Hi all,
I’m trying to troubleshot the setup of a new rendering server at work. It have 3 NVidia A40 GPU’s and no matter what I’ve done so far all of them shows ray-tracing support as unavailable. I checked in the following ways:
- GPU-Z shows the ray tracing box unticked;
- When using D3D12 CheckFeatureSupport function the RaytracingTier returns D3D12_RAYTRACING_TIER_NOT_SUPPORTED;
Some context:
- Driver’s are updated using the GeForce Experience app. Currently on version 537.13;
- Here’s the output from nvidia-smi
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 537.13 Driver Version: 537.13 CUDA Version: 12.2 |
|-----------------------------------------+----------------------+----------------------+
| GPU Name TCC/WDDM | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+======================+======================|
| 0 NVIDIA A40 TCC | 00000000:2B:00.0 Off | 0 |
| 0% 28C P8 11W / 300W | 1MiB / 46068MiB | 0% Default |
| | | N/A |
+-----------------------------------------+----------------------+----------------------+
| 1 NVIDIA A40 TCC | 00000000:A2:00.0 Off | 0 |
| 0% 26C P8 12W / 300W | 1MiB / 46068MiB | 0% Default |
| | | N/A |
+-----------------------------------------+----------------------+----------------------+
| 2 NVIDIA A40 TCC | 00000000:C0:00.0 Off | 0 |
| 0% 27C P8 12W / 300W | 1MiB / 46068MiB | 0% Default |
| | | N/A |
+-----------------------------------------+----------------------+----------------------+
+---------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=======================================================================================|
| No running processes found |
+---------------------------------------------------------------------------------------+
I’m accessing the server with Remote Desktop, and I’m not sure about this, but I think that running dxdiag don’t show info from the GPUs themselves, but only for the MS Remote Display Adapter, which shows DirectDraw and AGP Texture acceleration as unavailable and DirectX 12 Ultimate as disabled, not sure why.
Everything runs correctly on the current server, and also on my own laptop with Windows 11, both having RTXs GPUs. The new server runs on Windows Server 2022. I suspect that some configuration on it is preventing the GPU from running everything that it can, but I’m not sure what this would be, and I checked that the following capabilities are installed:
- DirectX.Configuration.Database~~~~0.0.1.0
- Tools.Graphics.DirectX~~~~0.0.1.0
Any ideas? Thanks in advance!