Regression: Unwanted black line is seen and flickering is seen while hovering on video element |
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Issue descriptionChrome Version: 65.0.3298.3 dev OS: Mac 10.13.1, Ubuntu 14.04 , Windows 10 What steps will reproduce the problem? (1) Launch chrome and navigate to https://developers.google.com/web/updates/2017/12/nic63 (2) Reload page and observe video element present there (3) Hover on it and observe Expected: No black line should be seen and on hovering no flickering should be seen. Actual: Instead unwanted black line is seen and element flickers on hovering. Attaching screencast for reference. Good Build: 65.0.3287.0 Bad Build: 65.0.3288.0 You are probably looking for a change made after 522576 (known good), but no later than 522577 (first known bad). CHANGELOG URL: The script might not always return single CL as suspect as some perf builds might get missing due to failure. https://chromium.googlesource.com/chromium/src/+log/afccf64114b233fe65af7526b2f015efb2d1e7c1..88986f832c463a210324d7d9cf9b5213f7b69f63 Reviewed-on: https://chromium-review.googlesource.com/772779 Suspecting same from changelog. @schenney: Please confirm the issue and help in re-assigning if it is not related to your change. Thanks!
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Dec 19 2017
I'm out for a couple of weeks as of now. To see this, open DevTools, find the overlay layer that has a background image, and toggle the background image on and off. The fact we get really odd uneven edges and sometime black and sometimes not etc suggests to me that the repaint area is flaky in some way. Could be clip, could be layer sizing, could be repaint rect.
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Jan 9 2018
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May 22 2018
This bug is P1 but has had no action for months. Please don't leave P1 bugs sitting around. @schenney it was originally bisected to you, could you please investigate a fix? Back in December you sent it to trchen because you'd be out on vacation for a little while.
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May 22 2018
Should have checked the status against SPv175. I can't repro on M-67 Linux or Windows 10. |
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Comment 1 by sc00335...@techmahindra.com
, Dec 19 2017