Database Users

suspend_backoff wakelock killing my battery since 4.3

I've had my N4 since the day it was released and the battery has been generally acceptable.....until I upgraded to 4.3 (stock, rooted).
BetterBatteryStats is indicating the suspend_backoff wakelock is rampant. WakelockDetector is showing I'm only getting 20% deep sleep on days I'm only lightly using my phone. On Android's Battery screen "Android OS" is listed as the top culprit, consuming 40% or more of the total battery.
Google/XDA searches indicate suspend_backoff is related to Chrome, but I'm convinced this is somehow a wifi connectivity problem as this wakelock ONLY happens when connected to my work wifi. On the weekends when not working my battery is fine and I don't see suspend_backoff. If I don't connect to my work wifi while at work suspend_backoff does not show up at all and I'm deep sleeping at 80%.
Unfortunately at work I don't have the capability of configuring/swapping wifi hardware/settings, so I'm limited to finding a solution on my end. Hopefully the solution isn't to have to sit on mobile data all day long instead of connecting to my work wifi.
Any suggestions?

hfuizo said:
I've had my N4 since the day it was released and the battery has been generally acceptable.....until I upgraded to 4.3 (stock, rooted).
BetterBatteryStats is indicating the suspend_backoff wakelock is rampant. WakelockDetector is showing I'm only getting 20% deep sleep on days I'm only lightly using my phone. On Android's Battery screen "Android OS" is listed as the top culprit, consuming 40% or more of the total battery.
Google/XDA searches indicate suspend_backoff is related to Chrome, but I'm convinced this is somehow a wifi connectivity problem as this wakelock ONLY happens when connected to my work wifi. On the weekends when not working my battery is fine and I don't see suspend_backoff. If I don't connect to my work wifi while at work suspend_backoff does not show up at all and I'm deep sleeping at 80%.
Unfortunately at work I don't have the capability of configuring/swapping wifi hardware/settings, so I'm limited to finding a solution on my end. Hopefully the solution isn't to have to sit on mobile data all day long instead of connecting to my work wifi.
Any suggestions?
Click to expand...
Click to collapse
In Settings, Wifi, Advanced Settings turn Network notification and Scanning always available off and see if it helps. Drainage can also be an issue when the Wifi signal is weak, but it can be Google Now! related among other things, Now! likes to give you fresh cards like traffic, news, nearby things and weather, turning Now! off entirely (voice search still works) could still be help. Also using other apps than Google. I know, hardly a real soluton but I replaced as many as I can.

No, wifi scanning is irrelevant since OP wants to use wifi.
What radio are you on OP? I'm assuming .84?

Yep, .84 radio, Google Now is disabled

Anybody?

rom kernel info? screenshots of the issue?

Back in the Galaxy S II days it was related to Google Chrome with the tilt scrolling. I always disable it though.
Sent from my Nexus 4 using Tapatalk

I am experiencing the same issue starting from yesterday, God knows why. The most common advice is to disable tilt-scrolling in Chrome but as far as I could see the Development Tools option has been removed from teh settings. Any other ideas?

could it be because you're using Touch Control for S2W or D2W?

Your work's wifi may have a combination of 2.4 and 5 GHz signals. I would get this wakelock if I allowed android to choose automatically which band to connect to, but if I forced either 2.4 or 5, the wakelock would let up.

Lookas a kernel bug, which has been fixed in teh latest Franco's release.

Huge battery drain when tablet is "sleeping" - probably because "bluesleep"

Huge battery drain when tablet is "sleeping" - probably because "bluesleep"
Hello,
I have problem on my N7 with large battery drain.
I had this issue witch Stock ROM, now I tried to root stock ROM (4.4.4) and install Greenify, but battery still dies after 2 days of no usage.
I tried to charge it fully, reboot it, cleared cache and dalvik cache, and put it to "sleep". After one night, 40% of battery was gone.
It seems that my N7 is not going to "deep sleep" for some reason.
So I tried to install numerous of apps to find what app is responsible for this. None was successfull, until I tried BBS.
In attachment, you can find BBS dumpfile. But it seems, there is some "bluesleep" kernel wakelock, which is responsible for all my troubles. Unfortunatelly, I dont know what this process is. Or am I reading dumpfile wrong and some other app/process is responsible for this huge battery drain?
I also attached screenshot from standard android battery statictics, which shows, that "Android OS" is preventing tablet from sleep.
Is there some way to fix this issue? Tablet worked normally for 1.5 year, but in last months is unusable, because it has dead battery everytime I want to use it.
Thanks for advices.

I would imagine bluesleep wakelock is related to bluetooth. Do you have BT on and/or connected to anything using BT?
If so try turning it off and see if it persists.

Yes, I use Bluetooth for my Jawbone UP24 sync. But I have this band only for a week. Extreme battery drain already was there before I have got UP24. In these times I had bluetooth turned off all time. So I dont think this is main reason.
I turned off BT. Lets see what happens in the morning.
UPDATE: You were right. It is bluetooth. When I turn it off, tablet is most time in deep sleep.
So probably rooting and installing greenify worked, but in meantime, I started using UP24 and Bluetooth on tablet.
I will try if situation is better with some AOSP based ROM. I did not wanted to flash another rom (than Stock), but I guess, there is no other way. Even clean Android on Nexus device is not usable with comfort...

Unexplainable battery drain

For a month or more I'm facing totally unexplainable battery drain.
As seen on the screens below, the phone is awake, but it is not detected anywhere - not by android nor by GSam. In any case the battery draws faster.
I have one observation tho - this happens after I make phone calls. Not every time, but once per 2,3 days.
Any ideas?

Spo0f said:
For a month or more I'm facing totally unexplainable battery drain.
As seen on the screens below, the phone is awake, but it is not detected anywhere - not by android nor by GSam. In any case the battery draws faster.
I have one observation tho - this happens after I make phone calls. Not every time, but once per 2,3 days.
Any ideas?
Click to expand...
Click to collapse
You have this problem
http://forum.xda-developers.com/note-4/general/explanation-horrible-note-4-battery-t3004274

I'm pretty sure that I don't have this issue. Yes, the percentage in GSam maybe high, but I don't believe this reflects what is happening.
First of all - I don't have bad battery life. Usually my over night drain is less than 1%/1h.
Second - the issue appears sporadically.
Third - in the provided thread I don't see the issue appearing in stock battery monitor, while mine appear.
At last - my battery drains faster only while the issue is present and before I restart. After that it is back to normal ...

@Spo0f
Just some suggestions maybe you're using 3g I always have that turned off and switch it on when I use it my guess is that some apps are causing your drain after a call maybe like you said if you're not fimiliar with greenify I suggest you use it to stop all those apps and system apps also uninstall all those bloatware you don't need or at least freeze them if you don't mind lower the resolution to 1080p with nomone app use power save or disable dvfs and use an app to lower and raise the CPU to save juice when not needed....

Thanks for the suggestions, but as I said - this problem appear sporadically - home when using WiFi as well as outside when using 3G.
All of the rest is done - I'm no newby

Spo0f said:
Thanks for the suggestions, but as I said - this problem appear sporadically - home when using WiFi as well as outside when using 3G.
All of the rest is done - I'm no newby
Click to expand...
Click to collapse
Oh sorry mate well I don't use much 3g so I can't help you there but if you're having drainage when you're using WiFi in general then maybe you should reconsider investigating the post above with the link I don't have so much drainage on connectivity with 3g or WiFi....viewing the pics you uploaded it seems suspicious.... Maybe an app? I don't know...

Use wakelock detector

Spo0f said:
I'm pretty sure that I don't have this issue. Yes, the percentage in GSam maybe high, but I don't believe this reflects what is happening.
First of all - I don't have bad battery life. Usually my over night drain is less than 1%/1h.
Second - the issue appears sporadically.
Third - in the provided thread I don't see the issue appearing in stock battery monitor, while mine appear.
At last - my battery drains faster only while the issue is present and before I restart. After that it is back to normal ...
Click to expand...
Click to collapse
My overnight drain was also very low, but that was because the faulty device on the network was asleep at night too (my desktop).
If you're not rooted, use the PC version of Wakelock Detector at the end of your day and post screenshots of your highest drainers for the various categories. In my case, the device was being woken up by something on the network and it showed.
Bear in mind that actively downloading something in the time period will also raise wifi power used but more stats will help.
The fact that you're still experiencing a lot of drain even when outside suggests it might be a rogue app

One phone call today and after it the phone stayed awake.
Because I had issue with the PC WLD the screen shots are from 11 minutes after one of the disconnects. The device was awake all of them.

Spo0f said:
One phone call today and after it the phone stayed awake.
Because I had issue with the PC WLD the screen shots are from 11 minutes after one of the disconnects. The device was awake all of them.
Click to expand...
Click to collapse
I also checked out my battery behaviour this night and was very disappointed. Although my phone was in flight mode and every peripherals and services shut down, today morning my phone was crying for energy. So I made a quick investigation in my power diagram and found out, that "Android OS" requested a wakelock during the whole power-on time. So I installed "CPU Spy" to check in which states the phone was really over the whole charging period. I couldn't believe my eyes. Although the kernel should do it's job good, cause most of the CPU times are in lower freqeuncy states, the deep sleep mode was never activated.
Therefore I installed an app called "Wakelock Detector" to check out which apps could cause that. I found out, that S Health had a big amount of wakelocks and also active-time, so the first thing was to disable S Health. After some minutes I checked back, but nevertheless still no deep sleep time in "CPU Spy".
So I searched around and found another one arguing about the wakelocks and that they could be the products of some programming issues concerning WiFi. The should be gone, after turning off WiFi and rebooting yout phone. And it seems that he was right. I waited some time and hooray, "CPU Spy" listed the phone state "Deep Sleep" the first time as an active state and also with the major active-time. So at least that was some step ahead. (I have to remark, that S Health was already unfrozen at this time, so S Health should not be responsible in any way.)
The next step was to reactivate WiFi, leave it on and set the phone on standby. After some time I checked back again the phone showed even more deep sleep time. So that was an improvement. I reactivated everything and waited some time... Deep Sleep all over the time. Can't figure out for now, if it was S Health, WiFi, or anything else that caused the wakelock for sure. At least the reboot helped. I'll check that out on a long-term test, maybe I get some further conclusions.

WIFI related battery drain on G901F >>> qcom_rx_wakelock

Hi, I wonder if any of you could help me out.
I seem to have stumbled on an android problem rare enough that the internet hasn't got a solution.
My phone has been suffering increasingly bothersome battery drain, to the point that it can't be used properly and still last the day (or even close). I have identified the WIFI as the key problem - as long as WIFI is on, the phone is almost 100% awake, despite no use and screen off.
The phone is an S5, I have been through several factory resets and it is now rooted (for wakelock detector) - no external apps are yet installed so that definitely isn't the problem.
Having run wakelock detector. I have now pinned the problem down to two kernel wakelocks:
> qcom_rx_wakelock
> wlan_wow_wl
Does anyone know why these might be running constantly and how this problem can be dealt with.
So far, my browsing has turned up a handful of people with the same problem and no solutions...
Thanks very much.

the only solution to fix was to set static ip on your phone of that network (WIFI) youre connecting to

Awake (Screen off) is almost 100%, which seem to cause a battery drain.

I had a massive battery drain issue due to 7000000.ssusb wakelocks. My phone is rooted and i updated "disable_host_mode" file to "Y". Since then the battery drain decreased by a half. But still there is 9-10% battery drain in the period of 6-7 hours of idle period. BBS, showed there is around 98% Awake (Screen Off), I am quite not sure what is causing this, but I am certain that 7000000.ssusb is not causing this. I have attached the following screenshots of BBS.
I just wonder what might be the reason for this. I have -
1. Turned off wifi, data and location.
2. Put phone in Airplane mode
Can anybody point me to right direction? Thanks

Friend of mine has the very same issue. I suspect a HW defect, but he's lazy to go to a service center, so I can't confirm (yet)..
We tried rooting/unrooting, several reflashes of stock ROM, factory resets with/without apps restore etc., result is always the same - pretty much no deep sleep.

_mysiak_ said:
Friend of mine has the very same issue. I suspect a HW defect, but he's lazy to go to a service center, so I can't confirm (yet)..
We tried rooting/unrooting, several reflashes of stock ROM, factory resets with/without apps restore etc., result is always the same - pretty much no deep sleep.
Click to expand...
Click to collapse
Yup it is a hardware issue. I fixed it by changing charging port

You could try install a custom kernel and use the boeffla wakelock blocker to block 700000.ssusb. I guess you are on Oreo?