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Starred by 2 users

Issue metadata

Status: Available
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug-Regression



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Regression: Weird flickering is observed on playing video in https://ride.uber.com

Reported by dmascare...@etouch.net, Nov 10 2016

Issue description

Chrome Version:56.0.2914.1 (Official Build) 053f6e8e059ceba139a584c213c6cbd046839b8f-refs/branch-heads/2914@{#2}
OS: Windows(7,8,10)

What steps will reproduce the problem?
1. Launch chrome and navigate to https://ride.uber.com/en_US/video
2. Observe the page.

Actual:  Weird flickering is observed on playing video.
Expected: Flickering should not be seen.

This is regression issue , broken in 'M 55' and below manual bisect info:
Good build:55.0.2871.0
Bad build:55.0.2873.0

 
Actual_video.mp4
1.2 MB View Download
Note: Issue is not reproducible Mac and Linux OS.
Labels: Needs-Bisect
Status: Untriaged (was: Unconfirmed)
Cc: danakj@chromium.org
Labels: -Needs-Bisect hasbisect
Owner: schenney@chromium.org
Status: Assigned (was: Untriaged)
Providing ChangeLog:
(Unable to narrow down the range since getting all bad chromium builds via tool)

https://chromium.googlesource.com/chromium/src/+log/55.0.2871.0..55.0.2873.0?pretty=fuller&n=10000

Suspecting: r420955 ?

Kindly help to re-assign if your change is not the cause for this issue.
Labels: -Pri-1 Pri-2
My change is very not likely causing this. There is no overflow scrolling content on the page.

As far as I can tell, the page is animating a background image position-y from 0 to 180000px with repeat-y. The artifacts appear after the animation has been running a while, suggesting that we are running into trouble tiling the background image with large offsets. I'm surprised that it's Windows only, but maybe that's because it's a GPU issue and we're hitting Direct-X limits.

It's also not 100% reproducible.

This is not a P1 bug.


Comment 5 by e...@chromium.org, Apr 7 2017

Components: -Blink>Layout Internals>GPU
Cc: -msrchandra@chromium.org schenney@chromium.org
Owner: ----
Status: Available (was: Assigned)

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