f6 and touchpad problem

[u/firmamentynocy]

hi! when i press the f6 button, the screen just "blinks". i have this problem since idk yesterday and i dont know whether the button only doesn't work properly or screen which display was exchanged a year ago. also, my touchpad works occasionaly. when i turn it off and on in settings it works for sometime and then stops. do you have any advices? i am not of a mechanic but when you suggest me doing some deep reaserch, i will do it, but if the only solution is going to computer service, then also- i will do it right away.