Re: How to turn of Intel VGA controller?

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On 5/2/20 11:08 AM, William Oliver wrote:
I am running Fedora 31 on an HP Envy 17t laptop with a NVIDIA MX250 gpu. I have installed the NVIDIA driver downloaded from NVIDA, and it seems to have installed just fine. I have installed CUDA, as far as I can tell.

I am trying to use the GPU rendering capabilities of Blender, a 3D modeling package. However, the package does not believe there is a CUDA compatible GPU installed.

I *think* it's because I'm actually running the Intel VGA controller.

So, if I'm right, my question is, how do I disable the Intel VGA controller (or not make it the default) so it uses the NVIDIA controller.

Depending on how the hardware is setup, you might not be able to disable the Intel one. (See the other very long thread here that has been discussing that same issue for an AMD setup.) Do you have a right-click option to run applications on the other GPU?

First, of course, graphics seems to work in general. Blender runs fine, but (for those of you who might use blender), when using the Cycles renderer, I can only render using the CPU.

$lsmod | grep nvidia
nvidia_drm             53248  0
nvidia_modeset       1118208  1 nvidia_drm
nvidia              20504576  4 nvidia_modeset
ipmi_msghandler       118784  1 nvidia
drm_kms_helper        237568  2 nvidia_drm,i915
drm                   598016  13 drm_kms_helper,nvidia_drm,i915
The driver is loaded.

The following is a little odd. This used to load, but while floundering about, I removed and reinstalled the Nvidia driver from NVIDIA. Now it won't load:

$ nvidia-settings

ERROR: Unable to load info from any available system

This is a problem. If the settings app can't find the card, then CUDA likely won't be able to either. You probably have to fully clean out all the NVidia stuff and reinstall it properly.

I assume the tainting stuff below is because I'm using the driver downloaded from NVIDIA.

Yes.
You downloaded it from NVidia instead of using the rpmfusion packages? Cleaning it up will be extra fun then...
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