yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] :
Links are battery images, but I didn't post them as links because the images are huge.

http://dl.dropbox.com/u/36164599/Screenshot_2012-01-28-14-47-43.png

http://dl.dropbox.com/u/36164599/Screenshot_2012-01-28-14-51-33.png

What is the deal with these first four wakelocks? I'm running 14.4 with CM9 but have had these since flashing the kernel. I've tried everything I can think of, and have made sure that USB tethering is not activated. Battery life would be way better if I could get rid of these wakelocks.. but maybe they're normal? Staying on wi-fi seems to help the overall battery life, but I still get these wakelocks.
[Samsung Galaxy Nexus] mike216:
That's about what I get on other kernels with good battery life on franco's 14.1 I was at 94% after I let it sit over night 8 hours later. That's exactly my method of testing kernels

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] mike216:
I don't think its the kernel but wacky system battery calibration. It will take a few charge cycles get more consistent reads

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] :
Mike are you referring to my post? I've gone through several charge cycles and still get massive wakelocks.
[Samsung Galaxy Nexus] ericmc:
help

hey guys, just flashed 14.4 and im stuck at the google boot screen...not sure what went wrong.

ive rebooted in recovrery and wiped...still nothing.....
[Samsung Galaxy Nexus] ndwatkins:
Decided to leave my phone off the charger last night to test idle battery. Went to bed at 82%. 12 hours later (REALLY slept in-yay Saturday) it was at 75%. I'm pretty pleased with that. (On 14.4)
[Samsung Galaxy Nexus] stevonyc35:
Are you on 4.0.2 or 4.0.3?

This kernel only works on 4.0.3 roms
[Samsung Galaxy Nexus] ericmc:
to be honest im not sure. Got the phone yesterday, unlocked then rooted it. Flashed kernel today and now it looks as if im screwed
[Samsung Galaxy Nexus] BusyPooping:
I'm not sure about it. The first time I used Franco's, I had slept for 8 hours and the phone had only gone down 1 percent. I had 20 hours that day and still at over 30%. It was my first day on my extended battery but since writing this post its already gone down 2%. What's the deal?

I will say its not completely Franco though. It did the same for lean kernel and I uses both cnd and aokp
[Samsung Galaxy Nexus] Wicked4u2c:
Nah, my "8 hour sleep test" as I like to call it has always been consistent with Francos kernel. If you see a couple posts before this one, I flashed 14.4 and my battery plummeted fast! I already flashed back to 14.2 and can tell a huge difference just by using the phone normally. I'll wait for future updates to see what happens, otherwise I am happy with previous versions of his kernel as I had no issues. You know what they say, "If it ain't broke, don't fix it". I know Franco has told me that it was more "reliable" but I never had any issues before with reliability. Plus, I would much rather it be unreliable and have great performance and awesome battery life then to be "reliable" and have bad battery life and poor performance.
[Samsung Galaxy Nexus] BusyPooping:
you need to flash a rom first with 4.0.3

i would follow the steps to restore to factory settings and then get one of the roms. I like aokp and Codename droid.

that will bump you up to 4.0.3 and then you can flash a new kernel on top of that

---------- Post added at 06:37 PM ---------- Previous post was at 06:33 PM ----------

hmm, i may get 14.2 and try that. what was unreliable about it?

people keep talking about 13.1 lol. maybe i can find that one.
[Samsung Galaxy Nexus] kichard:
Sorry for the huge sizes but I'm on my mobile....I like 14.4, Franco...
[Samsung Galaxy Nexus] mike216:
I got the best battery life on 14.1 could someone post a link to that one,thanks

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] BusyPooping:
do you know if thats the 1/26 build? I have 13.1, 14.2 and 14.4. I may have the 14.1 but i didnt rename that one yet.
[Samsung Galaxy Nexus] mike216:
I think it is the 26th build. I only lost 6% over 9 hours that's the best I've done

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] sway40:
I gotta say im getting the best battery life with 14.4 kernel and the 1/27 cm9 build. Usually im getting ok or average, or just bad period but im on 6hrs with minimal use and at 85% which by now I would've been around 60% following my same schedule bc im at work. I've been trying different settings and nothing has worked. Having hotplug enabled, max 920 min 350, and auto brightness is what im trying now with awesome results.

~ Sent from my Galaxy Nexus running Cm9~
[Samsung Galaxy Nexus] neverhappy:
I have been loading all the franco kernels here since the beginning. I'm no expert like some of you, but I'm learning. feature wise, I have seen no ill effects of any of these. What I have seen is totally unpredictable battery performance and I'm pretty confident that this is not a result of the kernels. I started with the factory defaults when I got this phone in Dec. I was getting 5-6hrs of battery life. I learned a few tricks from you guys on how to properly manage resources, but it only gained me an hour or two more. I began loading Franco's kernel, but battery performance was not that great, again. Then when I loaded 13.1, I accidentally let my battery run down all the way a couple of times and the next thing I know, I was seeing 20+ hrs of life on lite/moderate use. Hey great! I loaded 14.1 and battery life again was not too good, I waited for 14.4, and guess what, battery life was only 7-9hrs. I said to hell with it, I'm going back to 13.1 where my battery was incredible (by my standards). Guess what, It was bleeding the battery off in 6-8hrs. Yes I had google + and all the other stuff disabled. As a matter of fact, all settings were the same as the first time I used 13.1, but this time the battery life was back to crap. Today, I downloaded the batterycalibrate.apk charged my battery from 40% to 100% enabled the battery calibrate button (clears battery status/cal data or something of this nature). I'm now at about 5hrs with lite use and still at 89%. I have not got my head around how the GNEX deals with batteries, but for me, I am beginning to jump on the bandwagon that understanding the charging system is a key element in this process. I would not have believed it before this. Maybe I'm wrong and I have allot to still learn, but I think I'm finding a process that gets me back into high battery life. This write up is by no means speking to all the other issues, just battery life, as I have experienced it.
[Samsung Galaxy Nexus] _Gir_:
Please, paragraphs...they make reading well.

Glad you had a positive experience.
[Samsung Galaxy Nexus] BusyPooping:
So your currently on 13.1? I did the same moving back to 13.1 and saw my battery life was stlll. I just moved back to 14.4 and im working on calibrating my battery.

also, http://www.theidoctor.org/2012/01/old-kernels/

theres the link to some of the old kernels. Im working on moving the others. I did rename them a little just so i would know what versions they were and double check with 14.1.
[Samsung Galaxy Nexus] :
So no one knows what these wakelocks are? My phone is almost dead after 10 hours...
[Samsung Galaxy Nexus] BusyPooping:
i looked at it a little... im not sure either but wifi could be a culprit. did you wipe data and cache? I would wipe data and try it.

also, install betterbatterystats and cpu spy.
[Samsung Galaxy Nexus] :
Wipe data as in completely reset the rom and lose all my apps? I guess I could try this tomorrow when I don't need my phone. I did wipe both caches before installing 14.4. I had this issue with 13.x also.

I'll grab CPU spy though I have better battery stats installed. Then again maybe you weren't referring to me idk.
[Samsung Galaxy Nexus] TEK112:
No! Do not wipe data. Just wipe cache and Dalvik. If you want to be doubly sure wipe cache and Dalvik then install the kernel then wipe cache and Dalvik again then reboot system.
[Samsung Galaxy Nexus] Wicked4u2c:
14.1 and 14.2 both are awesome. I'm testing both now to see which one is best. If you need the files let me know, I have it. Including 13.1 which is also awesome
[Samsung Galaxy Nexus] BusyPooping:
oh, yea im dumb. I was talking to you and wasnt paying attention. haha, anyways, i just figure you can try installing one app at a time.

it seems like a lot of people are having shotty battery life while others are good. Me, im having horrible battery life. I may try going to stock and starting from there.

cpu spy will only tell you where your cpu is running, but maybe it will tell you if its never going into deep sleep.
[Samsung Galaxy Nexus] bobhinkle:
Running 14.4 for 12 hours. Still got 50% with medium use and battery has been calibrated. Click speeds turned down to 350-900 but still runs fast and solid
[Samsung Galaxy Nexus] mike216:
I agree with neverhappy on letting it drain does alot of help. I heard the rep from Google said that wiping battery stats doesn't matter but something must be different when letting it drain and recharge

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] hotshotz:
Just rooted my phone and flashed AOKP milestone 2 with franco's 14.4 nightly last night.

Today on my 2nd battery cycle has been horrendous. I also feel my battery usage screen isn't fully calibrated as it's been jumping up and down all day whenever i rebooted my phone.

A battery charge from 100% to 4% has lasted me only 3.5 hours, but i did put it through some heavy use since its the weekend. I had 3 hours of voice calls and 2 hours of screen time on with autobrightness. I ran cpuspy and noticed with the kernal my phone only hit deep sleep, 700 mhz, or 1200 mhz.

Are there any suggestions for a noob? i dont really feel comfortable playing with undervolting and overvolting settings at this point in time. people in this thread have been recommending 13.3 kernal. should i wipe and flash the 13.3 kernal? i figured i'd give it a couple of days before i do any changes.

I will try to put it through a couple of cycles and see how it fares on monday at work when i have extremely light use.
[Samsung Galaxy Nexus] wayneb02:
Do you have hot plug enabled?
[Samsung Galaxy Nexus] mike216:
That's prettier good numbers. 5 hours of screen on time not bad

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] hotshotz:
nope. hotplug disabled.
[Samsung Galaxy Nexus] dwallersv:
Man, this is one of those urban legends that will never die.

The battery status file does absolutely nothing in terms of battery longevity.

However, our batteries have a chip in them and are "smart" batteries. They do respond to being drained all the way and charged all the way.
[Samsung Galaxy Nexus] b33zu:
Got my first random reboot today with the kernel update 14.4 please fix asap thanks Franco.
[Samsung Galaxy Nexus] jbdan:
5 hrs screen on time where?
[Samsung Galaxy Nexus] mbh87:
how about a log? asking him to fix something, when he has no idea what to fix is next to impossible.
[Samsung Galaxy Nexus] luckylui:
So far so good w current realase. Running it with gummy 0.7.0! Great job on the apk too chief, copt it on the fly. :thumbup:

Sent from my Galaxy Nexus
[Samsung Galaxy Nexus] Droid316:
Bought your app Franco cause yours is the best one out there. no lag no stuttering no screen of death just smooth.thanks for all your hard work.
[Samsung Galaxy Nexus] datsyuk:
Does #10 feel slower than #9 to anyone else?
[Samsung Galaxy Nexus] grinch247:
not to me....flys!!!!
[Samsung Galaxy Nexus] datsyuk:
Idk the first time every once in a while the opening the app tray lags a bit and in #9 it didn't.
[Samsung Galaxy Nexus] firepacket:
I think there may be a bug in #10. At one point i observed the kernel taking 30% cpu and staying there until i turned the screen off then back on. (I use SeePU to see the kernel's cpu usage).

But it only happened once, I am not sure what I did to trigger it, and I havent noticed any other issues.
[Samsung Galaxy Nexus] Stardate Tab 10.1:
Bought your app, installation was a breeze. On AOKP rom, will report back after playing around with you work.

Transmitted from my Galaxy Tab 10.1 via Tapatalk
[Samsung Galaxy Nexus] claib:
Here is a real honest weekend use of kang cm 9 and this kernel
[Samsung Galaxy Nexus] bluemoon1221:
Before I use this kernel I wanted to ask how to get it on my phone.

I have a cdma galaxy nexus running cm9 kang rom.

Do I just download this to my SD card and flash?

Thanks in advanced
[Samsung Galaxy Nexus] claib:
Yea just wipe cache then dalvik cache then flash and enjoy a great kernal!
[Samsung Galaxy Nexus] dwallersv:
Francisco -- what are three chances of getting CIFS back in? Surely the battery drain you saw was some sort of bug...
[Samsung Galaxy Nexus] revolt1:
whats cifs?
[Samsung Galaxy Nexus] TEK112:
Subscribed. I have heard great things over at RootzWiki and im flashing now.
[Samsung Galaxy Nexus] BradleyUffner:
Cifs = ability to mount folders shared from windows. Sometimes it's also called Samba.
[Samsung Galaxy Nexus] notphilip:
After doing the camera open/close fix and disabling location services, this kernel with AOKP is fast and has excellent battery life. Is there anything that can be done about those two so they function properly?
[Samsung Galaxy Nexus] mike216:
How do you disable location services? I lost 60% over night due to android system draining it.I know about open and closings the camera but not the other thanks
[Samsung Galaxy Nexus] notphilip:
Settings-> Location Services (under personal) -> uncheck first and third boxes
[Samsung Galaxy Nexus] mike216:
Oh! Feel like an idiot, thanks bud. Could that be the cause of my insane battery drain over night
[Samsung Galaxy Nexus] TEK112:
Are you sure it is location services? The reason I ask is because android system would drain tons of battery, but after switching roms the usage went from the 50s to the teens for battery percentage.
[Samsung Galaxy Nexus] Stadsport:
Resetting my battery stats. I pretty much just charged to 100%, reset stats, and used my phone non-stop. Mostly web browsing, a little bit of IMO and Google Music. All on 3G (no wifi). Running nightly #10 with GummyNex.

Hope the pics don't look like butthole because of Tapatalk.
[Samsung Galaxy Nexus] mike216:
I don't really know. Trying to track down the cause now. Thanks
[Samsung Galaxy Nexus] BusyPooping:
Last time I let my phone drain, I ended up in a boot loop. That was yesterday with Franco's 14.4 kernel

I'm letting it happen again just to see if I can recreate it, and if not then yay.

Its a good thing I have been eraising everything all day

---------- Post added at 11:28 PM ---------- Previous post was at 10:55 PM ----------

you mean 13.1? Also, that does seem pretty amazing. I just killed my EXTENDED battery in about 4 hours. No voice calls. 3g/ 4g mostly.

3 hours of voice calls + what you have seems better than me.
[Samsung Galaxy Nexus] :
I'm draining my battery now to test. You were able to get out of the boot loop right ?
[Samsung Galaxy Nexus] BusyPooping:
uh, yea after a data wipe and all that mess.... since then, i have been going on a flashing spree!

Cops were not too happy about that
[Samsung Galaxy Nexus] :
just drained my battery and no boot loop :)

however, all this talk about bootloops since 14.1 kinda have me scared lol

going back to imoseyons for now but this is always going to end up my phone :)
[Samsung Galaxy Nexus] JFMFT:
I ended up at 28% battery left with 2 hours and 52 minutes of screen on time, and 14 hours off the charger. That's pretty typical usage for me. I also had 45 minutes of voice calls. Most of my screen on time was web browsing, words with friends, and google apps (Gmail, email, and calendar). I uploaded three 8min 1080p videos to YouTube today, too, though I was admittedly on Wi-Fi for 10 of the 14 hours.

I'm running Franco's 14.4 kernel. I think everything is fantastic. I couldn't hope for better battery life. Great job.

I didn't get a screen cap because my boyfriend stuck my phone on the charger when I wasn't looking and he didn't realize I didn't want to charge it.
[Samsung Galaxy Nexus] mike216:
Actually is was 14.1 and I just let my battery drain all the way down just now for the first time. I think its going to make a huge difference because it took a much longer time to charge. I've had my phone for around 3 weeks and this is the first full drain. Hopefully this will help me and it'll be something new also. Didn't think I had to drain to get great battery so will see

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] DirtySimpleClean:
just fyi, every time I get a new phone, no matter what percent the battery is when I turn it on, I use it till it dies, charge it to 100% without taking it off the charger and let it die one more more time to 0% and charge it to 100% and the battery functions at its best. Principle for me with new phones considering my Gnex is my 39th phone :)
[Samsung Galaxy Nexus] kichard:
hate to be a broken record but wth is this new boot animation in the change log?
[Samsung Galaxy Nexus] Natolx:
This is pure mythology... maybe when you're phones batteries were ni-cad. Lithium batteries are severely DAMAGED by being drained to 0%.

Edit: That's why laptops hibernate by default at ~4% instead of 1-2%, because of the risk of going to 0% and damaging the battery.
[Samsung Galaxy Nexus] KaLiBLeeK:
I'm getting the same type of usage. 36% battery left right now, 11hr 55min off the charger, 2hr 39min of which the screen was on.

I've been using franco's kernels since I picked up my Galaxy Nexus 2 weeks back, and haven't had any issues with any version of his kernel.

I'm not sure how many people are doing full wipes after running into problems to make sure that isn't the issue...but that was always my approach. I understand people get annoyed when they have to reinstall apps and set everything back up...but if it means you won't be greeted with wake locks, terrible battery life, etc...seems like it's worth it.
[Samsung Galaxy Nexus] BusyPooping:
no they are never severely damaged.

We should probably stop with all the battery talk, but it doesn't hurt to let it drain.
[Samsung Galaxy Nexus] Natolx:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
[Samsung Galaxy Nexus] TEK112:
I can attest from the research that I have done, lithium ion batteries do not take well to full power cycling. However, from the different methods out there to calibrate batteries properly it is sometimes necessary. A couple of power cycles will not damage the battery. However, it is recommended that you do not on a regular basis let the battery run down to zero. There are plenty of articles online to show that.
[Samsung Galaxy Nexus] dwallersv:
Untrue. LiIon batteries can be destroyed by overdischarge below 2.8V, or overcharge above 4.2V (certain topologies are dangerous and can explode and catch fire)

LiIon should never be discharged below 3.2V and is generally considered "empty" (0%) by most charging/monitoring algorithms at 3.6V. All modern phones are designed with these limitations in mind, and it is entirely safe to completely "empty" a battery to 0% capacity and device shutdown, but not for the reasons you seem to think.
[Samsung Galaxy Nexus] mikeacela:
can someone tell me how Franco's kernels r in comparison to imoseyon's? thx
[Samsung Galaxy Nexus] TEK112:
It is all subjective. People like them both equally. However, it depends on the device. No two phones are alike, even if they are the same make/model. Hardware manufacturing variances cause this. The best way is for you to try it yourself.
[Samsung Galaxy Nexus] BusyPooping:
I just flashed to the lean. 1.7.4 and 1.8.0 should be coming out later today.

I think I'm more for Franco's kernel, but I will see how it goes the next couple days
[Samsung Galaxy Nexus] Znomon:
http://db.tt/GBNlPcXn
[Samsung Galaxy Nexus] mike216:
Thanks alot are you sure this is .14.1? I certainly appreciate it. I got excellent sleep on this 14.1

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] Wicked4u2c:
Just doing some tests between 14.1 and 14.2 and it seems 14.1 by far is the best. I will conclude this tomorrow once I finalize some other tests.
[Samsung Galaxy Nexus] :
I don't understand how you guys are getting this kind of battery life. I can't even get a good 10 hours out of my phone even having reset data. I keep getting these modem_usb wakelocks that no one else seems to have any idea about.
[Samsung Galaxy Nexus] mike216:
On 14.1 now and going to see if I can get those crazy sleep stats tonight

BEST DAMN PHONE BECAUSE WE HAVE THE BEST DEVELOPERS! ROUND 2
[Samsung Galaxy Nexus] Wicked4u2c:
OK, so you want me to just turn data off? Let me know I'll post pics in the morning
[Samsung Galaxy Nexus] Syn Ack:
Battery life no good on the latest.
[Samsung Galaxy Nexus] jhalle2:
NTFS Read Support?

Has any one been able to read or write to/from an ntfs flash drive with this kernel? I have a galaxy nexus with gummy 7.0 and franco's 14.4 kernel and when I try plugging in a usb flash drive using an OTG usb cable I can not see any files on it. If I reformat to FAT32 everything works fine.

I am using "Stickmout G.S" from the market to automount the USB flash drive. I would really like to play some of my movies off of the flash drive that are bigger than 4gb.
[Samsung Galaxy Nexus] Wicked4u2c:
My Samsung laptop (3 months old) and all Macbook Pros have a smart battery calibration that is meant to drain the battery to 0 and then fully charge to 100%. This is to help the longevity of the battery as instructed in the user manual.
[Samsung Galaxy Nexus] Natolx:
I'm not going to argue about this anymore as this isn't the thread for it, keep fooling yourself thinking lithium batteries like being discharged to 0% and that user manuals trump the research that I posted.
[Samsung Galaxy Nexus] EyeOfTruth:
I didn't use my phone much today but still thought I would share Im running 14.4. I still think its impressive to get this kind of results on low usage.
[Samsung Galaxy Nexus] KillerVamp09:
can anyone post a link to the 14.1 release for me.
[Samsung Galaxy Nexus] momomok:
Personal backup:

http://dl.dropbox.com/u/23739553/3.0.16-franco.Kernel-nightly-14.1.zip
[Samsung Galaxy Nexus] BusyPooping:
http://www.theidoctor.org/2012/01/old-kernels/

Includes old lean kernels and Franco from 13.1 to now.
[Samsung Galaxy Nexus] anton2009:
Why is your phone awake >2x as much as the screen is on!? You'd be getting twice the time if your phone wasn't awake that often.
[Samsung Galaxy Nexus] holmes6:
Lithium-Ion Battery
[Samsung Galaxy Nexus] deidein:
Flashed 14.4, lost all 3g/4g connectivity. Flashed back to 14.3, still nothing. 14.1, nothing.

Factory resetting now and hoping for the best.

Nothing again after a wipe, apparently 14.4 destroyed my SIM card somehow or it just decided to lose 3g/4g then.

I am very depressed, I don't blame the kernel, but I don't have any other explanation.
[Samsung Galaxy Nexus] KillerVamp09:
Thanks for the link
[Samsung Galaxy Nexus] threepio:
crap this scares me. I was about to flash 14.4....
[Samsung Galaxy Nexus] Syn Ack:
14.4 so far is great. But has anyone else been getting the "green flash" when you wake your screen up from being turned off? Almost every time I turn my screen on it has a green screen for a quick second.
[Samsung Galaxy Nexus] BradleyUffner:
I'm not seeing that at all. Is it possible you have multiple things trying to call the color correction functions?