Forcing RGB mode on a monitor connected via HDMI in macOS

boring apple

Photo by Mitchell Y.

I recently bought myself a new monitor and discovered an annoying issue that affects all macOS users. If the monitor claims to support both colour spaces RGB and YCbCr , macOS always uses the latter, and it is impossible to change this behaviour in the system preferences. On some monitors, this problem manifests itself more strongly. On some, it is not at all noticeable. This problem exists when connecting either via HDMI or via DisplayPort .

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