Hi,

I’m trying to render offscreen on a headless server (no X installed) with 4x Titan X but I can’t get passed vkCreateInstance. Is there something that I could do to debug this?

Details:

eric@quark:~$ echo LD_LIBRARY_PATH /home/eric/VulkanSDK/1.0.30.0/x86_64/lib:/usr/lib/nvidia-370: eric@quark:~ nvidia-smi

Fri Nov 4 16:59:40 2016

±----------------------------------------------------------------------------+

| NVIDIA-SMI 370.28 Driver Version: 370.28 |

|-------------------------------±---------------------±---------------------+

| 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) On | 0000:02:00.0 Off | N/A |

| 23% 32C P8 16W / 250W | 0MiB / 12189MiB | 0% Default |

±------------------------------±---------------------±---------------------+

| 1 TITAN X (Pascal) On | 0000:03:00.0 Off | N/A |

| 23% 36C P8 15W / 250W | 0MiB / 12189MiB | 0% Default |

±------------------------------±---------------------±---------------------+

| 2 TITAN X (Pascal) On | 0000:82:00.0 Off | N/A |

| 23% 36C P8 17W / 250W | 0MiB / 12189MiB | 0% Default |

±------------------------------±---------------------±---------------------+

| 3 TITAN X (Pascal) On | 0000:83:00.0 Off | N/A |

| 23% 35C P8 15W / 250W | 0MiB / 12189MiB | 0% Default |

±------------------------------±---------------------±---------------------+

±----------------------------------------------------------------------------+

| Processes: GPU Memory |

| GPU PID Type Process name Usage |

|=============================================================================|

| No running processes found |

±----------------------------------------------------------------------------+

eric@quark:~$ ~/VulkanSDK/1.0.30.0/x86_64/bin/vulkaninfo

VULKAN INFO

Vulkan API Version: 1.0.30

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_vktrace_layer.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_threading.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_unique_objects.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_core_validation.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_screenshot.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_swapchain.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_object_tracker.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_api_dump.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_image.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /home/eric/VulkanSDK/1.0.30.0/x86_64/etc/explicit_layer.d/VkLayer_parameter_validation.json, version “1.0.0”

INFO: [loader] Code 0 : Found manifest file /usr/share/vulkan/icd.d/nvidia_icd.json, version “1.0.0”

ERROR: [loader] Code 0 : Couldn’t get vkCreateInstance via vk_icdGetInstanceProcAddr for ICD libGLX_nvidia.so.0

Cannot create Vulkan instance.

/var/lib/jenkins/workspace/Create-Linux-VulkanSDK/Vulkan-LoaderAndValidationLayers/demos/vulkaninfo.c:680: failed with VK_ERROR_INCOMPATIBLE_DRIVER