Remote Rendering: Segmentation Fault in vkGetPhysicalDeviceQueueFamilyProperties

Hello all,

I am running IsaacGym on a (headless) Ubuntu 18.04.5 remote system with a GeForce RTX 2070 (installed according to the installation documentation for a new conda environment, and I export both LD_LIBRARY_PATH=/home/[user]/anaconda3/envs/rlgpu/lib and VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/nvidia_icd.json).

The example script joint_monkey.py and train.py work and obviously skip render/view related stuff (prompting the respective carb.windowing-glfw.plugin and carb.gym.plugin errors) since running on a headless machine.

However, when trying ssh X11-forwarding for an interactive GUI or creating a virtual display via Xvfb (or xvfb-run) for video recording later (similar to OpenAI Gym Video Recorder), I obtain the following Segmentation Fault when debugging via gdb:

Thread 1 "python" received signal SIGSEGV, Segmentation fault.
0x00007fff1ddd3f70 in vkGetPhysicalDeviceQueueFamilyProperties () from /home/[user]/isaacgym/python/isaacgym/_bindings/linux-x86_64/libvulkan.so.1     

evoked from gym.create_sim(...)! This does not happen without X11-forwarding or Xvfb.

Another hint could be that vulkaninfo fails with X11-forwarding or Xvfb:
/build/vulkan-tools-136mCR/vulkan-tools-1.1.126.0+dfsg1/vulkaninfo/vulkaninfo.h:399: failed with ERROR_INITIALIZATION_FAILED
while it works fine without. I have attached its output (in the latter case) together with the nvidia-smi output below FYI.

Does anybody know what is happening here?
Otherwise, is there any other possibility to obtain a view/video from a headless remote machine?

Best wishes,
Jonas


nvidia-smi:

Tue Jan 19 15:48:07 2021       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 450.102.04   Driver Version: 450.102.04   CUDA Version: 11.0     |
|-------------------------------+----------------------+----------------------+
| 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  GeForce RTX 2070    Off  | 00000000:01:00.0 Off |                  N/A |
| 29%   25C    P8     9W / 175W |    158MiB /  7979MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    0   N/A  N/A      1184      G   /usr/lib/xorg/Xorg                 63MiB |
|    0   N/A  N/A      1241      G   /usr/bin/gnome-shell               92MiB |
+-----------------------------------------------------------------------------+

vulkaninfo: (without X11-forwarding or Xvfb)

==========
VULKANINFO
==========

Vulkan Instance Version: 1.1.126


Instance Extensions: count = 17
====================
	VK_EXT_acquire_xlib_display            : extension revision 1
	VK_EXT_debug_report                    : extension revision 9
	VK_EXT_debug_utils                     : extension revision 1
	VK_EXT_direct_mode_display             : extension revision 1
	VK_EXT_display_surface_counter         : extension revision 1
	VK_KHR_device_group_creation           : extension revision 1
	VK_KHR_display                         : extension revision 23
	VK_KHR_external_fence_capabilities     : extension revision 1
	VK_KHR_external_memory_capabilities    : extension revision 1
	VK_KHR_external_semaphore_capabilities : extension revision 1
	VK_KHR_get_display_properties2         : extension revision 1
	VK_KHR_get_physical_device_properties2 : extension revision 2
	VK_KHR_get_surface_capabilities2       : extension revision 1
	VK_KHR_surface                         : extension revision 25
	VK_KHR_surface_protected_capabilities  : extension revision 1
	VK_KHR_xcb_surface                     : extension revision 6
	VK_KHR_xlib_surface                    : extension revision 6

Layers: count = 2
=======
VK_LAYER_LUNARG_standard_validation (LunarG Standard Validation Layer) Vulkan version 1.0.126, layer version 1:
	Layer Extensions: count = 0
	Devices: count = 1
		GPU id 	: 0 (GeForce RTX 2070)
		Layer-Device Extensions: count = 0

VK_LAYER_NV_optimus (NVIDIA Optimus layer) Vulkan version 1.2.133, layer version 1:
	Layer Extensions: count = 0
	Devices: count = 1
		GPU id 	: 0 (GeForce RTX 2070)
		Layer-Device Extensions: count = 0

Presentable Surfaces:
=====================

Groups:
=======
	Device Group Properties (Group 0):
		physicalDeviceCount: count = 1
			GeForce RTX 2070 (ID: 0)
		subsetAllocation = 0

	Device Group Present Capabilities (Group 0):
		GeForce RTX 2070 (ID: 0)
		Can present images from the following devices:
			GeForce RTX 2070 (ID: 0)
		Present modes:
			DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR


Device Properties and Extensions:
=================================
GPU0:
VkPhysicalDeviceProperties:
---------------------------
	apiVersion     = 4202629 (1.2.133)
	driverVersion  = 1889108224 (0x70998100)
	vendorID       = 0x10de
	deviceID       = 0x1f02
	deviceType     = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU
	deviceName     = GeForce RTX 2070

VkPhysicalDeviceLimits:
-----------------------
	maxImageDimension1D                             = 32768
	maxImageDimension2D                             = 32768
	maxImageDimension3D                             = 16384
	maxImageDimensionCube                           = 32768
	maxImageArrayLayers                             = 2048
	maxTexelBufferElements                          = 134217728
	maxUniformBufferRange                           = 65536
	maxStorageBufferRange                           = 4294967295
	maxPushConstantsSize                            = 256
	maxMemoryAllocationCount                        = 4294967295
	maxSamplerAllocationCount                       = 4000
	bufferImageGranularity                          = 0x00000400
	sparseAddressSpaceSize                          = 0xffffffffff
	maxBoundDescriptorSets                          = 32
	maxPerStageDescriptorSamplers                   = 1048576
	maxPerStageDescriptorUniformBuffers             = 1048576
	maxPerStageDescriptorStorageBuffers             = 1048576
	maxPerStageDescriptorSampledImages              = 1048576
	maxPerStageDescriptorStorageImages              = 1048576
	maxPerStageDescriptorInputAttachments           = 1048576
	maxPerStageResources                            = 4294967295
	maxDescriptorSetSamplers                        = 1048576
	maxDescriptorSetUniformBuffers                  = 1048576
	maxDescriptorSetUniformBuffersDynamic           = 15
	maxDescriptorSetStorageBuffers                  = 1048576
	maxDescriptorSetStorageBuffersDynamic           = 16
	maxDescriptorSetSampledImages                   = 1048576
	maxDescriptorSetStorageImages                   = 1048576
	maxDescriptorSetInputAttachments                = 1048576
	maxVertexInputAttributes                        = 32
	maxVertexInputBindings                          = 32
	maxVertexInputAttributeOffset                   = 2047
	maxVertexInputBindingStride                     = 2048
	maxVertexOutputComponents                       = 128
	maxTessellationGenerationLevel                  = 64
	maxTessellationPatchSize                        = 32
	maxTessellationControlPerVertexInputComponents  = 128
	maxTessellationControlPerVertexOutputComponents = 128
	maxTessellationControlPerPatchOutputComponents  = 120
	maxTessellationControlTotalOutputComponents     = 4216
	maxTessellationEvaluationInputComponents        = 128
	maxTessellationEvaluationOutputComponents       = 128
	maxGeometryShaderInvocations                    = 32
	maxGeometryInputComponents                      = 128
	maxGeometryOutputComponents                     = 128
	maxGeometryOutputVertices                       = 1024
	maxGeometryTotalOutputComponents                = 1024
	maxFragmentInputComponents                      = 128
	maxFragmentOutputAttachments                    = 8
	maxFragmentDualSrcAttachments                   = 1
	maxFragmentCombinedOutputResources              = 16
	maxComputeSharedMemorySize                      = 49152
	maxComputeWorkGroupCount: count = 3
		2147483647
		65535
		65535
	maxComputeWorkGroupInvocations                  = 1024
	maxComputeWorkGroupSize: count = 3
		1024
		1024
		64
	subPixelPrecisionBits                           = 8
	subTexelPrecisionBits                           = 8
	mipmapPrecisionBits                             = 8
	maxDrawIndexedIndexValue                        = 4294967295
	maxDrawIndirectCount                            = 4294967295
	maxSamplerLodBias                               = 15
	maxSamplerAnisotropy                            = 16
	maxViewports                                    = 16
	maxViewportDimensions: count = 2
		32768
		32768
	viewportBoundsRange: count = 2
		-65536
		65536
	viewportSubPixelBits                            = 8
	minMemoryMapAlignment                           = 64
	minTexelBufferOffsetAlignment                   = 0x00000010
	minUniformBufferOffsetAlignment                 = 0x00000040
	minStorageBufferOffsetAlignment                 = 0x00000010
	minTexelOffset                                  = -8
	maxTexelOffset                                  = 7
	minTexelGatherOffset                            = -32
	maxTexelGatherOffset                            = 31
	minInterpolationOffset                          = -0.5
	maxInterpolationOffset                          = 0.4375
	subPixelInterpolationOffsetBits                 = 4
	maxFramebufferWidth                             = 32768
	maxFramebufferHeight                            = 32768
	maxFramebufferLayers                            = 2048
	framebufferColorSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
	framebufferDepthSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
	framebufferStencilSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	framebufferNoAttachmentsSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	maxColorAttachments                             = 8
	sampledImageColorSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
	sampledImageIntegerSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
	sampledImageDepthSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
	sampledImageStencilSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	storageImageSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
	maxSampleMaskWords                              = 1
	timestampComputeAndGraphics                     = true
	timestampPeriod                                 = 1
	maxClipDistances                                = 8
	maxCullDistances                                = 8
	maxCombinedClipAndCullDistances                 = 8
	discreteQueuePriorities                         = 2
	pointSizeRange: count = 2
		1
		2047.94
	lineWidthRange: count = 2
		1
		64
	pointSizeGranularity                            = 0.0625
	lineWidthGranularity                            = 0.0625
	strictLines                                     = true
	standardSampleLocations                         = true
	optimalBufferCopyOffsetAlignment                = 0x00000001
	optimalBufferCopyRowPitchAlignment              = 0x00000001
	nonCoherentAtomSize                             = 0x00000040

VkPhysicalDeviceSparseProperties:
---------------------------------
	residencyStandard2DBlockShape            = true
	residencyStandard2DMultisampleBlockShape = true
	residencyStandard3DBlockShape            = true
	residencyAlignedMipSize                  = false
	residencyNonResidentStrict               = true

VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT:
----------------------------------------------------
	advancedBlendMaxColorAttachments      = 8
	advancedBlendIndependentBlend         = false
	advancedBlendNonPremultipliedSrcColor = true
	advancedBlendNonPremultipliedDstColor = true
	advancedBlendCorrelatedOverlap        = true
	advancedBlendAllOperations            = true

VkPhysicalDeviceConservativeRasterizationPropertiesEXT:
-------------------------------------------------------
	primitiveOverestimationSize                 = 0.00195312
	maxExtraPrimitiveOverestimationSize         = 0.75
	extraPrimitiveOverestimationSizeGranularity = 0.25
	primitiveUnderestimation                    = true
	conservativePointAndLineRasterization       = true
	degenerateTrianglesRasterized               = true
	degenerateLinesRasterized                   = true
	fullyCoveredFragmentShaderInputVariable     = true
	conservativeRasterizationPostDepthCoverage  = true

VkPhysicalDeviceDepthStencilResolvePropertiesKHR:
-------------------------------------------------
	supportedDepthResolveModes:
		RESOLVE_MODE_SAMPLE_ZERO_BIT_KHR
		RESOLVE_MODE_AVERAGE_BIT_KHR
		RESOLVE_MODE_MIN_BIT_KHR
		RESOLVE_MODE_MAX_BIT_KHR
	supportedStencilResolveModes:
		RESOLVE_MODE_SAMPLE_ZERO_BIT_KHR
		RESOLVE_MODE_MIN_BIT_KHR
		RESOLVE_MODE_MAX_BIT_KHR
	independentResolveNone = true
	independentResolve     = true

VkPhysicalDeviceDescriptorIndexingPropertiesEXT:
------------------------------------------------
	maxUpdateAfterBindDescriptorsInAllPools              = 4294967295
	shaderUniformBufferArrayNonUniformIndexingNative     = true
	shaderSampledImageArrayNonUniformIndexingNative      = true
	shaderStorageBufferArrayNonUniformIndexingNative     = true
	shaderStorageImageArrayNonUniformIndexingNative      = true
	shaderInputAttachmentArrayNonUniformIndexingNative   = true
	robustBufferAccessUpdateAfterBind                    = true
	quadDivergentImplicitLod                             = true
	maxPerStageDescriptorUpdateAfterBindSamplers         = 1048576
	maxPerStageDescriptorUpdateAfterBindUniformBuffers   = 1048576
	maxPerStageDescriptorUpdateAfterBindStorageBuffers   = 1048576
	maxPerStageDescriptorUpdateAfterBindSampledImages    = 1048576
	maxPerStageDescriptorUpdateAfterBindStorageImages    = 1048576
	maxPerStageDescriptorUpdateAfterBindInputAttachments = 1048576
	maxPerStageUpdateAfterBindResources                  = 4294967295
	maxDescriptorSetUpdateAfterBindSamplers              = 1048576
	maxDescriptorSetUpdateAfterBindUniformBuffers        = 1048576
	maxDescriptorSetUpdateAfterBindUniformBuffersDynamic = 15
	maxDescriptorSetUpdateAfterBindStorageBuffers        = 1048576
	maxDescriptorSetUpdateAfterBindStorageBuffersDynamic = 16
	maxDescriptorSetUpdateAfterBindSampledImages         = 1048576
	maxDescriptorSetUpdateAfterBindStorageImages         = 1048576
	maxDescriptorSetUpdateAfterBindInputAttachments      = 1048576

VkPhysicalDeviceDiscardRectanglePropertiesEXT:
----------------------------------------------
	maxDiscardRectangles = 8

VkPhysicalDeviceDriverPropertiesKHR:
------------------------------------
	driverID           = DRIVER_ID_NVIDIA_PROPRIETARY_KHR
	driverName         = NVIDIA
	driverInfo         = 450.102.04
	conformanceVersion = 1.2.2.0

VkPhysicalDeviceFloatControlsPropertiesKHR:
-------------------------------------------
	denormBehaviorIndependence            = SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL_KHR
	roundingModeIndependence              = SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL_KHR
	shaderSignedZeroInfNanPreserveFloat16 = true
	shaderSignedZeroInfNanPreserveFloat32 = true
	shaderSignedZeroInfNanPreserveFloat64 = true
	shaderDenormPreserveFloat16           = true
	shaderDenormPreserveFloat32           = false
	shaderDenormPreserveFloat64           = false
	shaderDenormFlushToZeroFloat16        = false
	shaderDenormFlushToZeroFloat32        = false
	shaderDenormFlushToZeroFloat64        = false
	shaderRoundingModeRTEFloat16          = true
	shaderRoundingModeRTEFloat32          = true
	shaderRoundingModeRTEFloat64          = true
	shaderRoundingModeRTZFloat16          = false
	shaderRoundingModeRTZFloat32          = true
	shaderRoundingModeRTZFloat64          = true

VkPhysicalDeviceIDProperties:
-----------------------------
	deviceUUID      = b4e1d95a-ec1f-7c45-1124-6939fcc71cf2
	driverUUID      = c482d02-122c-b1f-b0c8-c61a45bdec81
	deviceNodeMask  = 1
	deviceLUIDValid = false

VkPhysicalDeviceInlineUniformBlockPropertiesEXT:
------------------------------------------------
	maxInlineUniformBlockSize                               = 256
	maxPerStageDescriptorInlineUniformBlocks                = 32
	maxPerStageDescriptorUpdateAfterBindInlineUniformBlocks = 32
	maxDescriptorSetInlineUniformBlocks                     = 32
	maxDescriptorSetUpdateAfterBindInlineUniformBlocks      = 32

VkPhysicalDeviceLineRasterizationPropertiesEXT:
-----------------------------------------------
	lineSubPixelPrecisionBits = 8

VkPhysicalDeviceMaintenance3Properties:
---------------------------------------
	maxPerSetDescriptors    = 4294967295
	maxMemoryAllocationSize = 0xffe00000

VkPhysicalDeviceMultiviewProperties:
------------------------------------
	maxMultiviewViewCount     = 32
	maxMultiviewInstanceIndex = 134217727

VkPhysicalDevicePCIBusInfoPropertiesEXT:
----------------------------------------
	pciDomain   = 0
	pciBus      = 1
	pciDevice   = 0
	pciFunction = 0

VkPhysicalDevicePointClippingProperties:
----------------------------------------
	pointClippingBehavior = POINT_CLIPPING_BEHAVIOR_USER_CLIP_PLANES_ONLY

VkPhysicalDeviceProtectedMemoryProperties:
------------------------------------------
	protectedNoFault = false

VkPhysicalDevicePushDescriptorPropertiesKHR:
--------------------------------------------
	maxPushDescriptors = 32

VkPhysicalDeviceSampleLocationsPropertiesEXT:
---------------------------------------------
	sampleLocationSampleCounts:
		SAMPLE_COUNT_1_BIT
		SAMPLE_COUNT_2_BIT
		SAMPLE_COUNT_4_BIT
		SAMPLE_COUNT_8_BIT
		SAMPLE_COUNT_16_BIT
	maxSampleLocationGridSize:
		width  = 1
		height = 1
	sampleLocationCoordinateRange: count = 2
		0
		0.9375
	sampleLocationSubPixelBits       = 4
	variableSampleLocations          = true

VkPhysicalDeviceSamplerFilterMinmaxPropertiesEXT:
-------------------------------------------------
	filterMinmaxSingleComponentFormats = true
	filterMinmaxImageComponentMapping  = true

VkPhysicalDeviceSubgroupProperties:
-----------------------------------
	subgroupSize              = 32
	supportedStages:
		SHADER_STAGE_VERTEX_BIT
		SHADER_STAGE_TESSELLATION_CONTROL_BIT
		SHADER_STAGE_TESSELLATION_EVALUATION_BIT
		SHADER_STAGE_GEOMETRY_BIT
		SHADER_STAGE_FRAGMENT_BIT
		SHADER_STAGE_COMPUTE_BIT
		SHADER_STAGE_ALL_GRAPHICS
		SHADER_STAGE_ALL
		SHADER_STAGE_RAYGEN_BIT_NV
		SHADER_STAGE_ANY_HIT_BIT_NV
		SHADER_STAGE_CLOSEST_HIT_BIT_NV
		SHADER_STAGE_MISS_BIT_NV
		SHADER_STAGE_INTERSECTION_BIT_NV
		SHADER_STAGE_CALLABLE_BIT_NV
		SHADER_STAGE_TASK_BIT_NV
		SHADER_STAGE_MESH_BIT_NV
	supportedOperations:
		SUBGROUP_FEATURE_BASIC_BIT
		SUBGROUP_FEATURE_VOTE_BIT
		SUBGROUP_FEATURE_ARITHMETIC_BIT
		SUBGROUP_FEATURE_BALLOT_BIT
		SUBGROUP_FEATURE_SHUFFLE_BIT
		SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT
		SUBGROUP_FEATURE_CLUSTERED_BIT
		SUBGROUP_FEATURE_QUAD_BIT
		SUBGROUP_FEATURE_PARTITIONED_BIT_NV
	quadOperationsInAllStages = true

VkPhysicalDeviceSubgroupSizeControlPropertiesEXT:
-------------------------------------------------
	minSubgroupSize              = 32
	maxSubgroupSize              = 32
	maxComputeWorkgroupSubgroups = 2097152
	requiredSubgroupSizeStages:
		SHADER_STAGE_VERTEX_BIT
		SHADER_STAGE_TESSELLATION_CONTROL_BIT
		SHADER_STAGE_TESSELLATION_EVALUATION_BIT
		SHADER_STAGE_GEOMETRY_BIT
		SHADER_STAGE_FRAGMENT_BIT
		SHADER_STAGE_COMPUTE_BIT
		SHADER_STAGE_ALL_GRAPHICS
		SHADER_STAGE_ALL
		SHADER_STAGE_RAYGEN_BIT_NV
		SHADER_STAGE_ANY_HIT_BIT_NV
		SHADER_STAGE_CLOSEST_HIT_BIT_NV
		SHADER_STAGE_MISS_BIT_NV
		SHADER_STAGE_INTERSECTION_BIT_NV
		SHADER_STAGE_CALLABLE_BIT_NV
		SHADER_STAGE_TASK_BIT_NV
		SHADER_STAGE_MESH_BIT_NV

VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT:
--------------------------------------------------
	storageTexelBufferOffsetAlignmentBytes       = 0x00000010
	storageTexelBufferOffsetSingleTexelAlignment = true
	uniformTexelBufferOffsetAlignmentBytes       = 0x00000010
	uniformTexelBufferOffsetSingleTexelAlignment = true

VkPhysicalDeviceTimelineSemaphorePropertiesKHR:
-----------------------------------------------
	maxTimelineSemaphoreValueDifference = 18446744073709551615

VkPhysicalDeviceTransformFeedbackPropertiesEXT:
-----------------------------------------------
	maxTransformFeedbackStreams                = 4
	maxTransformFeedbackBuffers                = 4
	maxTransformFeedbackBufferSize             = 0xffffffffffffffff
	maxTransformFeedbackStreamDataSize         = 2048
	maxTransformFeedbackBufferDataSize         = 512
	maxTransformFeedbackBufferDataStride       = 2048
	transformFeedbackQueries                   = true
	transformFeedbackStreamsLinesTriangles     = false
	transformFeedbackRasterizationStreamSelect = true
	transformFeedbackDraw                      = true

VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT:
----------------------------------------------------
	maxVertexAttribDivisor = 4294967295


Device Extensions: count = 109
	VK_EXT_blend_operation_advanced           : extension revision 2
	VK_EXT_buffer_device_address              : extension revision 2
	VK_EXT_calibrated_timestamps              : extension revision 1
	VK_EXT_conditional_rendering              : extension revision 2
	VK_EXT_conservative_rasterization         : extension revision 1
	VK_EXT_custom_border_color                : extension revision 11
	VK_EXT_depth_clip_enable                  : extension revision 1
	VK_EXT_depth_range_unrestricted           : extension revision 1
	VK_EXT_descriptor_indexing                : extension revision 2
	VK_EXT_discard_rectangles                 : extension revision 1
	VK_EXT_display_control                    : extension revision 1
	VK_EXT_fragment_shader_interlock          : extension revision 1
	VK_EXT_global_priority                    : extension revision 2
	VK_EXT_host_query_reset                   : extension revision 1
	VK_EXT_index_type_uint8                   : extension revision 1
	VK_EXT_inline_uniform_block               : extension revision 1
	VK_EXT_line_rasterization                 : extension revision 1
	VK_EXT_memory_budget                      : extension revision 1
	VK_EXT_pci_bus_info                       : extension revision 2
	VK_EXT_pipeline_creation_feedback         : extension revision 1
	VK_EXT_post_depth_coverage                : extension revision 1
	VK_EXT_sample_locations                   : extension revision 1
	VK_EXT_sampler_filter_minmax              : extension revision 2
	VK_EXT_scalar_block_layout                : extension revision 1
	VK_EXT_separate_stencil_usage             : extension revision 1
	VK_EXT_shader_demote_to_helper_invocation : extension revision 1
	VK_EXT_shader_subgroup_ballot             : extension revision 1
	VK_EXT_shader_subgroup_vote               : extension revision 1
	VK_EXT_shader_viewport_index_layer        : extension revision 1
	VK_EXT_subgroup_size_control              : extension revision 2
	VK_EXT_texel_buffer_alignment             : extension revision 1
	VK_EXT_tooling_info                       : extension revision 1
	VK_EXT_transform_feedback                 : extension revision 1
	VK_EXT_vertex_attribute_divisor           : extension revision 3
	VK_EXT_ycbcr_image_arrays                 : extension revision 1
	VK_KHR_16bit_storage                      : extension revision 1
	VK_KHR_8bit_storage                       : extension revision 1
	VK_KHR_bind_memory2                       : extension revision 1
	VK_KHR_buffer_device_address              : extension revision 1
	VK_KHR_create_renderpass2                 : extension revision 1
	VK_KHR_dedicated_allocation               : extension revision 3
	VK_KHR_depth_stencil_resolve              : extension revision 1
	VK_KHR_descriptor_update_template         : extension revision 1
	VK_KHR_device_group                       : extension revision 4
	VK_KHR_draw_indirect_count                : extension revision 1
	VK_KHR_driver_properties                  : extension revision 1
	VK_KHR_external_fence                     : extension revision 1
	VK_KHR_external_fence_fd                  : extension revision 1
	VK_KHR_external_memory                    : extension revision 1
	VK_KHR_external_memory_fd                 : extension revision 1
	VK_KHR_external_semaphore                 : extension revision 1
	VK_KHR_external_semaphore_fd              : extension revision 1
	VK_KHR_get_memory_requirements2           : extension revision 1
	VK_KHR_image_format_list                  : extension revision 1
	VK_KHR_imageless_framebuffer              : extension revision 1
	VK_KHR_maintenance1                       : extension revision 2
	VK_KHR_maintenance2                       : extension revision 1
	VK_KHR_maintenance3                       : extension revision 1
	VK_KHR_multiview                          : extension revision 1
	VK_KHR_pipeline_executable_properties     : extension revision 1
	VK_KHR_push_descriptor                    : extension revision 2
	VK_KHR_relaxed_block_layout               : extension revision 1
	VK_KHR_sampler_mirror_clamp_to_edge       : extension revision 3
	VK_KHR_sampler_ycbcr_conversion           : extension revision 14
	VK_KHR_separate_depth_stencil_layouts     : extension revision 1
	VK_KHR_shader_atomic_int64                : extension revision 1
	VK_KHR_shader_clock                       : extension revision 1
	VK_KHR_shader_draw_parameters             : extension revision 1
	VK_KHR_shader_float16_int8                : extension revision 1
	VK_KHR_shader_float_controls              : extension revision 4
	VK_KHR_shader_non_semantic_info           : extension revision 1
	VK_KHR_shader_subgroup_extended_types     : extension revision 1
	VK_KHR_spirv_1_4                          : extension revision 1
	VK_KHR_storage_buffer_storage_class       : extension revision 1
	VK_KHR_swapchain                          : extension revision 70
	VK_KHR_swapchain_mutable_format           : extension revision 1
	VK_KHR_timeline_semaphore                 : extension revision 2
	VK_KHR_uniform_buffer_standard_layout     : extension revision 1
	VK_KHR_variable_pointers                  : extension revision 1
	VK_KHR_vulkan_memory_model                : extension revision 3
	VK_NVX_binary_import                      : extension revision 1
	VK_NVX_device_generated_commands          : extension revision 3
	VK_NVX_image_view_handle                  : extension revision 1
	VK_NVX_multiview_per_view_attributes      : extension revision 1
	VK_NV_clip_space_w_scaling                : extension revision 1
	VK_NV_compute_shader_derivatives          : extension revision 1
	VK_NV_cooperative_matrix                  : extension revision 1
	VK_NV_corner_sampled_image                : extension revision 2
	VK_NV_coverage_reduction_mode             : extension revision 1
	VK_NV_dedicated_allocation                : extension revision 1
	VK_NV_dedicated_allocation_image_aliasing : extension revision 1
	VK_NV_device_diagnostic_checkpoints       : extension revision 2
	VK_NV_device_diagnostics_config           : extension revision 1
	VK_NV_fill_rectangle                      : extension revision 1
	VK_NV_fragment_coverage_to_color          : extension revision 1
	VK_NV_fragment_shader_barycentric         : extension revision 1
	VK_NV_framebuffer_mixed_samples           : extension revision 1
	VK_NV_geometry_shader_passthrough         : extension revision 1
	VK_NV_mesh_shader                         : extension revision 1
	VK_NV_ray_tracing                         : extension revision 3
	VK_NV_representative_fragment_test        : extension revision 2
	VK_NV_sample_mask_override_coverage       : extension revision 1
	VK_NV_scissor_exclusive                   : extension revision 1
	VK_NV_shader_image_footprint              : extension revision 2
	VK_NV_shader_sm_builtins                  : extension revision 1
	VK_NV_shader_subgroup_partitioned         : extension revision 1
	VK_NV_shading_rate_image                  : extension revision 3
	VK_NV_viewport_array2                     : extension revision 1
	VK_NV_viewport_swizzle                    : extension revision 1

VkQueueFamilyProperties[0]:
==========================
	minImageTransferGranularity = (1, 1, 1)
	queueCount                  = 16
	queueFlags                  = QUEUE_GRAPHICS | QUEUE_COMPUTE | QUEUE_TRANSFER | QUEUE_SPARSE_BINDING
	timestampValidBits          = 64
	present support = false

VkQueueFamilyProperties[1]:
==========================
	minImageTransferGranularity = (1, 1, 1)
	queueCount                  = 2
	queueFlags                  = QUEUE_TRANSFER | QUEUE_SPARSE_BINDING
	timestampValidBits          = 64
	present support = false

VkQueueFamilyProperties[2]:
==========================
	minImageTransferGranularity = (1, 1, 1)
	queueCount                  = 8
	queueFlags                  = QUEUE_COMPUTE | QUEUE_TRANSFER | QUEUE_SPARSE_BINDING
	timestampValidBits          = 64
	present support = false

VkPhysicalDeviceMemoryProperties:
=================================
memoryHeaps: count = 3
	memoryHeaps[0]:
		size   = 8589934592 (0x200000000) (8.00 GiB)
		budget = 8197767168
		usage  = 0
		flags:
			MEMORY_HEAP_DEVICE_LOCAL_BIT
	memoryHeaps[1]:
		size   = 12550358016 (0x2ec0f4400) (11.69 GiB)
		budget = 12550358016
		usage  = 1077248
		flags:
			None
	memoryHeaps[2]:
		size   = 257949696 (0x0f600000) (246.00 MiB)
		budget = 248905728
		usage  = 9043968
		flags:
			MEMORY_HEAP_DEVICE_LOCAL_BIT
memoryTypes: count = 11
	memoryTypes[0]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: None
			IMAGE_TILING_LINEAR: None
	memoryTypes[1]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: color images
			IMAGE_TILING_LINEAR: None
	memoryTypes[2]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: FORMAT_D16_UNORM
			IMAGE_TILING_LINEAR: None
	memoryTypes[3]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: FORMAT_X8_D24_UNORM_PACK32, FORMAT_D24_UNORM_S8_UINT
			IMAGE_TILING_LINEAR: None
	memoryTypes[4]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: FORMAT_D32_SFLOAT
			IMAGE_TILING_LINEAR: None
	memoryTypes[5]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: FORMAT_D32_SFLOAT_S8_UINT
			IMAGE_TILING_LINEAR: None
	memoryTypes[6]:
		heapIndex     = 1
		propertyFlags = 0x0000:
			None
		usable for:
			IMAGE_TILING_OPTIMAL: FORMAT_S8_UINT
			IMAGE_TILING_LINEAR: None
	memoryTypes[7]:
		heapIndex     = 0
		propertyFlags = 0x0001:
			MEMORY_PROPERTY_DEVICE_LOCAL_BIT
		usable for:
			IMAGE_TILING_OPTIMAL: color images, FORMAT_D16_UNORM, FORMAT_X8_D24_UNORM_PACK32, FORMAT_D32_SFLOAT, FORMAT_S8_UINT, FORMAT_D24_UNORM_S8_UINT, FORMAT_D32_SFLOAT_S8_UINT
			IMAGE_TILING_LINEAR: None
	memoryTypes[8]:
		heapIndex     = 1
		propertyFlags = 0x0006:
			MEMORY_PROPERTY_HOST_VISIBLE_BIT
			MEMORY_PROPERTY_HOST_COHERENT_BIT
		usable for:
			IMAGE_TILING_OPTIMAL: None
			IMAGE_TILING_LINEAR: None
	memoryTypes[9]:
		heapIndex     = 1
		propertyFlags = 0x000e:
			MEMORY_PROPERTY_HOST_VISIBLE_BIT
			MEMORY_PROPERTY_HOST_COHERENT_BIT
			MEMORY_PROPERTY_HOST_CACHED_BIT
		usable for:
			IMAGE_TILING_OPTIMAL: None
			IMAGE_TILING_LINEAR: None
	memoryTypes[10]:
		heapIndex     = 2
		propertyFlags = 0x0007:
			MEMORY_PROPERTY_DEVICE_LOCAL_BIT
			MEMORY_PROPERTY_HOST_VISIBLE_BIT
			MEMORY_PROPERTY_HOST_COHERENT_BIT
		usable for:
			IMAGE_TILING_OPTIMAL: None
			IMAGE_TILING_LINEAR: None

VkPhysicalDeviceFeatures:
=========================
	robustBufferAccess                      = true
	fullDrawIndexUint32                     = true
	imageCubeArray                          = true
	independentBlend                        = true
	geometryShader                          = true
	tessellationShader                      = true
	sampleRateShading                       = true
	dualSrcBlend                            = true
	logicOp                                 = true
	multiDrawIndirect                       = true
	drawIndirectFirstInstance               = true
	depthClamp                              = true
	depthBiasClamp                          = true
	fillModeNonSolid                        = true
	depthBounds                             = true
	wideLines                               = true
	largePoints                             = true
	alphaToOne                              = true
	multiViewport                           = true
	samplerAnisotropy                       = true
	textureCompressionETC2                  = false
	textureCompressionASTC_LDR              = false
	textureCompressionBC                    = true
	occlusionQueryPrecise                   = true
	pipelineStatisticsQuery                 = true
	vertexPipelineStoresAndAtomics          = true
	fragmentStoresAndAtomics                = true
	shaderTessellationAndGeometryPointSize  = true
	shaderImageGatherExtended               = true
	shaderStorageImageExtendedFormats       = true
	shaderStorageImageMultisample           = true
	shaderStorageImageReadWithoutFormat     = true
	shaderStorageImageWriteWithoutFormat    = true
	shaderUniformBufferArrayDynamicIndexing = true
	shaderSampledImageArrayDynamicIndexing  = true
	shaderStorageBufferArrayDynamicIndexing = true
	shaderStorageImageArrayDynamicIndexing  = true
	shaderClipDistance                      = true
	shaderCullDistance                      = true
	shaderFloat64                           = true
	shaderInt64                             = true
	shaderInt16                             = true
	shaderResourceResidency                 = true
	shaderResourceMinLod                    = true
	sparseBinding                           = true
	sparseResidencyBuffer                   = true
	sparseResidencyImage2D                  = true
	sparseResidencyImage3D                  = true
	sparseResidency2Samples                 = true
	sparseResidency4Samples                 = true
	sparseResidency8Samples                 = true
	sparseResidency16Samples                = true
	sparseResidencyAliased                  = true
	variableMultisampleRate                 = true
	inheritedQueries                        = true

VkPhysicalDevice16BitStorageFeatures:
-------------------------------------
	storageBuffer16BitAccess           = true
	uniformAndStorageBuffer16BitAccess = true
	storagePushConstant16              = true
	storageInputOutput16               = false

VkPhysicalDevice8BitStorageFeaturesKHR:
---------------------------------------
	storageBuffer8BitAccess           = true
	uniformAndStorageBuffer8BitAccess = true
	storagePushConstant8              = true

VkPhysicalDeviceBlendOperationAdvancedFeaturesEXT:
--------------------------------------------------
	advancedBlendCoherentOperations = true

VkPhysicalDeviceBufferDeviceAddressFeaturesEXT:
-----------------------------------------------
	bufferDeviceAddress              = true
	bufferDeviceAddressCaptureReplay = false
	bufferDeviceAddressMultiDevice   = true

VkPhysicalDeviceConditionalRenderingFeaturesEXT:
------------------------------------------------
	conditionalRendering          = true
	inheritedConditionalRendering = true

VkPhysicalDeviceDepthClipEnableFeaturesEXT:
-------------------------------------------
	depthClipEnable = true

VkPhysicalDeviceDescriptorIndexingFeaturesEXT:
----------------------------------------------
	shaderInputAttachmentArrayDynamicIndexing          = true
	shaderUniformTexelBufferArrayDynamicIndexing       = true
	shaderStorageTexelBufferArrayDynamicIndexing       = true
	shaderUniformBufferArrayNonUniformIndexing         = true
	shaderSampledImageArrayNonUniformIndexing          = true
	shaderStorageBufferArrayNonUniformIndexing         = true
	shaderStorageImageArrayNonUniformIndexing          = true
	shaderInputAttachmentArrayNonUniformIndexing       = true
	shaderUniformTexelBufferArrayNonUniformIndexing    = true
	shaderStorageTexelBufferArrayNonUniformIndexing    = true
	descriptorBindingUniformBufferUpdateAfterBind      = true
	descriptorBindingSampledImageUpdateAfterBind       = true
	descriptorBindingStorageImageUpdateAfterBind       = true
	descriptorBindingStorageBufferUpdateAfterBind      = true
	descriptorBindingUniformTexelBufferUpdateAfterBind = true
	descriptorBindingStorageTexelBufferUpdateAfterBind = true
	descriptorBindingUpdateUnusedWhilePending          = true
	descriptorBindingPartiallyBound                    = true
	descriptorBindingVariableDescriptorCount           = true
	runtimeDescriptorArray                             = true

VkPhysicalDeviceFragmentShaderInterlockFeaturesEXT:
---------------------------------------------------
	fragmentShaderSampleInterlock      = true
	fragmentShaderPixelInterlock       = true
	fragmentShaderShadingRateInterlock = true

VkPhysicalDeviceHostQueryResetFeaturesEXT:
------------------------------------------
	hostQueryReset = true

VkPhysicalDeviceImagelessFramebufferFeaturesKHR:
------------------------------------------------
	imagelessFramebuffer = true

VkPhysicalDeviceIndexTypeUint8FeaturesEXT:
------------------------------------------
	indexTypeUint8 = true

VkPhysicalDeviceInlineUniformBlockFeaturesEXT:
----------------------------------------------
	inlineUniformBlock                                 = true
	descriptorBindingInlineUniformBlockUpdateAfterBind = true

VkPhysicalDeviceLineRasterizationFeaturesEXT:
---------------------------------------------
	rectangularLines         = true
	bresenhamLines           = true
	smoothLines              = true
	stippledRectangularLines = true
	stippledBresenhamLines   = true
	stippledSmoothLines      = true

VkPhysicalDeviceMultiviewFeatures:
----------------------------------
	multiview                   = true
	multiviewGeometryShader     = true
	multiviewTessellationShader = true

VkPhysicalDevicePipelineExecutablePropertiesFeaturesKHR:
--------------------------------------------------------
	pipelineExecutableInfo = true

VkPhysicalDeviceProtectedMemoryFeatures:
----------------------------------------
	protectedMemory = false

VkPhysicalDeviceSamplerYcbcrConversionFeatures:
-----------------------------------------------
	samplerYcbcrConversion = true

VkPhysicalDeviceScalarBlockLayoutFeaturesEXT:
---------------------------------------------
	scalarBlockLayout = true

VkPhysicalDeviceShaderAtomicInt64FeaturesKHR:
---------------------------------------------
	shaderBufferInt64Atomics = true
	shaderSharedInt64Atomics = true

VkPhysicalDeviceShaderClockFeaturesKHR:
---------------------------------------
	shaderSubgroupClock = true
	shaderDeviceClock   = true

VkPhysicalDeviceShaderDemoteToHelperInvocationFeaturesEXT:
----------------------------------------------------------
	shaderDemoteToHelperInvocation = true

VkPhysicalDeviceShaderDrawParametersFeatures:
---------------------------------------------
	shaderDrawParameters = true

VkPhysicalDeviceShaderFloat16Int8FeaturesKHR:
---------------------------------------------
	shaderFloat16 = true
	shaderInt8    = true

VkPhysicalDeviceShaderSubgroupExtendedTypesFeaturesKHR:
-------------------------------------------------------
	shaderSubgroupExtendedTypes = true

VkPhysicalDeviceSubgroupSizeControlFeaturesEXT:
-----------------------------------------------
	subgroupSizeControl  = true
	computeFullSubgroups = true

VkPhysicalDeviceTexelBufferAlignmentFeaturesEXT:
------------------------------------------------
	texelBufferAlignment = true

VkPhysicalDeviceTimelineSemaphoreFeaturesKHR:
---------------------------------------------
	timelineSemaphore = true

VkPhysicalDeviceTransformFeedbackFeaturesEXT:
---------------------------------------------
	transformFeedback = true
	geometryStreams   = true

VkPhysicalDeviceUniformBufferStandardLayoutFeaturesKHR:
-------------------------------------------------------
	uniformBufferStandardLayout = true

VkPhysicalDeviceVariablePointersFeatures:
-----------------------------------------
	variablePointersStorageBuffer = true
	variablePointers              = true

VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT:
--------------------------------------------------
	vertexAttributeInstanceRateDivisor     = true
	vertexAttributeInstanceRateZeroDivisor = true

VkPhysicalDeviceVulkanMemoryModelFeaturesKHR:
---------------------------------------------
	vulkanMemoryModel                             = true
	vulkanMemoryModelDeviceScope                  = true
	vulkanMemoryModelAvailabilityVisibilityChains = true

VkPhysicalDeviceYcbcrImageArraysFeaturesEXT:
--------------------------------------------
	ycbcrImageArrays = true

Hi @jonas.jaeger97,

Vulkan doesn’t work through X11 forwarding, so you won’t be able to use that approach.

We typically have used RealVNC for this kind of remote usage. If you don’t have a monitor connected to the machine, you will need to set up the xorg config for headless rendering. There are some docs here which can help with that: VirtualGL | Documentation / Headless nVidia Mini How-To

Take care,
-Gav

2 Likes

Hi Gav,

I come from this post: Viewer GUI with virtual display

I haven’t found much success following the instructions you mentioned. Could you please by any chance share a Dockerfile that enables IsaacGym Viewer GUI on remote headless servers with VNC access?

Thank you so much in advance!

For the last question, please see the response here: Viewer GUI with virtual display - #5 by gstate

Take care,
-Gav