FahCore not recognizing RTX4090 after Ubuntu updates

It seems that a lot of GPU problems revolve around specific versions of drivers. Though NVidia has their own support structure, you can often learn from information reported by others who fold.

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thiblec71
Posts: 21
Joined: Wed Jul 26, 2023 1:42 pm

FahCore not recognizing RTX4090 after Ubuntu updates

Post by thiblec71 »

After an update, Ubuntu 22.03 stopped recognizing my Nvidia RTX 4090 and so FahCore was folding only on CPU.

I tried everything up until I decided to install from scratch Ubuntu 23.10 on a new partition. Ubuntu came with the latest Nvidia drivers (I am using the 535 tested).

I reinstalled FahCore from the Ubuntu app center and I am now back folding with the GPU, full speed.

I thought I would share my experience as I am sure I am not the only one in this case.
PaulTV
Posts: 210
Joined: Mon Jan 25, 2021 4:53 pm
Location: Netherlands

Re: FahCore not recognizing RTX4090 after Ubuntu updates

Post by PaulTV »

First install dkms, then the official nvidia drivers. dkms will make sure the drivers are recompiled with a new kernel, and you''ll need the official drivers instead of the regular ones for folding.
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Ryzen 9800X3D / RTX 4090 / Windows 11
Ryzen 5600X / RTX 3070 Ti / Ubuntu 22.04
Ryzen 5600 / RTX 3060 Ti / Windows 11
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