The screen of my ASUS q301LA starts blinking on and off like this when I use for more than 2 hours at a stretch. Things that would lead it to blink earlier are if it is connected to a power source and if I am using it to stream videos. (So heavy system performance in general). Tried contacting ASUS in hope of getting a resolution. As you can see the screen blinks even while the system is re installing the OS. So it doesn't appear to be a software issue to me,