OpenGL runs on llvmpipe instead of nvidia drivers

I have issues with Nvidia Tesla K80 GPU not being used by OpenGl apps in Ubuntu 18.04.

glxinfo | grep OpenGL
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 10.0.0, 256 bits)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 20.0.8
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.1 Mesa 20.0.8
OpenGL shading language version string: 1.40
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 20.0.8
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:

while nvidia-smi gives me:
$ nvidia-smi
Thu Oct 15 12:52:00 2020
±----------------------------------------------------------------------------+
| NVIDIA-SMI 455.23.05 Driver Version: 455.23.05 CUDA Version: 11.1 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 Tesla K80 On | 00000000:00:04.0 Off | 0 |
| N/A 31C P8 28W / 149W | 0MiB / 11441MiB | 0% Default |
| | | N/A |
±------------------------------±---------------------±---------------------+

±----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| No running processes found |
±----------------------------------------------------------------------------+

i also attached the bug report:nvidia-bug-report.log.gz (1.1 MB)

Hopefully you can help me out here because i am lost.

Thanks!

I have met the same problem as you! But mine is ubuntu16.04.7. I try for a long time, but still not solve it. Have you solved it now?
My problem’s details is in this link:
https://forums.developer.nvidia.com/t/ubuntu-16-04-installs-nvidia-driver-llvmpipe-llvm-6-0-256bits/78100/3?u=931476138