Qt was built without Direct3D 12 support. This is likely due to having ancient SDK headers (such as d3d12.h) in the Qt build environment. Rebuild Qt with an SDK supporting D3D12 features introduced in Windows 10 version 1703, or use an MSVC build as those typically are built with more up-to-date SDKs. Qt 6.9.1 (x86_64-little_endian-llp64 shared (dynamic) release build; by GCC 13.1.0) on "windows" OS: Windows 11 Version 24H2 [winnt version 10.0.26100] Architecture: x86_64; features: SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 RDRAND RDSEED AES VAES SHA Environment: Features: QT_NO_EXCEPTIONS Library info: PrefixPath: C:\Qt\6.9.1\mingw_64 DocumentationPath: C:\Qt\Docs\Qt-6.9.1 HeadersPath: C:\Qt\6.9.1\mingw_64\include LibrariesPath: C:\Qt\6.9.1\mingw_64\lib LibraryExecutablesPath: C:\Qt\6.9.1\mingw_64\bin BinariesPath: C:\Qt\6.9.1\mingw_64\bin PluginsPath: C:\Qt\6.9.1\mingw_64\plugins QmlImportsPath: C:\Qt\6.9.1\mingw_64\qml ArchDataPath: C:\Qt\6.9.1\mingw_64 DataPath: C:\Qt\6.9.1\mingw_64 TranslationsPath: C:\Qt\6.9.1\mingw_64\translations ExamplesPath: C:\Qt\Examples\Qt-6.9.1 TestsPath: C:\Qt\6.9.1\mingw_64\tests SettingsPath: Standard paths [*...* denote writable entry]: DesktopLocation: "Desktop" *C:\Users\jlw_4049\Desktop* DocumentsLocation: "Documents" *C:\Users\jlw_4049\Documents* FontsLocation: "Fonts" *C:\WINDOWS\Fonts* ApplicationsLocation: "Applications" *C:\Users\jlw_4049\AppData\Roaming\Microsoft\Windows\Start Menu\Programs* MusicLocation: "Music" *C:\Users\jlw_4049\Music* MoviesLocation: "Movies" *C:\Users\jlw_4049\Videos* PicturesLocation: "Pictures" *C:\Users\jlw_4049\Pictures* TempLocation: "Temporary Directory" *C:\Users\jlw_4049\AppData\Local\Temp* HomeLocation: "Home" *C:\Users\jlw_4049* AppLocalDataLocation: "Application Data" *C:\Users\jlw_4049\AppData\Local\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.9.1\mingw_64\bin C:\Qt\6.9.1\mingw_64\bin\data C:\Qt\6.9.1\mingw_64\bin\data\QtProject\qtdiag CacheLocation: "Cache" *C:\Users\jlw_4049\AppData\Local\QtProject\qtdiag\cache* GenericDataLocation: "Shared Data" *C:\Users\jlw_4049\AppData\Local* C:\ProgramData C:\Qt\6.9.1\mingw_64\bin C:\Qt\6.9.1\mingw_64\bin\data RuntimeLocation: "Runtime" *C:\Users\jlw_4049* ConfigLocation: "Configuration" *C:\Users\jlw_4049\AppData\Local\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.9.1\mingw_64\bin C:\Qt\6.9.1\mingw_64\bin\data C:\Qt\6.9.1\mingw_64\bin\data\QtProject\qtdiag DownloadLocation: "Download" *C:\Users\jlw_4049\Downloads* GenericCacheLocation: "Shared Cache" *C:\Users\jlw_4049\AppData\Local\cache* GenericConfigLocation: "Shared Configuration" *C:\Users\jlw_4049\AppData\Local* C:\ProgramData C:\Qt\6.9.1\mingw_64\bin C:\Qt\6.9.1\mingw_64\bin\data AppDataLocation: "Application Configuration" *C:\Users\jlw_4049\AppData\Roaming\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.9.1\mingw_64\bin C:\Qt\6.9.1\mingw_64\bin\data C:\Qt\6.9.1\mingw_64\bin\data\QtProject\qtdiag AppConfigLocation: "Application Configuration" *C:\Users\jlw_4049\AppData\Local\QtProject\qtdiag* C:\ProgramData\QtProject\qtdiag C:\Qt\6.9.1\mingw_64\bin C:\Qt\6.9.1\mingw_64\bin\data C:\Qt\6.9.1\mingw_64\bin\data\QtProject\qtdiag File selectors (increasing order of precedence): en_US windows winnt Network: Using "Secure Channel, Windows 10.0.26100", version: 0xa0065f4 Platform capabilities: ThreadedPixmaps OpenGL ThreadedOpenGL WindowMasks MultipleWindows ForeignWindows NonFullScreenWindows NativeWidgets WindowManagement RasterGLSurface AllGLFunctionsQueryable Style hints: mouseDoubleClickInterval: 500 mousePressAndHoldInterval: 800 startDragDistance: 10 startDragTime: 500 startDragVelocity: 0 keyboardInputInterval: 400 keyboardAutoRepeatRateF: 32 cursorFlashTime: 1060 showIsFullScreen: 0 showIsMaximized: 0 passwordMaskDelay: 0 passwordMaskCharacter: U+25CF fontSmoothingGamma: 1.2 useRtlExtensions: 0 setFocusOnTouchRelease: 0 tabFocusBehavior: Qt::TabFocusAllControls singleClickActivation: 0 Additional style hints (QPlatformIntegration): ReplayMousePressOutsidePopup: 1 Theme: Platforms requested : windows available : Styles requested : Windows11,WindowsVista,Windows available : windows11,windowsvista,Windows,Fusion System font : "Segoe UI" 9 Native file dialog Fonts: General font : "Segoe UI" 9 Fixed font : "Courier New" 9 Title font : "Segoe UI" 9 Smallest font: "Segoe UI" 9 Palette: QPalette::WindowText: #ff000000 QPalette::Button: #fff0f0f0 QPalette::Light: #ffffffff QPalette::Midlight: #ffe3e3e3 QPalette::Dark: #ffa0a0a0 QPalette::Mid: #ffa0a0a0 QPalette::Text: #ff000000 QPalette::BrightText: #ffffffff QPalette::ButtonText: #ff000000 QPalette::Base: #ffffffff QPalette::Window: #fff0f0f0 QPalette::Shadow: #ff696969 QPalette::Highlight: #ff0078d4 QPalette::HighlightedText: #ffffffff QPalette::Link: #ff005393 QPalette::LinkVisited: #ff00457b QPalette::AlternateBase: #ffe9e7e3 QPalette::NoRole: #ff000000 QPalette::ToolTipBase: #ffffffdc QPalette::ToolTipText: #ff000000 QPalette::PlaceholderText: #80000000 QPalette::Accent: #ff0064b1 Screens: 2, High DPI scaling: active # 0 "ZOWIE XL LCD" Depth: 32 Primary: yes Manufacturer: BNQ Model: ZOWIE XL LCD Serial number: R1K00732SL0 Geometry: 1536x864+0+0 (native: 1920x1080+0+0) Available: 1536x816+0+0 Virtual geometry: 3456x864+0+0 Available: 3456x816+0+0 2 virtual siblings Physical size: 598x336 mm Refresh: 239.76 Hz Power state: 0 Physical DPI: 65.2415,65.3143 Logical DPI: 96,96 (native: 120,120) Subpixel_None High DPI scaling factor: 1.25 DevicePixelRatio: 1.25 Primary orientation: 2 Orientation: 2 Native orientation: 0 # 1 "ASUS VA27EQSB" Depth: 32 Primary: no Manufacturer: ASUSTek COMPUTER INC Model: ASUS VA27EQSB Serial number: RALMTF171365 Geometry: 1536x864+1920+0 (native: 1920x1080+1920+0) Available: 1536x816+1920+0 Virtual geometry: 3456x864+0+0 Available: 3456x816+0+0 2 virtual siblings Physical size: 598x336 mm Refresh: 74.973 Hz Power state: 0 Physical DPI: 65.2415,65.3143 Logical DPI: 96,96 (native: 120,120) Subpixel_None High DPI scaling factor: 1.25 DevicePixelRatio: 1.25 Primary orientation: 2 Orientation: 2 Native orientation: 0 Dynamic GL LibGL Vendor: NVIDIA Corporation Renderer: NVIDIA GeForce RTX 4080 SUPER/PCIe/SSE2 Version: 4.6.0 NVIDIA 576.88 Shading language: 4.60 NVIDIA Format: Version: 4.6 Profile: 2 Swap behavior: 2 Buffer size (RGBA): 8,8,8,8 Depth buffer: 24 Stencil buffer: 8 Profile: None (QOpenGLFunctions_4_6) Vulkan instance available Supported instance extensions: VK_KHR_device_group_creation, version 1 VK_KHR_display, version 23 VK_KHR_external_fence_capabilities, version 1 VK_KHR_external_memory_capabilities, version 1 VK_KHR_external_semaphore_capabilities, version 1 VK_KHR_get_display_properties2, version 1 VK_KHR_get_physical_device_properties2, version 2 VK_KHR_get_surface_capabilities2, version 1 VK_KHR_surface, version 25 VK_KHR_surface_protected_capabilities, version 1 VK_KHR_win32_surface, version 6 VK_EXT_debug_report, version 10 VK_EXT_debug_utils, version 2 VK_EXT_direct_mode_display, version 1 VK_EXT_surface_maintenance1, version 1 VK_EXT_swapchain_colorspace, version 5 VK_NV_external_memory_capabilities, version 1 VK_KHR_portability_enumeration, version 1 VK_LUNARG_direct_driver_loading, version 1 Supported layers: VK_LAYER_NV_optimus, version 1, spec version 1.4.303, NVIDIA Optimus layer VK_LAYER_NV_present, version 1, spec version 1.4.303, NVIDIA GR2608 layer VK_LAYER_OBS_HOOK, version 1, spec version 1.3.216, Open Broadcaster Software hook VK_LAYER_EOS_Overlay, version 1, spec version 1.2.136, Vulkan overlay layer for Epic Online Services VK_LAYER_VALVE_steam_overlay, version 1, spec version 1.3.207, Steam Overlay Layer VK_LAYER_VALVE_steam_fossilize, version 1, spec version 1.4.303, Steam Pipeline Caching Layer Available physical devices: API version 1.4.303, vendor 0x10DE, device 0x2702, NVIDIA GeForce RTX 4080 SUPER, type 2, driver version 576.352.0 GPU #1: Card name : NVIDIA GeForce RTX 4080 SUPER Driver Name : nvldumdx.dll Driver Version : 32.0.15.7688 Vendor ID : 0x10DE Device ID : 0x2702 SubSys ID : 0x51181462 Revision ID : 0x00A1 GPU #2: Card name : NVIDIA GeForce RTX 4080 SUPER Driver Name : nvldumdx.dll Driver Version : 32.0.15.7688 Vendor ID : 0x10DE Device ID : 0x2702 SubSys ID : 0x51181462 Revision ID : 0x00A1 Qt Rendering Hardware Interface supported backends: OpenGL (with default QSurfaceFormat): Driver Info: Device: NVIDIA Corporation NVIDIA GeForce RTX 4080 SUPER/PCIe/SSE2 4.6.0 NVIDIA 576.88 Device ID: 0x0 Vendor ID: 0x0 Device type: Unknown Min Texture Size: 1 Max Texture Size: 32768 Max Color Attachments: 8 Frames in Flight: 1 Async Readback Limit: 1 MaxThreadGroupsPerDimension: 65535 MaxThreadsPerThreadGroup: 1024 MaxThreadGroupX: 1024 MaxThreadGroupY: 1024 MaxThreadGroupZ: 64 TextureArraySizeMax: 2048 MaxUniformBufferRange: 16384 MaxVertexInputs: 16 MaxVertexOutputs: 31 Uniform Buffer Alignment: 1 Supported MSAA sample counts: 1,2,4,8,16,32 Features: v MultisampleTexture v MultisampleRenderBuffer - DebugMarkers v Timestamps v Instancing - CustomInstanceStepRate v PrimitiveRestart v NonDynamicUniformBuffers v NonFourAlignedEffectiveIndexBufferOffset v NPOTTextureRepeat - RedOrAlpha8IsRed v ElementIndexUint v Compute v WideLines v VertexShaderPointSize v BaseVertex - BaseInstance v TriangleFanTopology v ReadBackNonUniformBuffer v ReadBackNonBaseMipLevel v TexelFetch v RenderToNonBaseMipLevel v IntAttributes v ScreenSpaceDerivatives - ReadBackAnyTextureFormat v PipelineCacheDataLoadSave v ImageDataStride v RenderBufferImport v ThreeDimensionalTextures v RenderTo3DTextureSlice v TextureArrays v Tessellation v GeometryShader - TextureArrayRange v NonFillPolygonMode v OneDimensionalTextures v OneDimensionalTextureMipmaps v HalfAttributes v RenderToOneDimensionalTexture v ThreeDimensionalTextureMipmaps Texture formats: RGBA8 BGRA8 R8 RG8 R16 RG16 RED_OR_ALPHA8 RGBA16F RGBA32F R16F R32F RGB10A2 D16 D32F BC1 BC2 BC3 ETC2_RGB8 ETC2_RGB8A1 ETC2_RGBA8 Vulkan: Driver Info: Device: NVIDIA GeForce RTX 4080 SUPER Device ID: 0x2702 Vendor ID: 0x10DE Device type: Discrete Min Texture Size: 1 Max Texture Size: 32768 Max Color Attachments: 8 Frames in Flight: 2 Async Readback Limit: 2 MaxThreadGroupsPerDimension: 65535 MaxThreadsPerThreadGroup: 1024 MaxThreadGroupX: 1024 MaxThreadGroupY: 1024 MaxThreadGroupZ: 64 TextureArraySizeMax: 2048 MaxUniformBufferRange: 65536 MaxVertexInputs: 32 MaxVertexOutputs: 32 Uniform Buffer Alignment: 64 Supported MSAA sample counts: 1,2,4,8 Features: v MultisampleTexture v MultisampleRenderBuffer v DebugMarkers v Timestamps v Instancing - CustomInstanceStepRate v PrimitiveRestart v NonDynamicUniformBuffers v NonFourAlignedEffectiveIndexBufferOffset v NPOTTextureRepeat v RedOrAlpha8IsRed v ElementIndexUint v Compute v WideLines v VertexShaderPointSize v BaseVertex v BaseInstance v TriangleFanTopology v ReadBackNonUniformBuffer v ReadBackNonBaseMipLevel v TexelFetch v RenderToNonBaseMipLevel v IntAttributes v ScreenSpaceDerivatives v ReadBackAnyTextureFormat v PipelineCacheDataLoadSave v ImageDataStride - RenderBufferImport v ThreeDimensionalTextures - RenderTo3DTextureSlice v TextureArrays v Tessellation v GeometryShader v TextureArrayRange v NonFillPolygonMode v OneDimensionalTextures v OneDimensionalTextureMipmaps v HalfAttributes v RenderToOneDimensionalTexture v ThreeDimensionalTextureMipmaps Texture formats: RGBA8 BGRA8 R8 RG8 R16 RG16 RED_OR_ALPHA8 RGBA16F RGBA32F R16F R32F RGB10A2 D16 D24 D24S8 D32F BC1 BC2 BC3 BC4 BC5 BC6H BC7 Direct3D 11: Driver Info: Device: NVIDIA GeForce RTX 4080 SUPER Device ID: 0x2702 Vendor ID: 0x10DE Device type: Unknown Min Texture Size: 1 Max Texture Size: 16384 Max Color Attachments: 8 Frames in Flight: 1 Async Readback Limit: 1 MaxThreadGroupsPerDimension: 65535 MaxThreadsPerThreadGroup: 1024 MaxThreadGroupX: 1024 MaxThreadGroupY: 1024 MaxThreadGroupZ: 64 TextureArraySizeMax: 2048 MaxUniformBufferRange: 65536 MaxVertexInputs: 32 MaxVertexOutputs: 32 Uniform Buffer Alignment: 256 Supported MSAA sample counts: 1,2,4,8 Features: v MultisampleTexture v MultisampleRenderBuffer v DebugMarkers v Timestamps v Instancing v CustomInstanceStepRate v PrimitiveRestart - NonDynamicUniformBuffers v NonFourAlignedEffectiveIndexBufferOffset v NPOTTextureRepeat v RedOrAlpha8IsRed v ElementIndexUint v Compute - WideLines - VertexShaderPointSize v BaseVertex v BaseInstance - TriangleFanTopology v ReadBackNonUniformBuffer v ReadBackNonBaseMipLevel v TexelFetch v RenderToNonBaseMipLevel v IntAttributes v ScreenSpaceDerivatives v ReadBackAnyTextureFormat v PipelineCacheDataLoadSave v ImageDataStride - RenderBufferImport v ThreeDimensionalTextures v RenderTo3DTextureSlice v TextureArrays v Tessellation v GeometryShader v TextureArrayRange v NonFillPolygonMode v OneDimensionalTextures v OneDimensionalTextureMipmaps v HalfAttributes v RenderToOneDimensionalTexture v ThreeDimensionalTextureMipmaps Texture formats: RGBA8 BGRA8 R8 RG8 R16 RG16 RED_OR_ALPHA8 RGBA16F RGBA32F R16F R32F RGB10A2 D16 D24 D24S8 D32F BC1 BC2 BC3 BC4 BC5 BC6H BC7