hyatt12 wrote:
I have vertical lines on my screen. they are all different colours and they are on the right side of my Mac. Ive restarted my Mac but nothing happened. Is there a way to fix it by myself or do I need to get it fixed professionally?
Plug into a external monitor if the issue persist externally it is a GPU fault, if the issue does not persist it point to a Display/Display assembly issue. These are both hardware.
Can you run the user Diagnostic...not as definitive as Apple's own AST2 (Apple Service Toolkit) back bench diagnostic, but may kick out an error code.
Use Apple Diagnostics to test your Mac
Use Apple Diagnostics to test your Mac - Apple Support
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment
Make an appointment for a "hardware issue"
Genius Bar Reservation and Apple Support Options - Apple
Outside the USA
https://locate.apple.com/country