Driver installed but not used on Ubuntu 18.04

As the title says. I really hope someone can help me with this, I have spent the whole day trying to work it out. I have also installed several driver versions (390, 450, 435), but nothing works…

Output from nvidia-smi
Fri Nov 20 17:41:39 2020

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.100      Driver Version: 440.100      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  TITAN X (Pascal)    Off  | 00000000:01:00.0 Off |                  N/A |
| 23%   33C    P8    15W / 250W |      0MiB / 12194MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

root@IT033100:~# glxinfo | greprender
greprender: command not found
root@IT033100:~# glxinfo | grep render
direct rendering: Yes
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
    GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer, GLX_MESA_query_renderer, 
Extended renderer info (GLX_MESA_query_renderer):
OpenGL renderer string: llvmpipe (LLVM 9.0, 256 bits)
    GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth, 
    GL_MESA_ycbcr_texture, GL_NV_conditional_render, GL_NV_depth_clamp, 
    GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth, 
    GL_NV_conditional_render, GL_NV_depth_clamp, GL_NV_fog_distance, 
    GL_MESA_shader_integer_functions, GL_NV_conditional_render, 
    GL_OES_element_index_uint, GL_OES_fbo_render_mipmap, 

nvidia-bug-report.log.gz (291.6 KB)