my laptop dell 15 7559 the screen goes black during working and speaker make noise if i was played song during working but the device still working the keyboard is lighted and i hear the cooling fans i bought it last august this problem apears randomly but i noticed this more when i am playing league of legends and happens with charger or not and i have to restart it from power button i updated nvidia driver but no solution this is three cases after restart
first : starts normal
second : black screen with orange and white led which is in front of lap
third : strange colors
forth : blue screen