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trouble with 6800xt on Ubuntu 20.04
MuddyAU 7 Feb
I recently added a new 6800xt to my existing Ubuntu 20.04machine that already has two RX480/580 in it. At that stage it was running kernel 5.4.0-54 and amdgpu-pro 20.20 and this worked fine. It seems the 6800xt needs the new 20.45 driver and possibly a newer kernel. I have been trying combinations of amdgpu-pro 20.45 and either kernel 5.4.0-54 or 5.10.13 and various --opencl options when installing amdgpu-pro but so far haven't been able to get the driver working with the 6800xt. Under kernel 5.10 I can't get opencl installed as I get errors with dkms during amdgpu install. Under kernel 5.4.0-54 I can get opencl installed with options "pal,legacy" and then the applications can see the card but they fail when they try to use it.

I'm sure I'm doing something wrong during install as I know others are running 6800s in Ubuntu 20.04. Any clues?
orlfman 8 Feb
i don't use ubuntu myself, but over on reddit another user had a near similar issue as you:

hopefully that can give you some guidance on how to go about it and help.
MuddyAU 8 Feb
Thanks, I actually got it working. I used Ubuntu 20.04.2 and new kernel 5.10.14 and more or less followed this guide:

Basically you try to install the proprietary drivers, it fails, you update kernel and copy the driver firmware manually. It is functional for my purposes however I see overclocking under Linux may be added in kernel 5.12 sometime soon.
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