xps15-9570-ubuntu-18.04

tweaks for xps 15 9570 on ubuntu 18.04

Chrome Video Lags

Online videos lags for some seconds in Intel mode.

Disable hardware accelartion in chrome://settings.

Last display line is green/rainbow on login screen

Kernel 4.18.4 solved this.

CPU / GPU undervolting

https://github.com/georgewhewell/undervolt