Something keeping my phone awake

johnnyshinta

Well-known member
Jul 30, 2010
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Anyone have a similar issue? Phone was in airplane mode for a couple hours. Here's the graph

a6f8204e-c657-4b01.jpg


Sent from my Galaxy Nexus using Tapatalk
 
Nothing I know of. There aren't any listed in the battery info that are taking tons of battery life

Sent from my Galaxy Nexus using Tapatalk
 
As noted in a lot threads on a lot of forums, there are some phones that have a problem with the Android OS and the "Keep Awake" time. There seems to be an issue with some phones not truly going to sleep when the power button is used to turn off the screen as opposed to letting the screen turn off automatically when the screen times out. This results in a very high time in the Settings/Battery/Android OS/Keep Awake menu.

In stock form and with every rom that I have installed, my "Keep Awake" time was always about 50-60% of my total battery time. If the phone had been off charger for 8 hours, I'd have 4-6 hours of Andorid OS "Keep Awake" time. This was true even if the phone had been in my pocket unused and seems to be exacerbated by my habit of turning the screen off manually with the power button every single time. I used to never let the screen timeout.

There seems to be two "fixes" according to Franco (of kernel fame). One concerns the camera. Seems the camera is started and then turned off during startup. But in so doing, it leaves a sensor active and this prevents the phone from actually going to sleep. So he recommends starting and using the back button to go back to the home screen. The other is DRM Protected Content. He recommends this be disabled or frozen. A third, that I don't believe I recall seeing him recommend but that I have seen on his thread at XDA (down for blackout right now) is to disable Maps.

I have done all three of those and my Keep Awake time has gone from 40-50% of my total battery time down to a few percentage points. I mean if I don't use my phone it will now show less than a minute of Keep Awake time per hour.

You can also test if you have the Keep Awake bug by setting your Screen Off time to 30 seconds and then not using your Power Button to put the phone asleep. Just let the time out turn off the screen.

Good luck 
 
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What apps would have DRM protected content on the nexus.

Sent from my Galaxy Nexus using Tapatalk
 
Google+ was a pretty big culprit of this at launch. Dunno if it still is. Try disabling that.
 
i was on AOKP 17 and i was not having this issue up until the night before i flashed AOKP 21. badass battery monitor says it is the kernal that is drawing all the power and that the phone has woken it up the most. download badass battery monitor and it will tell you what is keeping it awake. now just to figure out some way to stop it...
 
This app is awesome. Do you have it set up for scaled calculations

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nah, i havent messed around with it that much yet just to see that my kernal is using the majority of my battery...
 
This app is awesome. Do you have it set up for scaled calculations

Sent from my Galaxy Nexus using Tapatalk
 
It looks like the kernal is taking up most of the power overnight.

6c3073de-215d-7d62.jpg


But it looks like maps is waking the phone up a lot. And it wasn't running in the background.

Sent from my Galaxy Nexus using Tapatalk
 
For Stock Users has anyone found any other ways to reduce the Keep Awake Time? I am still getting 40-50% keep awake time. Is the camera still the issue or something else?
 
For Stock Users has anyone found any other ways to reduce the Keep Awake Time? I am still getting 40-50% keep awake time. Is the camera still the issue or something else?

Go to settings and data and see which apps are using data
 
For Stock Users has anyone found any other ways to reduce the Keep Awake Time? I am still getting 40-50% keep awake time. Is the camera still the issue or something else?

I've heard the BT module affects keep awake time. Try toggling it once and see if that helps.
 
I just downloaded the app and found that in the course of 9 hours of predominately sitting in my pocket my phone killed 60% of the battery. During that time my maps application woke the phone up 514 times. I shut off the automatic report my location feature in maps and I'm hoping that makes a difference. Anyone have any experience with this?
 

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