Vulkan 验证层无法在 Linux 上加载/工作 [英] Vulkan validation layers don't load/work on Linux

问题描述

我有基本的 Vulkan 应用程序Hello triangle"，源自本教程.在调试模式下，我使用两个验证层:

I have basic Vulkan application, "Hello triangle",derived from this tutorial. In debug mode I use two validations layers:

VK_LAYER_KHRONOS_validation 和 VK_LAYER_LUNARG_monitor

在 Windows 上我没有问题.两个层都加载了，我可以在标题栏中看到 FPS 计数器.但是我在 Linux (Ubuntu 18.04) 上遇到了不同的行为.

On Windows I got no problem. Both layers load, I can see FPS counter in the title bar. But I am experiencing different behaviour on Linux (Ubuntu 18.04).

仅加载 VK_LAYER_LUNARG_monitor.标题栏中不显示 FPS 计数器.

Only VK_LAYER_LUNARG_monitor loads. No FPS counter appears in the title bar.

VK_LAYER_KHRONOS_validation 无法加载并显示错误:

VK_LAYER_KHRONOS_validation fails to load with the error:

错误:libVkLayer_khronos_validation.so:无法打开共享对象文件:没有那个文件或目录

ERROR: libVkLayer_khronos_validation.so: cannot open shared object file: No such file or directory

我根据此 LunarG 文档中出现的指南执行了 Linux 设置.

I performed Linux setup according to the guidelines appearing in this LunarG doc.

1. 将整个 LunarG SDK 放在我的 Linux 上的任意位置文件系统.
2. 将setup-env.sh 导入.profile 文件
3. 在 setup-env.sh 脚本中，我还添加了 VK_LOADER_DEBUG=all 以查看来自 Vulkan Loader 的详细信息.
4. 验证脚本设置的所有变量是否指向 SDK 中的正确目录.

1. Put the whole LunarG SDK in an arbitrary location on my Linux filesystem.
2. Sourced setup-env.sh into .profile file
3. Inside the setup-env.sh script I also added VK_LOADER_DEBUG=all in order to see detailed info from Vulkan Loader.
4. Verified that all the variables set by the script point to correct directories in the SDK. They do.

setup-env.sh:

setup-env.sh:

 VULKAN_SDK="$(dirname "$(readlink -f "${BASH_SOURCE:-$_}" )" )/x86_64"
 export VULKAN_SDK
 PATH="$VULKAN_SDK/bin:$PATH"
 export PATH
 LD_LIBRARY_PATH="$VULKAN_SDK/lib:${LD_LIBRARY_PATH:-}"
 export LD_LIBRARY_PATH
 VK_LAYER_PATH="$VULKAN_SDK/etc/vulkan/explicit_layer.d"
 export VK_LAYER_PATH
 export VK_LOADER_DEBUG=all

这是我从调试输出中得到的显示加载层失败的块:

Here is the chunk I am gettin from debug output that show the failure of loading the layers:

DEBUG:加载图层库/home/platform-thirdparty/vulkan-sdk/1.1.121.1/x86_64/lib/libVkLayer_monitor.so信息:插入的设备层 VK_LAYER_LUNARG_monitor(/home/platform-thirdparty/vulkan-sdk/1.1.121.1/x86_64/lib/libVkLayer_monitor.so)消息:libVkLayer_khronos_validation.so:无法打开共享对象文件:没有这样的文件或目录错误:libVkLayer_khronos_validation.so:无法打开共享对象文件:否这样的文件或目录

DEBUG: Loading layer library /home/platform-thirdparty/vulkan-sdk/1.1.121.1/x86_64/lib/libVkLayer_monitor.so INFO: Inserted device layer VK_LAYER_LUNARG_monitor (/home/platform-thirdparty/vulkan-sdk/1.1.121.1/x86_64/lib/libVkLayer_monitor.so) Message:libVkLayer_khronos_validation.so: cannot open shared object file: No such file or directory ERROR: libVkLayer_khronos_validation.so: cannot open shared object file: No such file or directory

尽管它这么说

插入设备层 VK_LAYER_LUNARG_monitor

Inserted device layer VK_LAYER_LUNARG_monitor

显示器不工作.如果我将 VK_LAYER_KHRONOS_validation 替换为 VK_LAYER_LUNARG_standard_validation，我会收到相同的加载失败错误.调试器还显示加载器确实找到了 SDK 中所有层的所有清单文件.我不知道还有什么可能是问题.

The monitor doesn't work. If I replace VK_LAYER_KHRONOS_validation with VK_LAYER_LUNARG_standard_validation I am getting the same load fail error. The debugger also shows that the loader did find all the manifest files for all the layers in the SDK. I have no clue what else can be a problem.

我的系统设置:

Ubuntu 18.04 64 位，Nvidia RTX 3000英伟达驱动:430.0VulkanSDK(LunarG):1.1.121.1

Ubuntu 18.04 64bit, Nvidia RTX 3000 Nvidia Drivers: 430.0 VulkanSDK(LunarG): 1.1.121.1

推荐答案

在这个 SO question 是 user1824407 的答案.

In this SO question lies the answer by user1824407.

似乎在最新的 Ubuntu 发行版中(至少在我使用的 18.04 中)将 LD_LIBRARY 路径设置为配置文件，例如:.profile 或 /etc/environment 或 .bashrc

It appears that in the latest Ubuntu distributions (at least in 18.04 I use) setting LD_LIBRARY path into config files like: .profile or /etc/environment or .bashrc

没有任何效果.事实上，我尝试将 lib 路径添加到所有这些文件中，即使 echo $LD_LIBRARY_PATH 打印了我设置的通行证，lib 也没有加载.并且仅当我将带有 Vulkan 验证层位置的路径添加到 /etc/ld.so.conf.d/devlibs.conf where

Doesn't take any effec.And indeed,I tried adding the lib path to all of those files, the libs didn't load even that echo $LD_LIBRARY_PATH printed the pass I set. And only when I added the path with the Vulkan validation layers location to /etc/ld.so.conf.d/devlibs.conf where

devlibs.conf

devlibs.conf

是我给文件的任意名称，现在我看到 VK_LAYER_LUNARG_monitor 和 VK_LAYER_KHRONOS_validation 都由 Vulkan 加载.

is an arbitrary name I gave the file,now I see both VK_LAYER_LUNARG_monitor and VK_LAYER_KHRONOS_validation are loaded by Vulkan.

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