Question: macbook turns on but doesn't work
Macbook air 13" early 2015
So a couple of weeks ago i noticed that suddenly some black or white thin horizontal lines would show up on my screen for a second and they would be just completely random.
Turns out that today i connected my mac to a projector with a vga adapter. It worked fined and after i finished my presentation i just disconnected the adapter and closed my mac.
10 minutes later I picked up my mac and opened it and the screen was black. So I did a hard restart and still nothing happened just that the screen became a little brighter like on any normal restart unless that the apple logo didn't showed up.
When i got home I connected it to my tv with a thunderbolt to hdmi cable and it worked. Did a pram reset, smc reset and basically everything i have read on the internet but i still can't fix it. Please any help would be very appreciated.
Update: today the macbook won't even work on a external display. When turning it on the screen becomes brighter and the apple logo on the back is also brighten.