15" MacBookPro 2018 How to get the internal display running on Bootcamp
yes, there is a way to accelerate the internal display with the ADM eGPU! It is a little bit tricky but doable.
The trick is to "uninstall" the dGPU (Radeon Pro 560X) in device manager just before rebooting. After rebooting you will have both displays working well. It is very reliable and works well. It's funny that you must do the same trick with an nVidia card if you want to boot with a connected eGPU and not lose internal display.
There are tutorial about this in this very forum.- Perhaps @itsage can provide a link?!
Edit: Short tutorial:
2) Hotplug eGPU and get Error 12
3) Uninstall Radeon Pro 560X in Device manager (keep files) and reboot immediately.
Unfortunately step 3 has to be done each time before reboot
@oliverb, Thank you! Very impressive tutorial!
Surprisingly, where is a method that can get both the dGPU and eGPU working on 560X mac. The key was to use the drivers installed from ( https://www.bootcampdrivers.com) instead of the official drivers. After installing I found that windows is has recognized the dGPU as power-saving and the eGPU as high-performance. I haven't tested whether it will get the eGPU booting internal screen software set to use the high-performance GPU yet. I'll report after testing.
Yes, the high-performance card can be activated after taken steps discussed in this topic, which is the same thing being done for the Nvidia cards. No uninstalling and rebooting of the eGPU is required. Finally!
yes, this is the way. It has some inconvenience, but it works very reliably.
I had exactly the same problem and solved it by a fresh install of w10 1903 .30 and disabling auto-update + bootcampdrivers red 2020. Since then it works like a charm.
I can boot with plugged eGPU and plug it after W10 boots into the system. I'm going to keep it that way.