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Issue 825285 link

Starred by 2 users

Issue metadata

Status: ExternalDependency
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Android
Pri: 3
Type: Bug



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[Stable Play] Phone screen brightness turns dimmer when user open Chrome app

Project Member Reported by hongchic...@chromium.org, Mar 23 2018

Issue description

Chrome Version: 65.0.3325.109
OS: Android

What steps will reproduce the problem?
We start seeing user feedback and users are mostly on Huawai devices: Honor 7X, P10, HUWEI MediaPad T3, Honor 8Pro

http://feedback/#/Report/85156430421
http://feedback/#/Report/85164325930
http://feedback/#/Report/85217238446
http://feedback/#/Report/85186146583

What is the expected result?

What happens instead?

Please use labels and text to provide additional information.


For graphics-related bugs, please copy/paste the contents of the about:gpu
page at the end of this report.

 
Labels: TE-NeedsTriageFromMTV
Tested on reported Chrome #65.0.3325.109, 64.0.3282.137 and latest Canary #67.0.3381.0 using Honor 5X Android 6.0.1 Build/HONORKIW-L22 and was not able to reproduce the issue. Requesting MTV team to verify on the reported devices.

Thanks!
Cc: pnangunoori@chromium.org
Labels: Needs-triage-Mobile Triaged-Mobile
Also, verified on Samsung J7, Pixel, Pixel 2 XL, Nexus 6P devices on reported Chrome #65.0.3325.109, 64.0.3282.137 and latest Canary #67.0.3381.0. But, the issue is not observed.
Cc: mlamouri@chromium.org
Components: UI>Browser>Mobile
Looks like we'll need to test on Huawai devices to see if we can repro.

mlamouri@, are you aware of any media related stuff around dimming?  I know that we prevent dimming when showing a video, but I don't know of anything that would cause the screen to dim instead of get brighter.
Cc: ram...@chromium.org

Comment 5 by ram...@chromium.org, Mar 28 2018

Chrome versions tested: 65.0.3325.109 & 66.0.3359.46
Devices: 
Huawei P9 Lite (VNS-L31 / M), P10 (VTR-L29 / N), P8 Lite (ALE-L23 / 5.0.1)

Pre-Condition: Set system display time out to 1 minute.

1. Start Chrome.
Display sets off at 1 minute and dims

2. Exit Chrome.
Display sets off at 1 minute and dims.

Results:
No issue with Chrome causing screen to dim.
Comment 3: Video preventing screen to dim (correct behavior)


tedchoc@, video playback should do a screen wake lock on Android, which technically prevents dimming.

Though, looking at the comments, it seems that the issue happens when opening the app. Users seem to see a brightness reduction. Is it possible that the system adjusts the brightness based on the UI colour and the predominance of white?
Labels: -TE-NeedsTriageFromMTV triage-te
Owner: tedc...@chromium.org
Status: Assigned (was: Untriaged)
Status: ExternalDependency (was: Assigned)
Filed an internal bug and hopefully will get feedback from Huawei:
https://b.corp.google.com/issues/79163713

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