example of the screen flickering in YT
I upgraded to ubuntu 18.10 a couple of days ago and noticed that my screen flickered with some YT videos. I changed to the proprietary nvidia drivers (1060 series) and that didn't solve the problem.
I have a dual screen setup (my TV) and the YT videos played normally on my TV but not on the monitor, besides YT I have problems with some webs e.g. https://www.smashwords.com/shelves/category/1 but if I scroll down a couple of lines the monitor works again.
There seems to be some config problem with my monitor, it worked ok before the upgrade (W10 and ubuntu 16.04)