Thank you for that @olivierlambert
I've tried with the Dell R710 and R730, without any luck - I did a lot more extensive tests with the R710, which led to the frustration of not "trying as hard" with the R730, but perhaps there are some "tricks" that I missed? I tried to enable NV with modprobe and the like (I know that's vague, but its a LOT of nuance to describe for the "what and how").
Since the R710 is fairly ancient, I would typically assume its "less capable" than the R730 for NV with XCP-ng, but then sometimes I run into oddities where the R710 actually outperforms the R730 "without additional configuration" (such as with my other post/comment I'm actively exploring/troubleshooting - https://xcp-ng.org/forum/post/89035 ) - Then there is also the incredibly tedious and annoying mxGPU "slicing" features from the limited GPUs that feature was available for that the major of the internet has reported to NOT work for them in any modern Kernel of Linux, (though a few "edge cases" have been reported sucessfull). So, "maybe" older hardware has better / more mature drivers in some cases? That said, I've retired the R710, so the point is somewhat moot, anyway - but it serves as an interesting use case that I've learned a great deal from "conceptually". (TL;DR - its true what they say about "assuming" )
But, rather than start tinkering again and potentially create another 3+ day project, are there any specific "success stories" with the R730, specifically that you could recommend? or perhaps a specific model / CPU combination where NV has been reported by others as working with XCP-ng? Perhaps specific UEFI/BIOS settings or "kernel hacks" that "tend to have a higher reported success"?
