Bootcamp with Vega 64 -- Mac won't extend as second screen (with monitor connect...
 
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Bootcamp with Vega 64 -- Mac won't extend as second screen (with monitor connected)  

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Adam Ash
(@adam_ash)
Active Member
Joined: 11 months ago
 

Hey guys,

So yesterday I installed Bootcamp on my mac, plugged in my eGPU and was excited to see everything just worked as expected (despite all the threads saying I'd have to make loads of changes to the system). However, something weird is going on. I have a monitor connected to my MacBook, which is working find, but my MacBook has a Windows logo and I cannot seem to extend to that screen.

I'm worried that there might be some image burn or something. Is there a hidden setting or something which is not allowing me to use my mac screen as a monitor?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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itsage
(@itsage)
Founder Admin
Joined: 5 years ago
 

@adam_ash, This is the expected behavior when you have an eGPU connected at boot (to Windows). The iGPU/dGPU is deactivated and therefore the internal display stuck at Windows logo and no monitor connected to the iGPU/dGPU would work. You can either use an EFI boot loader to keep the iGPU/dGPU activated or connect the external monitor to the eGPU.

 

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Adam Ash
(@adam_ash)
Active Member
Joined: 11 months ago
 
Posted by: @itsage

@adam_ash, This is the expected behavior when you have an eGPU connected at boot (to Windows). The iGPU/dGPU is deactivated and therefore the internal display stuck at Windows logo and no monitor connected to the iGPU/dGPU would work. You can either use an EFI boot loader to keep the iGPU/dGPU activated or connect the external monitor to the eGPU.

Hey, sorry, perhaps I wasn't clear. 

The monitor is fine. My eGPU works perfectly (didn't have to do anything it all just worked) but my mac screen just has the windows logo and won't display anything. 

So to confirm, I have a MacBook pro connected to a Vega 64 which is connected to a monitor. 

When in macOS, the monitor works as does the mac screen. When I hit reboot and hold option (with the GPU still connected) I select windows and let it boot to windows but only the monitor works (connected to the GPU) but my mac screen has a windows logo. 

I can use windows just fine, the eGPU is working but I can only use the monitor. 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

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