#StackBounty: #drivers #nvidia #graphics #xorg #gpu Using P104-100 GPU on Ubuntu (as single or second GPU)

Bounty: 50

What I have:

GA-B250-Fintech motherboard

Ubuntu 18.04 (but I’m ready to reinstall to any version if it will work)

$ uname -r

And P104-100 video card.

$ lspci | grep NVIDIA
01:00.0 3D controller: NVIDIA Corporation GP104 [P104-100] (rev a1)

gcc --version
gcc (Ubuntu 7.4.0-9ubuntu1~18.04.york0) 7.4.0

The problem:
every time I install nvidia drivers, Ubuntu stop loading. Usually with message:

started user manager uid 121.

I plug out P104-100 and plug in GTX 1060, this works correctly:

~$ nvidia-smi
Mon May 13 22:56:17 2019       
| NVIDIA-SMI 418.74       Driver Version: 418.74       CUDA Version: 10.1     |
| 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 GTX 106...  Off  | 00000000:01:00.0 Off |                  N/A |
|  0%   42C    P8     6W / 120W |      0MiB /  6078MiB |      0%      Default |

| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|  No running processes found                                                 |

Then I tried plug in P104-100 as second card using another slot, and Ubuntu stops loading: freeze with message

Started GNOME Display Manager.

P.S. Using lshw -C display I found both cards have
physical id: 0
Can it be a reason?

How to install both cards on Ubuntu?
I think if I successfully install P104-100 as single card the same solution could be for installing both of them.

P.S. I found some solution about editing xconf for using on multiple GPUs: for example.
But it did not help.

Get this bounty!!!

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