Anybody got PM  5.8b working in linux with multiple RX6800XT on driver 21.30 or any driver above 20.40?

I was delighted to see the update for the beta version 5.8b above however with a fresh install of ubuntu 20.04.3 kernel 5.11 and driver 21.30 working as promised but clinfo doesnt even see the cards. Using chipset B550 and the only way i have ever been able to get pm working on driver later than 20.40 is single GPU only. Maybe its a bios thing im not used to such modern mobo, currently got pci set to gen 1 - Any ideas?

Read about an issue with multiple GPUs caused by ROCR PCIE 3.0 atomics as per link below...have tried it without success...... Currently stuck on Manjero with driver 20.40 and clkernel 0 which gives an undesirable stqale share volume though it is stable and have full control...

https://www.reddit.com/r/gpumining/comments/ptmyjd/ubuntu_20043_amdgpu_2130_opencl_rocr_rocm/