Same old stuff; FLR/reset issue. Happens in both of my Sapphire RX 7600 and Sapphire RX 7900 XTX.
Oddly enough, my 7900 XTX also has issues with W790 (Xeon w9-3495X) and Z790 (i9-13900K) systems where EFI firmware taking a veeeery long time to load, which only gone after I explicitly disabled loading EFI firmware for 7900 XTX slot. I want to like the RX 7000 series, but right now, it’s giving me a lot more headache than the A770.
(FWIW, there had been many successful cases in Radeon 7000 Edition thread. I just don’t have enough energy to persue the exact combination to make it work in my case at this point.)
Apart from some initial hiccups, I’ve been very happy with Arc GPUs so far. SR-IOV support is just a bonus for me at this point (would be very happy if we got more details).