Dual Monitors Mirroring

lgee · 07-22-2020, 10:53 AM

Setup:

MacBook Pro 13" (2017), Latest Mac OS Catalina 10.15.6
Dell WD15 Dock, connected via USB-C to Macbook (latest firmware)
2x Benq GW2480 Monitors, one connect to WD15 via HDMI, the other DP
Latest DisplayLink App & Drivers installed

Issue:
The external monitors are mirroring and I want to extend
The Display system panel only shows the laptop screen and one external display

Plugging the USB-C into my Windows laptop worked perfectly, I could extend to all 3 monitors (2 external, and 1 laptop)

How can I extend across all 3 using my Macbook?

Note: the DisplayLink menu icon screen shows "No Monitor Detected" in Connection status. Not sure if that is relevant.

07-22-2020, 10:53 AM	#1
lgee Junior Member Join Date: Jul 2020 Posts: 5	Dual Monitors Mirroring Setup: MacBook Pro 13" (2017), Latest Mac OS Catalina 10.15.6 Dell WD15 Dock, connected via USB-C to Macbook (latest firmware) 2x Benq GW2480 Monitors, one connect to WD15 via HDMI, the other DP Latest DisplayLink App & Drivers installed Issue: The external monitors are mirroring and I want to extend The Display system panel only shows the laptop screen and one external display Plugging the USB-C into my Windows laptop worked perfectly, I could extend to all 3 monitors (2 external, and 1 laptop) How can I extend across all 3 using my Macbook? Note: the DisplayLink menu icon screen shows "No Monitor Detected" in Connection status. Not sure if that is relevant.