I am not sure what the hell is going on, neither I know where to ask. For me it looks like phenomenon, but it often ends up being completely explanatory.
I've discovered that if I place my SAMSUNG Galaxy S4 mini smartphone somewhere in the right of the DELL Inspiron (n series) touchpad, it turns off the monitor. I made sure the mobile devise has nothing turned on (such as wifi, bluetooth etc)
DETAILS: It turns off the laptop's monitor when it keeps vertical proximity to the hotspot(s) not larger than an inch.
Who has any idea what this is about ?