Always flickering once in login screen

Always flickering once in login mac pro M3, macos 15.1

When booting into the login screen of my Macbook Pro M3 14 inch 2024 (macos 15) , the screen always flashes once, i please Apple engineers help me slove it, this flickering is very ugly...

Posted on Oct 31, 2024 5:34 AM

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Posted on Oct 31, 2024 9:48 AM

As you start up your Mac, the screen resolution is a default and the driver used to draw the screen is a very simple one used only for startup screens.


When you enter your password and it is accepted, the screen will transition to its MacOS specified resolution, and the next screen will be drawn with the fully hardware-accelerated Driver. On some systems, this may cause a brief blank screen, which will be seen as a single flicker.


If that is what you are seeing, your Mac is working as designed.

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Question marked as Top-ranking reply

Oct 31, 2024 9:48 AM in response to Monmyn

As you start up your Mac, the screen resolution is a default and the driver used to draw the screen is a very simple one used only for startup screens.


When you enter your password and it is accepted, the screen will transition to its MacOS specified resolution, and the next screen will be drawn with the fully hardware-accelerated Driver. On some systems, this may cause a brief blank screen, which will be seen as a single flicker.


If that is what you are seeing, your Mac is working as designed.

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Always flickering once in login screen

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