Develop Bugs

[Q] Battery drain, wakelocks and modem/wlan

I know there are a million battery threads, but I can't find the answer to this one. I'm one of the people who gets fairly significant battery drain no matter what rom/kernel I use. I noticed in the last month or so with Better Battery Stats that there are a series of processes in the kernel that causes wakelocks. I've tried to look this up on google and several forums, but cannot figure out why they occur sometimes and not other times. They are:
modem_usb_gpio_wake
modem_usb_suspend_block
wlan_rx_wake
musb_autosuspend_wake_lock
wlan_wake
It seems that when these processes run, my battery drains much more quickly than when they don't. If I reboot the phone, they'll go away for a while (hours to days) and then come back.
Any ideas?

Did you try changing the baseband?

arzbhatia said:
Did you try changing the baseband?
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Yes. I changed to the newest release when 4.0.4 was leaked.
There is one post in Sven's github knowledge base about this. It suggests using a "sniffer" to figure out what is causing the wlan_wake.
wlan_wake
Speaking Name: wlan_wake
Rationale: wifi chip woke the CPU (Usually this fires and leads to a wlan_rx wakelock).
Know actions: Use a sniffer to determine the cause of the traffic.
Known conditions of occurence:
Related wakelocks: wlan_rx References:
Last edited by asksven, 4 months ago

all Wakelocks
Hi,
i have a galaxy note GT N7000 runing PA 3.99. Since a few days, my battery started to rain really fast ( i haven't done anything to my settings nor installed anything new), i let BBS get some statistic that i will post here. Hope you could help me. As i can see i have most of the wakelocks from first posts...
During night
During next day
A little of next night and day
I can also post screenshots of bbs if necessary.
Best regards,

the modem_usb ones only occur on toro and toroplus roms I believe

I usually do a test - complete wipe and install rom with literally no apps for a full charge to see how it does. Ive had so many battery problems but i have always been able to nail down an app/or many apps that caused the issue. i tried all the battery apps, looked at my wakelocks, etc but i dont think they really helped me much.

Major battery drain from kernel wakelock

Hi,
I'm getting a major battery drain from a kernel Wakelock, and I cannot figure out how to fix it. I've tried reinstalling the ROM, to no avail. Using Eclipse.
Screenshot from BBS attached.
Sent from my Galaxy Nexus using XDA

I have the exact same 7 causing all kinds wakelocks over the last week. I've tried everything to try and figure out what the hell is causing it to no avail. If you figure it out, please let me know! I'm begining to think it was an update to an app that started causing this to happen (even though no apps are shown)

try disabling autosync and see if it works,non gsm version?

Nothing set to sync

Power manager service is a combination of all wakelocks in userland, meaning it combines all wakelocks caused by you (music, phone calls...etc), the others (minus alarm rtc which I'm not sure of) are all related to having the phone USB mounted which I'm assuming you have.

my gnex dosnt get deep sleep, someone know fix it?

zerocool79346 said:
Power manager service is a combination of all wakelocks in userland, meaning it combines all wakelocks caused by you (music, phone calls...etc), the others (minus alarm rtc which I'm not sure of) are all related to having the phone USB mounted which I'm assuming you have.
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Nope, not USB mounting at all for me.
Sent from my Galaxy Nexus using XDA

i have deep sleep in CPU Spy but in betterbatterystats no

zerocool79346 said:
Power manager service is a combination of all wakelocks in userland, meaning it combines all wakelocks caused by you (music, phone calls...etc), the others (minus alarm rtc which I'm not sure of) are all related to having the phone USB mounted which I'm assuming you have.
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Click to collapse
I don't know what USB mount means, but why would there be a wakelock for usb when the phone is not connected to a usb cord?
Also, I've tried turning off sync, and the phone still has severe drain. It randomly fluctuates between losing less than 1%/hr to 6%/hr+, even when the phone is idle and sitting in the same place. I've noticed that there are quite a few times when the phone is awake, even though my screen is off and I'm not using it.
If this is an app causing the problem, how do I diagnose the issue? Shouldn't it be showing up in "battery" under settings or as a specific wakelock in Better Battery Stats. I used to easily get 2 hrs of screen time on CDMA LTE, but now I'm lucky if I can get 80 minutes.
I thought it might be the battery itself, so I went out and bought a new one. That was a waste - same issue.
Any insights?

Still can't figure this out. Anyone?

Change kernels.
Sent from my Galaxy Nexus using Tapatalk 2

Already did that. Didn't make a difference. There must be a reason this is happening.
Sent from my Galaxy Nexus using XDA

Stockmoose16 said:
Already did that. Didn't make a difference. There must be a reason this is happening.
Sent from my Galaxy Nexus using XDA
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I think I finally fixed my issue. I don't know exactly what it was but it had something to due with the following: Open Latitude and sign out (apparently I was logged back in after the last maps update), kill facebook everytime I close it (keeps way too many services open even though I don't have it to sync), enabled and disabled sync, bt, gps, 4g, uninstalled voodoo mods, re-disabled maps from autostarting, made sure I was logged out of talk, and also logged out of google +, some combination of the above fixed it for me.
I'm willing to bet it was a combination of maps, talk, latitude, and facebook since I tried most of the other things prior to the above. I updated maps and facebook the same day so it could be either of those.

None of those are the issue for me. I completely switched out my ROM and went down to a barebones number of apps. Still having a major issue with the exact same kernel wakelocks. I literally did not touch my phone overnight, and it still lost quite a bit of battery.
How come nobody seems to know what the wakelocks mean from my screenshot posting? This is impossible to diagnose.
Sent from my Galaxy Nexus using XDA

having the same issue. My battery life would be nearly ideal without this wakelock and the "modem_usb_gpio_wake" problem using up the battery. Using AOKP build 35 with lean kernel

Is this not the correct forum to post in? This question has been asked numerous times with the Galaxy Nexus, but nobody had given a solution.
My phone drain is terrible with these kernel wakelocks, but nothing fixes it. I've tried numerous other kernels with the same result. I've killed all my apps. I'm stumped.
What could possibly be causing this out of the blue?
Sent from my Galaxy Nexus using XDA

Stockmoose16 said:
Is this not the correct forum to post in? This question has been asked numerous times with the Galaxy Nexus, but nobody had given a solution.
My phone drain is terrible with these kernel wakelocks, but nothing fixes it. I've tried numerous other kernels with the same result. I've killed all my apps. I'm stumped.
What could possibly be causing this out of the blue?
Sent from my Galaxy Nexus using XDA
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Click to collapse
Your best bet is to post a dump of your BBS results in the BBS thread, Chamonix and others in that thread know their stuff.

What program do I use to make a dump file?
Sent from my Galaxy Nexus using XDA

Stockmoose16 said:
What program do I use to make a dump file?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
BBS. Menu>More>Dump to File.

CMNein said:
Your best bet is to post a dump of your BBS results in the BBS thread, Chamonix and others in that thread know their stuff.
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I'm pretty sure if people just searched how to do it, they would find betterbattery stats thread here in xda. Still, thanks man.
Sent from my i9250

Kernel wakelock mdm_hsic_pm0?

I am seeing a lot of kernel wakelocks from this in BBS, but can't find anything about it online. Does anyone know what it is?

First time I see it today, so I searched and I see you have the same problem.
Today is the first day I've been on 3G (no LTE in my area) all day, with WiFi disconnected, and BetterBatteryStats shows FastDormancy and mdm_hsic_pm0
Causally related? I am fairly sure FastDormancy is causally related to the 3g stuff, but not sure about mdm_hsic_pm0 - it's possible?
I'm on the i317M, though, so maybe that could help us troubleshoot.

Yes, I have indeed seen other reports of mdm and FastDormancy occurring simultaneously, but I don't have FastDormancy at all.
I have been unable to find any info on mdm since this post. There are a couple threads like this on other forums, so far none with answers though. It appears it is occurring with the GS3, as well.
If anyone else has any info, it would be much appreciated....

intelli78 said:
I am seeing a lot of kernel wakelocks from this in BBS, but can't find anything about it online. Does anyone know what it is?
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I am getting the same thing which is driving me nuts. I loose more battery overnight while sleeping then during the day when I sporadically use my device due to this.

Anyone?

i'm having this wakelock as well. can't find any information on it...anyone else?

People are saying in another thread that it's the "l2 hsic" for jellybean and it has to do with charging. One possible solution is to wake phone and go to home screen before unplugging charger. Also pulling battery for a couple minutes may help.
Sent from my SPH-L900

s4pat said:
People are saying in another thread that it's the "l2 hsic" for jellybean and it has to do with charging. One possible solution is to wake phone and go to home screen before unplugging charger. Also pulling battery for a couple minutes may help.
Sent from my SPH-L900
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Thanks for the info. Can you link to that thread?

intelli78 said:
Thanks for the info. Can you link to that thread?
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http://forum.xda-developers.com/showthread.php?t=1957906
i still have this wakelock and cant figure out what is causing it...

I Disabled Fast Dormancy and that wake lock disappeared.
I'm not sure if we can get rid of the mdm_hsic_pm0 one.
Yossarian33 said:
First time I see it today, so I searched and I see you have the same problem.
Today is the first day I've been on 3G (no LTE in my area) all day, with WiFi disconnected, and BetterBatteryStats shows FastDormancy and mdm_hsic_pm0
Causally related? I am fairly sure FastDormancy is causally related to the 3g stuff, but not sure about mdm_hsic_pm0 - it's possible?
I'm on the i317M, though, so maybe that could help us troubleshoot.
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Bump, any updates on this?

Double Bump!

Like a camel!
sent from my ginormous Note II

Finally, humanity is defeated by software bug

Just a hunch, this might have something to do with location or GPS. My wakelock with this doubled with GPS on for the day. While I had roughly the same amount of wakelocks from the Google maps location updaters.
sent from my ginormous Note II

any update on this? Recently happend to me and i went from 38 hours battery life to 18. Now granted yes thats still good. Nonetheless i want this to stop.

I am getting this same wakelock and it's seriously getting on my nerves. My phone rarely ever gets to enter deep sleep because of this. Is this related to certain ROMs or is it effecting all note IIs?
Sent from my SPH-L900 using xda app-developers app

Hey guys I'm from the Verizon Note 2. I actually made a search on Google this morning and it led me hear. I recently noticed a decrease in my battery life and seem to have the same problem as you guys, mine only caused about 35mins of wake time yesterday but if we could remove it the better for all of us.
There's also stuff I'm not really aware of if I can freeze or trash it all together. I'm new to this battery stats app. I added other pictures of possible stuff killing my battery, it seemed ebay mobile was a contender as well so i trashed it lol. I'm also on a custom ROM.
Sent from my SCH-I605 using xda premium

Probably the single.best thing you can do for your battery is to get. Google maps to stop reporting your location all day.
Go into the settings of Maps and disable reporting, unless you need it for something of course.
sent from my ginormous Note II

MeetFace said:
Probably the single.best thing you can do for your battery is to get. Google maps to stop reporting your location all day.
Go into the settings of Maps and disable reporting, unless you need it for something of course.
sent from my ginormous Note II
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Which as far as I can tell has nothing to do with this specific wakelock, which sometimes causes my phone to never go into deep sleep.
Yes, maps is obnoxious and causes plenty of its own wakelocks, but if mdm_hsic_pm0 is keeping my phone awake 100% of the time it's pretty irrelevant.

qcom_rx_wakelock when connected to authentication required wifi

Hi guys,
i have a serious wakelock issue.
When my Nexus 5X Build MMB29Q is connected to a wifi network which required authentication (for example room no and last name when in a hotel) it suffers very high battery drain.
qcom_rx_wakelock is keeping my device awake.
As soon as i turn of wifi, the wakelock no longer occur.
When it turn it back on qcom_rx_wakelock continues to keep my device awake.
After some googleing i still don't know what qcom_rx_wakelock does.
Can anyone of you give me any information?
Since BBS says it's a kernel wakelock i already tried a different kernel but it's the same with franco.kernel and ElementalX.
Does anyone of you know or have any idea how i could fix that issue?
I also have Amplify installed.
Is there a way to block the qcom_rx_wakelock with Amplify?
Unfortunately i couldn't find it in Amplify
Thanks for your help!

leAndroid91 said:
Hi guys,
i have a serious wakelock issue.
When my Nexus 5X Build MMB29Q is connected to a wifi network which required authentication (for example room no and last name when in a hotel) it suffers very high battery drain.
qcom_rx_wakelock is keeping my device awake.
As soon as i turn of wifi, the wakelock no longer occur.
When it turn it back on qcom_rx_wakelock continues to keep my device awake.
After some googleing i still don't know what qcom_rx_wakelock does.
Can anyone of you give me any information?
Since BBS says it's a kernel wakelock i already tried a different kernel but it's the same with franco.kernel and ElementalX.
Does anyone of you know or have any idea how i could fix that issue?
I also have Amplify installed.
Is there a way to block the qcom_rx_wakelock with Amplify?
Unfortunately i couldn't find it in Amplify
Thanks for your help!
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Click to collapse
Same here with Moto G 2nd Gen. Did you find a cure for this?

Sigh... Battery drain and probably wakelock issues

Hi,
I have an unrooted Note 4 that is updated to the latest marshmallow. Lately I have been having battery drain issues. I have GSam Battery Monitor to see if I could figure out what was going on. The only thing that it is telling me is that my phone is pretty much staying awake all the time. Unfortunately I cannot tell much more than that.
My question - is there any way at all for me to figure out the culprit? I looked online for a while and saw references to using Wakelock Detector on unrooted phones with a couple of ADB commands, but that doesn't seem to be an option with Marshmallow.
So, short of rooting, is there any way for me to figure out my battery issues and what's keeping it awake?

Ha! I'll answer my own question. It turns out that you can do this with GSam Battery monitor and a few ADB commands. I updated the app to the latest and went through the settings and it had a little tutorial built in. It took me just a couple of minutes and now I can view wakelocks, both app and kernel, in the app.
If only I could do this with wakelock detector. Still, I'm happy with GSam Battery Monitor.
I'm assuming that I'll have to redo this after every reboot, but that's cool

usmaak said:
Ha! I'll answer my own question. It turns out that you can do this with GSam Battery monitor and a few ADB commands. I updated the app to the latest and went through the settings and it had a little tutorial built in. It took me just a couple of minutes and now I can view wakelocks, both app and kernel, in the app.
If only I could do this with wakelock detector. Still, I'm happy with GSam Battery Monitor.
I'm assuming that I'll have to redo this after every reboot, but that's cool
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did you calibrate your battery since your last update? is that when issue began ?im not on stock, but ive had major battery issues in the past. the issue was caused from flash . the solution ended up being charging phone to full then calibrating battery via an app i used root essentials but not applicable in your case