Hello, we have exactly this dock at our school in combination with Macbooks. When the external monitor is switched on at the DP port, I have a picture signal on the HDMI output, which goes to Promethean ActivPanel. If I switch off the monitor, the image signal is also gone. We suspect that this is due to the power supply. I have connected the external power supply - but it doesn't help. If I disconnect the USB-C cable between the monitor and the dock, I still have a picture signal. It's only when I switch off the monitor that the fun stops. Does anyone have any idea what the problem could be? The power supply only delivers 10 V, 4 to 20 volts would be possible, I think I have read.

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Hi, I've only used the docking station for Windows7/10/11 and it works without any problems. For Mac, it is specified (in the technical notes) that for two monitors it can only mirror. It may well be that the DP port is the main port, in which case, if it's not available, the HDMI port is not active. It can't be linked to the power supply, because in that case it will have the opposite effect: for one monitor it will work, for two it won't. But I'm going to try the Belkin docking station. But I'm going to try the Belkin station with one of my MacBooks (an M3, and also an Intel) after tomorrow (tomorrow is Fasnacht in Basel) for two monitors (DP and HDMI).

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