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Issue 796566 link

Starred by 3 users

Issue metadata

Status: WontFix
Owner:
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 2
Type: Bug



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When tapping power button on a Pixelbook to lock the screen, the device regularly does a full power-off

Reported by mhan...@duosecurity.com, Dec 20 2017

Issue description

UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10176.13.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.24 Safari/537.36
Platform: 10176.13.1 (Official Build) dev-channel eve

Steps to reproduce the problem:
1. Lightly press the power button on a new Pixelbook.  Typically the device locks. 
2. Infrequently, the device will power down.  The screen will do a fade animation as though you had initiated a shutdown normally via the ChromeOS menu.
3. 

What is the expected behavior?
The screen locks.

What went wrong?
Instead of locking the screen, the system will periodically shutdown as if you had held down the power button for an extended length of time.

Did this work before? No 

Chrome version: 64.0.3282.24  Channel: dev
OS Version: 10176.13.1
Flash Version:
 
Components: -UI UI>Shell>LockScreen
Owner: zalcorn@chromium.org
Status: Assigned (was: Unconfirmed)
zalcorn@ please triage
zalcorn@ please triage
Owner: tbuck...@chromium.org
tbuckley@ any thoughts?
Cc: tbuck...@chromium.org
Components: -UI>Shell>LockScreen OS>Kernel>Power
Owner: derat@chromium.org
I believe I've seen this occur myself and only a quick tap of the power button prevents the shutdown. It's almost as though the button is stuck in the pressed state. It's unclear to me whether this is a hardware issue (button is actually stuck) vs software issue (we are somehow missing the button-up signal).

@derat, any thoughts what might be happening here?

Comment 5 by derat@chromium.org, Jan 23 2018

Cc: vpalatin@chromium.org warx@chromium.org
Components: OS>Firmware>EC
Labels: Needs-Feedback
Not without logs. :-)

Please file a feedback report using Alt+Shift+i immediately after rebooting and logging in the next time you see this. powerd logs power button presses and releases (albeit just with one-second granularity), so we can at least see what the EC reported.

Comment 6 by derat@chromium.org, Jan 26 2018

Status: Unconfirmed (was: Assigned)

Comment 7 by derat@chromium.org, Mar 1 2018

Status: WontFix (was: Unconfirmed)
Please comment again if you're able to provide a feedback report or logs after observing the issue; I'll reopen the bug and investigate further.

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