A couple of weeks ago I started noticing these weird black lines appearing on my screen every now and then (can't really say when). It never happened before. Last time it happened i took the screenshot below. I have a Lenovo Z580 Laptop with Intel graphics and Nvidia GT graphics. I use bumblebee and tlp for power management. I don't know if those apps have anything to do with it.
The glitches go away when i change the active window or move a window around on the screen. I have got the feeling that it might have something to do with chrome browser being open....
Does anyone have an idea how to get rid of this? It's not really a critical problem but it is really annoying. I appreciate any help.
Thanks a lot! :)