I have a 2017 Macbook Pro connected to an HP Thunderbolt hub. From that hub, I have two USB-C -> DVI cables going into two monitors. For my third monitor, I have a DisplayPort cable from the hub to the monitor.
The two DVI monitors work correctly and show up in
System Preferences > Displays > Arrangement. The third monitor (the DisplayPort one) does not show up in the displays. Additionally, it is always mirroring one of my DVI monitors.
What's interesting is that if I unplug one of the DVI monitors, the third monitor starts working correctly and shows up in the
Is it not possible to have 3 monitors running where two are DVI and one is DP?
Edit: The resolutions of the two monitors using DVI are 1920 x 1080 and the resolution of the monitor using DP is 2560 x 1440.