Are you getting the eject egpu widget on the menu bar?  My experience with the Radeon VII so far is that it detects and initializes my egpu at startup or hotplug, but does not detect the display attached to it.  I have to either unplug and re-plug the displayport cable, turn the display off and back on, or eject and re-plug the egpu to get external display.  This is on MacOS 10.14.5 Public Beta 2,  a 2018 MBPro 13, Razer Core v2, and HP Spectre 32 Monitor.

@ningauble77 also, I’m using a tv as a monitor through the Mac hdmi incase that’s the issue. I did try plugging the hdmi cable into the card but got no picture

Sorry hotplug means to plug in a device while powered on.  For instance plugging the egpu into the computer while it is currently booted and running.  Sounds like you have a different issue than mine, have you tried uninstalling any scripts you have installed and reinstalling them, or verified that you have SIP disabled via "csrutil status" at the terminal?

@acjc66 Have you disable SIP prior to running Purge-Wrangler? The symptoms you described sound like an unpatched system.

@ningauble77 @itsage Thanks for suggesting a possible cause of the issue. I thought I disabled sip as I’m able to use data wrangler in terminal, the fact you’re able to get it working with the same setup itsage, means I must be have done something wrong. I’ll check everything again tomorrow to see if it’s something I missed and let you guys know

@acjc66, which Version of MacOSX are you using? I strongly suspect it's not 10.14.5 Beta

@robin_martin ... quick question. If I choose the BenQ PD3200U 4K Monitor, I noticed it has DisplayPort (v1.2) and the AMD V11 has DisplayPort (v1.4) will that make a difference or give me problems?? Your BenQ PD2700U 27 " 4K HDR IPS has DisplayPort (v1.4). LMK, thanks!

@p_gartner You’re probably fine with DisplayPort 1.2 in that monitor and the 1.4 output from the Radeon VII will be backwards compatible. Here’s more details on the differences between the DP versions. https://en.wikipedia.org/wiki/DisplayPort

 @OliverB as far as I can tell I am and I re-disabled sip and still no luck! Really not sure what the issue is

Also, It shows up in system information, which makes me think it should be working

?

@acjc66 Always keep SIP disabled while purge-wrangler patches are in use. Uninstall the patches. Reboot. Reinstall patches, but do not enable legacy AMD GPUs. Kexts have changed since 10.14.5 and perhaps that might be the problem (though in my estimation the kext should not be making a difference - still worth a go). Do try this and report back before moving on the further troubleshooting.