Dock Display Port, No Show - Sabrent Thunderbolt 3 NVMe SSD Docking Station

Hello! We just got our new Macstudio-M2 Max and the Sabrent Thunderbolt 3 NVMe SSD Docking Station.


It's all set and everything but the dock's display port. Display is not showing up even with a brand new cable (DP-HDMI). But when I try a USB-HDMI hub/adapter, it does show up. I am planning to use it as a second monitor.


Any ideas? Thank you very much!



Mac Studio

Posted on Feb 10, 2025 07:19 PM

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7 replies

Feb 12, 2025 05:15 AM in response to ervzman

https://www.asus.com/displays-desktops/monitors/eye-care/vc239h/techspec/


Asus VC239H is a 23" display with 1920x1080 pixel resolution and a 60 Hz refresh rate. It has three video inputs: HDMI v1.4, DVI, and VGA.


The Mac Studio should be able to drive it directly with

  • a HDMI to HDMI cable, or
  • a USB-C (DisplayPort) to HDMI adapter cable


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With regards to the Sabrent dock, here's something that might be of possible interest:

https://www.quora.com/Why-does-my-new-out-of-the-box-display-port-to-an-HDMI-female-adapter-not-work


If the DisplayPort output on your Sabrent dock does not have the "dual-mode" feature, and the adapter that you were using with it is a "passive" adapter that relies on the "dual-mode" feature, that might explain why you could not get a signal. If that was the cause, getting an "active" adapter (one that did not depend on the source device doing part of the adapting work for it) might let you make a connection through the Sabrent dock.

Feb 12, 2025 08:38 AM in response to Servant of Cats

DisplayPort uses 3 Volts signal levels. without "Dual Mode" (where the Originating device boosts its signal levels to HDMI's 5 Volts levels) the 3 volt signals are not detected at the display.


An ACTIVE adapter or adapter/cable has signal re-Drivers, and can use power from the power lead in the interface to re-generate the signals at the 5 Volts level.

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Dock Display Port, No Show - Sabrent Thunderbolt 3 NVMe SSD Docking Station

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