Hey, i recently have this problem and i don't know whats going on. My monitor screen go completely dark but it still has power. The power button is still lit up blue and not orange. How come this is happening? when i switch to another monitor there is no problem. Is it the monitor problem or cable?
O okay sorry its just the yellow and blue light on LG so ja i thought maybe its that. Maybe its the resolution. Try turning that all the way down as well as your refresh rate, maybe that will fix the problem. Otherwise try installing the drivers again.