Nvidia card not detected

Hello everybody.

I am not sure if I am in the right place for this post (so please MODs move the thread if it’s needed).
I am having some problems with my nvidia card.
It seems that it is not detected by some of the utilities, but not all.

In fact with “nvidia-smi” I get

nvidia-smi 
Thu Oct  3 16:12:35 2019       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 430.26       Driver Version: 430.26       CUDA Version: 10.2     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce 930MX       Off  | 00000000:01:00.0 Off |                  N/A |
| N/A   47C    P8    N/A /  N/A |      0MiB /  2004MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

On the other side I also have this:

nvidia-detector 
none

And this:

optirun glxgears -info
[  770.047166] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) Failed to load module "nvidia" (module does not exist, 0)

[  770.047249] [ERROR]Aborting because fallback start is disabled.

I have generated a bug report with the nvidia-bug-report.sh, the file can be accessed here:
https://drive.google.com/open?id=1qHPsb82H16wr7Hc-VcCSpP7lZOYaX5Jg

Any help would be really appreciated.