4k monitor connecting to macbook pro can only get 2560 resolution

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4k monitor connecting to macbook pro can only get 2560 resolution

The macbook is MacBook Pro Retina, 13-inch, Late 2013. I am connecting to Dell P2715Q with mDP to DP cable.

It was working yesterday (display at 4k resolution), but today it suddenly doesn't work, can only display 2560x1440 at max, even clicking the scale with option, the max option is still 2560x1440.

Try restarting macbook and monitor. It doesn't work.

Is this due to some recent update, or something else might be wrong.

MacBook Pro 13″, macOS 10.15

Posted on Aug 4, 2020 8:05 PM

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Answer 1

Aug 4, 2020 8:33 PM in response to jenny2234

Your Mac supports a simultaneous maximum resolution up to 2560x1600 on two external displays via Thunderbolt (which is where you’re connecting the mDP plug). Alternately, it can support a single display up to 2560x1600 via Thunderbolt and a single 1080p display at up to 60 Hz, 3840x2160 at 30 Hz, or 4096x2160 at 24 Hz via HDMI.

So, use the HDMI port for 4K, but you will be limited to a slow refresh rate.

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4k monitor connecting to macbook pro can only get 2560 resolution

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