Suddenly red dotted line appeared on my MacBook Air m1. it disappeared on its own for few minutes then it came back again. any solutions ? by the time I'm uploading photos the line disappeared again.
[Edited by Moderator]
MacBook Air 13″, macOS 15.5
Pixel anomalies can come from a variety of causes. The graphics chip may getting the wrong commands from the software that is running, to the hinge of the display being overextended. The latter is often due to the cause of people either being unaware the resistence to putting back the display is deliberate to avoid overstretching the hinge and causing the cables in the hinge to fray, or bumps or drops where the display cables or connections get jarred, or power surges. About LCD display pixel anomalies for Apple products released in 2010 and later - Apple Support
If you see something reproducible, backup your data, and bring it in for service
vertical red dotted line on left corner of screen in MacBook Air m1
