visual glitches when opening Chrome on MacOS
Reported by
micah.st...@gmail.com,
Mar 26 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/604.5.6 (KHTML, like Gecko) Version/11.0.3 Safari/604.5.6 Example URL: chrome://settings/ Steps to reproduce the problem: 1. Open Chrome 2. visit chrome://settings/ 3. observe artifacts What is the expected behavior? the page renders the page content without artifacts What went wrong? The page content is distorted and horizontally stretched. looks like some graphics bug. Observed this on a MacBook Air running MacOS 10.11.6 with Intel HD Graphics 5000 1536 MB Does it occur on multiple sites: Yes Is it a problem with a plugin? No Did this work before? Yes 64.0.3282 Does this work in other browsers? Yes Chrome version: 65.0.3325.181 Channel: stable OS Version: OS X 10.11.6 Flash Version:
,
Mar 26 2018
,
Mar 27 2018
Unable to reproduce this issue on 65.0.3325.181 using Mac 10.13.3 and Mac 10.12.6 with steps mentioned in comment#0. Attaching chrome://gpu info. NOTE: ET/Inhouse team do not have Mac 10.11.6 to test this issue there. @Reporter: Does launching chrome with --disable-gpu-rasterization flag resolves your issue? This issue looks similar to issue 794819 . Hence cc'ing kbr@ from that bug for further inputs on this issue. Thanks!
,
Mar 27 2018
This is definitely the same problem as Issue 794819 . Let me try to reproduce here. Submitter, FYI, upgrading your OS will solve this problem.
,
Mar 27 2018
Submitter: please always provide the contents of Chrome's about:gpu page when filing graphics-related bugs, as the template requests. Even though Chrome's rendering may be broken, pressing Command-A , Command-C and then Command-V in another browser to update this bug report will work.
Here is the same from our testing machine. Can not reproduce. Make sure you aren't passing any arguments like --ignore-gpu-blacklist to Chrome.
Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
CheckerImaging: Disabled
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Hardware accelerated
Rasterization: Unavailable
Video Decode: Hardware accelerated
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
add_and_true_to_loop_condition
adjust_src_dst_region_for_blitframebuffer
avoid_stencil_buffers
decode_encode_srgb_for_generatemipmap
disable_framebuffer_cmaa
disable_webgl_rgb_multisampling_usage
dont_use_loops_to_initialize_variables
emulate_abs_int_function
get_frag_data_info_bug
init_one_cube_map_level_before_copyteximage
max_msaa_sample_count_4
msaa_is_slow
pack_parameters_workaround_with_pack_buffer
rebind_transform_feedback_before_resume
regenerate_struct_names
remove_invariant_and_centroid_for_essl3
reset_base_mipmap_level_before_texstorage
rewrite_float_unary_minus_operator
rewrite_texelfetchoffset_to_texelfetch
scalarize_vec_and_mat_constructor_args
set_zero_level_before_generating_mipmap
swizzle_rgba_for_async_readpixels
unfold_short_circuit_as_ternary_operation
unpack_alignment_workaround_with_unpack_buffer
unpack_image_height_workaround_with_unpack_buffer
use_intermediary_for_copy_texture_image
use_shadowed_tex_level_params
use_unused_standard_shared_blocks
Problems Detected
Rendering artifacts on older macOS releases and Intel GPUs: 794819
Disabled Features: accelerated_2d_canvas, gpu_rasterization
Async Readpixels with GL_BGRA format is broken on Haswell chipset on Macs: 265115
Applied Workarounds: swizzle_rgba_for_async_readpixels
Unfold short circuit on Mac OS X: 307751
Applied Workarounds: unfold_short_circuit_as_ternary_operation
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Mac drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
Applied Workarounds: msaa_is_slow
glGenerateMipmap fails if the zero texture level is not set on some Mac drivers: 560499
Applied Workarounds: set_zero_level_before_generating_mipmap
Pack parameters work incorrectly with pack buffer bound: 563714
Applied Workarounds: pack_parameters_workaround_with_pack_buffer
Alignment works incorrectly with unpack buffer bound: 563714
Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer
copyTexImage2D fails when reading from IOSurface on multiple GPU types.: 581777
Applied Workarounds: use_intermediary_for_copy_texture_image
Multisample renderbuffers with format GL_RGB8 have performance issues on Intel GPUs.: 607130
Applied Workarounds: disable_webgl_rgb_multisampling_usage
Mac Drivers store texture level parameters on int16_t that overflow: 610153
Applied Workarounds: use_shadowed_tex_level_params
Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198
Applied Workarounds: disable_framebuffer_cmaa
glGetFragData{Location|Index} works incorrectly on Max: 638340
Applied Workarounds: get_frag_data_info_bug
glResumeTransformFeedback works incorrectly on Intel GPUs: 638514
Applied Workarounds: rebind_transform_feedback_before_resume
glTexStorage* are buggy when base mipmap level is not 0: 640506
Applied Workarounds: reset_base_mipmap_level_before_texstorage
Result of abs(i) where i is an integer in vertex shader is wrong: 642227
Applied Workarounds: emulate_abs_int_function
Rewrite texelFetchOffset to texelFetch for Intel Mac: 642605
Applied Workarounds: rewrite_texelfetchoffset_to_texelfetch
Rewrite condition in for and while loops for Intel Mac: 644669
Applied Workarounds: add_and_true_to_loop_condition
Do TexImage2D first before CopyTexImage2D for cube map texture on Intel Mac 10.11: 648197
Applied Workarounds: init_one_cube_map_level_before_copyteximage
Decode and encode before generateMipmap for srgb format textures on macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Insert statements to reference all members in unused std140/shared blocks on Mac: 618464
Applied Workarounds: use_unused_standard_shared_blocks
Tex(Sub)Image3D performs incorrectly when uploading from unpack buffer with GL_UNPACK_IMAGE_HEIGHT greater than zero on Intel Macs: 654258
Applied Workarounds: unpack_image_height_workaround_with_unpack_buffer
adjust src/dst region if blitting pixels outside read framebuffer on Mac: 644740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
Mac driver GL 4.1 requires invariant and centroid to match between shaders: 639760, 641129
Applied Workarounds: remove_invariant_and_centroid_for_essl3
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Rewrite -float to 0.0 - float for Intel Mac: 672380
Applied Workarounds: rewrite_float_unary_minus_operator
Certain Apple devices leak stencil buffers: 713854
Applied Workarounds: avoid_stencil_buffers
Don't expose disjoint_timer_query extensions to WebGL: 808744
Shader variable initialization in a loop caused perf regression on Mac Intel.: 809422
Applied Workarounds: dont_use_loops_to_initialize_variables
8x MSAA is slow for alpha:false WebGL contexts on Mac Intel: 812071
Applied Workarounds: max_msaa_sample_count_4
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported 2018-03-27T22:01:51.696Z
Chrome version Chrome/65.0.3325.181
Operating system Mac OS X 10.11.6
Software rendering list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/software_rendering_list.json
Driver bug list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/gpu_driver_bug_list.json
ANGLE commit id 2c9cc8b6e810
2D graphics backend Skia/65 8a3e0b31927ae78bc3e9c342b1290a6a64233674-
Command Line /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --flag-switches-begin --flag-switches-end
Driver Information
Initialization time 28
In-process GPU false
Passthrough Command Decoder false
Direct Composition false
Supports overlays false
Sandboxed true
GPU0 VENDOR = 0x8086, DEVICE= 0x0a26 *ACTIVE*
Optimus false
Optimus false
AMD switchable false
Driver vendor
Driver version 10.14.73
Driver date
Pixel shader version 4.10
Vertex shader version 4.10
Max. MSAA samples 8
Machine model name MacBookAir
Machine model version 6.2
GL_VENDOR Intel Inc.
GL_RENDERER Intel HD Graphics 5000 OpenGL Engine
GL_VERSION 4.1 INTEL-10.14.73
GL_EXTENSIONS GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor
Window system binding version
Window system binding extensions
Direct rendering Yes
Reset notification strategy 0x0000
GPU process crash count 0
Compositor Information
Tile Update Mode Zero-copy
Partial Raster Enabled
GpuMemoryBuffers Status
ATC Software only
ATCIA Software only
DXT1 Software only
DXT5 Software only
ETC1 Software only
R_8 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
R_16 Software only
RG_88 Software only
BGR_565 Software only
RGBA_4444 Software only
RGBX_8888 Software only
RGBA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_1010102 Software only
BGRA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
RGBA_F16 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
YVU_420 Software only
YUV_420_BIPLANAR GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
UYVY_422 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
Display(s) Information
Info Display[69679040] bounds=0,0 1440x900, workarea=0,23 1440x803, scale=1, external
Color space information {primaries:[[0.3806,0.4340,0.1496,],[0.2195,0.6820,0.0985,],[0.0401,0.0883,0.6966,],], transfer:0.0774*x + 0.0000 if x < 0.0404 else (0.9479*x + 0.0521)**2.4000 + 0.0000, matrix:RGB, range:FULL}
Bits per color component 8
Bits per pixel 24
Video Acceleration Information
Decode h264 baseline up to 4096x2160 pixels
Decode h264 extended up to 4096x2160 pixels
Decode h264 main up to 4096x2160 pixels
Decode h264 high up to 4096x2160 pixels
Encode h264 baseline up to 4096x2160 pixels and/or 30.000 fps
Encode h264 main up to 4096x2160 pixels and/or 30.000 fps
Encode h264 high up to 4096x2160 pixels and/or 30.000 fps
,
Mar 29 2018
hi @sindu, sorry for the delayed reply. yes, if I launch Chrome like this `open -a Google\ Chrome --args --disable-gpu-rasterization` then the issue does not appear. the page renders like it normally would, without artifacts.
,
Mar 29 2018
Thank you for providing more feedback. Adding the requester to the cc list. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
,
Mar 29 2018
Submitter: as requested before, please provide the contents of about:gpu from your system.
,
Mar 30 2018
Graphics Feature Status
Canvas: Software only. Hardware acceleration disabled
CheckerImaging: Disabled
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Hardware accelerated
Rasterization: Software only. Hardware acceleration disabled
Video Decode: Hardware accelerated
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
add_and_true_to_loop_condition
adjust_src_dst_region_for_blitframebuffer
avoid_stencil_buffers
decode_encode_srgb_for_generatemipmap
disable_framebuffer_cmaa
disable_webgl_rgb_multisampling_usage
dont_use_loops_to_initialize_variables
emulate_abs_int_function
get_frag_data_info_bug
init_one_cube_map_level_before_copyteximage
max_msaa_sample_count_4
msaa_is_slow
pack_parameters_workaround_with_pack_buffer
rebind_transform_feedback_before_resume
regenerate_struct_names
remove_invariant_and_centroid_for_essl3
reset_base_mipmap_level_before_texstorage
rewrite_float_unary_minus_operator
rewrite_texelfetchoffset_to_texelfetch
scalarize_vec_and_mat_constructor_args
set_zero_level_before_generating_mipmap
unfold_short_circuit_as_ternary_operation
unpack_alignment_workaround_with_unpack_buffer
unpack_image_height_workaround_with_unpack_buffer
use_intermediary_for_copy_texture_image
use_shadowed_tex_level_params
use_unused_standard_shared_blocks
Problems Detected
Unfold short circuit on Mac OS X: 307751
Applied Workarounds: unfold_short_circuit_as_ternary_operation
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Mac drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
Applied Workarounds: msaa_is_slow
glGenerateMipmap fails if the zero texture level is not set on some Mac drivers: 560499
Applied Workarounds: set_zero_level_before_generating_mipmap
Pack parameters work incorrectly with pack buffer bound: 563714
Applied Workarounds: pack_parameters_workaround_with_pack_buffer
Alignment works incorrectly with unpack buffer bound: 563714
Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer
copyTexImage2D fails when reading from IOSurface on multiple GPU types.: 581777
Applied Workarounds: use_intermediary_for_copy_texture_image
Multisample renderbuffers with format GL_RGB8 have performance issues on Intel GPUs.: 607130
Applied Workarounds: disable_webgl_rgb_multisampling_usage
Mac Drivers store texture level parameters on int16_t that overflow: 610153
Applied Workarounds: use_shadowed_tex_level_params
Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198
Applied Workarounds: disable_framebuffer_cmaa
glGetFragData{Location|Index} works incorrectly on Max: 638340
Applied Workarounds: get_frag_data_info_bug
glResumeTransformFeedback works incorrectly on Intel GPUs: 638514
Applied Workarounds: rebind_transform_feedback_before_resume
glTexStorage* are buggy when base mipmap level is not 0: 640506
Applied Workarounds: reset_base_mipmap_level_before_texstorage
Result of abs(i) where i is an integer in vertex shader is wrong: 642227
Applied Workarounds: emulate_abs_int_function
Rewrite texelFetchOffset to texelFetch for Intel Mac: 642605
Applied Workarounds: rewrite_texelfetchoffset_to_texelfetch
Rewrite condition in for and while loops for Intel Mac: 644669
Applied Workarounds: add_and_true_to_loop_condition
Do TexImage2D first before CopyTexImage2D for cube map texture on Intel Mac 10.11: 648197
Applied Workarounds: init_one_cube_map_level_before_copyteximage
Decode and encode before generateMipmap for srgb format textures on macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Insert statements to reference all members in unused std140/shared blocks on Mac: 618464
Applied Workarounds: use_unused_standard_shared_blocks
Tex(Sub)Image3D performs incorrectly when uploading from unpack buffer with GL_UNPACK_IMAGE_HEIGHT greater than zero on Intel Macs: 654258
Applied Workarounds: unpack_image_height_workaround_with_unpack_buffer
adjust src/dst region if blitting pixels outside read framebuffer on Mac: 644740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
Mac driver GL 4.1 requires invariant and centroid to match between shaders: 639760, 641129
Applied Workarounds: remove_invariant_and_centroid_for_essl3
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Rewrite -float to 0.0 - float for Intel Mac: 672380
Applied Workarounds: rewrite_float_unary_minus_operator
Certain Apple devices leak stencil buffers: 713854
Applied Workarounds: avoid_stencil_buffers
Don't expose disjoint_timer_query extensions to WebGL: 808744
Shader variable initialization in a loop caused perf regression on Mac Intel.: 809422
Applied Workarounds: dont_use_loops_to_initialize_variables
8x MSAA is slow for alpha:false WebGL contexts on Mac Intel: 812071
Applied Workarounds: max_msaa_sample_count_4
Accelerated 2D canvas is unavailable: either disabled via blacklist or the command line.
Disabled Features: 2d_canvas
Accelerated rasterization has been disabled, either via blacklist, about:flags or the command line.
Disabled Features: rasterization
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported 2018-03-30T15:07:23.278Z
Chrome version Chrome/65.0.3325.181
Operating system Mac OS X 10.11.6
Software rendering list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/software_rendering_list.json
Driver bug list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/gpu_driver_bug_list.json
ANGLE commit id 2c9cc8b6e810
2D graphics backend Skia/65 8a3e0b31927ae78bc3e9c342b1290a6a64233674-
Command Line /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --disable-gpu-rasterization --disable-accelerated-2d-canvas --flag-switches-begin --ignore-gpu-blacklist --flag-switches-end
Driver Information
Initialization time 37
In-process GPU false
Passthrough Command Decoder false
Direct Composition false
Supports overlays false
Sandboxed true
GPU0 VENDOR = 0x8086, DEVICE= 0x0a2e *ACTIVE*
Optimus false
Optimus false
AMD switchable false
Driver vendor
Driver version 10.14.73
Driver date
Pixel shader version 4.10
Vertex shader version 4.10
Max. MSAA samples 8
Machine model name MacBookPro
Machine model version 11.1
GL_VENDOR Intel Inc.
GL_RENDERER Intel Iris OpenGL Engine
GL_VERSION 4.1 INTEL-10.14.73
GL_EXTENSIONS GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor
Window system binding version
Window system binding extensions
Direct rendering Yes
Reset notification strategy 0x0000
GPU process crash count 0
Compositor Information
Tile Update Mode Zero-copy
Partial Raster Enabled
GpuMemoryBuffers Status
ATC Software only
ATCIA Software only
DXT1 Software only
DXT5 Software only
ETC1 Software only
R_8 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
R_16 Software only
RG_88 Software only
BGR_565 Software only
RGBA_4444 Software only
RGBX_8888 Software only
RGBA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_1010102 Software only
BGRA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
RGBA_F16 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
YVU_420 Software only
YUV_420_BIPLANAR GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
UYVY_422 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
Display(s) Information
Info Display[69732352] bounds=0,0 1280x800, workarea=0,23 1280x773, scale=2, external
Color space information {primaries:[[0.4443,0.3794,0.1404,],[0.2248,0.7262,0.0491,],[0.0055,0.0780,0.7415,],], transfer:0.0774*x + 0.0000 if x < 0.0404 else (0.9479*x + 0.0521)**2.4000 + 0.0000, matrix:RGB, range:FULL}
Bits per color component 8
Bits per pixel 24
Video Acceleration Information
Decode h264 baseline up to 4096x2160 pixels
Decode h264 extended up to 4096x2160 pixels
Decode h264 main up to 4096x2160 pixels
Decode h264 high up to 4096x2160 pixels
Encode h264 baseline up to 4096x2160 pixels and/or 30.000 fps
Encode h264 main up to 4096x2160 pixels and/or 30.000 fps
Encode h264 high up to 4096x2160 pixels and/or 30.000 fps
,
Mar 30 2018
--ignore-gpu-blacklist is being passed. This prevents Chrome's blacklist from working. Please remove this command line flag and Chrome will render correctly.
,
Mar 30 2018
@kbr here's the about:gpu page, in case it is still helpful :-)
---
Graphics Feature Status
Canvas: Hardware accelerated
CheckerImaging: Disabled
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Hardware accelerated
Rasterization: Software only. Hardware acceleration disabled
Video Decode: Hardware accelerated
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
add_and_true_to_loop_condition
adjust_src_dst_region_for_blitframebuffer
avoid_stencil_buffers
decode_encode_srgb_for_generatemipmap
disable_framebuffer_cmaa
disable_webgl_rgb_multisampling_usage
dont_use_loops_to_initialize_variables
emulate_abs_int_function
get_frag_data_info_bug
init_one_cube_map_level_before_copyteximage
max_msaa_sample_count_4
msaa_is_slow
pack_parameters_workaround_with_pack_buffer
rebind_transform_feedback_before_resume
regenerate_struct_names
remove_invariant_and_centroid_for_essl3
reset_base_mipmap_level_before_texstorage
rewrite_float_unary_minus_operator
rewrite_texelfetchoffset_to_texelfetch
scalarize_vec_and_mat_constructor_args
set_zero_level_before_generating_mipmap
swizzle_rgba_for_async_readpixels
unfold_short_circuit_as_ternary_operation
unpack_alignment_workaround_with_unpack_buffer
unpack_image_height_workaround_with_unpack_buffer
use_intermediary_for_copy_texture_image
use_shadowed_tex_level_params
use_unused_standard_shared_blocks
Problems Detected
Async Readpixels with GL_BGRA format is broken on Haswell chipset on Macs: 265115
Applied Workarounds: swizzle_rgba_for_async_readpixels
Unfold short circuit on Mac OS X: 307751
Applied Workarounds: unfold_short_circuit_as_ternary_operation
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Mac drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
Applied Workarounds: msaa_is_slow
glGenerateMipmap fails if the zero texture level is not set on some Mac drivers: 560499
Applied Workarounds: set_zero_level_before_generating_mipmap
Pack parameters work incorrectly with pack buffer bound: 563714
Applied Workarounds: pack_parameters_workaround_with_pack_buffer
Alignment works incorrectly with unpack buffer bound: 563714
Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer
copyTexImage2D fails when reading from IOSurface on multiple GPU types.: 581777
Applied Workarounds: use_intermediary_for_copy_texture_image
Multisample renderbuffers with format GL_RGB8 have performance issues on Intel GPUs.: 607130
Applied Workarounds: disable_webgl_rgb_multisampling_usage
Mac Drivers store texture level parameters on int16_t that overflow: 610153
Applied Workarounds: use_shadowed_tex_level_params
Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198
Applied Workarounds: disable_framebuffer_cmaa
glGetFragData{Location|Index} works incorrectly on Max: 638340
Applied Workarounds: get_frag_data_info_bug
glResumeTransformFeedback works incorrectly on Intel GPUs: 638514
Applied Workarounds: rebind_transform_feedback_before_resume
glTexStorage* are buggy when base mipmap level is not 0: 640506
Applied Workarounds: reset_base_mipmap_level_before_texstorage
Result of abs(i) where i is an integer in vertex shader is wrong: 642227
Applied Workarounds: emulate_abs_int_function
Rewrite texelFetchOffset to texelFetch for Intel Mac: 642605
Applied Workarounds: rewrite_texelfetchoffset_to_texelfetch
Rewrite condition in for and while loops for Intel Mac: 644669
Applied Workarounds: add_and_true_to_loop_condition
Do TexImage2D first before CopyTexImage2D for cube map texture on Intel Mac 10.11: 648197
Applied Workarounds: init_one_cube_map_level_before_copyteximage
Decode and encode before generateMipmap for srgb format textures on macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Insert statements to reference all members in unused std140/shared blocks on Mac: 618464
Applied Workarounds: use_unused_standard_shared_blocks
Tex(Sub)Image3D performs incorrectly when uploading from unpack buffer with GL_UNPACK_IMAGE_HEIGHT greater than zero on Intel Macs: 654258
Applied Workarounds: unpack_image_height_workaround_with_unpack_buffer
adjust src/dst region if blitting pixels outside read framebuffer on Mac: 644740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
Mac driver GL 4.1 requires invariant and centroid to match between shaders: 639760, 641129
Applied Workarounds: remove_invariant_and_centroid_for_essl3
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Rewrite -float to 0.0 - float for Intel Mac: 672380
Applied Workarounds: rewrite_float_unary_minus_operator
Certain Apple devices leak stencil buffers: 713854
Applied Workarounds: avoid_stencil_buffers
Don't expose disjoint_timer_query extensions to WebGL: 808744
Shader variable initialization in a loop caused perf regression on Mac Intel.: 809422
Applied Workarounds: dont_use_loops_to_initialize_variables
8x MSAA is slow for alpha:false WebGL contexts on Mac Intel: 812071
Applied Workarounds: max_msaa_sample_count_4
Accelerated rasterization has been disabled, either via blacklist, about:flags or the command line.
Disabled Features: rasterization
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported 2018-03-30T18:59:05.090Z
Chrome version Chrome/65.0.3325.181
Operating system Mac OS X 10.11.6
Software rendering list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/software_rendering_list.json
Driver bug list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/gpu_driver_bug_list.json
ANGLE commit id 2c9cc8b6e810
2D graphics backend Skia/65 8a3e0b31927ae78bc3e9c342b1290a6a64233674-
Command Line /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --disable-gpu-rasterization --flag-switches-begin --ignore-gpu-blacklist --flag-switches-end
Driver Information
Initialization time 154
In-process GPU false
Passthrough Command Decoder false
Direct Composition false
Supports overlays false
Sandboxed true
GPU0 VENDOR = 0x8086, DEVICE= 0x0a26 *ACTIVE*
Optimus false
Optimus false
AMD switchable false
Driver vendor
Driver version 10.14.74
Driver date
Pixel shader version 4.10
Vertex shader version 4.10
Max. MSAA samples 8
Machine model name MacBookAir
Machine model version 6.2
GL_VENDOR Intel Inc.
GL_RENDERER Intel HD Graphics 5000 OpenGL Engine
GL_VERSION 4.1 INTEL-10.14.74
GL_EXTENSIONS GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor
Window system binding version
Window system binding extensions
Direct rendering Yes
Reset notification strategy 0x0000
GPU process crash count 0
Compositor Information
Tile Update Mode Zero-copy
Partial Raster Enabled
GpuMemoryBuffers Status
ATC Software only
ATCIA Software only
DXT1 Software only
DXT5 Software only
ETC1 Software only
R_8 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
R_16 Software only
RG_88 Software only
BGR_565 Software only
RGBA_4444 Software only
RGBX_8888 Software only
RGBA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_1010102 Software only
BGRA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
RGBA_F16 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
YVU_420 Software only
YUV_420_BIPLANAR GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
UYVY_422 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
Display(s) Information
Info Display[69680128] bounds=0,0 1440x900, workarea=0,23 1440x873, scale=1, external
Color space information {primaries:[[0.3981,0.4163,0.1498,],[0.2346,0.6671,0.0983,],[0.0383,0.0919,0.6946,],], transfer:0.0774*x + 0.0000 if x < 0.0404 else (0.9479*x + 0.0521)**2.4000 + 0.0000, matrix:RGB, range:FULL}
Bits per color component 8
Bits per pixel 24
Video Acceleration Information
Decode h264 baseline up to 4096x2160 pixels
Decode h264 extended up to 4096x2160 pixels
Decode h264 main up to 4096x2160 pixels
Decode h264 high up to 4096x2160 pixels
Encode h264 baseline up to 4096x2160 pixels and/or 30.000 fps
Encode h264 main up to 4096x2160 pixels and/or 30.000 fps
Encode h264 high up to 4096x2160 pixels and/or 30.000 fps
,
Mar 30 2018
micah.stubbs@: sorry, I can not reproduce this behavior. Is #9 above your about:gpu? If not, please provide about:gpu from your machine when --ignore-gpu-blacklist is *not* specified on the command line.
,
Mar 30 2018
micah.stubbs@: your comment and mine collided. I still need to see the output of about:gpu with no command line flags specified, neither --ignore-gpu-blacklist nor --disable-gpu-rasterization , and need to know whether Chrome renders correctly in this configuration. It may be helpful if you launch Chrome with a fresh user profile, e.g. from the command line: /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --user-data-dir=/tmp/t1
,
Mar 30 2018
@kbr ah, thanks for clarifying :-)
of course, so I will start Chrome from the command line with this command you shared:
`/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --user-data-dir=/tmp/t1`
when I do that, I don't see the rendering bugs. (maybe the root-cause is somehow user-specific? that seems weird...)
here is the output of chrome://gpu/
---
Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
CheckerImaging: Disabled
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Hardware accelerated
Rasterization: Unavailable
Video Decode: Hardware accelerated
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
add_and_true_to_loop_condition
adjust_src_dst_region_for_blitframebuffer
avoid_stencil_buffers
decode_encode_srgb_for_generatemipmap
disable_framebuffer_cmaa
disable_webgl_rgb_multisampling_usage
dont_use_loops_to_initialize_variables
emulate_abs_int_function
get_frag_data_info_bug
init_one_cube_map_level_before_copyteximage
max_msaa_sample_count_4
msaa_is_slow
pack_parameters_workaround_with_pack_buffer
rebind_transform_feedback_before_resume
regenerate_struct_names
remove_invariant_and_centroid_for_essl3
reset_base_mipmap_level_before_texstorage
rewrite_float_unary_minus_operator
rewrite_texelfetchoffset_to_texelfetch
scalarize_vec_and_mat_constructor_args
set_zero_level_before_generating_mipmap
swizzle_rgba_for_async_readpixels
unfold_short_circuit_as_ternary_operation
unpack_alignment_workaround_with_unpack_buffer
unpack_image_height_workaround_with_unpack_buffer
use_intermediary_for_copy_texture_image
use_shadowed_tex_level_params
use_unused_standard_shared_blocks
Problems Detected
Rendering artifacts on older macOS releases and Intel GPUs: 794819
Disabled Features: accelerated_2d_canvas, gpu_rasterization
Async Readpixels with GL_BGRA format is broken on Haswell chipset on Macs: 265115
Applied Workarounds: swizzle_rgba_for_async_readpixels
Unfold short circuit on Mac OS X: 307751
Applied Workarounds: unfold_short_circuit_as_ternary_operation
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Mac drivers handle struct scopes incorrectly: 403957
Applied Workarounds: regenerate_struct_names
On Intel GPUs MSAA performance is not acceptable for GPU rasterization: 527565
Applied Workarounds: msaa_is_slow
glGenerateMipmap fails if the zero texture level is not set on some Mac drivers: 560499
Applied Workarounds: set_zero_level_before_generating_mipmap
Pack parameters work incorrectly with pack buffer bound: 563714
Applied Workarounds: pack_parameters_workaround_with_pack_buffer
Alignment works incorrectly with unpack buffer bound: 563714
Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer
copyTexImage2D fails when reading from IOSurface on multiple GPU types.: 581777
Applied Workarounds: use_intermediary_for_copy_texture_image
Multisample renderbuffers with format GL_RGB8 have performance issues on Intel GPUs.: 607130
Applied Workarounds: disable_webgl_rgb_multisampling_usage
Mac Drivers store texture level parameters on int16_t that overflow: 610153
Applied Workarounds: use_shadowed_tex_level_params
Use GL_INTEL_framebuffer_CMAA on ChromeOS: 535198
Applied Workarounds: disable_framebuffer_cmaa
glGetFragData{Location|Index} works incorrectly on Max: 638340
Applied Workarounds: get_frag_data_info_bug
glResumeTransformFeedback works incorrectly on Intel GPUs: 638514
Applied Workarounds: rebind_transform_feedback_before_resume
glTexStorage* are buggy when base mipmap level is not 0: 640506
Applied Workarounds: reset_base_mipmap_level_before_texstorage
Result of abs(i) where i is an integer in vertex shader is wrong: 642227
Applied Workarounds: emulate_abs_int_function
Rewrite texelFetchOffset to texelFetch for Intel Mac: 642605
Applied Workarounds: rewrite_texelfetchoffset_to_texelfetch
Rewrite condition in for and while loops for Intel Mac: 644669
Applied Workarounds: add_and_true_to_loop_condition
Do TexImage2D first before CopyTexImage2D for cube map texture on Intel Mac 10.11: 648197
Applied Workarounds: init_one_cube_map_level_before_copyteximage
Decode and encode before generateMipmap for srgb format textures on macosx: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Insert statements to reference all members in unused std140/shared blocks on Mac: 618464
Applied Workarounds: use_unused_standard_shared_blocks
Tex(Sub)Image3D performs incorrectly when uploading from unpack buffer with GL_UNPACK_IMAGE_HEIGHT greater than zero on Intel Macs: 654258
Applied Workarounds: unpack_image_height_workaround_with_unpack_buffer
adjust src/dst region if blitting pixels outside read framebuffer on Mac: 644740
Applied Workarounds: adjust_src_dst_region_for_blitframebuffer
Mac driver GL 4.1 requires invariant and centroid to match between shaders: 639760, 641129
Applied Workarounds: remove_invariant_and_centroid_for_essl3
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Rewrite -float to 0.0 - float for Intel Mac: 672380
Applied Workarounds: rewrite_float_unary_minus_operator
Certain Apple devices leak stencil buffers: 713854
Applied Workarounds: avoid_stencil_buffers
Don't expose disjoint_timer_query extensions to WebGL: 808744
Shader variable initialization in a loop caused perf regression on Mac Intel.: 809422
Applied Workarounds: dont_use_loops_to_initialize_variables
8x MSAA is slow for alpha:false WebGL contexts on Mac Intel: 812071
Applied Workarounds: max_msaa_sample_count_4
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported 2018-03-30T22:02:19.393Z
Chrome version Chrome/65.0.3325.181
Operating system Mac OS X 10.11.6
Software rendering list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/software_rendering_list.json
Driver bug list URL https://chromium.googlesource.com/chromium/src/+/dc3469be277cc962ba01d9c0cb5bb1a265676c36/gpu/config/gpu_driver_bug_list.json
ANGLE commit id 2c9cc8b6e810
2D graphics backend Skia/65 8a3e0b31927ae78bc3e9c342b1290a6a64233674-
Command Line /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --user-data-dir=/tmp/t1 --flag-switches-begin --flag-switches-end
Driver Information
Initialization time 160
In-process GPU false
Passthrough Command Decoder false
Direct Composition false
Supports overlays false
Sandboxed true
GPU0 VENDOR = 0x8086, DEVICE= 0x0a26 *ACTIVE*
Optimus false
Optimus false
AMD switchable false
Driver vendor
Driver version 10.14.74
Driver date
Pixel shader version 4.10
Vertex shader version 4.10
Max. MSAA samples 8
Machine model name MacBookAir
Machine model version 6.2
GL_VENDOR Intel Inc.
GL_RENDERER Intel HD Graphics 5000 OpenGL Engine
GL_VERSION 4.1 INTEL-10.14.74
GL_EXTENSIONS GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Disabled WebGL Extensions EXT_disjoint_timer_query EXT_disjoint_timer_query_webgl2
Window system binding vendor
Window system binding version
Window system binding extensions
Direct rendering Yes
Reset notification strategy 0x0000
GPU process crash count 0
Compositor Information
Tile Update Mode Zero-copy
Partial Raster Enabled
GpuMemoryBuffers Status
ATC Software only
ATCIA Software only
DXT1 Software only
DXT5 Software only
ETC1 Software only
R_8 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
R_16 Software only
RG_88 Software only
BGR_565 Software only
RGBA_4444 Software only
RGBX_8888 Software only
RGBA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE
BGRX_1010102 Software only
BGRA_8888 GPU_READ, SCANOUT, SCANOUT_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
RGBA_F16 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
YVU_420 Software only
YUV_420_BIPLANAR GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
UYVY_422 GPU_READ, SCANOUT, GPU_READ_CPU_READ_WRITE, GPU_READ_CPU_READ_WRITE_PERSISTENT
Display(s) Information
Info Display[69680128] bounds=0,0 1440x900, workarea=0,23 1440x873, scale=1, external
Color space information {primaries:[[0.3981,0.4163,0.1498,],[0.2346,0.6671,0.0983,],[0.0383,0.0919,0.6946,],], transfer:0.0774*x + 0.0000 if x < 0.0404 else (0.9479*x + 0.0521)**2.4000 + 0.0000, matrix:RGB, range:FULL}
Bits per color component 8
Bits per pixel 24
Video Acceleration Information
Decode h264 baseline up to 4096x2160 pixels
Decode h264 extended up to 4096x2160 pixels
Decode h264 main up to 4096x2160 pixels
Decode h264 high up to 4096x2160 pixels
Encode h264 baseline up to 4096x2160 pixels and/or 30.000 fps
Encode h264 main up to 4096x2160 pixels and/or 30.000 fps
Encode h264 high up to 4096x2160 pixels and/or 30.000 fps
,
Mar 30 2018
micah.stubbs@: I think the root cause is that you were passing --ignore-gpu-blacklist. Unless there's something really strange going on with experiments with GPU rasterization, launching Chrome without any command line arguments should render the same as with --user-data-dir=/tmp/t1 .
,
Apr 6 2018
"--ignore-gpu-blacklist is being passed. This prevents Chrome's blacklist from working. Please remove this command line flag and Chrome will render correctly." How do I remove a command line flag?
,
Apr 6 2018
If you haven't explicitly passed it then go to about:flags and click the "Reset All to Default" button at the top, then restart your browser. |
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Comment 1 by bokan@chromium.org
, Mar 26 2018