New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 618994 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 627666
Owner:
Closed: Jul 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug-Regression



Sign in to add a comment

Regression: Scroll bar disappears after clicking on 'Scroll' icon at 'accenture.com'.

Reported by jshan...@etouch.net, Jun 10 2016

Issue description

Chrome Version: 53.0.2764.0 (Official Build)bd10cc1ecbbcc95f143d19911a6d3b81b8043d65-refs/heads/master@{#399036} 64 bit
OS: Mac (10.11.4)

URL: https://www.accenture.com/in-en/careers

Steps:
1. Launch Chrome and navigate to above url.
2. Scroll down the page via mouse wheel and click on 'To top' seen at  top L.H.S of page.
3. Now click on 'Scroll' icon seen at bottom R.H.S of page and observe the scroll bar.

Actual: Scroll bar disappears after clicking on 'Scroll' icon or simply scrolling via mouse wheel.

Expected: Scroll bar should not disappear after clicking on 'Scroll' icon or simply scrolling via mouse wheel.

This is a regression issue broken in M-52, below is other info.

Good build: 52.0.2714.0
Bad build: 52.0.2715.0

ChangeLog URL:
https://chromium.googlesource.com/chromium/src/+log/52.0.2714.0..52.0.2715.0?pretty=fuller&n=10000

Suspecting: r388875 ?

Please help to re-assign if your change is not the cause for this issue.

Note: 
1. This is Mac 10.11.4 specific issue not seen on Mac 10.10.5, Windows and Linux.
2. Unable to provide Narrow bisect as issue is not reproducible on Chromium build.




 
Actual_scroll.mov
10.6 MB Download
Expected_scroll.mov
8.7 MB Download
Project Member

Comment 1 by sheriffbot@chromium.org, Jun 10 2016

Labels: -M-52 M-53 MovedFrom-52
Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Components: -Blink Blink>Scroll

Comment 3 Deleted

Comment 4 by sunxd@chromium.org, Jun 10 2016

Cc: sunxd@chromium.org
Owner: ccameron@chromium.org
Sorry I commented on the wrong thread. The CL is only doing changes on unit tests, and should not affect the production code.

It is notable that when running this in chromium instead of canary, where there is no video playing, the scrollbar does not disappear. Also this issue only occurs when you plug a mouse to a mac and disconnect the touch pad (so that the scrollbar is always supposed to show up).

Suspecting r388724, since it touches the video decoder and there are changes on mac. I'm assigning this to ccameron@ (I will be travelling and not able to gain access to a mac desktop next week), please feel free to re-assign, thanks!

Comment 5 by sunxd@chromium.org, Jun 10 2016

Also, this probably needs manual bisect, since chromium does not reproduce this bug.
Labels: ReleaseBlock-Stable
Adding RB label as this is a recent regression
Can anyone from Blink>Scroll team take a look into this and update further on this.
Labels: Needs-Feedback
Unable to reproduce the issue on Mac 10.11.5 using latest M-53(53.0.2780.0).Observed that able to see scroll bar after clicking on 'Scroll' icon or simply scrolling via mouse wheel.
Please find attached screencast.

jshanbal@Could you please check the issue on latest canary 53.0.2780.0 and confirm whether issue still persists or not.
618994.mp4
3.2 MB View Download

Comment 9 by ajha@chromium.org, Jul 1 2016

Cc: dtapu...@chromium.org mustaq@chromium.org
Labels: -M-53 -Needs-Feedback M-52
This is Fixed in the latest canary(53.0.2785.0) but issue is still seen on the latest Beta(52.0.2743.60). 

Reverse bisected to find the exact CL that fixed this issue.

Last bad build:   53.0.2769.0
First good build: 53.0.2770.0

Unable to provide the reliable tool result as Chromium invoked all the good builds.

Manual changelog:
==================
https://chromium.googlesource.com/chromium/src/+log/53.0.2769.0..53.0.2770.0?pretty=fuller&n=10000

Cc'ing Devs for scroll bar related changes in the above range for investigation of the CL that fixed this and get the CL merged to M-52.

dtapuska@ for https://codereview.chromium.org/2052663004 & https://codereview.chromium.org/2048023005
mustaq@ for https://codereview.chromium.org/1989623002

M52 Stable is launching very soon! Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix and get it merged ASAP. All changes MUST be merged into the release branch by 5pm on July 8th (in case if you missed today's 5:00 PM PST deadline) to make into the desktop Stable final build cut. Thank you!
Not reproing on 53.0.2785.1 or 52.0.2743.60 for me -- will need to check on another machine
What was the GPU of the machine with this issue?
Labels: -ReleaseBlock-Stable Needs-Feedback
Unable to reproduce the issue on mac 10.11.5 chrome version canary 54.0.2787.0 and 52.0.2743.60

Removing RBS for now since not reproducible on latest builds. Please feel free to add if required

jshanbal@, Could you please respond as per comment #12
jshanbal@, Could you please respond as per comment #12
Labels: -Needs-Feedback
With response to comment #12, please find the attached screenshot of gpu. 
Above issue is reproducible on latest canary version 54.0.2794.0 on Mac 10.11.4.
gpu_screenshot.jpg
1.9 MB View Download
This may be an HD4000 bug, similar to  issue 627666 . We should start an AVSampleBufferDisplayLayer blacklist.
Mergedinto: 627666
Status: Duplicate (was: Assigned)

Sign in to add a comment