GPU passthrough code 12 in win10 VM on proxmox

Operating Systems & Open Source Virtualization
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1

getting code 12 error in device manager.
have tried 538 data center tesla, and 442 tesla desktop drivers.
i cannot open nvidia control center, but on first try i get EULA prompt which i accept and then nothing more.

2

What specific GPU and Mobo so you have?

Disabled CSM, enabled above 4g decoding

Did you use the driver from Nvidia’s site or the one from the Google drive

I’ve had better luck with the grid drivers on p40 and v100

4

Oh uhhh I think only Maxwell and up got the VM fixes, you might be sol

Might be a driver or registry hack you can do, I mean I got Optimus to use Tesla’s to game on so there might be a creative solution

6

Sol is “shit out of luck”

Try the grid drivers they might work a bit better

Also in CMD with admin try
Nvidia-smi and screen cap what you get

7

got nothing on VM. normal output on host.

will try grid drivers…

edit:
grid drivers are for the host?

9

do i keep the drivers for the 780?
which drivers to use in the VM?

10

how do i check if ReBAR is functioning correct?
i see this:

Memory at fa000000 (32-bit, non-prefetchable) [disabled] [size=16M]
        Memory at 3ff000000000 (64-bit, prefetchable) [disabled] [size=32G]
        Memory at 3ff800000000 (64-bit, prefetchable) [disabled] [size=32M]

but is says disabled?

edit: just checked; it doesn’t say disabled…

11

somehow replied myself… see above post

12

can’t get reply to work…