i have some problems changing the display mode from your A40 cards with the Display_Mode_Selector_Tool.
We want to use the A40 as vGPUs. Right now ECC is diabled and SR-IOV in enabled…

VMware ESXi, 6.7.0, 19195723
Dell PowerEdge R750 with 2x Nvidia A40

NVIDIA-SMI 470.82 Driver Version: 470.82 CUDA Version: N/A |
| 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 NVIDIA A40 On | 00000000:17:00.0 Off | 0 |
| 0% 29C P8 31W / 300W | 0MiB / 45634MiB | 0% Default |
| | | N/A |
| 1 NVIDIA A40 On | 00000000:CA:00.0 Off | 0 |
| 0% 28C P8 31W / 300W | 6MiB / 45634MiB | 0% Default |
| | | N/A |

As far as i can see the GPUs are running in wrong mode:
GPU 00000000:CA:00.0
Product Name : NVIDIA A40
Product Brand : NVIDIA
Display Mode : Enabled
Display Active : Disabled
Persistence Mode : Enabled

So i want to Switch to physical_display_disabled and get this output:

./displaymodeselector --gpumode

NVIDIA Display Mode Selector Utility (Version 1.48.0)
Copyright (C) 2015-2020, NVIDIA Corporation. All Rights Reserved.

WARNING: This operation updates the firmware on the board and could make

  •     the device unusable if your host system lacks the necessary support.*

Are you sure you want to continue?
Press ‘y’ to confirm (any other key to abort):
Select a number:
<0> physical_display_enabled_256MB_bar1
<1> physical_display_disabled
<2> physical_display_enabled_8GB_bar1

Select a number (ESC to quit):

Specifed GPU Mode “physical_display_disabled”

Update GPU Mode of all adapters to “physical_display_disabled”?
Press ‘y’ to confirm or ‘n’ to choose adapters or any other key to abort:

Updating GPU Mode of all eligible adapters to “physical_display_disabled”

Segmentation fault

Does anyone know this error?

Same issue here. If you find a solution I would be happy if you share it with us.


what are you trying to achieve? A40 is already in the correct mode to run vGPU. There is no need to use mode selector tool!!!

The A40 comes configured as displayless, so unless you know it was changed, it’s probably fine.

ESXi 6.7.0 only supports A40 in pass-through mode, not NVIDIA vGPU. Upgrade to ESXi 7.0.2+ and then you can use vGPU.