Develop Bugs

Android system - partial wake lock - one solution found

I have my phone running 99.6% of the time in spare parts and it shows android system as the culprit holding a partial wakelock.
so my question is, how do i fix this? i've tried a factory reset three times, am updated to 1.21 ota and have slowly started to reintegrate apps but it always starts again and always after a different app.
i'm getting pretty frustrated anyone got any ideas?
UPDATE In my case it was network time abusing wireless location service that was causing the problem and hence the reason a factory reset didnt solve it, i switched off network time and voila!

just to clarify, no live wallpapers, and phone is in airplane mode to avoid any data usage drainig the battery.
i have got beautiful widgets homescreen small clock and pure cal widget installed at the moment but even when i uninstall them it doesnt fix it, also im running launcher pro 0.4.2 but also had the problem when i reverted to sense.
and i have read every other thread here about battery life that i could find but no-one seems to have this problemo

anyone with any advice on why my phone wont sleep?

A long shot, but go in to Mobile Settings and untick Enable always-on mobile data.

Philosoma said:
A long shot, but go in to Mobile Settings and untick Enable always-on mobile data.
Click to expand...
Click to collapse
ok cool, giving that i try now but i had been leaving it in airplane mode to try and take the vagaries of data out of the equation.
this started about a week ago and i really noticed it when i was in a 6 hour long meeting and my battery basically draines 60% even though the phone was in airplane mode

ok tried that but with my phone just factory reset, airplane mode and no apps installed other than spare parts it's showing running 94.1 % of the time and all of it is android system.
that cant be right
i have restored data, maybe i shouldnt restore data either but that just seems plain crazy

Re: Android system - partial wake lock
What exact foreground and background processes/services do you have running when this is happening, any idea?
Apps like System Panel can show you them and some useful other details. That is certainly too high.
-------------------------------------
- Sent via my HTC Desire -

th3 said:
What exact foreground and background processes/services do you have running when this is happening, any idea?
Apps like System Panel can show you them and some useful other details. That is certainly too high.
-------------------------------------
- Sent via my HTC Desire -
Click to expand...
Click to collapse
ok right now there is
com.android.syncml.service
sense
market
messages
people
rss reader
syncml provider
sys panel
touch input
updater
and then a load of inactive cached applications
do you see anything unusual there?

ok so i downloaded system app and killed all apps except excluded and sytem apps and my running usage has gone down, now thats no suprise in and of itself but now i need to see if it stays down.
i've just checked again and the percentage is still going down, so it's either an inactive app which i didnt list ( is that even possible if its inactive) or one of the items i listed above.
has anyone got any thoughts.

What do the logs say upon going to standby? (Use aLogcat to watch/save system log).

I had same problem I tried the turning off network always on to off, didn't change anything. the thing that worked for me was turning off my flickr account!? For some reason it kept my calendar awake so keeping system from sleeping, don't ask me why as I can't figure it out, though since doing this I'm now getting up to 2 days of average use from the battery. Also I've done the usual of reducing the different accounts sync timings etc.
Have you typed *#*#4636#*#* into the phone key pad to look at what is happening? This can give valuable info on what's draining the battery.

Jazd71 said:
I had same problem I tried the turning off network always on to off, didn't change anything. the thing that worked for me was turning off my flickr account!? For some reason it kept my calendar awake so keeping system from sleeping, don't ask me why as I can't figure it out, though since doing this I'm now getting up to 2 days of average use from the battery. Also I've done the usual of reducing the different accounts sync timings etc.
Have you typed *#*#4636#*#* into the phone key pad to look at what is happening? This can give valuable info on what's draining the battery.
Click to expand...
Click to collapse
I have the same problem as OP since the latest update. The *#*#4636#*#* code is not helping in this case. The partial wake lock is displayed as Android System - which doesn't tell me anything.
I read something about the Calendar issues but I am unable to stop the calendar in running processes.
How did you solve your problem?

ferus said:
I have the same problem as OP since the latest update. The *#*#4636#*#* code is not helping in this case. The partial wake lock is displayed as Android System - which doesn't tell me anything.
I read something about the Calendar issues but I am unable to stop the calendar in running processes.
How did you solve your problem?
Click to expand...
Click to collapse
Ok i seem to have had some luck since last night though i'm not sure of the exact reason.
i did as th3 said and downloaded system monitor and then killed all background active and inactive tasks and that seems to have solved the problem. I have no idea why that would be the case though and i am watching it carefully to see if it stays fixed.
i dont have a flickr account setup

djet said:
What do the logs say upon going to standby? (Use aLogcat to watch/save system log).
Click to expand...
Click to collapse
Djet, I installed alogcat and have found all references to wakelock, rather than post the entire log
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'NetworkLocation Check Location' activated (minState=0)
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'NetworkLocation Check Location' activated (minState=0)
D/PowerManagerService( 77): wakelock: PARTIAL_WAKE_LOCK 'keyguardWakeAndHandOff' activated (minState=0)
D/PowerManagerService( 77): wakelock: FULL_WAKE_LOCK 'keyguard'ACQUIRE_CAUSES_WAKEUP activated (minState=3)
there are also some entries in red like this one
E/vold ( 53): Unable to lookup media '/devices/platform/msm_sdcc.1/mmc_host/mmc0/mmc0:0001'
and a load of errors to do with global search etc but this is all pretty much gobbledegook to me, what am i looking for?
thanks

ok so based on that log i have switched of the use wireless networks to find my location (not gps i hardly ever use that anyway) and now the running % is dropping fast.
i will keep you posted as to whether it keeps coming down or not.
it is going to be an enormous bummer if i cant use wireless location, thats one of a smartphones greatest powers, why would this suddenly start happening now ( started about a week before the ota update) and continues even when i factory reset.

kinkade said:
ok so based on that log i have switched of the use wireless networks to find my location (not gps i hardly ever use that anyway) and now the running % is dropping fast.
i will keep you posted as to whether it keeps coming down or not.
it is going to be an enormous bummer if i cant use wireless location, thats one of a smartphones greatest powers, why would this suddenly start happening now ( started about a week before the ota update) and continues even when i factory reset.
Click to expand...
Click to collapse
I suppose it's not the feature itself guilty but the applications using it. I had the same issue with battery running out because of Location service wake locks. It turned out one of the Locale app plugins was abusing this service. Having it uninstalled battery run became normal.

djet said:
I suppose it's not the feature itself guilty but the applications using it. I had the same issue with battery running out because of Location service wake locks. It turned out one of the Locale app plugins was abusing this service. Having it uninstalled battery run became normal.
Click to expand...
Click to collapse
Yes i know what you mean, how did you go about diagnosing that? also i have done several factory resets and it still happens

Re: Android system - partial wake lock
There are a many app settings that drain battery and the stock setup is nothing I am fond of. Location/locale was one of them for me, calendar, network time and widget/app syncs being the others. A non-stock app causing such problems was NetCounter.
Calendar was fixed by killing it and restarting it. It's a known bug for many.
If many widgets are running sync very often, then you can imagine battery draining fast.
-------------------------------------
- Sent via my HTC Desire -

th3 said:
There are a many app settings that drain battery and the stock setup is nothing I am fond of. Location/locale was one of them for me, calendar, network time and widget/app syncs being the others. A non-stock app causing such problems was NetCounter.
Calendar was fixed by killing it and restarting it. It's a known bug for many.
If many widgets are running sync very often, then you can imagine battery draining fast.
-------------------------------------
- Sent via my HTC Desire -
Click to expand...
Click to collapse
th3 you are legend, it was network time, i switched that off and all is now well in the world. cheers dude

Good find. I had the thing off anyway, but it is good to know.

[Q] Battery Drain in Airplane Mode, and even otherwise - Andromadus Mimicry

Hey all,
I have a rooted Desire Z, that's almost 2 years old. I had been using the Virtuous Sense ROM for the most part and had been quite happy with it. Recently, I figured it was time I switched to ICS. So I flashed the Andromadus Mimicry ROM and have been loving it ever since. My only gripe with it is the battery life. I have been meaning to test it out extensively before I could bother the DEV with my nooby queries, but haven't had the time to do so.
When I check Settings > Battery, the screen always seems to be using up most of the %. I have searched through the forums and have done the following, in addition to a few steps that I could think on my own -
Re-calibrated Battery Stats
Clear cache & devklik cache fortnightly
Brightness - Set to 20% (No Auto)
Set to dim after 30 seconds
No render effects (ROM specific I think)
Animations are On.
No Bloatware Installed (Facebook, Twitter, Chrome, etc)
Sync is Auto (I need this)
Froze Google Maps and few other unnecessary background apps that I rarely use with Titanium (using Watchdog to monitor what was eating up CPU)
Disabled Google Backup
Wifi is always Off (I have to depend on 3G for my connectivity needs)
No Battery Saving Apps or Auto Kill Task Managers installed.
News & Facebook widgets set to manual update.
V6 SuperCharger with stock Services.jar.
CPU clock runs @ 245 Mhz on idle, which is most of the time.
GPS is always Off
Google's Location Service (Wifi & mobile network) is On.
Coming to the point, last night the phone was fully charged to 100%. I decided to turn Airplane mode On before I went to sleep to figure the drain in the absence of networks. Woke up to find 78%. That's 2.2% per hour. I checked Better Battery Stats and it seems the phone was awake for the whole ~10 hours. The culprit seems to be GPSLocationProvider. Note that the GPS is Off ; so this has to be the Google's Location Service (Wifi & mobile network)? Disabling this would be inconvenient because it's needed for Weather, and a few other things.
I'm attaching the screens, because I'm pretty new to this and would like to see what people who know more than me have to say about this. A drain of 22% in Airplane mode isn't normal and is crazy, right? Or perhaps,it's time to get a new battery?
PS: The battery has drained a further 20% since the time I took the screenshots, while I was typing this. I merely used the phone for a few messages and to check my mail. (see second-to-last vs last screen)
Radio - 12.56.60.25_26.10.04.03. Signal Strength is usually ~ -89dBm. I have noticed people claiming that the .19 radio is quite battery-friendly but I live in India, so I had to go with the WWE radio that seemed the latest. I didn't think it'd work here. Perhaps I'm wrong?
Any insights offered would be greatly appreciated.

It's an app calling the location services api. Try disabling Facebook and/or whatsapp and see if that helps. I'm unfamiliar with either of those apps, but I've heard nothing but bad things about the Facebook app, so that would be the first one I'd remove to see if it helps.
This goes without saying but of course make sure you've done a full wipe of /data since coming from your old rom. Hope that helps. I'm currently sitting at 12 days since my vision has been unplugged in airplane mode (radio off, wifi off, etc).
Sent from my SAMSUNG-SGH-I747 using xda premium

GPSLocationProvider - Reboot to Fix.
Thanks for your input, blk_jack. I did do a full wipe before migrating. As suggested in your ROM's OP, I don't use the Facebook app. The Facebook entry seen in the screenshot belongs to the Facebook Messenger app, which might partly be the cause. Upon further searching, I found that many people have been complaining about this issue on many different flavors of ROMs (ICS / JB) and hardware (HTC, Samsung, LG). Let me elaborate.
Searching for 'GPSLocationProvider' brings a ton of threads about this issue. I will post here whatever I could gather from these posts, for the benefit of others who face this.
Some people get this wakelock if they use GPS for anything and then turn it off. For example, if you turn on GPS, use a map application for a short while, close the map application and turn off GPS, the wakelock is born. Even if you kill any active map services, it will still be there and ends up draining your battery.
It seems to be chiefly caused by apps that use Location such as Google Maps, Facebook, Facebook Messenger, etc. Turning off all location services is advisable.
In some cases, the GPS does not turn back on until the phone is rebooted but that is not the case in this ROM. GPS works when turned On.
To get rid of the wakelock caused by GPSLocationProvider, rebooting seems to be the only working option as of now.
There is a step-by-step instruction guide (written by Karpfenhai) in the [APP]BetterBatteryStats thread OP, that deals with configuring autostarts, which apparently fixes this issue. I'm yet to try it, so I can't comment if it works or not.
I wish I'd been smarter and searched for 'GPSLocationProvider' instead, before creating this thread. Thanks for your time, anyway.

Screen Off Widget/Shortcut on Desktop?
@blk_jack
If I may use this opportunity to ask you something else related to your ROM.. I just found out that I don't have 10 posts yet, so I can't post it in the ROM thread.
Is it possible to create a widget/shortcut on the desktop to turn off the screen, perhaps by using the Launcher Activity options? I am currently using the one that's there in the Notification Drawer (Power Widget), pulling it down each time to turn the screen off is a tad inconvenient. The desktop Power Widget doesn't seem to have the Screen Off option. Is this possible at all without having to use an external app?

Yep, I have a nova launcher gesture set to run the root app killscreen.apk (search google).
You could add that app to your home screen too.
Sent from my SAMSUNG-SGH-I747 using xda premium

[Q] Google Play Services draining battery

This is draining my battery. Kept phone awake for almost 100% on time. Anyone else noticing this? Not changed anything. Only thing that has changed is I now have Google Glass, but I dont have them with me today, so it wouldnt be using that.

droidkevlar said:
This is draining my battery. Kept phone awake for almost 100% on time. Anyone else noticing this? Not changed anything. Only thing that has changed is I now have Google Glass, but I dont have them with me today, so it wouldnt be using that.
Click to expand...
Click to collapse
I was having a similar problem with Play Services and Media Services. I installed App Cache Cleaner and set it to auto wipe every hour or so. That fixed the problem (or at least stopped it from draining the battery).
Hope that helps.

Techngro said:
I was having a similar problem with Play Services and Media Services. I installed App Cache Cleaner and set it to auto wipe every hour or so. That fixed the problem (or at least stopped it from draining the battery).
Hope that helps.
Click to expand...
Click to collapse
I have disabled use wireless networks in Location Services and all has gone back to normal. Maybe give that a shot and see if that fixes it for you.

Researched this a lot, found some solutions, bad and good fixes and after trying some different twists on it after two days this is what I found to be the best, and I decided since this is just as bad as 4.0/4.1 and the mediaserver battery drain I might as well try and help at least 1 person by mass posting this reply I wrote else where to other threads, so here you go:
"Hey- I don't know if you, or anyone else has found a working solution, but here is the way I found best:
Note- I am on galaxy s4 [sgh-i337] running a 4.4 KitKat rom. I have found the following work around to work best for me:
1 Google now & Hotword detection=OFF,
2 GPS = OFF and turned on only when needed, eg maps/checkin on facebook/whatever needs location.
3 Settings-> Manage Apps -> Google Play Services -> Manage Space -> Clear All Data.
**Optional:After this [root only] I go into KT tweaker and make sure my phone cpu is set to a max of 810 Mhz when screen off.**
This fix usually works until I reset the phone. I ALWAYS follow those 3 steps when rebooting. AND always check that after I've used GPS that Google Play Services isn't keeping my phone awake. [Eg, after 30 minutes I check if the phone ever went to sleep again when the screen was off.] IF it does act up, I repeat steps 1, 2 &3. I still get notifications and all, and this is the least feature disabling way I've found that works with the cost of a little micro-management of your phone.
With this fix I can idle for an estimated 5-6days. As I take off my phone from charge at 8am and at noon with minimal usage [maybe 4 or 5 texts] I am at 97%. With WiFi on & connected.
OTHER: I personally keep NFC&Android beam&Bluetooth OFF, and turn ON when I need it on. Other- WiFi is always ON, and "Scanning Always Available" & "WiFi Optimization" is checked ON for me. And for location mode when I do have it on, I keep it at EDIT: Device only. Using only gps to find my location.
All in all, I hope this gets fixed."
I can post screen shots and all if somebody wants them or if there is need for one
-icy

Lg G3 Massive Battery Drain from bam_dmux_wakelock (Pics Included)

Alright everyone,
Some details about my phone before we begin-
I am a moderate user. I play some games, check emails, text and that's about it.
My phone is NOT rooted and obviously I am not running a custom rom, or a alternate launcher, and I haven't really modified many if at all any settings.
So, that being said I am experience some sever kernel wake lock issues form bam_dmux_wakelock for the past week or so. As you see in my picture, 6 out of my 7 hours of up time (off charger) has been kept from deep sleep, therefore destroying my battery time.
Today I have maybe 30-40 minutes total of screen on time, but not nearly the 6 hours of non deep sleep time.
I've turned off "okay google" detection, disabled wifi when screen is off, restricted background data for youtube, disabled google + (I don't use social media) and my brightness is on auto mode, typically around 35% when the screen is on.
If google can see this I would like to offer them a huge F you for changing the permission architecture so that gplay apps cant detected whats causing the wake-lock without root. They are pretty much forcing us to root our phones to access features locked meanwhile continuing to call android "Open Source"
Can anyone give me a recommendation on what are my options? Or should I really just root my phone, which I don't want to do (I have in the past but I haven't needed too with the G3 since it has everything I want without root)

I don't think it's Google's fault if LG makes a sucks kernel. Anyway, bam_dmux seems to be related to radios. Could it be that during those wake locks you were in an area where there is weak signal? Are you still experiencing this error after a reboot of the phone?

keithleyson said:
I don't think it's Google's fault if LG makes a sucks kernel. Anyway, bam_dmux seems to be related to radios. Could it be that during those wake locks you were in an area where there is weak signal? Are you still experiencing this error after a reboot of the phone?
Click to expand...
Click to collapse
I've reset the phone multiple times, and have also cleared the cache from the bootloader as well. I don't have a weak signal in my area; also the radio interface is a separate wake lock code from bam_dmux. From what I read bam_dmux has to do with google background services.

Bump

JetForceF22 said:
I've reset the phone multiple times, and have also cleared the cache from the bootloader as well. I don't have a weak signal in my area; also the radio interface is a separate wake lock code from bam_dmux. From what I read bam_dmux has to do with google background services.
Click to expand...
Click to collapse
Google location service may be running in the background to much too long.

gee2012 said:
Google location service may be running in the background to much too long.
Click to expand...
Click to collapse
I don't see a google location service only the Verizon Location Agent; there are two other services called "LocationServices" under All in my application manager, and they are both listed at being 0.00 bytes in size (?) I force stopped those anyways along with the verizon location agent which restarted anyways. I also have location completely off in my quick menu from the pull down bar, I only turn it on when I'm using GPS.

Android OS wakelock

Hello everybody.
I have recently rooted my phone to try and identify the cause to my fast battery drain, which is primarily from the Android OS process.
I can't seem to find it. I see that the process "system" is working a lot and that the Android OS is awake for way to long.
Maybe you guys can point out something I'm missing here.
I would appreciate every help from you !
Thx

raied115 said:
Hello everybody.
I have recently rooted my phone to try and identify the cause to my fast battery drain, which is primarily from the Android OS process.
I can't seem to find it. I see that the process "system" is working a lot and that the Android OS is awake for way to long.
Maybe you guys can point out something I'm missing here.
I would appreciate every help from you !
Thx
Click to expand...
Click to collapse
This really could be anything. I recently had this and experimented for days whenever I took a break. For me, it turns out that it was my work's wifi hotspot making my phone stay awake to stay connected. I turned off wifi and it was fixed. But this isn't a solution. I ended up connecting to my own wireless repeater and problem was gone.
Bottom line is you'll have to figure out what's going on yourself.

htr5 said:
This really could be anything. I recently had this and experimented for days whenever I took a break. For me, it turns out that it was my work's wifi hotspot making my phone stay awake to stay connected. I turned off wifi and it was fixed. But this isn't a solution. I ended up connecting to my own wireless repeater and problem was gone.
Bottom line is you'll have to figure out what's going on yourself.
Click to expand...
Click to collapse
Thank you for your reply.
I couldn't find any cause to the problem, that's why I thought that maybe another pair of eyes (or more ) might help...

raied115 said:
Thank you for your reply.
I couldn't find any cause to the problem, that's why I thought that maybe another pair of eyes (or more ) might help...
Click to expand...
Click to collapse
I'll tell you what I've done for battery life on my phone and maybe on of those will fix your problem.
1. Uninstall stock bloat (only the stuff actually running in the background; no need to remove stock launcher ect.)
2. Disable Wi-Fi scanning when wifi off
3. Use Amplify to limit wakelocks and alarms
4. Freeze the apps you don't regularly use. I have a titanium backup widget on my homescreen that will unfreeze snapchat and launch it. It is the pressed again to freeze it after use.
5. Greenify apps you don't want running in the background for no good reason. If you get the donate version, you can still get GCM notifications so it's win win. For apps that don't have GCM notifications, it will coalesce the notifications so your phone doesn't wake up as often.
6. Make sure you have all logging turned off from the LG hidden menu.
7. If you're on a bad wi-fi network run by work/school, then get the auto disable IPv6 app on the play store.
8. Use the HEBF Optimzer app to prevent Google wakelocks and battery drains.
9. Use PNF Root app on the play store to custom choose how often your phone checks for GCM notifications.
With these changes, I finish the day with around 4 hours of screen on time doing regular things. Don't believe the posts about 7-8 hours SOT because you don't know what they were doing. I once used my phone as a timer while studying and had the screen on for 3 hours and only drained 12% battery.

absolutely the same issue here. No luck with factory reset, not using whatsapp or messenger, not using wifi, not using mobile data, no luck with any kind of debloating, uninstalling, installing greenify, amplify whatever. In the end, the Android OS will come back and drain the battery. I've spent a way too much time on this issue.

kakaovnik said:
absolutely the same issue here. No luck with factory reset, not using whatsapp or messenger, not using wifi, not using mobile data, no luck with any kind of debloating, uninstalling, installing greenify, amplify whatever. In the end, the Android OS will come back and drain the battery. I've spent a way too much time on this issue.
Click to expand...
Click to collapse
Try clearing the Google Play Services data, then removing all Google accounts and then adding them back. This time, make sure not to agree to any data collection.
When you turn GPS on, it should show as GPS only in the location settings. Disagree to any prompts.
If your location defaults to high energy GPS and networks, then try flicking the toggle on and off very quickly after you have cleared the play services data. This is how I got the prompt for data collection to come back. It's annoying and you have to always disagree but it fixed my mysterious battery drains from android os.