[NAME] I have not encountered the problem you are having but according to this post: [URL]#M68086 in a dual monitor setup, if you wish to use both the integrated and discrete graphics, at least one monitor must be connected to the discrete graphics card before another monitor is connected to the integrated graphics.  I am not sure what you do if you are only using one monitor. If you are only using one monitor why would you use the integrated graphics since the discrete graphics will offer better performance? If you only want to use the integrated graphics you could remove the discrete graphics card.
Hi. If I try to boot with HDMI connected to the integrated graphics card (Intel UHD Graphics 750 of Intel i7-11700) it doesn't work, the screen is black and nothing more happens. If I press the power button it powers off instantly so it is not booting without video. I a try booting with HDMI connected to dedicated card (NVIDIA GeForce RTX 3060 Ti) it boots correctly. And once it is booted I can change the HDMI cable to integrated one and it works. I tried changing in BIOS the primary Display from Auto to Intel but not only did it not work, but it also did not allow me to enter BIOS again because when I booted with Nvidia card, I get no image until Windows started. So I had to clear BIOS holding the power button for more than 15 seconds. So I can see BIOS again with the Nvidia card, but the issue continues, it doesn't boot with the Intel card. I think it is a general issue, the problem is that it is very unusual to work with an integrated graphics card having a dedicated one, but I think it should be resolved. Any idea? Thanks!
XPS 8940, doesn't boot with iGPU, does with Nvidia dGPU