I have a 2017 fully-loaded 15" MacBook Pro that seems to be having screen issues. Restarts, reseting the NVRAM, etc. hasn't fixed it. It doesn't seem to affect external displays, just the internal one. If the lid is almost closed than the screen is fine. However, once it is open it starts to show artifacts. This leads me to believe that it's hardware related. Has anyone come across this before? If I bring it to Apple for repair, how long do they typically take (I'm asking because it's my primary work machine and don't have a backup)? Any help or insight is appreciated!