No I think the 470 doesnt support your card.
But I didnt take the time to look it up. mhwd -l will tell you whats available.
The 390xx is available which is what I’m using. Something else must be going on.
I just had a bunch of updates come in but it didn’t fix the problem. I wonder if I could change from unstable to stable?
It seems the nvidia drivers were the problem. I removed them and installed the free drivers and it’s all working now.