For several months my laptop had a weird bug where every time I opened up the laptop the login screen had some horizontal strips that went away when I logged in. I was dumb and didn’t think that it was an issue and now that I don’t have warranty anymore it started doing it all the time.
I don't know what is causing it. My MacBook Pro Late 2011 did the same thing but it was the GPU that was failing and they replaced it because it had a recall for it. But as far as I know this version doesn't have a dedicated GPU.
I called Apple and they had me restart the machine and re-install the OS but it didn't help. I was told to visit a licensed Apple repair shop so I may do that. This machine has never had any water damage and it doesn't take any abuse because it's always in my room mostly on my desk or couch.
I don't know what is causing it. My MacBook Pro Late 2011 did the same thing but it was the GPU that was failing and they replaced it because it had a recall for it. But as far as I know this version doesn't have a dedicated GPU.
I called Apple and they had me restart the machine and re-install the OS but it didn't help. I was told to visit a licensed Apple repair shop so I may do that. This machine has never had any water damage and it doesn't take any abuse because it's always in my room mostly on my desk or couch.


