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MacBook Pro 13 inch 2018

Using Nucleum Adapter, HDMI to HDMI cable.

I connected my MBP to an external display (native resolution is 2560x1440), it detects it fine, and even recommends this resolution.

However, while my MBP switches to 2560x1440, the external display stays black. When I switch the resolution to 1080p, the external display starts working.

I don't think the HDMI cable is at fault because it came with the display and outputs 2560x1440 @ 60hz fine when I am using it with my Windows desktop.

I am using the display in mirrored mode (MBP and external display showing same screen).

Any help is appreciated. Thank you!

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