Club 3D CAC-1510-A to Apple Cinema 30"

4 replies

The adapter recognizes the monitor but it only comes on at low resolution. Anytime i select a higher resolution the screen goes black. This is an old cinema display so I thought hdcp off is the one i needed. Thanks in advance for any advice.

What source are you using? Laptop, GPU? What version USB-C ?

Are you connecting directly to the Thunderbolt 3 port of the MacBook Pro? The CAC-1510 cannot do 2560x1600 from a USB-C dock unless the dock has a built-in MST Hub.

The Apple 30" Cinema HD Display supports only two modes with specific timings:
[email protected] 49.306kHz 71.00MHz h(48 32 80 +) v(3 6 14 -)
[email protected] 98.529kHz 268.00MHz h(48 32 80 +) v(3 6 37 -)
(front porch, sync width, back porch)

Check the timings with SwitchResX.

Any modes that are not 1280x800 or 2560x1600 will need to be a scaled mode.

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