No supporting GPUs found [FIXED]

Any time I try to start Da Vinci Resolve 19, I get this error. I've attached my DxDiag and the logs from CaptureLogs.bat

Short info:
X870 AORUS ELITE WIFI7
AMD Ryzen 7 9800X3D
128GB RAM
NVIDIA GeForce RTX 5090

Driver version:
GeForce Game Ready Driver 576.28

Screenshot_2.png (43.67 KiB) Viewed 533 times

Things that I've tried that did not work:

• Switching to the Studio Driver
• Disabling on-board graphics in Device Manager
• Disabling on-board graphics completely in the BIOS
• Setting the GPU processing mode to CUDA or OpenCL specifically
• Setting the GPU selection specifically to the 5090 instead of auto

I don't really know where to start looking for a solution. The 5090 is recognized and is picked automatically according to the logs:

Code: Select all

[0x00000db4] | Undefined            | INFO  | 2025-05-10 14:25:03,785 | --------------------------------------------------------------------------------
[0x00000db4] | Undefined            | INFO  | 2025-05-10 14:25:03,785 | Loaded log config from C:\Users\Gebruiker\AppData\Roaming\Blackmagic Design\DaVinci Resolve\Preferences\log-conf.xml
[0x00000db4] | Undefined            | INFO  | 2025-05-10 14:25:03,785 | --------------------------------------------------------------------------------
[0x00000db4] | Main                 | INFO  | 2025-05-10 14:25:03,786 | Running DaVinci Resolve v19.1.4.0011 (Windows/MSVC x86_64)
[0x00000db4] | Main                 | INFO  | 2025-05-10 14:25:03,786 | BMD_BUILD_UUID b1b3c9a4-2b56-49f7-8d35-530a992e21db
[0x00000db4] | Main                 | INFO  | 2025-05-10 14:25:03,786 | BMD_GIT_COMMIT 755196be3de2c6b815963568c83e02811d250cbb
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:03,786 | Starting GPUDetect 1.2_6-a2
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 | Done in 457 ms.
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 | Detected System:
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - OS: Windows 11 Home (Build 26100)
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - Model: Gigabyte X870 AORUS ELITE WIFI7
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - System ID: b3921cb4-70df-4558-9e9b-f78380b92134
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - CPU: AMD Ryzen 7 9800X3D, 16 threads, x86-64
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - RAM: 20.5 GiB used of 125.6 GiB
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - NVIDIA GPU Driver: 576.28, supports CUDA 12.9
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - AMD GPU Driver: 24.30.18-241224a-412061C-Channel
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 |   - AMD GPU Crimson Driver: 24.30.18
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,244 | Detected 2 GPUs:
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,245 |   - "NVIDIA GeForce RTX 5090" (gpu:dec9ab60.5150080d) <- Main Display GPU
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,245 |     Discrete, 1.6 GiB used of 30.6 GiB VRAM, PCI:1:0 (x16)
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,245 |     Matches: CUDA, DirectX, NVAPI, NVML, OpenCL, Win32
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,550 |   - "AMD Radeon Graphics" (gpu:930df9d0.fda283f3)
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,550 |     Integrated, 1.2 GiB used of 48.9 GiB VRAM, PCI:115:0.0
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,550 |     Matches: AMDDL, DirectX, OpenCL, Win32
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,550 | Detected 1 monitors:
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,550 |   - "Generic PnP Monitor" <- Main Monitor
[0x00000db4] | GPUDetect            | INFO  | 2025-05-10 14:25:04,550 |     5120x1440, connected to "NVIDIA GeForce RTX 5090" (gpu:dec9ab60.5150080d)
[0x00000db4] | Main.GPUConfig       | INFO  | 2025-05-10 14:25:04,551 | Compute API set to automatic, defaulting to CUDA.
[0x00000db4] | Main.GPUConfig       | INFO  | 2025-05-10 14:25:04,551 | Selected compute API: CUDA
[0x00000db4] | Main.GPUConfig       | INFO  | 2025-05-10 14:25:04,551 | Automatic GPU Selection:
[0x00000db4] | Main.GPUConfig       | INFO  | 2025-05-10 14:25:04,551 |   - "NVIDIA GeForce RTX 5090" (gpu:dec9ab60.5150080d)

I have a Studio license that is pretty much useless at the moment unfortunately. Any help is appreciated.


FIX:

Alright, managed to get it working. In my particular case it was because of a system environment variable called CUDA_NSIGHT_PROCESSOR, which was set to 1. I can't actually find anything about this environment variable when I Google it, but I have to assume it was something set by NVIDIA Nsight. I can't remember what I ever did in Nsight that created this variable. I uninstalled Nsight, since I don't need it anymore, but the environment variable didn't get deleted.

I manually removed the variable and now Resolve boots up just fine.

The same issue exists in the 20 beta. When opening the settings for the first time, it does want to optimize the Neural Engines, so it definitely knows there's a supported GPU in this machine.

Screenshot_3.png (52.47 KiB) Viewed 507 times

Everything looks normal. When exactly do you get the No GPU message?

(ALL displays are plugged into the 5090?)

Yes, there's just a single monitor connected to the 5090 with a DisplayPort cable. Just to be safe, I unplugged everything else except my keyboard and mouse. I get the error after the splashscreen is done loading. It goes pretty fast, I think the last three things it shows is Loading Color, Waveform Monitor, Audio (?)... and then the error pops up.

Just to make sure it wasn't monitor related, I tried all 3 Display Port outputs on the GPU and the error shows up with all of them.

I went back through the versions and the issue starts happening from version 17 and up. Resolve 16 appears to run just fine.

I've also tried Resolve 19 on my laptop, Intel i9-12900H with an NVIDIA RTX 3080, 64GB RAM and it looks like its running without any issues on that machine. Unfortunately I can't work on my laptop though, so it's not a real solution of my problem.

Is there something weird that it doesn't like about AMD CPU + NVIDIA GPU?

OK.

Try unchecking the two Auto options and select CUDA and the 5090 manually. Restart Resolve.

Thanks, but as you can see in my initial post, that was something I already tried without success.

Alright, managed to get it working. In my particular case it was because of a system environment variable called CUDA_NSIGHT_PROCESSOR, which was set to 1. I can't actually find anything about this environment variable when I Google it, but I have to assume it was something set by NVIDIA Nsight. I can't remember what I ever did in Nsight that created this variable. I uninstalled Nsight, since I don't need it anymore, but the environment variable didn't get deleted.

I manually removed the variable and now Resolve boots up just fine.

Nice find.

NEVER would have thought of that.

Yay! A nice bit of detective work and an excellent example of what makes multi-platform software development such a challenge. It is funny all the ways "identical machines" can differ.