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Screen flickering when hovering over HTML5 videos with controls turned on
Reported by
varga.cs...@gmail.com,
Jan 2 2017
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36 Steps to reproduce the problem: 1. turn on the video control on any video 2. hold the mouse over the video until the control dissappears What is the expected behavior? the control overlay just simply disappears What went wrong? the page flashes once when the control disappears about 1 times out of 5 I've attached a screenshot captured on the original page compared to what should be seen. Did this work before? N/A Does this work in other browsers? Yes Chrome version: 55.0.2883.87 Channel: stable OS Version: 10.0 Flash Version: Shockwave Flash 24.0 r0 On the original page there were only 5 five videos but that page was more robust so the problem occured more frequently. Seems like it occurs more often when more videos are loaded.
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Jan 4 2017
Thanks for the report.Unable to reproduce the issue on Win 10 using 55.0.2883.87.Could you please take a look into this and update if anything is missed from our end.
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Jan 4 2017
Sorry, i was telling it wrong, but i've captured a video. Here it is. Unfortunately it did not recorded the cursor, but i was just hovering over the videos one by one.
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Jan 10 2017
dalecurtis@: Could you please help triage this?
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Jan 10 2017
Seems to be compositing related. If you run Chrome with --disable-gpu do you see this issue?
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Jan 10 2017
Could you also attach a copy of chrome://gpu from your computer?
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Jan 11 2017
I still see the issue when running chrome with --disable-gpu.
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Jan 17 2017
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Jan 19 2017
varga.csaba.portfolio@gmail.com, would you be able to attach a copy of the chrome://gpu output? This may be a tile management issue, but unable to reproduce.
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Jan 19 2017
I've attached the gpu output in comment 8.
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Jan 23 2017
Copy paste top of page from comment #8 Graphics Feature Status Canvas: Software only, hardware acceleration unavailable Flash: Hardware accelerated Flash Stage3D: Hardware accelerated Flash Stage3D Baseline profile: Hardware accelerated Compositing: Hardware accelerated Multiple Raster Threads: Enabled Native GpuMemoryBuffers: Software only. Hardware acceleration disabled Rasterization: Software only. Hardware acceleration disabled Video Decode: Hardware accelerated Video Encode: Hardware accelerated VPx Video Decode: Hardware accelerated WebGL: Hardware accelerated Driver Bug Workarounds clear_uniforms_before_first_program_use disable_discard_framebuffer disable_dxgi_zero_copy_video disable_framebuffer_cmaa disable_nv12_dxgi_video exit_on_context_lost scalarize_vec_and_mat_constructor_args Problems Detected GPU rasterization should only be enabled on NVIDIA Pascal and Maxwell, Intel Broadwell+, and AMD RX-R5 GPUs for now.: 643850 Disabled Features: gpu_rasterization AMD cards have rendering issues with GPU rasterization on Windows: 660897 Disabled Features: gpu_rasterization Some drivers are unable to reset the D3D device in the GPU process sandbox Applied Workarounds: exit_on_context_lost Clear uniforms before first program use on all platforms: 124764, 349137 Applied Workarounds: clear_uniforms_before_first_program_use Always rewrite vec/mat constructors to be consistent: 398694 Applied Workarounds: scalarize_vec_and_mat_constructor_args Framebuffer discarding can hurt performance on non-tilers: 570897 Applied Workarounds: disable_discard_framebuffer NV12 DXGI video hangs or displays incorrect colors on AMD drivers: 623029, 644293 Applied Workarounds: disable_dxgi_zero_copy_video, disable_nv12_dxgi_video Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198 Applied Workarounds: disable_framebuffer_cmaa Accelerated rasterization has been disabled, either via blacklist, about:flags or the command line. Disabled Features: rasterization Native GpuMemoryBuffers have been disabled, either via about:flags or command line. Disabled Features: native_gpu_memory_buffers
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Jan 31 2017
Thank you for providing more feedback. Adding requester "durga.behera@chromium.org" for another review and adding "Needs-Review" label for tracking. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Feb 16 2017
I'm unable to reproduce the issue on Chrome Canary 58.0.3013.0.
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Mar 13 2017
Cleaning up "Needs-Review" label as we are not using this label for triage. Ref bug 684919
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Mar 13 2017
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Mar 24 2017
There looks like a cluster of flashing bugs that have been filed recently: issue 677832 , issue 677153, issue 677899. Most are Mac, but some are Windows.
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Mar 24 2017
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Mar 24 2017
Duping up to issue 677899, needs investigation. |
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Comment 1 by ajha@chromium.org
, Jan 4 2017