How do I fix a Mac that is flashing. The background of safari and all my websites turned green and there are green lines across the screen as well as a black bar.
MacBook Pro 13″, macOS 10.15
Hi Macbookuser125,
We see that you are having some display issues with your Mac. You have come to the right place to receive assistance with resolving this issue. You can check out these troubleshooting steps that can help with isolating the cause of these issues:
Starting the Mac up in safe mode: How to use safe mode on your Mac
Safe mode will allow you to determine if this issue could be caused by some of the components in the software that is used to start your Mac up.
Test in test user account: How to test an issue in another user account on your Mac
Testing the issue in a test user account can help to determine whether this display issue is systemwide or just solely to a single user account.
Hope this helps out.
Best wishes!
MacBook Pro screen flashing and turned green with black bar
