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Xvander01 Author

Level 1

8 points

2023 M2 Max MacBook Pro - HDMI Port Only Allowing 30 Hz Output

When I plug in my 4K Dell P2715Q monitor via HDMI, I only get 30 Hz. The monitor has two ports, DP and HDMI.

Cables tried:

USB-C (MacBook) to DP (Monitor) - 4K at 60 Hz works.

HDMI (MacBook) to HDMI (Monitor) with 2.1 cable - 4K at 30 Hz

What is slowing me down here? The MacBook HDMI? The monitor HDMI? The cable? My guess is that the monitor HDMI is old and not compatible with 2.1 speeds and outputs. Any guesses?

MacBook Pro (M2 Max, 2023)

Posted on Apr 2, 2023 7:26 PM

Best reply

kaz-k

Level 8

49,116 points

Posted on Apr 2, 2023 9:49 PM

Hi,

I just wonder if your HDMI monitor can handle 4K 60Hz.

Connect to HDMI from your Mac - Apple Support

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2023 M2 Max MacBook Pro - HDMI Port Only Allowing 30 Hz Output

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