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Issue 711639 link

Starred by 1 user
Status: Duplicate
Merged: issue 710443
Owner:
ericrk@chromium.org
Closed: Apr 2017
Cc:
█ bsalomon@chromium.org
mac-bugs-priority@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug



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GPU rasterization on mac with intel GPUs: garbage is rendered on some elements

Project Member Reported by ah...@yandex-team.ru, Apr 14 2017 
The attached html file is rendered incorrectly, please see attached images expected.png, bug1 and  bug2 .png.
This happens often after switching tabs. To reproduce, try opening the attached bug.html and youtube in different tabs, and switch between them.
Note: the presence of sidebar in the left on youtube makes it repro almost every time (see sidebar.png for what I mean).

So far we've seen this bug only on macbooks with macOS 10.12 that have only integrated intel GPUs: Iris 6100 or HD 6000.

The bug does not happen with software rasterization.
We started observing this bug on an internal site starting with M56, and it is present in a recent dev build 59.0.3071.0.

I also attached chrome://gpu of chrome 57 stable and chromium 59 from an affected machine.
bug.html
562 bytes View Download
bug1.png
41.7 KB View Download
bug2.png
22.3 KB View Download
expected.png
2.2 KB View Download
sidebar.png
98.6 KB View Download
chrome_gpu_M57_stable.htm
49.1 KB View Download
chrome_gpu_M59.htm
281 KB View Download

Comment 1 by ah...@yandex-team.ru, Apr 14 2017 

Bisect led me to the following range:
https://chromium.googlesource.com/chromium/src/+log/336ebfae1a3dec77c73c4d545965941d935f1b99..994570aa6d910bcf0f0fd54c0beb52b3daf5fe23
BTW, with older revisions images from youtube almost never appear on the test page, but chromium logo from chrome://version does.

Comment 2 by ericrk@chromium.org, Apr 14 2017

Cc: bsalomon@chromium.org
Labels: -Pri-3 Pri-1
Owner: ericrk@chromium.org
Status: Assigned (was: Unconfirmed)
Thanks for finding this - taking a look.

Comment 3 by ericrk@chromium.org, Apr 17 2017

Mergedinto: 710443
Status: Duplicate (was: Assigned)
Seems like a duplicate of  issue 710443 , will continue investigating on that bug.
►

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