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Issue 774223 link

Starred by 18 users

Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 3
Type: Feature

Blocking:
issue 764063



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Feature Request : Power-management UI should include control for auto-brightness

Project Member Reported by tbroch@chromium.org, Oct 12 2017

Issue description

CrOS devices that have ambient light sensor (ALS) currently control both internal & keyboard (if avail) backlight levels automatically by default.

If user however manually adjusts those brightness level the ALS control is disabled until the next boot.

Issue created to discuss how we might allow user more flexibility to control this.

One thought that comes to mind would be to simply pickup android-like UI where user can enable/disable 'adaptive backlight'.  When enabled the slider becomes a scale while when disabled its simply the level.
 

Comment 1 by derat@chromium.org, Oct 13 2017

Cc: abodenha@chromium.org
Components: OS>Kernel>Power
What's the motivation for this? Do you want a way to go back to automated control after manual adjustment, or are you concerned about users not having a way to permanently disable automated control?

Comment 2 by puthik@chromium.org, Oct 16 2017

Cc: puthik@chromium.org
dogfooders want a way to go back to automated control after manual adjustment.

Comment 3 by derat@chromium.org, Oct 17 2017

Cc: jennschen@chromium.org kuscher@chromium.org
(Adding UX.)
I really don't like auto-brightness and would like to have this setting as a way to permanently disable it on my device with an ALS.  

I always have it disabled on my phones and this would bring feature parity with android.

Comment 5 by derat@chromium.org, Oct 25 2017

For what it's worth, auto-brightness essentially doesn't exist on any Chromebooks besides the Pixelbook. The one exception is that we jump from the default to full brightness when we think we're in direct sunlight. Docs at https://chromium.googlesource.com/chromiumos/platform2/+/master/power_manager/docs/screen_brightness.md (which should probably be updated to mention the Pixelbook behavior).
Status: Assigned (was: Untriaged)
Cc: tbuck...@chromium.org
Owner: derat@chromium.org
@derat do you know why we gave Eve different logic from other Chromebooks? I also find it very aggressive at changing the display backlight and wonder if we might just want to use the standard behavior. I'd prefer to find a good default behavior than add settings.

Comment 8 by derat@chromium.org, Nov 13 2017

Owner: tbuck...@chromium.org
tbuckley@: The discussion is at http://b/38208252. Feel free to push back on it if you think it should be changed or disabled.
Pixelbook forum reference: Backlit Keyboard Poorly Illuminated (https://goo.gl/BdtGFM)

And a somewhat related issue here I think: 
 crbug.com/785010  - Backlight on pixel book keyboard pulses in certain light conditions

#CBC-RS/TC-watchlist

Comment 10 by derat@chromium.org, Nov 15 2017

#9: Eve keyboard auto brightness issues are tracked at http://b/65365452.
#10: okay, must be hidden/internal. 

Good to know they're being tracked, appreciate it.

Comment 12 by derat@chromium.org, Mar 20 2018

Blocking: 764063

Comment 13 by derat@chromium.org, Mar 20 2018

 Issue 810475  is requesting the same thing and has more discussion.

Comment 14 by derat@chromium.org, Mar 20 2018

Cc: snanda@chromium.org zalcorn@chromium.org omrilio@chromium.org
 Issue 810475  has been merged into this issue.

Comment 15 by derat@chromium.org, May 11 2018

Cc: steve...@chromium.org
 Issue 841292  has been merged into this issue.

Comment 16 by tywi...@gmail.com, May 11 2018

Would be great if this could be ported to other Chromebooks, not only the pixel 
Labels: Hotlist-ConOps-CrOS
(Bulk Edit) Adding the new conops Chrome OS hotlist to all open issues with the "#CBC-RS/TC-watchlist" tag, our former tracking tag.

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