cmc1994

Hello, I just built a eGPU system and was surprised to see images on my laptop screen. I am using a late 2013 15" rMBP with Iris+750M, with a GTX 970 with Akitio thunder 2 adapter. After manually install the driver on the "Microsoft basic display adapter" (only laptop screen works this time), I boot into Windows 10, both screen would light up. When I go into device manager, I can see both 750M and 970. But the 750M would fail and the system would switch 750M to using microsoft driver. When I use the laptop screen, I wouldn't be able to open the Nvidia control center, but I can on the external display. From what I read on this forum, you won't be able to use the internal display on the 750M machine. When I run 3D mark, it does seem like I am using the eGPU. Can someone explains if it's normal to see the internal display works? Thank you!