[Q] suspend_backoff issues - Galaxy Note II Q&A, Help & Troubleshooting

Since the last two days my battery on GT-N7100 has been troubling a lot, for instance I usually take a nap for 8-10 hrs during that time I keep my network connections off however when I get up I am surprised to see that there is a horrendous drainage of power like yesterday before I slept the power was 83% when I woke up it was 45% now this is certainly something very unusual. After studying my stats on WLD and GSAM app I found that suspend_backoff inside kernel(Android OS) seems to be the culprit apart from that facebook messenger my god...!! what an app is that in a span of 9.5 hrs it generated 127 wakelocks !! another prominent application in that list is google services it also generates a lot of wake locks. Now I have removed facebook messenger with the hope improving this scenario, don't know whether it will pay off or not.
Looking forward to some expert suggestions
Cheers!!:good:

Related

Battery drain caused by "Android OS"

Hi everyone. On Tuesday I recived a brand-new One X. I applied all the updates (it was until .11). It seemed that the battery didn't last a lot, and on the stats it showed a high usage coming from Android OS.
Yesterday I applied the Sense 4.1 update from the RUU, as on some forums I've read some suggestions to do a factory reset. – I've all the default settings.
Today, it happened the same. (I attach some screenshots).
The problem isn't the usage of the screen (14% –*18minutes), instead, it shows the biggest drain as "Android OS" which had a keep-awake time of 5h 16m out of a total 6h 11m of usage.
It has drained almost 4% every minute.
I don't think that the problem is caused by any app, as I have the stock ones and WhatsApp, Flipboard, FB, Twitter, Instagram, Pocket, Evernote and Chrome, yet, I haven't really used them...
Could you suggest me anything to try to solve this battery drain problem? I checked the battery stats thread and Android OS usage is 5–6% on average.
Some app is preventing your phone to sleep, there are 2 ways to find out, start uninstalling apps untill you find the app causing the problem or better reset and install one by one
Hi,
I've further researched and I found a question on Stackoverflow – I can't post links yet – which says that by using the following command
Code:
adb shell dumpsys power
you could see what wakelocks are on the phone.
I've tried it, but it seems that there's not any wakelock:
Code:
mPartialCount=0
mWakeLockState=
mLocks.gather=
mBroadcastQueue={-1,-1,-1}
mBroadcastWakeLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mStayOnWhilePluggedInScreenDimLock=UnsynchronizedWakeLock(mFlags=0x6 mCount=0 mHeld=false)
mStayOnWhilePluggedInPartialLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mPreventScreenOnPartialLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mProximityPartialLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mProximityWakeLockCount=0
mLocks.size=0:
mPokeLocks.size=0:
Should the app that created the wakelock be running, or it can also be stopped? Would work disabling an app instead of uninstalling it?
I'm not a Pro in this matter but I had that problem with every ROM I was using ARHD, IC u name it!
I found a temporary solution to that problem. Turn ur phone off for a good 10 minutes. Then u will see it go away completely to 2% or 3%.
Doing this on a 80+ charge does the trick!
I'm using the stock ROM. I will start by using BetterBatteryStats to find any deadlock.
Before using BetterBatteryStats I disabled automatic uploading to Dropbox, and I think that's what caused the big battery drain. Now, it's a very good battery life.
disable auto-sync if possible...
Android OS battery drain on unrooted HTC
I have the HTC one X and unfortunately ive been plagued by issues from day one. initially the issue was with the screen. I raised a ticket and the HTC singapore guys took like 10 days to get it replaced for me. after the 'repair', The WiFi reception wasnt great and there were tool marks all over the body..!.. i raised a ticket again, and this time they changed the stuff pretty quick. I got a new body and they claimed to change the internal boards and stuff.. Well i got my fon back the day before and the WiFi was great. But then came the next issue. The battery drain. and it was the Android OS process which was eating up by battery. I have attached some screen shots.
I read through a couple of posts in Xda and installed BBS. BBS showed a kernal wakelock which was keeping my phone awake 100%..!..
Could anybody help me resolve this issue please?. i have flagged the issue again to HTC, but im just plain tired of the cat and mouse game that i play with the service centre guys..
Also, Could this be a hardware issue or is this just a software issue?.
PS : i have tried factory Reset once and it did not help me.
ifrins said:
Hi everyone. On Tuesday I recived a brand-new One X. I applied all the updates (it was until .11). It seemed that the battery didn't last a lot, and on the stats it showed a high usage coming from Android OS.
Yesterday I applied the Sense 4.1 update from the RUU, as on some forums I've read some suggestions to do a factory reset. – I've all the default settings.
Today, it happened the same. (I attach some screenshots).
The problem isn't the usage of the screen (14% –*18minutes), instead, it shows the biggest drain as "Android OS" which had a keep-awake time of 5h 16m out of a total 6h 11m of usage.
It has drained almost 4% every minute.
I don't think that the problem is caused by any app, as I have the stock ones and WhatsApp, Flipboard, FB, Twitter, Instagram, Pocket, Evernote and Chrome, yet, I haven't really used them...
Could you suggest me anything to try to solve this battery drain problem? I checked the battery stats thread and Android OS usage is 5–6% on average.
Click to expand...
Click to collapse
Could you solve your battery issue?
Same problem here, no solution yet !!

Battery life seems terrible for me.. help!

I tend to lose about 1% (or a teeny bit more) an hour while on Wi-Fi. I know this is not normal, since others in this forum have reported half a percent loss per hour. Look at my screenshots!
Usually Google Voice never shows up in the battery stats, so I don't know why it did now. I only received about 10 texts... it stayed awake for 13 minutes Never happened before, but the battery drain was always like this.
And then there is Android OS.. 1h 25min?!!?
I have sync enabled for: Calendar, Contacts, Google Play Books, Internet, and Gmail (2 accounts for Gmail, the rest are 1 account). I receive no more than 10 emails a day.
And I'm pretty sure Facebook & Messenger shouldn't be waking up the device that much!
The kernel wakelocks seem crazy...
xFrozen said:
I tend to lose about 1% (or a teeny bit more) an hour while on Wi-Fi. I know this is not normal, since others in this forum have reported half a percent loss per hour. Look at my screenshots!
Usually Google Voice never shows up in the battery stats, so I don't know why it did now. I only received about 10 texts... it stayed awake for 13 minutes Never happened before, but the battery drain was always like this.
And then there is Android OS.. 1h 25min?!!?
I have sync enabled for: Calendar, Contacts, Google Play Books, Internet, and Gmail (2 accounts for Gmail, the rest are 1 account). I receive no more than 10 emails a day.
And I'm pretty sure Facebook & Messenger shouldn't be waking up the device that much!
The kernel wakelocks seem crazy...
Click to expand...
Click to collapse
I think that you have already answer your question. I mean why do you have to have all those apps , sync enable? I use all those and wifi, facebook, tagged i play games watch movies and music video and when i get home i still have juice in the batt to keep on.
What you have to do is customizing your settings (enable sync only on interval) or yet better, look for a battery saving apps like 2x battery.
dafortal said:
I think that you have already answer your question. I mean why do you have to have all those apps , sync enable? I use all those and wifi, facebook, tagged i play games watch movies and music video and when i get home i still have juice in the batt to keep on.
What you have to do is customizing your settings (enable sync only on interval) or yet better, look for a battery saving apps like 2x battery.
Click to expand...
Click to collapse
Well I know this is not a lot compared to what others have. Google Voice I use for texting; this is the first time it has stayed awake so long. Usually it's tiny. Facebook & Messenger don't sync. From what I know, this isn't a lot of syncing. I know this phone can do much better. Android OS and all those kernel wakelocks aren't normal, and aren't caused by Facebook or GV..
Battery saving apps shouldn't be necessary. I've seen many others get much better battery life without them & with FB.
Your problem is buried under the third attached picture, the "Kernal Wakelocks". Since you have turned on wifi for the whole time, it generated a couple of bad wakelocks, wlan rx wake, hsic. I think these wakelocks were due to poor signal reception. Also the crap facebook app drains a lot of battery.
In order to make Facebook not consume any background cpu, you have to go into the app and logout under settings each time. I all together just ended up getting rid of FB.
Your problem is obviously in the kernal wakelocks. Figure out what the top ones relate to and try to reduce them.
I've definitely noticed faster battery drain when I'm logged into Facebook or Google+. I strongly recommend to myself to stay logged out of those services when I'm not looking at the phone.
yeah all those apps like fb and google+... I never install the apps, I just use chrome to login... simples
7% battery use in 8.5 hours is not "terrible" by any way, shape or form. That's plenty on target for a decent 2-3 days of use between charges; about average for the GN2.
There's nothing wrong here, at all.
FloatingFatMan said:
7% battery use in 8.5 hours is not "terrible" by any way, shape or form. That's plenty on target for a decent 2-3 days of use between charges; about average for the GN2.
There's nothing wrong here, at all.
Click to expand...
Click to collapse
Exactly. I was so astonished when i opened the thread and read that hes losing 1% per hour...mine drains faster and i still get 8hrs on screen time with +24 hrs uptime..
Swyped from another galaxy
skivnit said:
Exactly. I was so astonished when i opened the thread and read that hes losing 1% per hour...mine drains faster and i still get 8hrs on screen time with +24 hrs uptime..
Swyped from another galaxy
Click to expand...
Click to collapse
Are you sure? I don't get 8 hours screen on like this in a 24h period. More around 6hours and it's mostly simple things like web browsing, reading comics, news, instant messaging, and some video playback.
I guess I'll remove FB for a day and see how it goes...

[Q] Rapid Battery Life depletion during sleep

Hey XDA friends. I got the Verizon HTC One a few weeks ago and battery life started out fantastic. When I put away to go to sleep it only lost 7% all night with GPS on and wifi on and all that and I was astonished. However as time went on I found those results kept getting worse and worse until I was draining 30% in a night. I went and uninstalled battery guru and now I only drain 12% a night. Some nights however I still lose 20% in a night with sleep mode on. How do I check what keeps waking my phone up and draining my battery. I'm afraid this will affect my phone's battery in the long run. I will start disabling GPS at night but I wish I still had that 7% in a night. How do I check what is messing with my phone???
nscian12 said:
Hey XDA friends. I got the Verizon HTC One a few weeks ago and battery life started out fantastic. When I put away to go to sleep it only lost 7% all night with GPS on and wifi on and all that and I was astonished. However as time went on I found those results kept getting worse and worse until I was draining 30% in a night. I went and uninstalled battery guru and now I only drain 12% a night. Some nights however I still lose 20% in a night with sleep mode on. How do I check what keeps waking my phone up and draining my battery. I'm afraid this will affect my phone's battery in the long run. I will start disabling GPS at night but I wish I still had that 7% in a night. How do I check what is messing with my phone???
Click to expand...
Click to collapse
go to settings/power/usage. this will tell you which app is using the most of you battery. also you should never have gps on while youre sleeping. you might also want to turn off auto-sync and then re-enable it after you wake up. you can create a widget to do just that. if you need help with that, just let me know.
Turn data Wi-Fi and gps off lol.... You are asleep
Sent from my HTC6435LVW using xda app-developers app
nscian12 said:
Hey XDA friends. I got the Verizon HTC One a few weeks ago and battery life started out fantastic. When I put away to go to sleep it only lost 7% all night with GPS on and wifi on and all that and I was astonished. However as time went on I found those results kept getting worse and worse until I was draining 30% in a night. I went and uninstalled battery guru and now I only drain 12% a night. Some nights however I still lose 20% in a night with sleep mode on. How do I check what keeps waking my phone up and draining my battery. I'm afraid this will affect my phone's battery in the long run. I will start disabling GPS at night but I wish I still had that 7% in a night. How do I check what is messing with my phone???
Click to expand...
Click to collapse
Do you use blinkfeed, that will kill your battery pretty fast. Even if you don't think you are using it, go check and see if it's syncing anything in the settings. I thought mine was turned off, but then I logged into facebook (turned sync off in facebook), later I found that blinkfeed was syncing it anyway w/out my knowledge.
dspcap said:
Do you use blinkfeed, that will kill your battery pretty fast. Even if you don't think you are using it, go check and see if it's syncing anything in the settings. I thought mine was turned off, but then I logged into facebook (turned sync off in facebook), later I found that blinkfeed was syncing it anyway w/out my knowledge.
Click to expand...
Click to collapse
you cant turn blinkfeed off...
.kronos. said:
you cant turn blinkfeed off...
Click to expand...
Click to collapse
You can go into settings and make sure everything is unchecked. Mine had several checked by default and it was draining battery.
Sent from my HTC6500LVW using Tapatalk 4
Update: Battery only drained 10% last night with GPS off, Blinkfeed never updates on its own and all social networks are checked off (I don't like my social networks on Blinkfeed) other than that though everything seems to be in check. If anyone else has anyway to improve that 10% let me know (by the way the 10% was drained during 9 hours of constant sleep I went from 77 to 67)
nscian12 said:
Update: Battery only drained 10% last night with GPS off, Blinkfeed never updates on its own and all social networks are checked off (I don't like my social networks on Blinkfeed) other than that though everything seems to be in check. If anyone else has anyway to improve that 10% let me know (by the way the 10% was drained during 9 hours of constant sleep I went from 77 to 67)
Click to expand...
Click to collapse
airplane mode...
Really, 1% per hour on standby with cellular radios on is pretty acceptable. Depending on signal strength, the radio could be pulling that just to maintain a connection to the tower.
Thanks everyone!
With GPS off, Sleep mode on, and NO BATTERY HELPER APPS (Battery guru was diminishing my battery life) I got a record breaking (for me) 4% loss in battery life during my 8 hour night's sleep, not bad if I do say so myself, after that my battery has been a lot better. I wish Verizon would give us HTC's battery saving software back but let's not ask too much of Verizon or they might give us timely updates.
nscian12 said:
With GPS off, Sleep mode on, and NO BATTERY HELPER APPS (Battery guru was diminishing my battery life) I got a record breaking (for me) 4% loss in battery life during my 8 hour night's sleep, not bad if I do say so myself, after that my battery has been a lot better. I wish Verizon would give us HTC's battery saving software back but let's not ask too much of Verizon or they might give us timely updates.
Click to expand...
Click to collapse
Glad to hear this!!
those battery saving apps are so pointless IMHO, it's just another app and if coded incorrectly will do exactly what it did to you, destroy your battery that is working fine. very happy you can now enjoy your phone the way was designed to be!
andybones said:
Glad to hear this!!
those battery saving apps are so pointless IMHO, it's just another app and if coded incorrectly will do exactly what it did to you, destroy your battery that is working fine. very happy you can now enjoy your phone the way was designed to be!
Click to expand...
Click to collapse
Thanks! unfortunately I don't root my phones but for now the One does what I need it to perfectly and seamlessly
nscian12 said:
Update: Battery only drained 10% last night with GPS off, Blinkfeed never updates on its own and all social networks are checked off (I don't like my social networks on Blinkfeed) other than that though everything seems to be in check. If anyone else has anyway to improve that 10% let me know (by the way the 10% was drained during 9 hours of constant sleep I went from 77 to 67)
Click to expand...
Click to collapse
Hey..I had the same problem so...first download wakelock detector from play store..after installing jus use your phone like as usual..after 4 to 5 hrs or right before you charge your phone, open the wakelock app and check what's waking up your phone during sleep..for everyone it seems the battery is drained by Google services ..the main culprit being the location services.. so switch off the location services in settings..and also in Google maps, go into setting and then into Google location settings and make sure location reporting and location history are disabled, make sure they are unchecked.. that's it..restart the phone..fully charge it and test it out ..and DON'T use any battery saving apps ..and also uninstall wakelocker app after your battery life is back to normal..I'm an average user and I unplug around 9 in da morning and when I come home around 6, I still have 65% left..I don use facebook .. heard even facebook app is major battery drainer....you jus have to tweak and play with settings till you find your desired battery life expectancy cos everyone uses their phone differently..and we all have different apps so the main thing is to find out what's eating the phone battery most...I'm just pleased with my decision in picking HTC ONE over galaxy S4
similar problem here....google services is killing my battery (relatively). location is part of it, but google hangouts is also going crazy (watchdog alerts me to excessive usage....over 50%, but hangouts was at 100%)
i was spoiled on my g-nex, where i left wifi, bluetooth, and GPS on 24/7 and could easily go 24 hours. now i'm lucky to get 12 (with about 1 hour of screen on time).
I'm hoping things will sort out, device is only about a week old, but google optimized location usage (iirc) such that it isn't supposed to constantly ping and kill battery. we shall see, i guess.
I'm not sure what the problem could be but I'm just gonna say that yesterday I got around 18 hours of battery life with over 5 hours screen on time which I consider awesome battery life.
I'm stock, so it's definitely possible to get good battery life.
10 percent overnight? Thats not that great but not horrible. My dna is running carbon (android 4.3) I use tasker to turn off autosync and data/wifi and put it on silent at whatever set time I make it. My phone drains about 5 percent max overnight, usually a lot less.
anilpalepu said:
Hey..I had the same problem so...first download wakelock detector from play store..after installing jus use your phone like as usual..after 4 to 5 hrs or right before you charge your phone, open the wakelock app and check what's waking up your phone during sleep..for everyone it seems the battery is drained by Google services ..the main culprit being the location services.. so switch off the location services in settings..and also in Google maps, go into setting and then into Google location settings and make sure location reporting and location history are disabled, make sure they are unchecked.. that's it..restart the phone..fully charge it and test it out ..and DON'T use any battery saving apps ..and also uninstall wakelocker app after your battery life is back to normal..I'm an average user and I unplug around 9 in da morning and when I come home around 6, I still have 65% left..I don use facebook .. heard even facebook app is major battery drainer....you jus have to tweak and play with settings till you find your desired battery life expectancy cos everyone uses their phone differently..and we all have different apps so the main thing is to find out what's eating the phone battery most...I'm just pleased with my decision in picking HTC ONE over galaxy S4
Click to expand...
Click to collapse
you can turn off updates in facebook and its not bad, but yeah if you have autoupdate on, it can kill the battery.
as far as the OP, I don't get why you don't charge you phone while you are sleeping. Seems like the perfect time.
Turning GPS off shouldn't affect your battery life. If you're not using your phone, the phone isn't going to use the GPS for anything. So it shouldn't be using your battery. The culprit is usually an app that is wakelocking your phone. So you need to find which app it is that constantly wakes your phone from deep sleep. Turning off autosync would help a bit if you are really paranoid. The big thing that hurts our battery when the screen is off, is the LTE radio, but most people are connected to WiFi when they sleep so it's not a big deal.
Just an FYI, turning off GPS has been ineffective since 2.2 Froyo. When Gingerbread 2.3 was released like 2+ years ago, it allowed for the GPS to only be used when an app called for it to be used. Otherwise GPS will not do anything unless you pull up an app that calls it to do something.

Strange battery usage behaviour

I have a strange issue with my 32G WiFi FLO that I was hoping the knowledgeable members of XDA could help me diagnose.
Since I got it at launch, it's been sucking the battery dry. But not consistently. I have no idea what or why, but here's what I know so far:
All details are with auto sync OFF. WiFi OFF on sleep, location services ON (but cannot use WiFi)
Not unlocked or rooted (stock)
- From boot, and for the first 20-40 hours after that, battery usage on standby averages out to around 0.13% per hour.
- After that, and for no reason I can discern, battery usage jumps to an average of 0.84% per hour, and keeps draining like this usually until I reboot or need to charge
- Stock battery app shows no apps draining, BBS shows no apps draining stuff or excessive wakelocks and indicates the tablet is spending most of its time in deep sleep.
- Life with screen usage seems to be around 7+ hours either way, so this is as expected.
- Sent to ASUS to diagnose & repair, received with note that front camera unit replaced and OS reloaded.
- Issue is still occurring after "repair"
- apps running at the time are usually Android Keyboard, Android Services, Settings. Sometimes Play Store, Currents (even though I don't use it and have never launched it), Google Play Services as well. These are the only apps that run regardless of state of battery drain.
Can anyone think of any reason this is occurring, or where else I can go to check for more info? I'd prefer to stay stock/unrooted.
I'm looking to send it back for RMA *again*, but I'd rather tell them where to look than try and trust that they'll know where to look to fix it this time.
Guess no-one else has this issue or any ideas on where to look for this, since there are no replies

[Q] Battery Life

I'm sure another battery life thread exist but the search function is not working for some odd reason.
Anyhow, I recently bought this device(32 GB) model on Ebay and it is a refurbished edition. I updated it to the latest 4.4.2 and the device is amazing. However, one issue that disappoints me is the battery life. It lasts around 5-6 hours if I'm constantly browsing the web and watching videos. To charge it, it takes a good 7 hours. I looked at the battery and noticed that Android OS was responsible for 56% of the battery drainage. I notice the back of tablet(near the camera) getting very hot when I was playing some games as well.
I'm really trying to push this things to the limits to check to see if it's faulty so I can return it before the 14 days is up. My questions are, what is the typical battery life you users experience and how long does it usually take you users to charge it? Also, my Android OS has never taken up that much battery---is this normal? If not, how can I fix it?
Thanks!
Streaming videos kills battery in general but that's still high battery usage for Android OS. I suggest you invest BetterBatteryStats from the play store and see if something else is causing your battery drain. Post some screen shots when you get the app. I
My Android OS battery utilization is sitting at 7% at the moment. I don't stream much data, and but I think high Android OS battery utilization has more to do with background data than video or music streaming anyway
Few things to improve battery life in general is to disable location reporting and location history in GPS menu. Better yet, but disable GPS in general. Turn off the setting in the advanced wifi menu that let's apps scan wifi even if it's off for location data. Google+ and hangouts are big drainers... Disable or unistall them is you can or at least don't let them sync data. Go to Google account setting and disable syncing of anything you don't needs.
Edit: I just stream 1.5hrs (1.3gb data) of Netflix and my Android OS battery usage didn't go up. It's gotta be a rogue process taking CPU cycles/checking location/sending lots of data. Install BBS and see what's causing it. More than 7hrs of screen time for me today and I still have 25% battery left.
@streetenigma23 http://forum.xda-developers.com/showthread.php?t=2742745
Usage = 10hrs
Charge Time = 4-5hrs.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.
Thanks for the suggestions. I will go ahead and d/l that app and see how it goes. I'll put up some screenshots and try to see if we can get to the bottom of it.

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