I’ve gotten the engine compiled correctly (I believe), and have proper AMD Radeon r9 Fury drivers installed and working. When running UE4Editor, a popup shows the following:
Assertion failed: Result >= VK_SUCCESS [File:/.../Engine/Source/Runtime/VulkanRHI/Private/VulkanLayers.cpp] [Line: 137]
libUE4Editor-Core.so!FGenericPlatformMisc::RaiseException(unsigned int) [/.../Engine/Source/Runtime/Core/Private/GenericPlatform/GenericPlatformMisc.cpp:477]
libUE4Editor-Core.so!FOutputDevice::LogfImpl(char16_t const*, ...) [/.../Engine/Source/Runtime/Core/Private/Misc/OutputDevice.cpp:71]
libUE4Editor-Core.so!AssertFailedImplV(char const*, char const*, int, char16_t const*, __va_list_tag*) [/.../Engine/Source/Runtime/Core/Private/Misc/AssertionMacros.cpp:105]
libUE4Editor-Core.so!FDebug::CheckVerifyFailedImpl(char const*, char const*, int, char16_t const*, ...) [/.../Engine/Source/Runtime/Core/Private/Misc/AssertionMacros.cpp:452]
libUE4Editor-VulkanRHI.so!FVulkanDynamicRHI::GetInstanceLayersAndExtensions(TArray<char const*, TSizedDefaultAllocator<32> >&, TArray<char const*, TSizedDefaultAllocator<32> >&, bool&) [/.../Engine/Source/Runtime/VulkanRHI/Private/VulkanLayers.cpp:246]
libUE4Editor-VulkanRHI.so!FVulkanDynamicRHI::CreateInstance() [/.../Engine/Source/Runtime/VulkanRHI/Private/VulkanRHI.cpp:366]
libUE4Editor-VulkanRHI.so!FVulkanDynamicRHI::InitInstance() [/.../Engine/Source/Runtime/VulkanRHI/Private/VulkanRHI.cpp:656]
libUE4Editor-VulkanRHI.so!FVulkanDynamicRHI::Init() [/.../Engine/Source/Runtime/VulkanRHI/Private/VulkanRHI.cpp:215]
libUE4Editor-RHI.so!RHIInit(bool) [/.../Engine/Source/Runtime/RHI/Private/DynamicRHI.cpp:212]
UE4Editor!FEngineLoop::PreInitPreStartupScreen(char16_t const*) [/.../Engine/Source/Runtime/Launch/Private/LaunchEngineLoop.cpp:2273]
UE4Editor!GuardedMain(char16_t const*) [/.../Engine/Source/Runtime/Launch/Private/Launch.cpp:131]
libUE4Editor-UnixCommonStartup.so!CommonUnixMain(int, char**, int (*)(char16_t const*), void (*)()) [/.../Engine/Source/Runtime/Unix/UnixCommonStartup/Private/UnixCommonStartup.cpp:264]
libc.so.6!__libc_start_main(+0xe6)