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Old 09-03-2018, 06:50 AM   #1
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Default Dual Display Issue Mac High Sierra 10.13.6

I recently got a DOCK410AUZ-51 Targus to use my Macbook (Retina 12-inch 2017; High Sierra 10.13.6). with two external monitors. I downloaded DisplayLink USB Graphics Software for macOS (4.3 Beta 6) and got AirPlay active.

On System Preferences -> Displays ->Arrangements it does show me 3 displays to drag arround. However, it does use my Mac as one screen and mirrors the 2nd screen on the two external monitors. How can I make it work so that I can use all three screens individually?
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Old 09-09-2018, 06:38 AM   #2
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Join Date: Sep 2018
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Default IOGear USB 3, HDMI extended monitors, MacOS High Sierra 10.13.6 Not Working

Hello friends,

I just purchased an IOGear dock GUD300 and connected two monitors via HDMI. One is HDMI to HDMI, the other is HDMI through DVI connector.

I connect from IOGear's USB3 connector into my Macbook Air which is currently in OS version High Sierra 10.13.6.

I downloaded and installed Displaylink V4.3, beta 5 driver. I made sure that the Displaylink User Agent is allowed to control my computer via the Security and Privacy setting of my Macbook.

I also connect a wireless logitech keyboard and mouse.

I made sure all the power is connected on monitors and the dock.

I connected my Macbook Air with IOGear dock via the USB3 cord.

This is what happens:

1. the screens detect a signal in HDMI
2. the screens then remain blank (a bit grey-er than the black screen when turned off or with no signal).

However, when I connect any one of the monitors directly into my MacBook Air via HDMI using my thunderbolt adapter, any one of these screens work.


1. the monitors work individually when connected to the Macbook directly via thunderbolt HDMI adapter.
2. The wireless keyboard and mouse works.
3. The monitors detect a signal

I don't see anything on the monitors.

I tried uninstalling the driver, and reinstalling. I even tried uninstalling the driver, and reinstalling 4.1.11 and this doesn't work.

Can you please help? I need it ASAP.
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