Qubes 4.1 install black screens

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I have similar issue with Qubes OS 4.1.0 ISO from Download Qubes OS | Qubes OS. When I try to install from it I’m getting this error:

X startup failed, aborting installation

I have 2 displays:

  • first is connected to integrated GPU Intel UHD Graphics 770.
  • second is connected to Nvidia GeForce GT 1030

I have my integrated GPU as main source set in my motherboard BIOS.
Qubes installation GRUB menu is displayed on integrated GPU but after I select Installation in GRUB then all output redirects on Nvidia and just black screen on integrated GPU. And in the end I’m getting the error above.

But with latest Qubes 4.1 ISO build with kernel-latest from Index of /qubes/iso/ I don’t get this error and installation process goes on integrated GPU and everything works fine.

Also you can try to hide the GPU that you’re going to passthrough and it may stop Qubes from using this GPU output as described here:

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