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Weird Mac login screen display

This never happened to me before. I think this is not a critical problem or something, but it bothers me every time I open up my laptop (sleep mode). The resolution doesn't fit my screen and leave a black area. The login screen is fine if I boot up the laptop, but this sometimes happens when I open my laptop from sleep mode.Does anyone know how to fix this? I hope Apple will fix this in the next macOS update.User uploaded file

MacBook Pro, macOS Sierra (10.12.3), 13-inch, Mid 2012

Posted on Mar 5, 2017 3:21 AM

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Question marked as Top-ranking reply

Posted on Mar 5, 2017 4:07 AM

Go step by step and test.


1. Start up in Safe Mode. https://support.apple.com/kb/PH21875?locale=en_US

2. Repair Disk. https://support.apple.com/kb/PH22243?locale=en_US


3. Reset NVRAM/PRAM. http://support.apple.com/kb/PH18761


4. Reset SMC. Choose the method for “On Mac notebooks with non-removable battery”.


https://support.apple.com/en-us/HT201295

1 reply
Question marked as Top-ranking reply

Mar 5, 2017 4:07 AM in response to Jason Đạng

Go step by step and test.


1. Start up in Safe Mode. https://support.apple.com/kb/PH21875?locale=en_US

2. Repair Disk. https://support.apple.com/kb/PH22243?locale=en_US


3. Reset NVRAM/PRAM. http://support.apple.com/kb/PH18761


4. Reset SMC. Choose the method for “On Mac notebooks with non-removable battery”.


https://support.apple.com/en-us/HT201295

Weird Mac login screen display

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