Package: chromium
Version: 153.0.8010.52-1~deb13u1
Severity: normal
X-Debbugs-Cc: [email protected]
---
Title: chromium: window from a second launch does not repaint after
maximize when DESKTOP_STARTUP_ID is set (X11, KDE)
Package: chromium
Version: Version: 153.0.8010.52-1~deb13u1
Severity: normal
---
System
- Chromium 153.0.8010.52, Debian 13 (trixie), x86_64
- Kernel: Linux 6.12.107+deb13-amd64
- Desktop: KDE Plasma, KWin, X11 session
- Ozone platform: x11
- GPU: NVIDIA TITAN Xp, NVIDIA proprietary driver 550.163.01
- GL: ANGLE on OpenGL (gl=egl-angle,angle=opengl)
- Displays: two 2560x1440 monitors, scale 1
---
Steps to reproduce
1. Close all Chromium processes that use the test profile.
2. Run this command:
/usr/lib/chromium/chromium --user-data-dir="$HOME/.config/chromium/test"
3. Then, run this command:
DESKTOP_STARTUP_ID=test_TIME0 \
/usr/lib/chromium/chromium \
--user-data-dir="$HOME/.config/chromium/test"
The second process sends its command line to the first process and
exits. The first process opens a new window.
4. Maximize the new window.
Actual result:
The maximized window does not repaint. It does not render the web page
correctly.
Expected result:
The window repaints at the maximized size, the same as the first window.
---
Results of isolation tests
- The first window maximizes correctly.
- A window from Ctrl+N in the first process maximizes correctly.
- A window from step 3 fails.
- The fault stops when step 3 runs without DESKTOP_STARTUP_ID.
- The fault occurs with the binary /usr/lib/chromium/chromium. The
wrapper /usr/bin/chromium is not a factor.
- Google Chrome <output of google-chrome --version> does not show the
fault with the same steps.
- The fault stays with --disable-gpu-compositing. chrome://gpu
confirmed "Compositing: Software only".
- The fault stays without --window-size, --window-position, and
--new-window.
- The fault stays without the Plasma Browser Integration extension.
- The fault stays with KWin compositing suspended (Shift+Alt+F12).
Analysis
The second process forwards its startup ID to the first process. The first
process puts that ID on the new window as _NET_STARTUP_ID. The fault occurs only
on windows with a forwarded ID. This bug does not occur when the google-chrome
binary is used. It is specific to chromium. The exact code path from the ID to
the stale frame is unknown.
Workaround
Unset DESKTOP_STARTUP_ID before the second launch.
Attachment
gpu-hw-compositing.txt: Hardware accelerated
gpu-sw-compositing.txt: Software only. Hardware acceleration disabled
-- System Information:
Debian Release: 13.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.12.107+deb13-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages chromium depends on:
ii chromium-common 153.0.8010.52-1~deb13u1
ii libasound2t64 1.2.14-1+deb13u1
ii libatk-bridge2.0-0t64 2.56.2-1+deb13u2
ii libatk1.0-0t64 2.56.2-1+deb13u2
ii libatspi2.0-0t64 2.56.2-1+deb13u2
ii libc6 2.41-12+deb13u4
ii libcairo2 1.18.4-1+b1
ii libcups2t64 2.4.10-3+deb13u2
ii libdav1d7 1.5.1-1
ii libdbus-1-3 1.16.2-2
ii libdouble-conversion3 3.3.1-1
ii libexpat1 2.8.3-1~deb13u1
ii libflac14 1.5.0+ds-2
ii libfontconfig1 2.15.0-2.3
ii libfreetype6 2.13.3+dfsg-1+deb13u1
ii libgbm1 25.0.7-2+deb13u1
ii libgcc-s1 14.2.0-19
ii libglib2.0-0t64 2.84.4-3~deb13u5
ii libgtk-3-0t64 3.24.49-3
ii libharfbuzz-subset0 10.2.0-1+deb13u1
ii libharfbuzz0b 10.2.0-1+deb13u1
ii libjpeg62-turbo 1:2.1.5-4
ii liblcms2-2 2.16-2+deb13u2
ii libminizip1t64 1:1.3.dfsg+really1.3.1-1+b1
ii libnspr4 2:4.36-1
ii libnss3 2:3.110-1+deb13u4
ii libopenh264-8 2.6.0+dfsg-2
ii libopenjp2-7 2.5.3-2.1~deb13u2
ii libopus0 1.5.2-2
ii libpango-1.0-0 1.56.3-1
ii libpulse0 17.0+dfsg1-2+b1
ii libudev1 257.13-1~deb13u1
ii libx11-6 2:1.8.12-1
ii libxcb1 1.17.0-2+b1
ii libxcomposite1 1:0.4.6-1
ii libxdamage1 1:1.1.6-1+b2
ii libxext6 2:1.3.4-1+b3
ii libxfixes3 1:6.0.0-2+b4
ii libxkbcommon0 1.7.0-2
ii libxnvctrl0 535.171.04-1+b2
ii libxrandr2 2:1.5.4-1+b3
ii libzstd1 1.5.7+dfsg-1
ii xdg-desktop-portal-gtk [xdg-desktop-portal-bac 1.15.3-1
kend]
ii xdg-desktop-portal-kde [xdg-desktop-portal-bac 6.3.5-1
kend]
ii zlib1g 1:1.3.dfsg+really1.3.1-1+b1
Versions of packages chromium recommends:
ii chromium-sandbox 153.0.8010.52-1~deb13u1
Versions of packages chromium suggests:
pn chromium-driver <none>
pn chromium-l10n <none>
pn chromium-shell <none>
Versions of packages chromium-common depends on:
ii libc6 2.41-12+deb13u4
ii libgcc-s1 14.2.0-19
ii x11-utils 7.7+7
ii xdg-utils 1.2.1-2
ii zlib1g 1:1.3.dfsg+really1.3.1-1+b1
Versions of packages chromium-common recommends:
ii chromium-sandbox 153.0.8010.52-1~deb13u1
ii fonts-liberation 1:2.1.5-3
ii libgl1-mesa-dri 25.0.7-2+deb13u1
ii plasma-workspace [notification-daemon] 4:6.3.6-2
ii system-config-printer 1.5.18-4
ii udev 257.13-1~deb13u1
ii upower 1.90.9-1
Versions of packages chromium-sandbox depends on:
ii libc6 2.41-12+deb13u4
-- no debconf information
Graphics Feature Status
=======================
* Canvas: Hardware accelerated
* Direct Rendering Display Compositor: Disabled
* Compositing: Hardware accelerated
* Multiple Raster Threads: Enabled
* OpenGL: Enabled
* Rasterization: Hardware accelerated on all pages
* Raw Draw: Disabled
* Skia Graphite: Disabled
* TreesInViz: Disabled
* Video Decode: Hardware accelerated
* Video Encode: Software only. Hardware acceleration disabled
* Vulkan: Disabled
* WebGL: Hardware accelerated
* WebGPU: Hardware accelerated
* WebGPU interop: Hardware accelerated
* WebNN: Disabled
Version Information
===================
Data exported : 2026-09-24T22:58:35.575Z
Chrome version : Chrome/153.0.8010.52
Operating system : Linux 6.12.107+deb13-amd64
Software rendering list URL:
https://chromium.googlesource.com/chromium/src/+/78e5e45d4bb41035e17ea4da2cc257f496416ac9/gpu/config/software_rendering_list.json
Driver bug list URL :
https://chromium.googlesource.com/chromium/src/+/78e5e45d4bb41035e17ea4da2cc257f496416ac9/gpu/config/gpu_driver_bug_list.json
ANGLE commit id : unknown hash
2D graphics backend : Skia/153 f8b66b7597c4cc859d3ed190e9c6872241e6721c
Command Line : /usr/lib/chromium/chromium
--show-component-extension-options --enable-gpu-rasterization
--no-default-browser-check --disable-pings --media-router=0
--enable-remote-extensions
--load-extension=/usr/share/chromium/extensions/plasma-browser-integration
--name=foobar --user-data-dir=/home/test-user/.config/chromium/foobar
--ozone-platform=x11 --flag-switches-begin --flag-switches-end
--origin-trial-disabled-features=CanvasTextNg|WebAssemblyCustomDescriptors
Driver Information
==================
Initialization time : 362
In-process GPU : false
Skia Backend : GaneshGL
Passthrough Command Decoder : true
Sandboxed : true
GPU0 : VENDOR= 0x10de [Google Inc. (NVIDIA
Corporation)], DEVICE=0x1b02 [ANGLE (NVIDIA Corporation, NVIDIA TITAN
Xp/PCIe/SSE2, OpenGL 4.5.0 NVIDIA 550.163.01)], DRIVER_VENDOR=Nvidia,
DRIVER_VERSION=550.163.01 *ACTIVE*
Optimus : false
AMD switchable : false
Pixel shader version : 3.00
Vertex shader version : 3.00
Max. MSAA samples : 8
Machine model name :
Machine model version :
GL implementation parts : (gl=egl-angle,angle=opengl)
Display type : ANGLE_OPENGL
GL_VENDOR : Google Inc. (NVIDIA Corporation)
GL_RENDERER : ANGLE (NVIDIA Corporation, NVIDIA TITAN
Xp/PCIe/SSE2, OpenGL 4.5.0 NVIDIA 550.163.01)
GL_VERSION : OpenGL ES 3.0 (ANGLE 2.1 git hash: unknown
hash)
GL_EXTENSIONS : GL_AMD_performance_monitor
GL_ANGLE_blob_cache GL_ANGLE_client_arrays GL_ANGLE_clip_cull_distance
GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit
GL_ANGLE_framebuffer_multisample GL_ANGLE_get_serialized_context_string
GL_ANGLE_get_tex_level_parameter GL_ANGLE_instanced_arrays GL_ANGLE_logic_op
GL_ANGLE_memory_size GL_ANGLE_multiview_multisample GL_ANGLE_polygon_mode
GL_ANGLE_program_binary_readiness_query GL_ANGLE_program_cache_control
GL_ANGLE_provoking_vertex GL_ANGLE_renderability_validation
GL_ANGLE_request_extension GL_ANGLE_robust_client_memory
GL_ANGLE_shader_pixel_local_storage
GL_ANGLE_shader_pixel_local_storage_coherent GL_ANGLE_stencil_texturing
GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5
GL_ANGLE_texture_multisample GL_ANGLE_texture_rectangle
GL_ANGLE_translated_shader_source GL_APPLE_clip_distance GL_ARM_rgba8
GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location
GL_CHROMIUM_copy_texture GL_CHROMIUM_lose_context GL_EXT_blend_func_extended
GL_EXT_blend_minmax GL_EXT_clear_texture GL_EXT_clip_control
GL_EXT_clip_cull_distance GL_EXT_color_buffer_float
GL_EXT_color_buffer_half_float GL_EXT_compressed_ETC1_RGB8_sub_texture
GL_EXT_conservative_depth GL_EXT_debug_label GL_EXT_debug_marker
GL_EXT_depth_clamp GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query
GL_EXT_draw_buffers GL_EXT_draw_buffers_indexed GL_EXT_float_blend
GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range
GL_EXT_memory_object GL_EXT_memory_object_fd GL_EXT_multisample_compatibility
GL_EXT_occlusion_query_boolean GL_EXT_polygon_offset_clamp
GL_EXT_read_format_bgra GL_EXT_render_snorm GL_EXT_robustness GL_EXT_sRGB
GL_EXT_sRGB_write_control GL_EXT_semaphore GL_EXT_semaphore_fd
GL_EXT_shader_texture_lod GL_EXT_shadow_samplers GL_EXT_texture_border_clamp
GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1
GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc_srgb
GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888
GL_EXT_texture_mirror_clamp_to_edge GL_EXT_texture_norm16 GL_EXT_texture_rg
GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_shadow_lod
GL_EXT_texture_storage GL_EXT_texture_type_2_10_10_10_REV
GL_EXT_unpack_subimage GL_KHR_blend_equation_advanced
GL_KHR_blend_equation_advanced_coherent GL_KHR_debug
GL_KHR_parallel_shader_compile GL_KHR_robustness GL_NV_fence
GL_NV_framebuffer_blit GL_NV_pack_subimage GL_NV_pixel_buffer_object
GL_NV_polygon_mode GL_NV_read_depth GL_NV_read_stencil
GL_NV_robustness_video_memory_purge GL_NV_shader_noperspective_interpolation
GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth24 GL_OES_depth32
GL_OES_depth_texture GL_OES_draw_buffers_indexed GL_OES_element_index_uint
GL_OES_fbo_render_mipmap GL_OES_get_program_binary GL_OES_mapbuffer
GL_OES_packed_depth_stencil GL_OES_required_internalformat GL_OES_rgb8_rgba8
GL_OES_sample_variables GL_OES_shader_multisample_interpolation
GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_3D
GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear
GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot
GL_OES_texture_stencil8 GL_OES_texture_storage_multisample_2d_array
GL_OES_vertex_array_object GL_OVR_multiview GL_OVR_multiview2
Disabled Extensions : GL_KHR_blend_equation_advanced
GL_KHR_blend_equation_advanced_coherent GL_MESA_framebuffer_flip_y
Disabled WebGL Extensions :
Window system binding vendor : Google Inc. (NVIDIA Corporation)
Window system binding version : 1.5 (ANGLE 2.1 git hash: unknown hash)
Window system binding extensions: EGL_EXT_create_context_robustness
EGL_KHR_create_context EGL_KHR_get_all_proc_addresses
EGL_ANGLE_create_context_webgl_compatibility
EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXT_pixel_format_float
EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group
EGL_ANGLE_display_semaphore_share_group EGL_ANGLE_create_context_client_arrays
EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization
EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache
EGL_ANDROID_recordable EGL_ANGLE_create_context_backwards_compatible
EGL_KHR_create_context_no_error EGL_NOK_texture_from_pixmap
EGL_NV_robustness_video_memory_purge EGL_KHR_reusable_sync
EGL_ANGLE_context_virtualization EGL_ANGLE_memory_usage_report
XDG_CURRENT_DESKTOP : KDE
XDG_SESSION_TYPE : x11
Ozone platform : x11
Direct rendering version : unknown
Reset notification strategy : 0x8252
GPU process crash count : 0
Driver Bug Workarounds
======================
* disable_discard_framebuffer
* disable_rgb_to_yuv_conversion
* enable_webgl_timer_query_extensions
* exit_on_context_lost
* force_cube_complete
* init_gl_position_in_vertex_shader
* unpack_overlapping_rows_separately_unpack_buffer
* disabled_extension_GL_KHR_blend_equation_advanced
* disabled_extension_GL_KHR_blend_equation_advanced_coherent
* disabled_extension_GL_MESA_framebuffer_flip_y
Problems Detected
=================
* Accelerated video encode has been disabled, either via blocklist,
about:flags or the command line.
Disabled Features: video_encode
* Program link fails in NVIDIA Linux if gl_Position is not set:
(http://crbug.com/286468)
Applied Workarounds: init_gl_position_in_vertex_shader
* NVIDIA fails glReadPixels from incomplete cube map texture:
(http://crbug.com/518889)
Applied Workarounds: force_cube_complete
* Framebuffer discarding can hurt performance on non-tilers:
(http://crbug.com/570897)
Applied Workarounds: disable_discard_framebuffer
* Unpacking overlapping rows from unpack buffers is unstable on NVIDIA GL
driver:
(http://crbug.com/596774)
Applied Workarounds: unpack_overlapping_rows_separately_unpack_buffer
* Disable KHR_blend_equation_advanced until cc shaders are updated:
(http://crbug.com/661715)
Applied Workarounds: disable(GL_KHR_blend_equation_advanced),
disable(GL_KHR_blend_equation_advanced_coherent)
* Expose WebGL's disjoint_timer_query extensions on platforms with site
isolation:
(http://crbug.com/808744), (http://crbug.com/870491)
Applied Workarounds: enable_webgl_timer_query_extensions
* Some drivers can't recover after OUT_OF_MEM and context lost:
(http://crbug.com/893177)
Applied Workarounds: exit_on_context_lost
* Disable GL_MESA_framebuffer_flip_y for desktop GL:
(http://crbug.com/964010)
Applied Workarounds: disable(GL_MESA_framebuffer_flip_y)
* Disable RGB to YUV hardware conversion on NVIDIA Linux:
(http://crbug.com/447709687)
Applied Workarounds: disable_rgb_to_yuv_conversion
ANGLE Features
==============
* allowCompressedFormats (Frontend workarounds): Enabled
* allowExtensionDisableAfterNonPpTokens (Frontend features): Disabled
* alwaysEnableEmulatedMultidrawExtensions (Frontend workarounds): Disabled
* alwaysRunLinkSubJobsThreaded (Frontend features): Disabled
* cacheCompiledShader (Frontend features): Enabled
* clipCullDistanceBrokenWithPassthroughShaders (Frontend features): Disabled
* compileJobIsThreadSafe (Frontend features): Disabled
* compressProgramBinaryBlob (Frontend features): Disabled
* disableAnisotropicFiltering (Frontend workarounds): Disabled
* disableProgramBinary (Frontend features): Disabled
* disableProgramCaching (Frontend features): Disabled
* disableProgramCachingForTransformFeedback (Frontend workarounds): Disabled
* dumpShaderSource (Frontend features): Disabled
* dumpTranslatedShaders (Frontend features): Disabled
* emulatePixelLocalStorage (Frontend features): Enabled
* enableCaptureLimits (Frontend features): Disabled
* enableCreateContextBackwardsCompatible (Frontend features): Enabled
* enableProgramBinaryForCapture (Frontend features): Disabled
* enableShaderSubstitution (Frontend workarounds): Disabled
* enableTranslatedShaderSubstitution (Frontend workarounds): Disabled
* forceDebugContexts (Frontend features): Disabled
* forceDepthAttachmentInitOnClear (Frontend workarounds): Disabled
* forceFlushAfterDrawcallUsingShadowmap (Frontend workarounds): Disabled
* forceGlErrorChecking (Frontend features): Disabled
* forceInitShaderVariables (Frontend features): Disabled
* forceMinimumMaxVertexAttributes (Frontend features): Disabled
* forcePassthroughShaders (Frontend features): Disabled
* forceRobustResourceInit (Frontend features): Disabled
* limitMaxBufferBytesTo1MB (Frontend features): Disabled
* limitMaxTextureBytesTo1MB (Frontend features): Disabled
* linkJobIsThreadSafe (Frontend features): Disabled
* loseContextOnOutOfMemory (Frontend workarounds): Enabled
* loseHardenedContextOnBackendError (Frontend workarounds): Enabled
* noperspectiveInterpolationBrokenWithPassthroughShaders (Frontend features):
Disabled
* setNeedInitOnInvalidation (Frontend features): Enabled
* singleThreadedTextureDecompression (Frontend workarounds): Disabled
* uncurrentEglSurfaceUponSurfaceDestroy (Frontend workarounds): Disabled
* useIr (Frontend features): Disabled
* RGBA4IsNotSupportedForColorRendering (OpenGL workarounds): Disabled
* RGBDXT1TexturesSampleZeroAlpha (OpenGL workarounds): Disabled
* addAndTrueToLoopCondition (OpenGL workarounds): Disabled
* adjustSrcDstRegionForBlitFramebuffer (OpenGL workarounds): Enabled
* allowAstcFormats (OpenGL workarounds): Enabled
* allowClearForRobustResourceInit (OpenGL workarounds): Disabled
* allowETCFormats (OpenGL workarounds): Disabled
* alwaysCallUseProgramAfterLink (OpenGL workarounds): Enabled
* alwaysUnbindFramebufferTexture2D (OpenGL workarounds): Enabled
* avoid1BitAlphaTextureFormats (OpenGL workarounds): Disabled
* avoidBindFragDataLocation (OpenGL workarounds): Disabled
* avoidComplexExpressionsInStructConstructor (OpenGL workarounds): Disabled
* bgraTexImageFormatsBroken (OpenGL workarounds): Disabled
* bindCompleteFramebufferForTimerQueries (OpenGL workarounds): Disabled
* bindTransformFeedbackBufferBeforeBindBufferRange (OpenGL workarounds):
Disabled
* clampArrayAccess (OpenGL workarounds): Disabled
* clampFragDepth (OpenGL workarounds): Enabled
* clampMscRate (OpenGL workarounds): Disabled
* clampPointSize (OpenGL workarounds): Enabled
* clearsWithGapsNeedFlush (OpenGL workarounds): Disabled
* clipSrcRegionForBlitFramebuffer (OpenGL workarounds): Disabled
* corruptProgramBinaryForTesting (OpenGL workarounds): Disabled
* decodeEncodeSRGBForGenerateMipmap (OpenGL workarounds): Disabled
* disableBaseInstanceVertex (OpenGL workarounds): Enabled
* disableBlendEquationAdvanced (OpenGL workarounds): Disabled
* disableClearTexImageForRobustInit (OpenGL workarounds): Disabled
* disableClearTexture (OpenGL workarounds): Disabled
* disableClipControl (OpenGL features): Disabled
* disableDrawBuffersIndexed (OpenGL workarounds): Disabled
* disableGPUSwitchingSupport (OpenGL workarounds): Disabled
* disableMSAASampleCount1 (OpenGL workarounds): Disabled
* disableMultisampledRenderToTexture (OpenGL workarounds): Disabled
* disableNativeParallelCompile (OpenGL workarounds): Disabled
* disablePassthroughShaders (OpenGL workarounds): Disabled
* disableRenderSnorm (OpenGL workarounds): Disabled
* disableSemaphoreFd (OpenGL workarounds): Disabled
* disableSyncControlSupport (OpenGL workarounds): Disabled
* disableTextureClampToBorder (OpenGL workarounds): Disabled
* disableTextureMirrorClampToEdge (OpenGL workarounds): Disabled
* disableTiledRendering (OpenGL workarounds): Disabled
* disableTimestampQueries (OpenGL workarounds): Disabled
* doesSRGBClearsOnLinearFramebufferAttachments (OpenGL workarounds): Disabled
* dontInitializeUninitializedLocals (OpenGL workarounds): Disabled
* dontInvalidateIncompleteFBOs (OpenGL workarounds): Disabled
* dontUseLoopsToInitializeVariables (OpenGL workarounds): Disabled
* emitMaxGlsl400ForTesting (OpenGL workarounds): Disabled
* emulateAbsIntFunction (OpenGL workarounds): Disabled
* emulateAtan2Float (OpenGL workarounds): Enabled
* emulateClipDistanceState (OpenGL workarounds): Disabled
* emulateClipOrigin (OpenGL workarounds): Disabled
* emulateCopyTexImage2D (OpenGL workarounds): Disabled
* emulateCopyTexImage2DFromRenderbuffers (OpenGL workarounds): Disabled
* emulateImmutableCompressedTexture3D (OpenGL workarounds): Disabled
* emulateMaxVertexAttribStride (OpenGL workarounds): Disabled
* emulatePackSkipRowsAndPackSkipPixels (OpenGL workarounds): Disabled
* emulatePrimitiveRestartFixedIndex (OpenGL workarounds): Disabled
* emulateRGB10 (OpenGL workarounds): Enabled
* ensureNonEmptyBufferIsBoundForDraw (OpenGL features): Disabled
* expandFragmentOutputsToVec4 (OpenGL workarounds): Disabled
* explicitFragmentLocations (OpenGL workarounds): Disabled
* finishBeforeBlitFramebufferMultiAttachment (OpenGL workarounds): Disabled
* finishDoesNotCauseQueriesToBeAvailable (OpenGL workarounds): Enabled
* flushBeforeDeleteTextureIfCopiedTo (OpenGL workarounds): Disabled
* flushBeforeGenerateMipmap (OpenGL workarounds): Disabled
* flushOnFramebufferChange (OpenGL workarounds): Disabled
* flushQueriesBeforeDeletingOrUnbindingFbo (OpenGL workarounds): Disabled
* forceLumaWorkaroundForSameTextureCopyTexImage2D (OpenGL workarounds):
Disabled
* forceMaxCombinedShaderOutputResources (OpenGL features): Enabled
* initFragmentOutputVariables (OpenGL workarounds): Disabled
* initializeCurrentVertexAttributes (OpenGL workarounds): Enabled
* keepBufferShadowCopy (OpenGL workarounds): Disabled
* limitMax3dArrayTextureSizeTo1024 (OpenGL workarounds): Disabled
* limitMaxBufferSizeTo1gb (OpenGL workarounds): Disabled
* limitMaxMSAASamplesTo4 (OpenGL workarounds): Disabled
* limitOutputVaryingsTo256AtCompileTime (OpenGL workarounds): Disabled
* limitWebglMaxTextureSizeTo4096 (OpenGL workarounds): Disabled
* limitWebglMaxTextureSizeTo8192 (OpenGL workarounds): Disabled
* multiviewViaViewportArray (OpenGL features): Enabled
* packLargeRowLengthSeparatelyPackBuffer (OpenGL workarounds): Disabled
* packLastRowSeparatelyForPaddingInclusion (OpenGL workarounds): Enabled
* packOverlappingRowsSeparatelyPackBuffer (OpenGL workarounds): Enabled
* passHighpToPackUnormSnormBuiltins (OpenGL workarounds): Disabled
* preAddTexelFetchOffsets (OpenGL workarounds): Disabled
* preTransformTextureCubeGradDerivatives (OpenGL workarounds): Disabled
* promotePackedFormatsTo8BitPerChannel (OpenGL workarounds): Disabled
* queryCounterBitsGeneratesErrors (OpenGL workarounds): Disabled
* readPixelsUsingImplementationColorReadFormatForNorm16 (OpenGL workarounds):
Disabled
* reapplyUBOBindingsAfterUsingBinaryProgram (OpenGL workarounds): Disabled
* reattachFboDepthStencilOnReallocation (OpenGL workarounds): Disabled
* reattachTextureToFboAfterLayerIncrease (OpenGL workarounds): Disabled
* recreateImmutableTextureOnBaseLevelIncrease (OpenGL workarounds): Disabled
* recreateMipmapLevelsBeforeGenerate (OpenGL workarounds): Disabled
* removeDynamicIndexingOfSwizzledVector (OpenGL workarounds): Disabled
* removeInvariantAndCentroidForESSL3 (OpenGL workarounds): Disabled
* resetBaseLevelForASTCSubImage (OpenGL workarounds): Disabled
* resetSampleCoverageOnFBOChange (OpenGL workarounds): Disabled
* resetTexImage2DBaseLevel (OpenGL workarounds): Disabled
* resyncDepthRangeOnClipControl (OpenGL workarounds): Disabled
* rewriteRepeatedAssignToSwizzled (OpenGL workarounds): Enabled
* rewriteRowMajorMatrices (OpenGL workarounds): Disabled
* sanitizeAMDGPURendererString (OpenGL workarounds): Disabled
* scalarizeVecAndMatConstructorArgs (OpenGL workarounds): Enabled
* setPrimitiveRestartFixedIndexForDrawArrays (OpenGL workarounds): Disabled
* setZeroLevelBeforeGenerateMipmap (OpenGL workarounds): Disabled
* shiftInstancedArrayDataWithOffset (OpenGL workarounds): Disabled
* splitLevel0PboFullSubImage2D (OpenGL workarounds): Disabled
* srgbBlendingBroken (OpenGL workarounds): Disabled
* supportsFragmentShaderInterlockARB (OpenGL features): Enabled
* supportsFragmentShaderInterlockNV (OpenGL features): Enabled
* supportsFragmentShaderOrderingINTEL (OpenGL features): Disabled
* supportsShaderFramebufferFetchEXT (OpenGL features): Disabled
* supportsShaderFramebufferFetchNonCoherentEXT (OpenGL features): Disabled
* syncAllVertexArraysToDefault (OpenGL workarounds): Disabled
* syncDefaultVertexArraysToDefault (OpenGL workarounds): Disabled
* unbindFBOBeforeSwitchingContext (OpenGL workarounds): Disabled
* unfoldShortCircuits (OpenGL workarounds): Disabled
* unpackLastRowSeparatelyForPaddingInclusion (OpenGL workarounds): Enabled
* unpackOverlappingRowsSeparatelyUnpackBuffer (OpenGL workarounds): Enabled
* unsizedSRGBReadPixelsDoesntTransform (OpenGL workarounds): Disabled
* uploadOversizedMipLevelsViaUnpackBuffer (OpenGL workarounds): Disabled
* uploadTextureDataInChunks (OpenGL workarounds): Disabled
* useIntermediateTextureForGenerateMipmap (OpenGL workarounds): Disabled
* useTempForNonZeroBaseLevelGenMipmapUsingCopyImageSubData (OpenGL
workarounds): Disabled
* useUnusedBlocksWithStandardOrSharedLayout (OpenGL workarounds): Disabled
* validateMaxPerStageUniformBlocksAtCompileTime (OpenGL workarounds): Disabled
* validateState (OpenGL features): Disabled
* vertexIDDoesNotIncludeBaseVertex (OpenGL workarounds): Disabled
Dawn Info
=========
<Unknown GPU> OpenGLES backend - ANGLE (NVIDIA Corporation, NVIDIA TITAN
Xp/PCIe/SSE2, OpenGL 4.5.0 NVIDIA 550.163.01) (Compatibility Mode)
--------------------------------------------------------------------------------------------------------------------------------------------
[WebGPU Status]
---------------
* Available
[Adapter Supported Features]
----------------------------
* texture-compression-bc
* float32blendable
* dual-source-blending
* texture-component-swizzle
* dawn-internal-usages
* dawn-native
* implicit-device-synchronization
* transient-attachments
* angle-texture-sharing
* unorm16texture-formats
* dawn-format-capabilities
* unorm16formats-for-external-texture
* dawn-allow-undefined-load-store-op
[Enabled Toggle Names]
----------------------
* lazy_clear_resource_on_first_use:
(https://crbug.com/dawn/145):
Clears resource to zero on first usage. This initializes the resource so
that no dirty bits from recycled memory is present in the new resource.
* disable_indexed_draw_buffers:
(https://crbug.com/dawn/582):
Disables the use of indexed draw buffer state which is unsupported on some
platforms.
* flush_before_client_wait_sync:
(https://crbug.com/dawn/633):
Call glFlush before glClientWaitSync to work around bugs in the latter
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* use_placeholder_fragment_in_vertex_only_pipeline:
(https://crbug.com/dawn/136):
Use a placeholder empty fragment shader in vertex only render pipeline.
This toggle must be enabled for OpenGL ES backend, the Vulkan Backend, and
serves as a workaround by default enabled on some Metal devices with Intel
GPU to ensure the depth result is correct.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
* use_blit_for_buffer_to_stencil_texture_copy:
(https://crbug.com/dawn/1389):
Use a blit instead of a copy command to copy buffer data to the stencil
aspect of a texture. Works around an issue where stencil writes by copy
commands are not visible to a render or compute pass.
* use_blit_for_depth16unorm_texture_to_buffer_copy:
(https://crbug.com/dawn/1782):
Use a blit instead of a copy command to copy depth aspect of a texture to
a buffer.Workaround for OpenGL and OpenGLES.
* use_blit_for_depth32float_texture_to_buffer_copy:
(https://crbug.com/dawn/1782):
Use a blit instead of a copy command to copy depth aspect of a texture to
a buffer.Workaround for OpenGLES.
* use_blit_for_stencil_texture_to_buffer_copy:
(https://crbug.com/dawn/1782):
Use a blit instead of a copy command to copy stencil aspect of a texture
to a buffer.Workaround for OpenGLES.
* use_blit_for_snorm_texture_to_buffer_copy:
(https://crbug.com/dawn/1781):
Use a blit instead of a copy command to copy snorm texture to a
buffer.Workaround for OpenGLES.
* use_blit_for_rgb9e5ufloat_texture_copy:
(https://crbug.com/dawn/2079):
Use a blit instead of a copy command to copy rgb9e5ufloat texture to a
texture or a buffer.Workaround for OpenGLES.
* gl_use_array_length_from_uniform:
(https://crbug.com/dawn/379805731):
Use arrayLengthFromUniform transform to replace arrayLength() function
calls of dynamic storage buffers.This toggle is only used for workarounds
on certain devices. It has no impact on backends which need this transform
universally (metal, d3d12)
* use_t2b2t_for_srgb_texture_copy:
(https://crbug.com/dawn/2362):
Use T2B and B2T copies to emulate a T2T copy between sRGB and non-sRGB
textures.Workaround for OpenGLES.
* gl_depth_bias_modifier:
(https://crbug.com/42241017):
Empirically some GL drivers select n+1 when a depth value lies between 2^n
and 2^(n+1), while the WebGPU CTS is expecting n. Scale the depth bias
value by multiple 0.5 on certain backends to achieve conformant result.
* enable_integer_range_analysis_in_robustness:
(https://crbug.com/348701956):
Compute the range of the index with Integer Range Analysis in the
robustness transform and skip doing index clamping when the out of bound
access cannot happen.
* blob_cache_hash_validation:
(https://crbug.com/429938352):
Enable hash validation when loading/storing from/to the blob cache
* decompose_uniform_buffers:
(https://crbug.com/448452698):
Decompose uniform buffers into arrays of vec4<u32> on backends for Vulkan
and OpenGL.
[WebGPU Required Toggles - enabled]
-----------------------------------
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
<CPU> Vulkan backend - SwiftShader Device (Subzero)
----------------------------------------------------
[WebGPU Status]
---------------
* Blocklisted - crbug.com/40057808: CPU adapters not fully tested or
conformant. |
[Adapter Supported Features]
----------------------------
* core-features-and-limits
* depth-clip-control
* depth32float-stencil8
* texture-compression-bc
* texture-compression-bc-sliced-3d
* texture-compression-etc2
* texture-compression-astc
* texture-compression-astc-sliced-3d
* timestamp-query
* indirect-first-instance
* rg11b10ufloat-renderable
* bgra8unorm-storage
* float32filterable
* float32blendable
* clip-distances
* subgroups
* texture-component-swizzle
* subgroup-size-control
* dawn-internal-usages
* dawn-multi-planar-formats
* dawn-native
* implicit-device-synchronization
* transient-attachments
* unorm16texture-formats
* adapter-properties-memory-heaps
* adapter-properties-vk
* dawn-format-capabilities
* shared-texture-memory-opaque-fd
* shared-fence-vk-semaphore-opaque-fd
* dawn-load-resolve-texture
* flexible-texture-views
* unorm16formats-for-external-texture
* dawn-allow-undefined-load-store-op
[Enabled Toggle Names]
----------------------
* lazy_clear_resource_on_first_use:
(https://crbug.com/dawn/145):
Clears resource to zero on first usage. This initializes the resource so
that no dirty bits from recycled memory is present in the new resource.
* use_temporary_buffer_in_texture_to_texture_copy:
(https://crbug.com/dawn/42):
Split texture-to-texture copy into two copies: copy from source texture
into a temporary buffer, and copy from the temporary buffer into the
destination texture when copying between compressed textures that don't
have block-aligned sizes. This workaround is enabled by default on all
Vulkan drivers to solve an issue in the Vulkan SPEC about the
texture-to-texture copies with compressed formats. See #1005
(https://github.com/KhronosGroup/Vulkan-Docs/issues/1005) for more
details.
* vulkan_use_d32s8:
(https://crbug.com/dawn/286):
Vulkan mandates support of either D32_FLOAT_S8 or D24_UNORM_S8. When
available the backend will use D32S8 (toggle to on) but setting the toggle
to off will make it use the D24S8 format when possible.
* vulkan_use_s8:
(https://crbug.com/dawn/666):
Vulkan has a pure stencil8 format but it is not universally available.
When this toggle is on, the backend will use S8 for the stencil8 format,
otherwise it will fallback to D32S8 or D24S8.
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* vulkan_use_demote_to_helper_invocation_extension:
(https://crbug.com/42250787):
Sets the use of the vulkan demote to helper extension
* use_placeholder_fragment_in_vertex_only_pipeline:
(https://crbug.com/dawn/136):
Use a placeholder empty fragment shader in vertex only render pipeline.
This toggle must be enabled for OpenGL ES backend, the Vulkan Backend, and
serves as a workaround by default enabled on some Metal devices with Intel
GPU to ensure the depth result is correct.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
* use_vulkan_zero_initialize_workgroup_memory_extension:
(https://crbug.com/dawn/1302):
Initialize workgroup memory with OpConstantNull on Vulkan when the Vulkan
extension VK_KHR_zero_initialize_workgroup_memory is supported.
* use_vulkan_memory_model:
(https://crbug.com/392606604):
Use the Vulkan Memory Model if available.
* vulkan_direct_variable_access_transform_handle:
(https://crbug.com/387000529):
Transform handles using direct variable access.
* enable_integer_range_analysis_in_robustness:
(https://crbug.com/348701956):
Compute the range of the index with Integer Range Analysis in the
robustness transform and skip doing index clamping when the out of bound
access cannot happen.
* use_spirv_1_4:
(https://crbug.com/422421915):
Use SPIR-V 1.4 if available
* blob_cache_hash_validation:
(https://crbug.com/429938352):
Enable hash validation when loading/storing from/to the blob cache
* decompose_uniform_buffers:
(https://crbug.com/448452698):
Decompose uniform buffers into arrays of vec4<u32> on backends for Vulkan
and OpenGL.
* vulkan_use_dynamic_rendering:
(https://crbug.com/dawn/463893794):
Makes use of VK_KHR_dynamic_rendering to implement WebGPU RenderPass.
* enable_spirv_validation:
(https://crbug.com/473526415):
Enable validation of SPIR-V generated by Tint.
* vulkan_use_create_render_pass_2:
(https://crbug.com/chromium/463893793):
Makes use of VK_KHR_create_renderpass2 when creating VkRenderPass objects.
Ignored when vulkan_use_dynamic_rendering is enabled.
* wait_is_thread_safe:
(https://crbug.com/412761228):
WaitFor* functions are thread-safe and can be called without the
device-lock if implicit synchronization is enabled.
[WebGPU Required Toggles - enabled]
-----------------------------------
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
Compositor Information
======================
Tile Update Mode: One-copy
Partial Raster : Enabled
Display(s) Information
======================
Info : Display[3] bounds=[0,0 2560x1440],
workarea=[70,0 2490x1396], scale=1, rotation=0, panel_rotation=0 external
detected
Color space (all) : {primaries:BT709, transfer:SRGB, matrix:RGB,
range:FULL}
Buffer format (all) : BGRA_8888
Color volume : {name:'srgb', r:[0.6400, 0.3300], g:[0.3000,
0.6000], b:[0.1500, 0.0600], w:[0.3127, 0.3290]}
SDR white level in nits : 203
HDR relative maximum luminance: 1
Bits per color component : 8
Bits per pixel : 24
Refresh Rate in Hz : 59.9505500793457
Info : Display[5] bounds=[2560,0 2560x1440],
workarea=[2560,0 2560x1440], scale=1, rotation=0, panel_rotation=0 external
detected
Color space (all) : {primaries:BT709, transfer:SRGB, matrix:RGB,
range:FULL}
Buffer format (all) : BGRA_8888
Color volume : {name:'srgb', r:[0.6400, 0.3300], g:[0.3000,
0.6000], b:[0.1500, 0.0600], w:[0.3127, 0.3290]}
SDR white level in nits : 203
HDR relative maximum luminance: 1
Bits per color component : 8
Bits per pixel : 24
Refresh Rate in Hz : 59.9505500793457
Video Acceleration Information
==============================
Decoding:
Encoding:
Vulkan Information
==================
Device Performance Information
==============================
Log Messages
============
[60171:60171:0924/155709.472319:WARNING:media/gpu/vaapi/vaapi_wrapper.cc:130] :
Should skip nVidia device named: nvidia-drm
Graphics Feature Status
=======================
* Canvas: Hardware accelerated
* Direct Rendering Display Compositor: Disabled
* Compositing: Software only. Hardware acceleration disabled
* Multiple Raster Threads: Enabled
* OpenGL: Enabled
* Rasterization: Hardware accelerated on all pages
* Raw Draw: Disabled
* Skia Graphite: Disabled
* TreesInViz: Disabled
* Video Decode: Hardware accelerated
* Video Encode: Software only. Hardware acceleration disabled
* Vulkan: Disabled
* WebGL: Hardware accelerated but at reduced performance
* WebGPU: Hardware accelerated but at reduced performance
* WebGPU interop: Hardware accelerated
* WebNN: Disabled
Version Information
===================
Data exported : 2026-09-24T23:10:23.061Z
Chrome version : Chrome/153.0.8010.52
Operating system : Linux 6.12.107+deb13-amd64
Software rendering list URL:
https://chromium.googlesource.com/chromium/src/+/78e5e45d4bb41035e17ea4da2cc257f496416ac9/gpu/config/software_rendering_list.json
Driver bug list URL :
https://chromium.googlesource.com/chromium/src/+/78e5e45d4bb41035e17ea4da2cc257f496416ac9/gpu/config/gpu_driver_bug_list.json
ANGLE commit id : unknown hash
2D graphics backend : Skia/153 f8b66b7597c4cc859d3ed190e9c6872241e6721c
Command Line : /usr/lib/chromium/chromium
--show-component-extension-options --enable-gpu-rasterization
--no-default-browser-check --disable-pings --media-router=0
--enable-remote-extensions
--load-extension=/usr/share/chromium/extensions/plasma-browser-integration
--name=foobar --new-window --disable-gpu-compositing --window-size=1024,768
--window-position=362,172
--user-data-dir=/home/test-user/.config/chromium/foobar --disk-cache-size=1
--media-cache-size=1 --enable-logging=stderr --v=1 --ozone-platform=x11
--flag-switches-begin --flag-switches-end
--origin-trial-disabled-features=CanvasTextNg|WebAssemblyCustomDescriptors
Driver Information
==================
Initialization time : 368
In-process GPU : false
Skia Backend : GaneshGL
Passthrough Command Decoder : true
Sandboxed : true
GPU0 : VENDOR= 0x10de [Google Inc. (NVIDIA
Corporation)], DEVICE=0x1b02 [ANGLE (NVIDIA Corporation, NVIDIA TITAN
Xp/PCIe/SSE2, OpenGL 4.5.0 NVIDIA 550.163.01)], DRIVER_VENDOR=Nvidia,
DRIVER_VERSION=550.163.01 *ACTIVE*
Optimus : false
AMD switchable : false
Pixel shader version : 3.00
Vertex shader version : 3.00
Max. MSAA samples : 8
Machine model name :
Machine model version :
GL implementation parts : (gl=egl-angle,angle=opengl)
Display type : ANGLE_OPENGL
GL_VENDOR : Google Inc. (NVIDIA Corporation)
GL_RENDERER : ANGLE (NVIDIA Corporation, NVIDIA TITAN
Xp/PCIe/SSE2, OpenGL 4.5.0 NVIDIA 550.163.01)
GL_VERSION : OpenGL ES 3.0 (ANGLE 2.1 git hash: unknown
hash)
GL_EXTENSIONS : GL_AMD_performance_monitor
GL_ANGLE_blob_cache GL_ANGLE_client_arrays GL_ANGLE_clip_cull_distance
GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit
GL_ANGLE_framebuffer_multisample GL_ANGLE_get_serialized_context_string
GL_ANGLE_get_tex_level_parameter GL_ANGLE_instanced_arrays GL_ANGLE_logic_op
GL_ANGLE_memory_size GL_ANGLE_multiview_multisample GL_ANGLE_polygon_mode
GL_ANGLE_program_binary_readiness_query GL_ANGLE_program_cache_control
GL_ANGLE_provoking_vertex GL_ANGLE_renderability_validation
GL_ANGLE_request_extension GL_ANGLE_robust_client_memory
GL_ANGLE_shader_pixel_local_storage
GL_ANGLE_shader_pixel_local_storage_coherent GL_ANGLE_stencil_texturing
GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5
GL_ANGLE_texture_multisample GL_ANGLE_texture_rectangle
GL_ANGLE_translated_shader_source GL_APPLE_clip_distance GL_ARM_rgba8
GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location
GL_CHROMIUM_copy_texture GL_CHROMIUM_lose_context GL_EXT_blend_func_extended
GL_EXT_blend_minmax GL_EXT_clear_texture GL_EXT_clip_control
GL_EXT_clip_cull_distance GL_EXT_color_buffer_float
GL_EXT_color_buffer_half_float GL_EXT_compressed_ETC1_RGB8_sub_texture
GL_EXT_conservative_depth GL_EXT_debug_label GL_EXT_debug_marker
GL_EXT_depth_clamp GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query
GL_EXT_draw_buffers GL_EXT_draw_buffers_indexed GL_EXT_float_blend
GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range
GL_EXT_memory_object GL_EXT_memory_object_fd GL_EXT_multisample_compatibility
GL_EXT_occlusion_query_boolean GL_EXT_polygon_offset_clamp
GL_EXT_read_format_bgra GL_EXT_render_snorm GL_EXT_robustness GL_EXT_sRGB
GL_EXT_sRGB_write_control GL_EXT_semaphore GL_EXT_semaphore_fd
GL_EXT_shader_texture_lod GL_EXT_shadow_samplers GL_EXT_texture_border_clamp
GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1
GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc_srgb
GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888
GL_EXT_texture_mirror_clamp_to_edge GL_EXT_texture_norm16 GL_EXT_texture_rg
GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_shadow_lod
GL_EXT_texture_storage GL_EXT_texture_type_2_10_10_10_REV
GL_EXT_unpack_subimage GL_KHR_blend_equation_advanced
GL_KHR_blend_equation_advanced_coherent GL_KHR_debug
GL_KHR_parallel_shader_compile GL_KHR_robustness GL_NV_fence
GL_NV_framebuffer_blit GL_NV_pack_subimage GL_NV_pixel_buffer_object
GL_NV_polygon_mode GL_NV_read_depth GL_NV_read_stencil
GL_NV_robustness_video_memory_purge GL_NV_shader_noperspective_interpolation
GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth24 GL_OES_depth32
GL_OES_depth_texture GL_OES_draw_buffers_indexed GL_OES_element_index_uint
GL_OES_fbo_render_mipmap GL_OES_get_program_binary GL_OES_mapbuffer
GL_OES_packed_depth_stencil GL_OES_required_internalformat GL_OES_rgb8_rgba8
GL_OES_sample_variables GL_OES_shader_multisample_interpolation
GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_3D
GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear
GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot
GL_OES_texture_stencil8 GL_OES_texture_storage_multisample_2d_array
GL_OES_vertex_array_object GL_OVR_multiview GL_OVR_multiview2
Disabled Extensions : GL_KHR_blend_equation_advanced
GL_KHR_blend_equation_advanced_coherent GL_MESA_framebuffer_flip_y
Disabled WebGL Extensions :
Window system binding vendor : Google Inc. (NVIDIA Corporation)
Window system binding version : 1.5 (ANGLE 2.1 git hash: unknown hash)
Window system binding extensions: EGL_EXT_create_context_robustness
EGL_KHR_create_context EGL_KHR_get_all_proc_addresses
EGL_ANGLE_create_context_webgl_compatibility
EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXT_pixel_format_float
EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group
EGL_ANGLE_display_semaphore_share_group EGL_ANGLE_create_context_client_arrays
EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization
EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache
EGL_ANDROID_recordable EGL_ANGLE_create_context_backwards_compatible
EGL_KHR_create_context_no_error EGL_NOK_texture_from_pixmap
EGL_NV_robustness_video_memory_purge EGL_KHR_reusable_sync
EGL_ANGLE_context_virtualization EGL_ANGLE_memory_usage_report
XDG_CURRENT_DESKTOP : KDE
XDG_SESSION_TYPE : x11
Ozone platform : x11
Direct rendering version : unknown
Reset notification strategy : 0x8252
GPU process crash count : 0
Driver Bug Workarounds
======================
* disable_discard_framebuffer
* disable_rgb_to_yuv_conversion
* enable_webgl_timer_query_extensions
* exit_on_context_lost
* force_cube_complete
* init_gl_position_in_vertex_shader
* unpack_overlapping_rows_separately_unpack_buffer
* disabled_extension_GL_KHR_blend_equation_advanced
* disabled_extension_GL_KHR_blend_equation_advanced_coherent
* disabled_extension_GL_MESA_framebuffer_flip_y
Problems Detected
=================
* Accelerated video encode has been disabled, either via blocklist,
about:flags or the command line.
Disabled Features: video_encode
* Gpu compositing has been disabled, either via blocklist, about:flags or the
command line. The browser will fall back to software compositing and hardware
acceleration will be unavailable.
Disabled Features: gpu_compositing
* Program link fails in NVIDIA Linux if gl_Position is not set:
(http://crbug.com/286468)
Applied Workarounds: init_gl_position_in_vertex_shader
* NVIDIA fails glReadPixels from incomplete cube map texture:
(http://crbug.com/518889)
Applied Workarounds: force_cube_complete
* Framebuffer discarding can hurt performance on non-tilers:
(http://crbug.com/570897)
Applied Workarounds: disable_discard_framebuffer
* Unpacking overlapping rows from unpack buffers is unstable on NVIDIA GL
driver:
(http://crbug.com/596774)
Applied Workarounds: unpack_overlapping_rows_separately_unpack_buffer
* Disable KHR_blend_equation_advanced until cc shaders are updated:
(http://crbug.com/661715)
Applied Workarounds: disable(GL_KHR_blend_equation_advanced),
disable(GL_KHR_blend_equation_advanced_coherent)
* Expose WebGL's disjoint_timer_query extensions on platforms with site
isolation:
(http://crbug.com/808744), (http://crbug.com/870491)
Applied Workarounds: enable_webgl_timer_query_extensions
* Some drivers can't recover after OUT_OF_MEM and context lost:
(http://crbug.com/893177)
Applied Workarounds: exit_on_context_lost
* Disable GL_MESA_framebuffer_flip_y for desktop GL:
(http://crbug.com/964010)
Applied Workarounds: disable(GL_MESA_framebuffer_flip_y)
* Disable RGB to YUV hardware conversion on NVIDIA Linux:
(http://crbug.com/447709687)
Applied Workarounds: disable_rgb_to_yuv_conversion
ANGLE Features
==============
* allowCompressedFormats (Frontend workarounds): Enabled
* allowExtensionDisableAfterNonPpTokens (Frontend features): Disabled
* alwaysEnableEmulatedMultidrawExtensions (Frontend workarounds): Disabled
* alwaysRunLinkSubJobsThreaded (Frontend features): Disabled
* cacheCompiledShader (Frontend features): Enabled
* clipCullDistanceBrokenWithPassthroughShaders (Frontend features): Disabled
* compileJobIsThreadSafe (Frontend features): Disabled
* compressProgramBinaryBlob (Frontend features): Disabled
* disableAnisotropicFiltering (Frontend workarounds): Disabled
* disableProgramBinary (Frontend features): Disabled
* disableProgramCaching (Frontend features): Disabled
* disableProgramCachingForTransformFeedback (Frontend workarounds): Disabled
* dumpShaderSource (Frontend features): Disabled
* dumpTranslatedShaders (Frontend features): Disabled
* emulatePixelLocalStorage (Frontend features): Enabled
* enableCaptureLimits (Frontend features): Disabled
* enableCreateContextBackwardsCompatible (Frontend features): Enabled
* enableProgramBinaryForCapture (Frontend features): Disabled
* enableShaderSubstitution (Frontend workarounds): Disabled
* enableTranslatedShaderSubstitution (Frontend workarounds): Disabled
* forceDebugContexts (Frontend features): Disabled
* forceDepthAttachmentInitOnClear (Frontend workarounds): Disabled
* forceFlushAfterDrawcallUsingShadowmap (Frontend workarounds): Disabled
* forceGlErrorChecking (Frontend features): Disabled
* forceInitShaderVariables (Frontend features): Disabled
* forceMinimumMaxVertexAttributes (Frontend features): Disabled
* forcePassthroughShaders (Frontend features): Disabled
* forceRobustResourceInit (Frontend features): Disabled
* limitMaxBufferBytesTo1MB (Frontend features): Disabled
* limitMaxTextureBytesTo1MB (Frontend features): Disabled
* linkJobIsThreadSafe (Frontend features): Disabled
* loseContextOnOutOfMemory (Frontend workarounds): Enabled
* loseHardenedContextOnBackendError (Frontend workarounds): Enabled
* noperspectiveInterpolationBrokenWithPassthroughShaders (Frontend features):
Disabled
* setNeedInitOnInvalidation (Frontend features): Enabled
* singleThreadedTextureDecompression (Frontend workarounds): Disabled
* uncurrentEglSurfaceUponSurfaceDestroy (Frontend workarounds): Disabled
* useIr (Frontend features): Disabled
* RGBA4IsNotSupportedForColorRendering (OpenGL workarounds): Disabled
* RGBDXT1TexturesSampleZeroAlpha (OpenGL workarounds): Disabled
* addAndTrueToLoopCondition (OpenGL workarounds): Disabled
* adjustSrcDstRegionForBlitFramebuffer (OpenGL workarounds): Enabled
* allowAstcFormats (OpenGL workarounds): Enabled
* allowClearForRobustResourceInit (OpenGL workarounds): Disabled
* allowETCFormats (OpenGL workarounds): Disabled
* alwaysCallUseProgramAfterLink (OpenGL workarounds): Enabled
* alwaysUnbindFramebufferTexture2D (OpenGL workarounds): Enabled
* avoid1BitAlphaTextureFormats (OpenGL workarounds): Disabled
* avoidBindFragDataLocation (OpenGL workarounds): Disabled
* avoidComplexExpressionsInStructConstructor (OpenGL workarounds): Disabled
* bgraTexImageFormatsBroken (OpenGL workarounds): Disabled
* bindCompleteFramebufferForTimerQueries (OpenGL workarounds): Disabled
* bindTransformFeedbackBufferBeforeBindBufferRange (OpenGL workarounds):
Disabled
* clampArrayAccess (OpenGL workarounds): Disabled
* clampFragDepth (OpenGL workarounds): Enabled
* clampMscRate (OpenGL workarounds): Disabled
* clampPointSize (OpenGL workarounds): Enabled
* clearsWithGapsNeedFlush (OpenGL workarounds): Disabled
* clipSrcRegionForBlitFramebuffer (OpenGL workarounds): Disabled
* corruptProgramBinaryForTesting (OpenGL workarounds): Disabled
* decodeEncodeSRGBForGenerateMipmap (OpenGL workarounds): Disabled
* disableBaseInstanceVertex (OpenGL workarounds): Enabled
* disableBlendEquationAdvanced (OpenGL workarounds): Disabled
* disableClearTexImageForRobustInit (OpenGL workarounds): Disabled
* disableClearTexture (OpenGL workarounds): Disabled
* disableClipControl (OpenGL features): Disabled
* disableDrawBuffersIndexed (OpenGL workarounds): Disabled
* disableGPUSwitchingSupport (OpenGL workarounds): Disabled
* disableMSAASampleCount1 (OpenGL workarounds): Disabled
* disableMultisampledRenderToTexture (OpenGL workarounds): Disabled
* disableNativeParallelCompile (OpenGL workarounds): Disabled
* disablePassthroughShaders (OpenGL workarounds): Disabled
* disableRenderSnorm (OpenGL workarounds): Disabled
* disableSemaphoreFd (OpenGL workarounds): Disabled
* disableSyncControlSupport (OpenGL workarounds): Disabled
* disableTextureClampToBorder (OpenGL workarounds): Disabled
* disableTextureMirrorClampToEdge (OpenGL workarounds): Disabled
* disableTiledRendering (OpenGL workarounds): Disabled
* disableTimestampQueries (OpenGL workarounds): Disabled
* doesSRGBClearsOnLinearFramebufferAttachments (OpenGL workarounds): Disabled
* dontInitializeUninitializedLocals (OpenGL workarounds): Disabled
* dontInvalidateIncompleteFBOs (OpenGL workarounds): Disabled
* dontUseLoopsToInitializeVariables (OpenGL workarounds): Disabled
* emitMaxGlsl400ForTesting (OpenGL workarounds): Disabled
* emulateAbsIntFunction (OpenGL workarounds): Disabled
* emulateAtan2Float (OpenGL workarounds): Enabled
* emulateClipDistanceState (OpenGL workarounds): Disabled
* emulateClipOrigin (OpenGL workarounds): Disabled
* emulateCopyTexImage2D (OpenGL workarounds): Disabled
* emulateCopyTexImage2DFromRenderbuffers (OpenGL workarounds): Disabled
* emulateImmutableCompressedTexture3D (OpenGL workarounds): Disabled
* emulateMaxVertexAttribStride (OpenGL workarounds): Disabled
* emulatePackSkipRowsAndPackSkipPixels (OpenGL workarounds): Disabled
* emulatePrimitiveRestartFixedIndex (OpenGL workarounds): Disabled
* emulateRGB10 (OpenGL workarounds): Enabled
* ensureNonEmptyBufferIsBoundForDraw (OpenGL features): Disabled
* expandFragmentOutputsToVec4 (OpenGL workarounds): Disabled
* explicitFragmentLocations (OpenGL workarounds): Disabled
* finishBeforeBlitFramebufferMultiAttachment (OpenGL workarounds): Disabled
* finishDoesNotCauseQueriesToBeAvailable (OpenGL workarounds): Enabled
* flushBeforeDeleteTextureIfCopiedTo (OpenGL workarounds): Disabled
* flushBeforeGenerateMipmap (OpenGL workarounds): Disabled
* flushOnFramebufferChange (OpenGL workarounds): Disabled
* flushQueriesBeforeDeletingOrUnbindingFbo (OpenGL workarounds): Disabled
* forceLumaWorkaroundForSameTextureCopyTexImage2D (OpenGL workarounds):
Disabled
* forceMaxCombinedShaderOutputResources (OpenGL features): Enabled
* initFragmentOutputVariables (OpenGL workarounds): Disabled
* initializeCurrentVertexAttributes (OpenGL workarounds): Enabled
* keepBufferShadowCopy (OpenGL workarounds): Disabled
* limitMax3dArrayTextureSizeTo1024 (OpenGL workarounds): Disabled
* limitMaxBufferSizeTo1gb (OpenGL workarounds): Disabled
* limitMaxMSAASamplesTo4 (OpenGL workarounds): Disabled
* limitOutputVaryingsTo256AtCompileTime (OpenGL workarounds): Disabled
* limitWebglMaxTextureSizeTo4096 (OpenGL workarounds): Disabled
* limitWebglMaxTextureSizeTo8192 (OpenGL workarounds): Disabled
* multiviewViaViewportArray (OpenGL features): Enabled
* packLargeRowLengthSeparatelyPackBuffer (OpenGL workarounds): Disabled
* packLastRowSeparatelyForPaddingInclusion (OpenGL workarounds): Enabled
* packOverlappingRowsSeparatelyPackBuffer (OpenGL workarounds): Enabled
* passHighpToPackUnormSnormBuiltins (OpenGL workarounds): Disabled
* preAddTexelFetchOffsets (OpenGL workarounds): Disabled
* preTransformTextureCubeGradDerivatives (OpenGL workarounds): Disabled
* promotePackedFormatsTo8BitPerChannel (OpenGL workarounds): Disabled
* queryCounterBitsGeneratesErrors (OpenGL workarounds): Disabled
* readPixelsUsingImplementationColorReadFormatForNorm16 (OpenGL workarounds):
Disabled
* reapplyUBOBindingsAfterUsingBinaryProgram (OpenGL workarounds): Disabled
* reattachFboDepthStencilOnReallocation (OpenGL workarounds): Disabled
* reattachTextureToFboAfterLayerIncrease (OpenGL workarounds): Disabled
* recreateImmutableTextureOnBaseLevelIncrease (OpenGL workarounds): Disabled
* recreateMipmapLevelsBeforeGenerate (OpenGL workarounds): Disabled
* removeDynamicIndexingOfSwizzledVector (OpenGL workarounds): Disabled
* removeInvariantAndCentroidForESSL3 (OpenGL workarounds): Disabled
* resetBaseLevelForASTCSubImage (OpenGL workarounds): Disabled
* resetSampleCoverageOnFBOChange (OpenGL workarounds): Disabled
* resetTexImage2DBaseLevel (OpenGL workarounds): Disabled
* resyncDepthRangeOnClipControl (OpenGL workarounds): Disabled
* rewriteRepeatedAssignToSwizzled (OpenGL workarounds): Enabled
* rewriteRowMajorMatrices (OpenGL workarounds): Disabled
* sanitizeAMDGPURendererString (OpenGL workarounds): Disabled
* scalarizeVecAndMatConstructorArgs (OpenGL workarounds): Enabled
* setPrimitiveRestartFixedIndexForDrawArrays (OpenGL workarounds): Disabled
* setZeroLevelBeforeGenerateMipmap (OpenGL workarounds): Disabled
* shiftInstancedArrayDataWithOffset (OpenGL workarounds): Disabled
* splitLevel0PboFullSubImage2D (OpenGL workarounds): Disabled
* srgbBlendingBroken (OpenGL workarounds): Disabled
* supportsFragmentShaderInterlockARB (OpenGL features): Enabled
* supportsFragmentShaderInterlockNV (OpenGL features): Enabled
* supportsFragmentShaderOrderingINTEL (OpenGL features): Disabled
* supportsShaderFramebufferFetchEXT (OpenGL features): Disabled
* supportsShaderFramebufferFetchNonCoherentEXT (OpenGL features): Disabled
* syncAllVertexArraysToDefault (OpenGL workarounds): Disabled
* syncDefaultVertexArraysToDefault (OpenGL workarounds): Disabled
* unbindFBOBeforeSwitchingContext (OpenGL workarounds): Disabled
* unfoldShortCircuits (OpenGL workarounds): Disabled
* unpackLastRowSeparatelyForPaddingInclusion (OpenGL workarounds): Enabled
* unpackOverlappingRowsSeparatelyUnpackBuffer (OpenGL workarounds): Enabled
* unsizedSRGBReadPixelsDoesntTransform (OpenGL workarounds): Disabled
* uploadOversizedMipLevelsViaUnpackBuffer (OpenGL workarounds): Disabled
* uploadTextureDataInChunks (OpenGL workarounds): Disabled
* useIntermediateTextureForGenerateMipmap (OpenGL workarounds): Disabled
* useTempForNonZeroBaseLevelGenMipmapUsingCopyImageSubData (OpenGL
workarounds): Disabled
* useUnusedBlocksWithStandardOrSharedLayout (OpenGL workarounds): Disabled
* validateMaxPerStageUniformBlocksAtCompileTime (OpenGL workarounds): Disabled
* validateState (OpenGL features): Disabled
* vertexIDDoesNotIncludeBaseVertex (OpenGL workarounds): Disabled
Dawn Info
=========
<Unknown GPU> OpenGLES backend - ANGLE (NVIDIA Corporation, NVIDIA TITAN
Xp/PCIe/SSE2, OpenGL 4.5.0 NVIDIA 550.163.01) (Compatibility Mode)
--------------------------------------------------------------------------------------------------------------------------------------------
[WebGPU Status]
---------------
* Available
[Adapter Supported Features]
----------------------------
* texture-compression-bc
* float32blendable
* dual-source-blending
* texture-component-swizzle
* dawn-internal-usages
* dawn-native
* implicit-device-synchronization
* transient-attachments
* angle-texture-sharing
* unorm16texture-formats
* dawn-format-capabilities
* unorm16formats-for-external-texture
* dawn-allow-undefined-load-store-op
[Enabled Toggle Names]
----------------------
* lazy_clear_resource_on_first_use:
(https://crbug.com/dawn/145):
Clears resource to zero on first usage. This initializes the resource so
that no dirty bits from recycled memory is present in the new resource.
* disable_indexed_draw_buffers:
(https://crbug.com/dawn/582):
Disables the use of indexed draw buffer state which is unsupported on some
platforms.
* flush_before_client_wait_sync:
(https://crbug.com/dawn/633):
Call glFlush before glClientWaitSync to work around bugs in the latter
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* use_placeholder_fragment_in_vertex_only_pipeline:
(https://crbug.com/dawn/136):
Use a placeholder empty fragment shader in vertex only render pipeline.
This toggle must be enabled for OpenGL ES backend, the Vulkan Backend, and
serves as a workaround by default enabled on some Metal devices with Intel
GPU to ensure the depth result is correct.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
* use_blit_for_buffer_to_stencil_texture_copy:
(https://crbug.com/dawn/1389):
Use a blit instead of a copy command to copy buffer data to the stencil
aspect of a texture. Works around an issue where stencil writes by copy
commands are not visible to a render or compute pass.
* use_blit_for_depth16unorm_texture_to_buffer_copy:
(https://crbug.com/dawn/1782):
Use a blit instead of a copy command to copy depth aspect of a texture to
a buffer.Workaround for OpenGL and OpenGLES.
* use_blit_for_depth32float_texture_to_buffer_copy:
(https://crbug.com/dawn/1782):
Use a blit instead of a copy command to copy depth aspect of a texture to
a buffer.Workaround for OpenGLES.
* use_blit_for_stencil_texture_to_buffer_copy:
(https://crbug.com/dawn/1782):
Use a blit instead of a copy command to copy stencil aspect of a texture
to a buffer.Workaround for OpenGLES.
* use_blit_for_snorm_texture_to_buffer_copy:
(https://crbug.com/dawn/1781):
Use a blit instead of a copy command to copy snorm texture to a
buffer.Workaround for OpenGLES.
* use_blit_for_rgb9e5ufloat_texture_copy:
(https://crbug.com/dawn/2079):
Use a blit instead of a copy command to copy rgb9e5ufloat texture to a
texture or a buffer.Workaround for OpenGLES.
* gl_use_array_length_from_uniform:
(https://crbug.com/dawn/379805731):
Use arrayLengthFromUniform transform to replace arrayLength() function
calls of dynamic storage buffers.This toggle is only used for workarounds
on certain devices. It has no impact on backends which need this transform
universally (metal, d3d12)
* use_t2b2t_for_srgb_texture_copy:
(https://crbug.com/dawn/2362):
Use T2B and B2T copies to emulate a T2T copy between sRGB and non-sRGB
textures.Workaround for OpenGLES.
* gl_depth_bias_modifier:
(https://crbug.com/42241017):
Empirically some GL drivers select n+1 when a depth value lies between 2^n
and 2^(n+1), while the WebGPU CTS is expecting n. Scale the depth bias
value by multiple 0.5 on certain backends to achieve conformant result.
* enable_integer_range_analysis_in_robustness:
(https://crbug.com/348701956):
Compute the range of the index with Integer Range Analysis in the
robustness transform and skip doing index clamping when the out of bound
access cannot happen.
* blob_cache_hash_validation:
(https://crbug.com/429938352):
Enable hash validation when loading/storing from/to the blob cache
* decompose_uniform_buffers:
(https://crbug.com/448452698):
Decompose uniform buffers into arrays of vec4<u32> on backends for Vulkan
and OpenGL.
[WebGPU Required Toggles - enabled]
-----------------------------------
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
<CPU> Vulkan backend - SwiftShader Device (Subzero)
----------------------------------------------------
[WebGPU Status]
---------------
* Blocklisted - crbug.com/40057808: CPU adapters not fully tested or
conformant. |
[Adapter Supported Features]
----------------------------
* core-features-and-limits
* depth-clip-control
* depth32float-stencil8
* texture-compression-bc
* texture-compression-bc-sliced-3d
* texture-compression-etc2
* texture-compression-astc
* texture-compression-astc-sliced-3d
* timestamp-query
* indirect-first-instance
* rg11b10ufloat-renderable
* bgra8unorm-storage
* float32filterable
* float32blendable
* clip-distances
* subgroups
* texture-component-swizzle
* subgroup-size-control
* dawn-internal-usages
* dawn-multi-planar-formats
* dawn-native
* implicit-device-synchronization
* transient-attachments
* unorm16texture-formats
* adapter-properties-memory-heaps
* adapter-properties-vk
* dawn-format-capabilities
* shared-texture-memory-opaque-fd
* shared-fence-vk-semaphore-opaque-fd
* dawn-load-resolve-texture
* flexible-texture-views
* unorm16formats-for-external-texture
* dawn-allow-undefined-load-store-op
[Enabled Toggle Names]
----------------------
* lazy_clear_resource_on_first_use:
(https://crbug.com/dawn/145):
Clears resource to zero on first usage. This initializes the resource so
that no dirty bits from recycled memory is present in the new resource.
* use_temporary_buffer_in_texture_to_texture_copy:
(https://crbug.com/dawn/42):
Split texture-to-texture copy into two copies: copy from source texture
into a temporary buffer, and copy from the temporary buffer into the
destination texture when copying between compressed textures that don't
have block-aligned sizes. This workaround is enabled by default on all
Vulkan drivers to solve an issue in the Vulkan SPEC about the
texture-to-texture copies with compressed formats. See #1005
(https://github.com/KhronosGroup/Vulkan-Docs/issues/1005) for more
details.
* vulkan_use_d32s8:
(https://crbug.com/dawn/286):
Vulkan mandates support of either D32_FLOAT_S8 or D24_UNORM_S8. When
available the backend will use D32S8 (toggle to on) but setting the toggle
to off will make it use the D24S8 format when possible.
* vulkan_use_s8:
(https://crbug.com/dawn/666):
Vulkan has a pure stencil8 format but it is not universally available.
When this toggle is on, the backend will use S8 for the stencil8 format,
otherwise it will fallback to D32S8 or D24S8.
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* vulkan_use_demote_to_helper_invocation_extension:
(https://crbug.com/42250787):
Sets the use of the vulkan demote to helper extension
* use_placeholder_fragment_in_vertex_only_pipeline:
(https://crbug.com/dawn/136):
Use a placeholder empty fragment shader in vertex only render pipeline.
This toggle must be enabled for OpenGL ES backend, the Vulkan Backend, and
serves as a workaround by default enabled on some Metal devices with Intel
GPU to ensure the depth result is correct.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
* use_vulkan_zero_initialize_workgroup_memory_extension:
(https://crbug.com/dawn/1302):
Initialize workgroup memory with OpConstantNull on Vulkan when the Vulkan
extension VK_KHR_zero_initialize_workgroup_memory is supported.
* use_vulkan_memory_model:
(https://crbug.com/392606604):
Use the Vulkan Memory Model if available.
* vulkan_direct_variable_access_transform_handle:
(https://crbug.com/387000529):
Transform handles using direct variable access.
* enable_integer_range_analysis_in_robustness:
(https://crbug.com/348701956):
Compute the range of the index with Integer Range Analysis in the
robustness transform and skip doing index clamping when the out of bound
access cannot happen.
* use_spirv_1_4:
(https://crbug.com/422421915):
Use SPIR-V 1.4 if available
* blob_cache_hash_validation:
(https://crbug.com/429938352):
Enable hash validation when loading/storing from/to the blob cache
* decompose_uniform_buffers:
(https://crbug.com/448452698):
Decompose uniform buffers into arrays of vec4<u32> on backends for Vulkan
and OpenGL.
* vulkan_use_dynamic_rendering:
(https://crbug.com/dawn/463893794):
Makes use of VK_KHR_dynamic_rendering to implement WebGPU RenderPass.
* enable_spirv_validation:
(https://crbug.com/473526415):
Enable validation of SPIR-V generated by Tint.
* vulkan_use_create_render_pass_2:
(https://crbug.com/chromium/463893793):
Makes use of VK_KHR_create_renderpass2 when creating VkRenderPass objects.
Ignored when vulkan_use_dynamic_rendering is enabled.
* wait_is_thread_safe:
(https://crbug.com/412761228):
WaitFor* functions are thread-safe and can be called without the
device-lock if implicit synchronization is enabled.
[WebGPU Required Toggles - enabled]
-----------------------------------
* disallow_spirv:
(https://crbug.com/1214923):
Disallow usage of SPIR-V completely so that only WGSL is used for shader
modules. This is useful to prevent a Chromium renderer process from
successfully sending SPIR-V code to be compiled in the GPU process.
* timestamp_quantization:
(https://crbug.com/dawn/1800):
Enable timestamp queries quantization to reduce the precision of timers
that can be created with timestamp queries.
Compositor Information
======================
Tile Update Mode: One-copy
Partial Raster : Enabled
Display(s) Information
======================
Info : Display[3] bounds=[0,0 2560x1440],
workarea=[70,0 2490x1396], scale=1, rotation=0, panel_rotation=0 external
detected
Color space (all) : {primaries:BT709, transfer:SRGB, matrix:RGB,
range:FULL}
Buffer format (all) : BGRA_8888
Color volume : {name:'srgb', r:[0.6400, 0.3300], g:[0.3000,
0.6000], b:[0.1500, 0.0600], w:[0.3127, 0.3290]}
SDR white level in nits : 203
HDR relative maximum luminance: 1
Bits per color component : 8
Bits per pixel : 24
Refresh Rate in Hz : 59.9505500793457
Info : Display[5] bounds=[2560,0 2560x1440],
workarea=[2560,0 2560x1440], scale=1, rotation=0, panel_rotation=0 external
detected
Color space (all) : {primaries:BT709, transfer:SRGB, matrix:RGB,
range:FULL}
Buffer format (all) : BGRA_8888
Color volume : {name:'srgb', r:[0.6400, 0.3300], g:[0.3000,
0.6000], b:[0.1500, 0.0600], w:[0.3127, 0.3290]}
SDR white level in nits : 203
HDR relative maximum luminance: 1
Bits per color component : 8
Bits per pixel : 24
Refresh Rate in Hz : 59.9505500793457
Video Acceleration Information
==============================
Decoding:
Encoding:
Vulkan Information
==================
Device Performance Information
==============================
Log Messages
============
[65157:65157:0924/160802.582530:WARNING:media/gpu/vaapi/vaapi_wrapper.cc:130] :
Should skip nVidia device named: nvidia-drm
[65157:65157:0924/160802.583008:VERBOSE1:media/gpu/vaapi/vaapi_wrapper.cc:1755]
: GetHandle(): Either VADisplayStateSingleton::PreSandboxInitialization()
hasn't been called or that method failed to find a suitable render node
[65157:65157:0924/160802.596821:VERBOSE1:sandbox/policy/linux/sandbox_linux.cc:78]
: Activated seccomp-bpf sandbox for process type: gpu-process.
[65157:65157:0924/160802.598173:VERBOSE1:components/viz/service/main/viz_main_impl.cc:87]
: VizNullHypothesis is disabled (not a warning)
[65157:65189:0924/160802.598462:VERBOSE1:base/allocator/scheduler_loop_quarantine_config.cc:198]
: No entry found for gpu-process/viz-compositor.
