Linux - Unable to utilise multiple GPU's

[Meldrix]

At my wits end when it comes to figuring out why I can't get Q2RTX to use both of my GPU's

Hardware: i9-12900k
2 EVGA RTX 3090's connected with an NV-Link bridge
96GB RAM
Z690 AORUS ELITE AX motherboard
Software: 6.4.2-arch1-1
XFCE4
NVIDIA Driver Version: 535.54.03
./version.sh = r2721~eaaa0b93
2721

I have enabled SLI in my xorg.conf, made sure that nvidia-smi nvlink --capabilities lists both cards as compatible with SLI and tried different ingame graphical combinations as well as switching from sli 0 -> sli 1 with multiple attempts

Q2RTX_launch_log.txt

nvidia-smi.txt

I am also unable to utilise both of my cards when running the steam release under proton.

I was able to get multi-gpu support to work when I was running them on a Z690 ASUS Prime-P about a year ago. I'm unsure as to whether my new motherboard is breaking compatibility because I can utilise the NV-Link connector to pool memory in other programs.

[dagelf]

Remove the NVlink and try again?