Folding Forum

Hello,

I'm using Folding@Home client v8.4.9 on Ubuntu 22.04 with an AMD Radeon RX 9070 XT (Navi 48). While the GPU is correctly detected and listed in `gpus.json`, it is marked as `supported: false` and no GPU work units are assigned.

Here are the relevant environment details:

• GPU: Radeon RX 9070 XT (Navi 48)
• OS: Ubuntu 22.04
• OpenCL runtime: AMD APP OpenCL 2.1 (3649.0)
• HIP: Enabled
• clinfo output confirms OpenCL support
• Client log:
gpu:11:00:00": {"vendor": 4098, "device": 30032, "type": "amd", "supported": false, "description": "Navi 48 [Radeon RX 9070(XT)]"}

Is support for this GPU expected in future Core versions?
If there's anything I can help test or submit (clinfo, logs, etc.), I'd be happy to assist.

Additional background:

On Windows 11, Folding@Home does recognize and run tasks on the RX 9070 XT, but when I set the slot to “Any” (mixed CPU/GPU), the work units fail to progress properly. It seems to throw computational errors or silently stall.

Because of repeated issues and instability with Windows itself, I’ve recently switched to Ubuntu as my main Folding environment. On Ubuntu 22.04, the GPU is detected but marked as `supported: false`, so no WUs are assigned at all.

Is there anything I can do on the user side to work around or fix this (e.g. manual configuration, specific driver versions, or flags)? Or is this something that needs to be addressed upstream in the client/core?Or if it is possible for the user to code and debug, please let me know.

Thanks for your help and for maintaining this project.

Best regards.

There are two main requirements to be listed as supported in the F@h client log. One is that the GPU is listed in the GPUs file which it is already. The second is that a properly installed support library for OpenCL can also be detected by the client.

There is this guide for installing the AMD drivers on Linux available for the v8 client - viewtopic.php?t=43222. I don't recall if Ubuntu 22.04 is included. You may need to use a more recent version, or there are older guides that may help.

I'm not very good at English so please forgive me for relying on translation and AI.

[Environment]
- OS: Ubuntu 22.04 LTS
- GPU: AMD Radeon RX 9070 XT (RDNA4 / Navi48 / gfx1201)
- OpenCL: AMD APP SDK 3649.0 (OpenCL 2.1)
- Client: FAHClient 8.4.9 / 8.5.2-alpha

[Summary]
I tested both FAHClient 8.4.9 and the latest 8.5.2-alpha on Ubuntu 22.04 based on a user comment that suggested reinstalling the client might fix GPU-related issues.

Result:
- With 8.4.9, the behavior was unchanged: GPU is not detected at all.
- With 8.5.2-alpha, the GPU (gfx1201) is finally recognized, but all GPU work units are **immediately discarded** after download. No actual computation is performed.

[Debug Mode Behavior]
- GPU WU downloads successfully.
- GPU slot is assigned and logs appear normal.
- However, execution ends with `SIGSEGV` or immediate termination.
- The slot is then marked idle and another WU is fetched (and discarded again).
- CPU slots are working fine and stable.

Any further insights or development plans regarding **RDNA4 (gfx12xx)** support in Folding@home GPU cores (especially Core22 or Core27) would be appreciated.

Thank you.

GGXRDDOP_ENL wrote: ↑Sat Oct 18, 2025 6:22 pm I'm not very good at English so please forgive me for relying on translation and AI.

[Environment]
- OS: Ubuntu 22.04 LTS
- GPU: AMD Radeon RX 9070 XT (RDNA4 / Navi48 / gfx1201)
- OpenCL: AMD APP SDK 3649.0 (OpenCL 2.1)
- Client: FAHClient 8.4.9 / 8.5.2-alpha

[Summary]
I tested both FAHClient 8.4.9 and the latest 8.5.2-alpha on Ubuntu 22.04 based on a user comment that suggested reinstalling the client might fix GPU-related issues.

Result:
- With 8.4.9, the behavior was unchanged: GPU is not detected at all.
- With 8.5.2-alpha, the GPU (gfx1201) is finally recognized, but all GPU work units are **immediately discarded** after download. No actual computation is performed.

[Debug Mode Behavior]
- GPU WU downloads successfully.
- GPU slot is assigned and logs appear normal.
- However, execution ends with `SIGSEGV` or immediate termination.
- The slot is then marked idle and another WU is fetched (and discarded again).
- CPU slots are working fine and stable.

Any further insights or development plans regarding **RDNA4 (gfx12xx)** support in Folding@home GPU cores (especially Core22 or Core27) would be appreciated.

Thank you.

For 9070XT you must use latest distribution, with latest kernel, it also requires mesa drivers installed to even function (though AMD probably has fixed this by now). Once you have mesa drivers installed, remove mesa-icd loader package, then as Joe suggested, go to this post: viewtopic.php?t=43222
read through it, follow it, and start folding

#Report

I stopped using AI-based setup assistance and rebuilt the environment strictly following AMD’s official documentation. As a result, I successfully ran Folding@home 8.4.9.
Thank you for the support.

I reinstalled the system multiple times, frequently using Ventoy and Rescuezilla. I still used Windows 11 as the starting point, though with the recent wave of issues it’s a bit scary to boot.

#References
#Ubuntu native installation
https://rocm.docs.amd.com/projects/inst ... hatgpt.com

#Install the kernel driver
https://instinct.docs.amd.com/projects/ ... buntu.html

#Update to Ultimate AMD GPU Linux FAH Guide for OpenCL (FAH-Client v8 only)
viewtopic.php?t=43222

#Environment (condensed)
OS: Ubuntu 24.04.3 LTS (“noble”)
ROCm: 7.0.2 (/opt/rocm/.info/version)
AMDGPU driver: 6.14.14 (rocm-smi --showdriverversion)
GPU (rocm-smi): AMD Radeon RX 9070 XT (Device ID 0x7550, Rev 0xc0, Subsystem 0x2435, GUID 46869)
Kernel binding: amdgpu (lspci -nnk)
OpenCL (clinfo): Platform detected: AMD Accelerated Parallel Processing (OpenCL 2.1 AMD-APP 3662.0); Number of OpenCL devices: 0
glxinfo: Not installed