Calendar alarms rings forever if Low Battery dialog visible

[Bill Filler]

I'm on rtm build 258 on krillin

Steps to reproduce:
- let battery run down on phone (was sitting unplugged for 1 or 2 days)
- in the morning, a calendar alarm starting ringing/vibrating and would not stop
- when I looked at the phone, the screen was on and I see the Low Battery dialog
- after dismissing the dialog, then I see the notification for the alarm, and only after 5-10 more seconds does the ringing stop

Seems like while the Low Battery dialog is displayed it keeps the alarm ringing forever

[Oliver Grawert (ogra)]

it seems to actually be usensord's fault and is easy to reproduce, i think the low battery dialog is just a coincidence here ...

to repro:

echo 10000 >/sys/devices/virtual/timed_output/vibrator/enable (as root in the terminal app) then suspend and the buzzing wont stop

usensord needs to hold a wakelock while theres an active vibration timer ...

[Jussi Lind (jussi-lind)]

This same thing happened to me but with alarm clock:

https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1438036

(See comment #6)

[Ricardo Mendoza (ricmm)]

From the description this seems like a different case of the vibration. Does it keep *ringing* literally, or just vibrating? Is it with the screen off? or on.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.