Mac Air M2 Display Games
My Mac is showing green line on the edge of the screen. The green line is visible sometimes and gone sometimes. This is causing me a lot of frustration. I don't know what the issue is.
MacBook Air, macOS 12.6
Either you are using a background picture that doesn't fill the screen, or you have modified the display's resolution settings. Try using another background picture. Check to make sure macOS is configured to use a standard display resolution for the laptop's built-in display. Check the "Display" settings in the System Preferences.
Change your Mac display’s resolution - Apple Support