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Black screen when connecting to eGPU

HP Recommended
Zbook Studio G5
Microsoft Windows 10 (64-bit)



I just purchased Razer Core X eGPU enclosure with GeForce RTX3090 installed.  After connecting the eGPU to my Zbook Studio G5 laptop using Thunderbolt cable but nothing happend.  I opend the Device Manager and it showed that the  RTX3090 needed update.  I clicked on update and Windows downloaded and installed the update automatically.  After that the screen on my laptop went black.  I restarted the laptop but as soon as it gets into the login screen the screen becomes black again.


I connected external monitor to the RTX3090 and I can see and login screen however the laptop screen remains black!


How to fix this?


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