# Vulkan SDK: No physical device found (Ubuntu 14.04 with NVIDIA 367.35 driver on GTX 460 + 1070) **URL:** \ **Category:** Vulkan\ **Created:** [August 11, 2016, 12:41pm UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346 "2016-08-11T12:41:20Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![brubru11](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@brubru11](https://forums.developer.nvidia.com/u/brubru11)\ **Post date:** [August 11, 2016, 12:41pm UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346/1 "2016-08-11T12:41:20Z")
Hello, I’m currently trying to use the vulkan SDK in order to do parallel computing on my GPUs. But no physical device is found according to vulkaninfo (as for my first C++ program in which vkEnumeratePhysicalDevices returns 0). I followed the steps described in the “getting started” page included within the SDK install package. Could someone help me to make it work ? If you need more information (see below), do not hesitate. Thanks in advance. Bruno Some information about the computer: OS: Linux - Ubuntu 14.04 GPUs: GeForce GTX 460 (running X) and GeForce GTX 1070 (just as accelerator) NVIDIA driver version: 367.35 Vulkan SDK version: 1.0.21.1 Output of vulkaninfo : ```auto =========== VULKAN INFO =========== Vulkan API Version: 1.0.21 INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_object_tracker.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_unique_objects.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_api_dump.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_parameter_validation.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_swapchain.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_threading.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_screenshot.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_image.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_vktrace_layer.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /home/bruno/vulkan/VulkanSDK/1.0.21.1/x86_64/etc/explicit_layer.d/VkLayer_core_validation.json, version "1.0.0" INFO: [loader] Code 0 : Found manifest file /etc/vulkan/icd.d/nvidia_icd.json, version "1.0.0" Instance Extensions: ==================== Instance Extensions count = 4 VK_KHR_surface : extension revision 25 VK_KHR_xcb_surface : extension revision 6 VK_KHR_xlib_surface : extension revision 6 VK_EXT_debug_report : extension revision 2 Layers: count = 11 ======= VK_LAYER_LUNARG_object_tracker (LunarG Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 VK_LAYER_GOOGLE_unique_objects (Google Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 0 Devices count = 0 VK_LAYER_LUNARG_api_dump (LunarG debug layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 0 Devices count = 0 VK_LAYER_LUNARG_parameter_validation (LunarG Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 VK_LAYER_LUNARG_swapchain (LunarG Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 VK_LAYER_GOOGLE_threading (Google Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 VK_LAYER_LUNARG_screenshot (LunarG image capture layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 0 Devices count = 0 VK_LAYER_LUNARG_image (LunarG Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 VK_LAYER_LUNARG_vktrace (Vktrace tracing library) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 0 Devices count = 0 VK_LAYER_LUNARG_core_validation (LunarG Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 VK_LAYER_LUNARG_standard_validation (LunarG Standard Validation Layer) Vulkan version 1.0.21, layer version 1 Layer Extensions count = 1 VK_EXT_debug_report : extension revision 3 Devices count = 0 Presentable Surface formats: ============================ None found ``` ---
**Author:** ![brubru11](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@brubru11](https://forums.developer.nvidia.com/u/brubru11)\ **Post date:** [August 17, 2016, 9:05am UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346/2 "2016-08-17T09:05:35Z")
I downgraded NVIDIA driver from 367.35 (latest) to 367.27, the last identified version that provides full Vulkan support. See [https://developer.nvidia.com/vulkan-driver](https://developer.nvidia.com/vulkan-driver) Still no physical device found. ---
**Author:** ![PDIbr](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@PDIbr](https://forums.developer.nvidia.com/u/PDIbr)\ **Post date:** [September 1, 2016, 5:10pm UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346/3 "2016-09-01T17:10:50Z")
Same problem. ---
**Author:** ![PDIbr](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@PDIbr](https://forums.developer.nvidia.com/u/PDIbr)\ **Post date:** [September 1, 2016, 5:16pm UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346/4 "2016-09-01T17:16:31Z")
I think it because of Fermi architecture. Fermi does not support Vulkan. ---
**Author:** ![brubru11](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@brubru11](https://forums.developer.nvidia.com/u/brubru11)\ **Post date:** [September 2, 2016, 8:10am UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346/5 "2016-09-02T08:10:44Z")
Thanks for your comment. It seems GTX 460 is Fermi, but the 1070 is Pascal so I should at least see one physical device… I also tried the following : - NVIDIA driver 367.44 (latest) - NVIDIA beta driver 370.23 (VK incompatible driver error) - Vulkan SDK 1.0.8 because the nvidia\_icd.json file mentions “api\_version” : “1.0.8” Annnd, still no physical device :'( ---
**Author:** ![brubru11](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@brubru11](https://forums.developer.nvidia.com/u/brubru11)\ **Post date:** [September 29, 2016, 1:43pm UTC](https://forums.developer.nvidia.com/t/vulkan-sdk-no-physical-device-found-ubuntu-14-04-with-nvidia-367-35-driver-on-gtx-460-1070/44346/6 "2016-09-29T13:43:10Z")
Still no idea of why it didn’t work with old config. Now I’m on Ubuntu 16.04 with only the GTX 1070 and everything works fine. Maybe it was Ubuntu 14.04 or the presence of the GTX 460…