higher SIM power use on krillin since rc-proposed 196
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Canonical System Image |
Incomplete
|
High
|
Unassigned |
Bug Description
I'm seeing weird and buggy power behavior on krillin ever since rc-proposed 196 (and thus also in rc 38, the OTA8.5 release candidate). The root cause isn't determined yet, but there's a high probability it's related to the landing for bug 1480877.
This issue only occurs on krillin (not arale), and only when a SIM is installed and enabled.
Before: ~9 mA
http://
After: ~35 mA
http://
Here's the commit log for 196:
http://
Something appears to be waking up the phone and keeping it awake about half the time, causing the power graph to look like a square wave instead of a flat line. I don't see additional forks or crashes in the logs, which suggests a long-running process is responsible.
tags: | added: lt-blocker lt-category-visible |
summary: |
- higher idle power use on krillin since rc-proposed 196 + higher SIM power use on krillin since rc-proposed 196 |
Changed in canonical-devices-system-image: | |
importance: | Critical → High |
milestone: | ww50-2015 → ww02-2016 |
tags: | removed: lt-blocker lt-category-visible |
Changed in canonical-devices-system-image: | |
milestone: | ww02-2016 → backlog |
Changed in canonical-devices-system-image: | |
assignee: | John McAleely (john.mcaleely) → nobody |
I have added an updated patch to #1480877.
The nm bearer plugin was still scanning wifi at every update request. which could be responsible for the wake ups you see.