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Does the length of HDMI 2.1 cable matter?

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wraper:

--- Quote from: tooki on June 15, 2022, 01:37:57 am ---Why would the higher resolution require it to be an active converter? (I use the terminology that it’s an “adapter” if it’s passive, “converter” for a device that actually converts from one signal type to another.)

--- End quote ---
IIRC with "type 1" passive adapter up to 165MHz pixel clock is possible. Which means up to 1920x1200@60Hz or 2560x1600@30Hz. Up to 300MHz pixel clock (2560x1600@60Hz or 4K@30Hz) is possible with passive "type 2" adapter. I'm not aware of standard which would allow higher pixel clock with passive adapter.

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