# Errors when starting to use NVIDIA IndeX
**URL:** https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298
**Category:** ParaView Support
**Created:** [January 9, 2020, 6:47pm UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298 "2020-01-09T18:47:40Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@saulhr](https://discourse.paraview.org/u/saulhr)
#### Post date: [January 9, 2020, 6:47pm UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/1 "2020-01-09T18:47:40Z")
Following Mathieu Westphal’s instructions I started using ParaView 5.7 in order to use NVIDIA IndeX. I used an OpenFOAM case and got the following messages:
```
nvindex: 1.0 INDEX main warn : Failed to open '/proc/driver/nvidia/version'. Please verify that the NVIDIA driver is installed properly.
nvindex: 1.0 INDEX main error: Failed to query the number of CUDA devices (cudaGetDeviceCount): no CUDA-capable device is detected.
nvindex: 1.0 INDEX main error: Could not find any valid CUDA devices, aborting.
nvindex: 1.0 PVPLN main error: Start of the NVIDIA IndeX library failed.
nvindex: 1.0 PVPLN main error: Failed to start the NVIDIA IndeX library: 1.
nvindex: 0.1 GPU rend warn : It appears that the "nvidia" kernel module is not loaded.
nvindex: 0.1 GPU rend warn : It appears that there are no "nvidia" device nodes. This configuration is unlikely to work at all. Verify that your runlevel is sufficient and "nvidia" device nodes are present, e.g., /dev/nvidia0.
nvindex: 0.1 CUDA rend warn : CUDA module initialization failed.
nvindex: 0.1 CUDA rend warn : cudaRuntimeGetVersion returned with error 'no CUDA-capable device is detected'
```
I want to know if they are major errors or I can continue working.
Thank you.
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 10, 2020, 9:10am UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/2 "2020-01-10T09:10:33Z")
What is your GPU ?
What is your graphic driver version ?
Can you share the Help -\> About dialog (bottom part) ?
---
### Author:  [@saulhr](https://discourse.paraview.org/u/saulhr)
#### Post date: [January 10, 2020, 4:52pm UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/3 "2020-01-10T16:52:58Z")
SO: elementary OS 5.1 Hera
GPU: NVIDIA GeForce GTX 1050 Ti Mobile
Driver: Nvidia-Driver-435
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 10, 2020, 4:54pm UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/4 "2020-01-10T16:54:42Z")
You are not using your NVidia GPU. You should use it when running ParaView, especially if you need index.
---
### Author:  [@saulhr](https://discourse.paraview.org/u/saulhr)
#### Post date: [January 10, 2020, 4:57pm UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/5 "2020-01-10T16:57:03Z")
Can it be solved? Is it possible to use the nvidia card for rendering?
---
### Author:  [@saulhr](https://discourse.paraview.org/u/saulhr)
#### Post date: [January 13, 2020, 4:17pm UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/6 "2020-01-13T16:17:06Z")
@Mathieu is possible use de nvidia card in paraview for linux?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 14, 2020, 11:17am UTC](https://discourse.paraview.org/t/errors-when-starting-to-use-nvidia-index/3298/7 "2020-01-14T11:17:42Z")
of course, but it has nothing to do with ParaView.
> **[How To Switch Between Intel and Nvidia Graphics Card on Ubuntu](https://www.linuxbabe.com/desktop-linux/switch-intel-nvidia-graphics-card-ubuntu)**
>
> This tutorial will show you how to seamlessly switch between Intel and Nvidia graphics card on Ubuntu. Check what card you are using.