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Issue 827913 link

Starred by 2 users

Issue metadata

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



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element flickers/flashing when system scaling or Chrome page zoom level is at percentages like 175%

Reported by billdill...@gmail.com, Apr 2 2018

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36

Example URL:

Steps to reproduce the problem:
set Windows 10 system scaling to 175% or play with Chromes page zoom level at this website https://www.cnn.com/2018/04/01/politics/anthony-kennedy-supreme-court-future/index.html and scroll down a bit. the ad flashes/flickers at certain scroll positions

What is the expected behavior?

What went wrong?
here is a video of what I'm seeing https://drive.google.com/file/d/1N1PUBDlF7A-EVQbzMSOrrPRepNQ6_lFo/view?usp=sharing I cannot reproduce this issue in Edge. Also, it's not specific to that article, it's almost any article on cnn.com. 

Does it occur on multiple sites: N/A

Is it a problem with a plugin? N/A 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 65.0.3325.181  Channel: stable
OS Version: 10.0
Flash Version:
 
Labels: Needs-Triage-M65
Cc: vamshi.kommuri@chromium.org
Components: Blink
Labels: -Type-Compat Triaged-ET M-67 Target-67 FoundIn-67 Type-Bug
Status: Untriaged (was: Unconfirmed)
Thanks for filing the issue!

Able to reproduce the issue on reported chrome version 65.0.3325.181 and on the latest canary 67.0.3386.0 using Windows 10. 
Note: Couldn't check the issue on Mac 10.13.1 and ubuntu 14.04 as we are unable to set the scaling exactly to 175%.

As the issue is seen from M60(60.0.3072.0) considering it as Non-Regression and marking it as Untriaged.

Comment 3 by tkent@chromium.org, Apr 4 2018

Components: -Blink Blink>Compositing
Labels: -Target-67
Status: Available (was: Untriaged)
Not great but not sure when we'll get to it.
I can no longer repro this when I disable "Use Blink's zoom for device scale factor" flag
Thanks for the info in how to avoid the issue. Unfortunately it's bad news for us because the trend is toward using zoom for everything, and removing the notion of device scale factor entirely.
Oh I'm not suggesting zoom for dsf should be disabled, I just thought this could help narrow down the cause of the issue 

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