MacBook A1534 Early 2015 12" with flickering lines
I have a MacBook which started to act strange when I upgraded to Catalina.
The screen shows scrambled lines, which started with a misaligned and green screen.
I've done all the resets, re-installations, downgrade to the previous OS, etc... without any success.
When I attach an external screen it all works fine, also at startup until I enter my password and press enter.
same as described here: https://discussions.apple.com/thread/251268846?login=true
Any suggestions?
MacBook