Installing nvidia driver for quadro RTX 6000 on Ubuntu 18.04/20.04

I just recently bought HP workstation z4, which contains Nvidia Quadro RTX 6000. I have spent days trying to install the right nvidia driver and cuda-toolkit, but so far not a single solution online work. I have tried both Ubuntu 18.04 and Ubuntu 20.04, neither of them could solve the problem. By running nvidia-smi it still give the “NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.” all the time. I’ve attached one of the bug report of the lastest try of mine just in case it would help. Honestly, I really don’t understand why it has to be this complicate for the non-expert user to have to figure it out.
Thank in advance for any help to guide me on how should I do.

Dan

nvidia-bug-report.log.gz (115.5 KB)

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I have the same problem unfortunately. Were you able to solve it somehow?

I have the very same problem. I am running Ubuntu 18.04 on a Supermicro X11SPA-T Server and I get the following error. I have tried with the nvidia-460, nvidia-470, nvidia-470-server and nvidia-470-headless and none of them works.

ltorresf@newcom-beta:~$ nvidia-smi 
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

ltorresf@newcom-beta:~$ prime-select query
nvidia
ltorresf@newcom-beta:~$ sudo lshw -c display 
  *-display                 
       description: VGA compatible controller
       product: ASPEED Graphics Family
       vendor: ASPEED Technology, Inc.
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 41
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi vga_controller cap_list rom
       configuration: driver=ast latency=0
       resources: irq:17 memory:a9000000-a9ffffff memory:aa000000-aa01ffff ioport:2000(size=128) memory:c0000-dffff
  *-display UNCLAIMED
       description: VGA compatible controller
       product: GA102GL [RTX A6000]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:19:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller cap_list
       configuration: latency=0
       resources: iomemory:38400-383ff iomemory:38400-383ff memory:384000000000-38400fffffff memory:384010000000-384011ffffff ioport:7000(size=128)
ltorresf@newcom-beta:~$