MP 7,1 2019 Mac Pro - 6900 XT - Boot Camp only uses 580X MPX Module

[johnnymcc]

I installed a new Radeon 6900 XT into my Mac Pro 7,1 which works great in Big Sur 11.4 - however, it's not recognized at all in Boot Camp and I cannot get the AMD Adrenaline drivers installed at all as it does not recognize it. I have the 580x MPX Module with the LG 5K Ultrafine, and a 30" ACD connected via the 6900's Display Port. I tried installing these drivers: https://www.bootcampdrivers.com/ (the red) and now I have complete black screens on restart. I am about to start completely over and just totally remove the MPX module altogether.

 

[johnnymcc]

Figured it out. Everything works when I remove the 580x MPX module. so it will remain out! ONly thing that sucks is from now on I don't have a video signal via the USB-C ports...

 

[johnnymcc]

... I do wish I could use both at the same time in Windows!

 

[blackquartz]

Hi, have you ever found a solution?

 

[blackquartz]

solution for this problem is to do a clean install for the drivers without the mpx module , after that you can return the mpx and have both cards using Boot Camp

 

[TrevorR90]

solution for this problem is to do a clean install for the drivers without the mpx module , after that you can return the mpx and have both cards using Boot Camp

I did this but I get an error with the 580x in the device manager, is this the case with you or anyone else? Code 31 is what I get.

 

[flowrider]

Figured it out. Everything works when I remove the 580x MPX module. so it will remain out! ONly thing that sucks is from now on I don't have a video signal via the USB-C ports...

You can use the Belkin cable:

Belkin Charge and Sync Computer Connection Cable for HUAWEI VR Glass

Adapt HUAWEI VR Glass to connect with computer. Support DisplayPort high-speed transmission. Support HUAWEI VR Glass PC mode 3K 90Hz resolution. 4.5 meters in length, enjoy immersive VR games. 2 USB-A and 1 DisplayPort connet with PC, 1 USB-C port connects with Huawei VR Glass.

www.vmallworld.com

Or this less expensive recently released cable:

WJESOG DisplayPort to USB C Cable 6.6ft 4K@60Hz with USB Cable Adapter,DP Male to Type-C Male Converter Support Touch with Nreal Air VR, MacBook Pro/Air 2020/2018, iPad Pro/Air, XPS

Displayport to USB C Cable 6.6ft 4K@60Hz

www.amazon.com

I own them both, and this second cable works just as we'll the the Belkin, is much shorter and only uses one USB port.

Lou