591G Laptop: USB Mouse Works, Driver Update

I warmly welcome. I have had a little problem with the touchpad on my laptop since yesterday.
When I touch the touchpad, the laptop screen automatically turns off, pressing any key, the screen turns on again.
The mouse is connected to a laptop via USB and works fine. The situation is quite unusual, because the touchpad only turns off the matrices in the laptop, and the laptop works normally.

I updated the drivers in the touchpad and looked for similar problems on the Internet, unfortunately I did not find anything similar.

I will be grateful for any help on this topic.

greetings

Sometimes pressing next to the touchpad on the palmrest doesn't happen the same?

In my case, the problem is the touchpad. I can press the case around the touchpad and nothing happens. I touch the touchpad anywhere, the screen turns off.

Well, look for SM for this model
Acer Aspire VN7-591G / and VN7-571G
- eDP matrix
- kbc NPCE285PA0DX
- HM86 chipset
-charger_switch. power supply of the BQ737
- platform (Wistron HADES_HBS)
* it should write on the disc: 14206-1 448.02W02.0011)


both signals go to kbc
TPDATA on pin 71
TPCLK on pin 72

I would check it on another system - e.g. linux live cd.

Good idea with this Live CD, and only the "spot" of damage will be credible.