Blur and Fixed Position Vanishes
Reported by
x.brazil...@gmail.com,
Mar 21 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36 Example URL: https://jsfiddle.net/x0fevw6g/ Steps to reproduce the problem: 1. Have a CSS filter: blur(Xpx) 2. Have a fixed position element on the page 3. Make the content of the page not fit into the viewport What is the expected behavior? Content still displays in a blurred manner What went wrong? Content disappears, or in bad cases, causes major graphical issues. Does it occur on multiple sites: N/A Is it a problem with a plugin? No Did this work before? Yes Unknown Does this work in other browsers? Yes Chrome version: 65.0.3325.181 Channel: stable OS Version: OS X 10.11.6 Flash Version: This appears to work on some machines and not others. The initial observation was on a production website which previously worked but now shows major graphical problems when blurring the content.
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Mar 21 2018
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Mar 22 2018
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Mar 22 2018
Unable to reproduce the issue on chrome reported version 65.0.3325.181 using MacBook Air 10.12.6 and MacBook Pro 10.13.3 with steps mentioned below: 1) Launched chrome reported version and navigated to jsfiddle: https://jsfiddle.net/x0fevw6g/ 2) Opened Devtools, under elements tab, unchecked the filter option, able to see clearly clearly 3) Unchecked and checked the position element, didn't observed any disappear of content @Reporter: Please find the attached screen cast for your reference and let us know if we missed anything in reproducing the issue, try to test this issue by creating new person with no apps and extensions in it and let us know if the issue still persists. Thanks!
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Mar 22 2018
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Mar 22 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
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Mar 23 2018
Unable to reproduce the issue on chrome reported version 65.0.3325.181 using MacBook Air 10.12.6 and MacBook Pro 10.13.3 with steps mentioned below: 1) Launched chrome reported version and navigated to jsfiddle: https://jsfiddle.net/x0fevw6g/ 2) Opened Devtools, under elements tab, unchecked the filter option, able to see clearly clearly 3) Unchecked and checked the position element, didn't observed any disappear of content after changing the value of fixed to absolute,relative & static. @Reporter: Please find the attached screen cast for your reference and let us know if we missed anything in reproducing the issue, provide your feedback on it which help in further triaging it. Thanks!
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Mar 23 2018
It appears you have done everything which would cause a break on some machines we've seen, and not others. I'm not sure why there would be a difference, as identical machines with similar configurations have different results (success vs. failure.) I'm happy to do some extra investigation work on machines which exhibit the fault, but not sure what I can do to help at this point.
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Mar 23 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
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Mar 26 2018
As per comment# 4 & 8 checked the issue on reported version 65.0.3325.181 using Mac 10.12.6 and is not reproducible. As the issue is not reproducible from TE end, hence removing Needs-Bisect label. Could anyone from the Blink > Paint team have a look at this issue. Thanks!
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Mar 26 2018
Could you paste the output from visiting chrome://gpu on a machine that works and one that fails. This might be GPU related in some way that is not obvious. It may also be related to experiments that change chrome's behavior, but I doubt it in this case. To see that, go to chrome://version and put the contents here, again for working and not working machines.
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Mar 26 2018
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Apr 11 2018
On a non-working machine 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
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
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 2018-04-11T11:01:27.464Z
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 --enable-features=WebAssembly --flag-switches-end
Driver Information
Initialization time 53
In-process GPU false
Passthrough Command Decoder false
Direct Composition false
Supports overlays false
Sandboxed true
GPU0 VENDOR = 0x8086, DEVICE= 0x0d26 *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 MacBookPro
Machine model version 11.4
GL_VENDOR Intel Inc.
GL_RENDERER Intel Iris Pro 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[69733248] bounds=0,0 1920x1200, workarea=0,23 1920x1173, 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
Info Display[724047697] bounds=-1920,-474 1920x1200, workarea=-1920,-451 1920x1177, scale=1, external
Color space information {primaries:[[0.4373,0.3772,0.1497,],[0.2180,0.7146,0.0674,],[0.0030,0.0819,0.7400,],], 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
Info Display[724069714] bounds=-3840,-474 1920x1200, workarea=-3840,-451 1920x1177, scale=1, external
Color space information {primaries:[[0.4373,0.3772,0.1497,],[0.2180,0.7146,0.0674,],[0.0030,0.0819,0.7400,],], 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
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Apr 11 2018
On a non-working machine chrome://version Google Chrome 65.0.3325.181 (Official Build) (64-bit) Revision dc3469be277cc962ba01d9c0cb5bb1a265676c36-refs/branch-heads/3325@{#725} OS Mac OS X JavaScript V8 6.5.254.41 Flash 29.0.0.140 /Users/sgo21/Library/Application Support/Google/Chrome/PepperFlash/29.0.0.140/PepperFlashPlayer.plugin User Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36 Command Line /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --flag-switches-begin --enable-features=WebAssembly --flag-switches-end Executable Path /Applications/Google Chrome.app/Contents/MacOS/Google Chrome Profile Path /Users/sgo21/Library/Application Support/Google/Chrome/Default Variations bd23585d-3f4a17df c134752e-b8b72c88 59aeb88e-3f4a17df a6674cf-ca7d8d80 3095aa95-3f4a17df d52c4ff7-d52c4ff7 47e5d3db-3d47f4f4 4dc30737-b8a5ea08 34d450b1-3f4a17df f9884634-659882c0 57f575bb-3d47f4f4 120703dd-3f4a17df f347910c-3f4a17df 4b61504a-c9eb6633 9773d3bd-f23d1dea 8e3b2dc5-93702590 9e5c75f1-cafbc45c c322f799-2dbe5f9 3de1fbf2-3f4a17df f79cb77b-3d47f4f4 4ea303a6-ecbb250e 2b33233e-d8253d6f 72606c4f-3f4a17df 58a025e3-c2b41702 1bced4a3-90fa85cd b2f0086-d6b26420 2d871858-3f4a17df 4bc337ce-69465896 9a2f4e5b-d226bfeb 494d8760-52325d43 f47ae82a-86f22ee5 3ac60855-486e2a9c f296190c-30f715f3 4442aae2-75cb33fc ed1d377-e1cc0f14 12e17bc5-e1cc0f14 75f0f0a0-d7f6b13c e2b18481-a5822863 e7e71889-e1cc0f14 34baa302-d25ea691 f5fff3a2-ca7d8d80 98426e68-ca7d8d80 94e68624-803f8fc4 da4aaa01-4d2fac87
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Apr 11 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
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Apr 11 2018
Over to the GPU team to see if there are any red flags here. I tried linux with GPU disabled and it did not reproduce.
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Apr 16 2018
The NextAction date has arrived: 2018-04-16
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Apr 16 2018
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Apr 26 2018
As per comment #4 and #8, it seems that the issue is not reproducible from TE-end. Hence, adding label TE-NeedsTriageHelp for further investigation from Internals>GPU team. Thanks...!!
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Apr 27 2018
Can you please post chrome://version from a machine where this is working as expected? The interesting bit is the "Variations" list.
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Apr 27 2018
Oh and chrome://gpu too.
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Jun 1 2018
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Jul 9
Mac triage: WontFix old issue without feedback. |
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Comment 1 by gov...@chromium.org
, Mar 21 2018