What is Quartz Extreme (Mac) and why no external monitor rendering support?

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Camtasia's Mac requirements include this statement, "Quartz Extreme support (rendering is not supported on external USB monitors)"

What is Quartz Extreme?

Why won't the new version support rendering on an external monitor?

Will they change this later?
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training

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Posted 2 years ago

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Jack Fruh, Champion

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Note  that the requirement specifically calls out USB connected external monitors, these are very rare.
Monitors connected via Thunderbolt, displayport and HDMI are all natively supported by the mac.

There are a few companies that have made USB to video adaptors, these require special drivers to be installed and are not 'natively' supported by the mac.

I can tell you that I regularly run multiple external monitors and have no trouble with camtasia.
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training

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Thanks Jack. I guess the "USB" part didn't register with me. All's good now.