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Issue 809087 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Dec 13
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 2
Type: Bug



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Animated composited layers aren't being cleared correctly

Reported by krof.dra...@gmail.com, Feb 5 2018

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36

Example URL:
https://cointrackr.com/

Steps to reproduce the problem:
1. opening the page produces the animated loader
2. when rectangles scale & rotate in the animation, the previous frame is not completely cleared for the next frame, leaving behind edge trails

What is the expected behavior?
Drawn layers should be completely cleared before next frame.

What went wrong?
Here's an example of the trails being rendered in the animation.

I'm also attaching the about:gpu output for debug info.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? Yes 63

Does this work in other browsers? Yes

Chrome version: 64.0.3282.140  Channel: stable
OS Version: 10.0
Flash Version: 

First reported in  issue #691262 , told to file a new bug.
 
example.gif
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gpu.html
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Owner: geoffl...@chromium.org
Assigning to geofflang@ to take a look due to being owner of the related  issue #691262 .
Labels: Needs-Triage-M64
Labels: Needs-Bisect
Cc: vamshi.k...@techmahindra.com
Labels: Triaged-ET
Unable to reproduce the issue on reported chrome version 64.0.3282.140 and on the latest canary 66.0.3341.0 using Windows 10 with the below mentioned steps.
1. Launched Chrome
2. Navigated to https://cointrackr.com/
We didn't observe any trails while loading. Attaching the screen cast for reference.

@geofflang: Could you please help in triaging the issue further.

Thanks!
809087.mp4
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I've reproduced this issue on Win 10 Pro x64 on two different machines; one with the Intel integrated chipset and one with an Intel i7 paired with an nVidia 1080 Ti. The latter was exhibiting these problems for the last couple of stable version of Chrome, but I've only noticed the trails on my laptop with the latest version, but I could be mistaken, since I don't use it nearly as often as the desktop.
Labels: Needs-Feedback
Checked the issue on reported chrome version 64.0.3282.140 and on the latest canary 66.0.3342.0 using Windows 10 Surface Pro with Intel(R) HD Graphics 520.
Still we are unable to see any traces while loading the page. 

@Reporter: As you mentioned in comment#5 that you have noticed the trails only on your laptop, Could you please confirm whether the issue is seen on any other machines with latest chrome versions.

Thanks!
As I've mentioned in the previous comment, in addition to my Spectre x360 laptop, there's my desktop machine with an Intel i7 (no integrated graphics) paired with nVidia 1080 Ti which has been exhibiting this problem (and the diagonal line problem linked in the description) for the last couple of versions (at least 62, I think, maybe even before that).

Unfortunately, I don't have that machine available currently, so I haven't checked version 64.0 on it yet.
Project Member

Comment 8 by sheriffbot@chromium.org, Feb 7 2018

Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "vamshi.kommuri@techmahindra.com" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
I'll try to report back with the data from the desktop machine when I have it connected to the net again.
Labels: Needs-Feedback
As per comment#9 by reporter adding Needs-Feedback label.

Thanks!
I've had a chance to retest this on the desktop machine with nVidia 1080 Ti and an Intel i7. I see the same thing happening as on the Spectre x360 laptop. Attached is a GIF of the issue.

Also note, I am not using UI scaling on either the desktop or laptop on Windows 10, they're both running at devicePixelRatio == 1.
gpu.html
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GIF.gif
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Project Member

Comment 12 by sheriffbot@chromium.org, Feb 22 2018

Labels: -Needs-Feedback
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

Comment 13 by woxxom@gmail.com, Feb 22 2018

Reporter, maybe you can perform a bisect yourself, see https://www.chromium.org/developers/bisect-builds-py
It's quite simple:
1) download the script and install python v2
2) run the script:
py bisect-builds.py -a win64 -g 400000 -b 999999
3) observe the bug and input g or b for good/bad status in the script window until the script produces the changelog link
4) copypaste that final block of text here
5) repeat steps 2-3 to ensure you get the correct results
Components: Blink>Animation
Labels: -Type-Compat -Needs-Bisect M-66 Target-65 FoundIn-66 Target-66 FoundIn-64 FoundIn-65 Target-64 OS-Linux Type-Bug
Status: Untriaged (was: Unconfirmed)
krof.drakula@ Thanks for the feedback.

Tested this issue on Windows 10 and Ubuntu 14.04 on the latest Stable 64.0.3282.186 and Canary 66.0.3352.0 and able to reproduce the issue.
Issue is not observed on Mac OS 10.12.6.

On navigating to the given link, can observe that trails are seen when the rectangles are rotated.
Unable to provide the bisect info as the issue is inconsistent.
Attached is the screen cast for reference.

Also attached is the chrome://gpu details.

Marking this as Untriaged for further updates from Dev team.

Thanks..
809087.webm
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gpu.html
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Owner: ----
I'm definitely not the right owner if this is seen on non-windows.  It should be picked up by the blink triage.

Comment 16 by sunxd@chromium.org, Feb 23 2018

Cc: flackr@chromium.org sunxd@chromium.org
Labels: Needs-Feedback
Status: Available (was: Untriaged)
Cannot reproduce this issue on linux desktop.

krof.drakula@: as mentioned in #13, can you please perform a bisect locally? I'll make the issue available per #14.
Labels: Hotlist-Interop
Status: WontFix (was: Available)
Due to lack of feedback from OP and lack of reproduction, closing as WontFix
This seems to have been resolved in some of the versions between 65 and 70; I don't see it happening on v70 currently.

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