yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] loveubuntu:
edit: the cm9 nightly 03052012 by itself gives the same error. The kernel is fine with the cm nightly 03022012.

the combination of this new kernel (M1) and the recent CM9 nighlty (03052012) release gives the "android.process.acore" stopped error. Never happened with the 18.5 kernel. I will go to CM9 rom and kernel to see if it happens or not.
[Samsung Galaxy Nexus] TeeRom:
Where do you change your syncing settings? I can't find it to change the time interval.
[Samsung Galaxy Nexus] bendirkss:
Im running AOKP so i have the option in power save settings
[Samsung Galaxy Nexus] TeeRom:
That would explain why I couldn't find the settings. I'm on Bugless Beast. How is AOKP with battery? I may have to switch over.
[Samsung Galaxy Nexus] bendirkss:
It shouldnt even be a question, AOKP is the best in the business! As far as battery life goes, your better off going over to the thread rather than asking me cause i dont get very good battery life which apparently is an issue caused by myself that i need to fix which i have no idea how to.
[Samsung Galaxy Nexus] alphanu22:
dont want to change subjects from kernels to roms but it rocks and no complaints here-
[Samsung Galaxy Nexus] bendirkss:
Should I try disabling light flow for a day and see if that's a drainer? I shouldn't need to turn data off or use 2G, I just think there maybe be something simple to clean battery life up.
[Samsung Galaxy Nexus] foueddyf:
Franco, Your latest version of your app 3.3.2 now saves the governor and OC settings successfully, at least for me.

Thx man :)
[Samsung Galaxy Nexus] Magnus_CA:
I call BS on anyone claiming to get 5 hours of on-screen time with at least wifi running the whole time. I don't think it's possible with even the extended battery. Show us the screenshots to back it up.

If you get three hours of on-screen time between texting, browsing, the occasional game and phone call, with no Bluetooth or GPS enabled then you should be happy. That assumes you have no appreciable partial or kernel wakelocks. Four hours would be exceptional although I think you need the extended battery to break 4 hours. 5 hours? Forget it.
[Samsung Galaxy Nexus] mike216:
You can get it in wifi with 2100 battery. I've gotten over 3 hours with plenty of battery left so I believe it

Maybe ill try this weekend and post proof
[Samsung Galaxy Nexus] sway40:
It's doable, I've had over a day on battery with a few min shy of 4hrs screen on time. Mostly not on wifi but was on wifi some while I was home. I also had juice defender going but aokp power saver works just as good.

I can't imagine anyone getting the battery I got though leaving data on constantly without it turning off.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] foueddyf:
Challenge taken! Update in a few days :)
[Samsung Galaxy Nexus] jprakes:
do you have a link to there XDA page? i searched and came up empty
[Samsung Galaxy Nexus] eman3316@optonline.net:
http://xdaforums.com/showthread.php?t=1179809
[Samsung Galaxy Nexus] gaming09:
something odd, phone wont charge past 82%...any ideas
[Samsung Galaxy Nexus] TEK112:
I would bleed it until empty and recharge with the phone off until the battery bar goes solid. Then boot it up and see where you stand. If that doesn't work you can try bump charging it to get to 100, but that is a pain in the butt.
[Samsung Galaxy Nexus] bendirkss:
Idk if I can run the 2G when screen is off. It takes to long to reconnect to 3G, its just kind of messy. Maybe just setting my syncs to every 15 mins or every 30 could do some battery saving ?
[Samsung Galaxy Nexus] TEK112:
Do what I do, don't use 4G unless you plan on downloading something big or surfing the web. I noticed tremendous battery gains.
[Samsung Galaxy Nexus] bendirkss:
I just have 3G here in Canada.
[Samsung Galaxy Nexus] gaming09:
ok sounds like a plan i will do that :) thanks
[Samsung Galaxy Nexus] TEK112:
Sorry, I just went back and reread your story. Here is the truth, I have an extended battery and use my phone like it should be used. Exchange email, gmail, facebook, G+, app updates, messaging, tapatalk and occasionally I use it like a phone...lol

2.5 hrs on screen time with an extended battery and screen set to auto-brightness with kernel 350/1350 interactive. Phone lasts about 12 hours on one charge.

I saw one thread where someone got 5hrs 10min of screen on time.... All I know is that if 90% say 2.5-3hrs hours max and the other 10% say 4hrs+, I will go with the majority. You may want to try a 4.0.4 ROM as it fixes some bugs with Android OS. What are you currently getting?
[Samsung Galaxy Nexus] bendirkss:
What am I currently getting with battery life? 14h with a charge and maybe 2h screen time(tough to pull off) I use whatsapp for communication and that's basically all I do on my phone during the day. Idk how that can murder my battery so bad. Everyone else with 3his browsing, phoning, gaming, etc.

EDIT: I disabled gtalk, and uninstalled light flow, set my syncage to every 15 mins.
[Samsung Galaxy Nexus] Aerocaptain:
That was 5 hrs of normal everyday use. Text messaging, browsing, YouTube videos, games, and about 30-40 minutes of talking. As I mentioned earlier, the screen was never kept static; I was always doing something with the device. I did not stream music or play 3D games and I had wifi on the majority of the day (4g the rest). I keep my GPS always on, my 4 email accounts sync every 15 minutes, brightness was on auto, and no battery saver app was used.

I bet I can even reach 6 hrs if I reduced my screen brightness to <30%.
[Samsung Galaxy Nexus] rgoyena:
Its funny. I reinstalled the update and my battery life gotten better. I was having some horrible discharge and heating issues.
[Samsung Galaxy Nexus] SemperGumbee:
Hey. First off let me say this is a great kernel. I do seem to have an issue though. I checked the box to disable Logging in order to free up a smidge of space. When I plug it up, DDMS can no longer access the log file "main" which is understandable. Since then, I have disabled the option and rebooted the phone, expecting the logger to work. But the file still does not exist. Is there a way to add this back upon reboot with the option off?
[Samsung Galaxy Nexus] dcoy82:
Very off topic but sorry I really, really LOL'd at this out of context when I read it...
[Samsung Galaxy Nexus] alphanu22:
buhahaha, i think webmd.com for assistance, not xda :p
[Samsung Galaxy Nexus] bendirkss:
After turning syncage to every 15m battery hasn't really improved. 50m of screen time
[Samsung Galaxy Nexus] bendirkss:
I'm not always on wifi, I just always have wifi enabled.
[Samsung Galaxy Nexus] alphanu22:
toggle it off if not at home or work?
[Samsung Galaxy Nexus] bendirkss:
I'm in school till 2, work till 6 where I don't have wifi either places. I just keep it on even though I only use it at home and at a friends house sometimes. I can't see wifi being the main drainage though, or even a factor of it considering I should be able to get at least 3.5h screen time of just messaging and tapatalk and I can only get 1.5-2h.
[Samsung Galaxy Nexus] veli69:
I use it to mount samba shares and play movies / anime off my home server. If he compiles a module does it have any negative effect if its not loaded?

Im not really a fan of improving battery life by removing functionality its very "Iphone 1" lol
[Samsung Galaxy Nexus] bendirkss:
So I tried removing lightflow and setting my sync to every 15 mins to save some power in hopes to get maybe 2.5-3h screen time. Neither increased my battery life so I've yet to find out what's killing it. I enabled hotplug and idk if that's really doing it. I think there's something out of the ordinary that has am easy fix. When my screen is on I watch my percentage number go down quickly. Standby isn't very impressive either.
[Samsung Galaxy Nexus] TEK112:
I sent you a PM.
[Samsung Galaxy Nexus] ufkal:
Deep Sleepin

I installed the most current version this morning. Since then, my phone will go into such a deep sleep that I have to pull the battery to get it to turn on. I'm not thinking its supposed to do this. Unless I missed a setting somewhere. Does anyone have any ideas on what I did wrong?
[Samsung Galaxy Nexus] speedfreak228:
Same here. I get close to 2 hours of screen time. Brightness is at 50% and only use 3g. I turn sync and wifi off when I'm not using wifi and still bad battery life. Idk what else to do
[Samsung Galaxy Nexus] sway40:
Try jd and have data off while you're not using it. Only way I know how to extend battery the most.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] Aerocaptain:
Download "android assistant". There's a function that allows you to see every programs battery discharge percentage. It'll make it easier to find the trouble app......if I remember correctly, light flow sucked 5%-8% of my battery per day.

Sent from GNexus w/CM-9 & franco.kernel
[Samsung Galaxy Nexus] speedfreak228:
I have jd already. Also emails are set to manual sync only
[Samsung Galaxy Nexus] rjskalet:
this is odd that you are only getting 2 hrs. i am running essentially the same thing you are and am averaging eight hrs of battery life. i let email/gmail sync every hour, i have haxsync sync every 30 mins. and i only run 3g with full brightness and i text all da, like my screen is rarely off. are you sure there isnt an app that when opened is causing your phone to stay on? download cpu spy and see if your phone ever sleeps, because it seems like your phone isnt sleeping at all

Edit: use that app that the post above yours suggested as well. that will help to determine the problem
[Samsung Galaxy Nexus] speedfreak228:
Been checking CPU spy and it stays in deep sleep most of the day. Are you using jd premium or free one? If you are using premium what settings do you use. Maybe I got a bad battery Idk. If I play drag racing or any games it sucks my battery fast. My phone is either in deep sleep at 700 or 1200 when I just checked CPU spy
[Samsung Galaxy Nexus] rjskalet:
i am actually not using jd, i just realized that you were. maybe thats the source of the problem? all of my sync stuff i do through the accounts in the settings menu. as far as kernel settings i am using 1200/700 conservative. the only thing that i can think of is that jd is turning something off when the screen is off and then when you turn your phone back on it is having to restart it which could consume a significant amount of battery. i noticed that when running the hotplug mod on franco my battery life was worse because i have a tendency to lock my screen after every text so the one cpu would be constantly cutting on and off and it was draining my battery much faster than when i just used the stock settings for franco.
[Samsung Galaxy Nexus] speedfreak228:
I just started using jd. I haven't been using it and getting same results. My CPU is set to on demand I might change it to conservative. I do the same thing so I'm going to disable hot plug too
[Samsung Galaxy Nexus] rjskalet:
yea hotplug could be the issue then because i know when i had hotplug on i was getting around four hours of battery life so i would try without hotplug and jd and see if maybe that helps.
[Samsung Galaxy Nexus] bendirkss:
Don't wanna sound like a moron but what's jd
[Samsung Galaxy Nexus] bendirkss:
Well I don't see any improvement after removing it :s

And this is screenshots from android assistant, not sure if its what we wanna be looking at.
[Samsung Galaxy Nexus] speedfreak228:
Juice defender.
[Samsung Galaxy Nexus] luckylui:
Does anyone have the gamma offset file in there init.d folder? If so may I have it please.. Franco apk not sticking w the scripts... thanks all!

Sent from my Galaxy Nexus
[Samsung Galaxy Nexus] sic0048:
I don't think I would complain about that battery life. You are on pace to get 13 hours with 3 hours screen time. That might not be the world's record, but certainly it isn't terrible either.

It looks like your phone is sleeping pretty well when the screen it turned off, but you still might want to make sure that the phone is sleeping as much as it can when the screen is turned off.

The best app to figure this out is the BetterBatteryStats app. Unlike the other battery programs that have been suggested so far, the BBS app will allow you to see how many times an app "woke" the phone up and how long it kept the phone "awake". This information is much more helpful than just seeing how much battery power an app used. You need to know WHY an app is using battery power!

Here is a great "How To" that will help you learn how to use the app.

For most other posters that are having bad battery life, I suspect it is due to some app or process that is preventing the phone from sleeping properly. It is rarely the kernel or ROM causing the bad battery life issue.
[Samsung Galaxy Nexus] bendirkss:
I've been using BBS for a while now. It doesn't show much.
[Samsung Galaxy Nexus] sway40:
What rom are you on, if all else fails try a fresh install of rom and kernel and the most current gapps then without any apps you need add then one by one to see what's killing you battery. Process of elimination is last resort.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] azsl1326:
I have been running Franco's kernel since I got the phone, starting with 18.0. I have not experienced any issues up until today, when I experienced 2 SODs and had to do battery pulls. I am running his latest kernel M1 along with AOKP.
[Samsung Galaxy Nexus] sic0048:
What about the other screens? Is the total wake time reasonably close to the screen on time? Either way, I don't think your battery life is all that bad. So I am not sure there is a lot more you can eek out of it.
[Samsung Galaxy Nexus] jinni10:
still the best kernel out there
[Samsung Galaxy Nexus] upther:
Do you have Hotplug enabled? I'm running AOKP 27 and anytime I enable Hotplug, I end up with a SOD. Keep it disabled and I'm golden.
[Samsung Galaxy Nexus] bendirkss:
Can someone look at my 3 previous screenies and tell me if that is normal? My Android OS keep awake time specifically
[Samsung Galaxy Nexus] TEK112:
That looks normal to me. Almost exactly what I get. Your cell reception sucks like mine (I work in a radiology department... lead lined walls and all) and that is one of the biggest culprits. Don't worry so much about Android OS. It is a reporting bug that is corrected in 4.0.4. It says it's utilization is high, but in reality it is not. Better battery stats (search XDA) will give you a much better idea of what is truly running.
[Samsung Galaxy Nexus] bendirkss:
I use BBS. Longest wake is like 10m
[Samsung Galaxy Nexus] GinoSylum:
Love the kernal because i love the control i'm getting over stock. Messing with the colors, OC and so on... BUT i have been using it for a few days and there is no way around it, my battery life has taken a real hit over stock. For the record I'm using 4.0.4 Stock rooted from craigacgomez. When i was totally stock (4.0.2) with stock kernal i would loose no more then 1% an hour when the screen was off. That didn't change at all with 4.0.4 and THAT stock kernal. Now, the battery drains about 6% an hour when the screen is off. Its not a rouge app, its not being over clocked (it happens when I'm underclocked as well). Since I started using this kernal by battery life has dropped. I can say that because that is the only change i have made.

I'm not bashing the kernal, i even paid for the app because i wanted to support the dev for all the hard work.

For people getting good life, what are you doing? what settings are you using? I know that no 2 phones are created equal and some kernals just don't play well with some phones, but i would love to know if I'm simply doing something wrong.

I'm using Milestone 1-

Max CPU is 1200 (i have used 1350 and 1000 and see no difference in bat life or performance)

Min CPU is 700

Scaling gov- ondemand

Hotplug Mod is checked

Thanks in advance for any feedback
[Samsung Galaxy Nexus] JohnKuczek:
Try switching the gov to conservative, it is still responsive and zippy, but better on battery.
[Samsung Galaxy Nexus] bendirkss:
And run 1000 or1200? I'm going for battery life also, running 700-1000 on demand, gonna switch to conservative noe I guess. And I set my syncage to every 30 mins and enabled hotplug.
[Samsung Galaxy Nexus] GinoSylum:
Thanks, I'll try that and see how it goes.

EDIT: So far so good... its been an hour and i dropped 1% with the screen off... just like the old days ;) thanks! I'll keep tweaking.
[Samsung Galaxy Nexus] JohnKuczek:
I run 350 and 1000 with Hotplug enabled, but there is an argument that 700 is just as good as 350, so that is up to your preference...
[Samsung Galaxy Nexus] GinoSylum:
wow really? you find that just as snappy as 1200 or 1350? to tell the truth i don't see much change one way or the other. Are you sacrificing speed or do you not see a change anyway?
[Samsung Galaxy Nexus] bendirkss:
1000 works great for my everyday use
[Samsung Galaxy Nexus] klisp:
Hi everyone ,

Dude's, the sound coming out of these OEM samsung headsets using franco's two sound mods on this latest kernel is %@%#* amazing! I'm extremely impressed!!! I feel like going to my Verizon store and showing my rep how amazing our phone is..lol (he's a friend too) People are gonna be jealous when I show them this!

Klisp :eek:

**Using high quality mod & set to 13 volume boost

*Volume+ is NOT installed
[Samsung Galaxy Nexus] JohnKuczek:
I typically have several apps running and I have not noticed any slow down which was not actually attributable to poor network connection quality.
[Samsung Galaxy Nexus] GinoSylum:
Cool... i'm running right now at 1350 as a test. I'm sure I'll end up dropping down to 1000.... Love just having the option to do it :D

BTW, messing with the color is awesome. I have the screen looking amazing. It was great before, now its beautiful.

Thanks Franco :cool:
[Samsung Galaxy Nexus] bendirkss:
Does this seem like a lot of drop? 50m of screen time. I was told to set syncage to every 15, I did 30m instead and it almost seems worse.
[Samsung Galaxy Nexus] kjwalker:
The higher the sync rate, the more battery you will use. Your phone has to come out of deep sleep to sync the accounts. For 50m of screen time and your phone not being asleep for very long periods at all, I could say it looks normal.
[Samsung Galaxy Nexus] mike216:
I found some kind of bug in the rom because this has happened to me on 2 different kernels..

If I leave it in cdma only and toggle airplane mode and let it idle some then uncheck airplane mode my something gets stuck on and drains the battery with screen off?
[Samsung Galaxy Nexus] alphanu22:
this is what i been rocking and love it
[Samsung Galaxy Nexus] bendirkss:
I think hot plug drained my battery more than saved it. As you can see I turn my screen on often to message. So maybe enabling and disabling a core so often isnt benificial
[Samsung Galaxy Nexus] alphanu22:
or GSM Radio's dont like le Single Core being shut off...
[Samsung Galaxy Nexus] GinoSylum:
I was thinking the same thing. Anyone else KNOW for a fact that this only helps if the phone is off for long periods of time?
[Samsung Galaxy Nexus] bendirkss:
Ya that to. I dont know much, but im just thinking it starting and shutting off so often could cause battery drain. It may take a lot of work for the phone to do that but like i said, idk.

---------- Post added at 04:01 PM ---------- Previous post was at 03:59 PM ----------

I think all we can do is test for ourselves. I already tested and i think it just does worse for me. Another thing i wonder about is the people who get the 4h screen time, is that like over 10m of it on at a time and being on it for a while. Or is that possible with someone using it like me, on and off often?
[Samsung Galaxy Nexus] rjskalet:
I believe that yes if you leave your phone off for a long period of time the hot plug mod would prove to be beneficial however when i used it and turned my screen off and on every five minutes i noticed that the hot plug mod drained my battery quicker but its more based on how you use your phone. obviously if you go through a huge period of time without using your phone then you should use the hot plug mod however if you are like me and are always using your phone then hot plug shouldnt be used.
[Samsung Galaxy Nexus] GinoSylum:
does anyone mess with the undervolt settings? How do you take advantage of this, if at all?
[Samsung Galaxy Nexus] rjskalet:
i have messed around with it but havent really noticed a difference, i usually start by -50 on each of them and then keep dropping them until i get a bootloop but like i said i have never really noticed a difference.
[Samsung Galaxy Nexus] sway40:
Not having good battery results from m1, Ima go back to 18.6. Im at 76 percent already with only 30 min screen on time, I mean im at 11hrs unplugged but that's still not good for me with only half hr of screen on time. It's not horrible, but 18.6 was beast in battery.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] bendirkss:
That'd be a miracle for me:confused:
[Samsung Galaxy Nexus] sway40:
Im not complaining don't get me wrong, im getting very good bat life. Just seems while my screen is on with 18.6 my bat drains slower so I got better on screen time. I even have my Max at 1000, min still is 700.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] bendirkss:
Yea i run 700-1000 as well
[Samsung Galaxy Nexus] sway40:
Well with 18.6 I could run 1.35max and 700 min and still have amazing bat life.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] rjskalet:
hey by any chance can you post 18.6?
[Samsung Galaxy Nexus] sway40:
There's a link to all of them a few pages back.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] bendirkss:
Hm strange, maybe ill run at 1200 for a day rather than 1000 and see how that goes. Ive tried so many thing for my battery life, still not the best. I just flashed AOKP B27 and obviously franco M1 so maybe ill have good battery life;)
[Samsung Galaxy Nexus] rjskalet:
I am about to go back to 18.6, i been running m1 with miui today and i have had to charge my phone twice, im guessing its because i havent really had service in class but either way, my battery wasnt looking too good today.
[Samsung Galaxy Nexus] Zacisblack:
So I have two pretty bad wakelocks that I can't get to go away. Yesterday I had to uninstall chrome because there was a huge partial wakelock for the sync feature.
[Samsung Galaxy Nexus] sway40:
Go to manage apps and then running apps and see what's been on for a while. You definitely have something running constantly.

Actually looks like a kernel problem, trying clearing cache and dalvik again and reflash the kernel.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] luckylui:
Testing nightly r58. Will report :)

Sent from my Galaxy Nexus
[Samsung Galaxy Nexus] mike216:
Klipsh is the **** +1 on the Franco sound tweak. Sounds like it should have in the first place! Thanks to Franco we have it sounding amazing
[Samsung Galaxy Nexus] neederishelp:
So, what's different with the new nightly?

Never mind, found this:
[Samsung Galaxy Nexus] sway40:
So I guess m1 kernel battery wasn't too bad, this was with using some 4g and tethering, and mostly no wifi just while I slept. If I wouldn't have used 4g which I hardly ever do, I could've squeezed more screen on time out of it.

~ Sent from my GNexus running Aokp~
[Samsung Galaxy Nexus] Grady:
Is it normal for my kworker to be so high? I charged my phone to 100% last night and took it off for about 6 hours and just let it sit there. When I woke up, I was at 86%. CPUspy says there was deep sleep, but I can't tell for how long.

When I look at BetterBatteryStats, I have about 11 kworker processes that are pretty high compared to everything else. What exactly should I be looking for in determining what's eating up my battery?

I'm on M1 with CNA 1.5.0