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lchluk002 Author

Level 1

4 points

Black border around external display.

I have a 2021 14-inch MacBook Pro (M1 Pro chip). I am connecting it to a Prism+ W280 Ultra display - a 4k 28-inch display. I am using the HDMI cable that came with the display to connect to it (HDMI to HDMI). I am using it as an extended display at a resolution of 3840 x 2160 (4k).

For some reason there is a black border around the display (where there should be pixels). How can I get the picture to cover the entire display?

TIA.

Here are screenshots of the setup:

MacBook Pro Apple Silicon

Posted on Dec 16, 2022 12:13 AM

Black border around external display.

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