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I created a GPU instance on Google Compute engine with NVIDIA Tesla K80 attached. I have installed GPU drivers and CUDA based on this guide.

nvidia-smi check - ok.

nvcc -V check - ok

Now I am trying to make sure I can run headless rendering with OpenGL.

I tried this:

sudo nvidia-xconfig -a --use-display-device=none

to configure xconfig.

Then:

export DISPLAY=:0

Finally,running glxgears: 

glxinfo | grep OpenGL

I am getting this error:

No protocol specified Error: unable to open display :0

My xorg.conf file looks like this:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 390.30  (buildmeister@swio-display-x64-rhel04-14)  Wed Jan 31 22:46:17 PST 2018
Section "ServerFlags"
     Option "IgnoreABI" "True"
     Option "nolisten" "True"
     Option "AutoAddDevices" "False"
EndSection
Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "nvidia" 0 0
EndSection
Section "Files"
EndSection
Section "Device"
    Identifier     "nvidia"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Tesla K80"
    BusID          "PCI:0:4:0"
EndSection
Section "Screen"
    Identifier     "nvidia"
    Device         "nvidia"
    Option         "UseDisplayDevice" "none"
EndSection

What is missing in my config?

My OS: Ubuntu 16.04

Michael IV
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1 Answers1

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I'm not sure if the same thing applies as your running totally headless but I recently set up a Cloud Compute instance for VNC and to get OpenGL to work I had to follow this guide and install VirtualGL. https://virtualgl.org/Documentation/HeadlessNV

In your case you might only need to do:

sudo nvidia-xconfig -a --allow-empty-initial-configuration --virtual=1920x1200 --busid PCI:0:4:0
Thomas
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noviceserverguy
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