I can't get my GPU to kick in on a KarmaXPU render. It always says 'EmbreeCPU(100%)'. Not sure what I'm missing. My card is old, but not exactly ancient.
Here's the console error:


I'm on an NVidia GeForce GTX 1060 6gb. My drivers are up to date (27.21.14.5671), which doesn't sync with 465.85.
Houdini 19.0.589.

I don't have the optix denoiser active so not sure this should be an issue either.

Thanks for any help.

carlfairweather
(27.21.14.5671),

That's not the right version number. What's the version displayed in Geforce experience or the Nvidia Control Panel? On linux run nvdia-smi

carlfairweather
I don't have the optix denoiser active so not sure this should be an issue either.

Optix refers to the raytracing library by Nvidia, not just the denoiser. It's used by Karma XPU to add GPU support to Nvidia hardware. Without recent drivers, Optix won't be enabled.

I'm on Windows. I normally look at the drivers from the device manager > properties. If I try updating the driver it says I'm up to date.

I did, however, find a 'system information' link from the NVidia control panel. That's telling me version 456.71. So clearly not high enough. I've manually downloaded a 512.15 studio driver. Fingers crossed that'll sort it.

Manual driver update worked Thanks for the push to dig a little deeper Jonathan!