Horizontal line flickering on Mac screen
Continue Horizonal Line and flickers
[Re-Titled by Moderator]
Original Title: Horizontal Line
iMac 24″, macOS 26.0
If this is an M1 iMac, you need to have it looked at by Apple or an AASP.
2 replies
Have a look at > Persistent horizontal lines appear on iMa… - Apple Community
Horizontal line flickering on Mac screen