Difference in contrast between Mac/PC

[Andrei Z]

I have both my Macbook Pro 2020 and the PC plugged into the same monitor (one via DisplayPort, the other via HDMI). The brightness/contrast settings are the same for both inputs. I ran calibration and profiling with the default settings (aside from using 90cd/m²) on both machines and then did the extended verification. The Mac one shows measured black luminance of 0.2599 cd/m² and contrast ratio of 346.2:1. The PC shows black luminance of 0.4483 cd/m² and contrast of 200.2:1.

Can someone explain the difference in contrast here? Is it just due to Mac/PC platform or something else?

[Vincent]

Check HDMI range on PC.

[Andrei Z]

Thanks, that was it!

[Author]

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