Hello!
I have a problem with my laptop, so when I boot Kali Linux (Live or installed) my screen is flashing really fast, probably 10 flashes in 1 second, but when I star playing something like it moves, like a Youtube video, then everything is okej. So what could it be? When I try sudo apt-get install (differend nvidia drivers) and when I restart computer, it says something, thsat my user has crashed and I cannot log in.

Processor: Intel core i3 5010u 2.1GHz
Graphic: nVidia Geforce 940m 2GB
Intergreared graphic: Intel HD Graphics 5500
Ram: 4GB
Laptop Model: Asus X751L
Disk: 1TB HDD