Develop Bugs

[Q] Anyone working on GingerSense SBC Kernel?

I know that one doesn't currently exist, but does anybody know if anyone's actually working on one? Given the age of the EVO 4G, I worry that developers no longer care enough to actually work on this, but it's something I desperately want. I haven't seen anybody talking about it in a while.
If nobody's working on one, I may start looking into how hard it'd be to develop my own (I have some comp-sci background, but being that it's limited, I know it'd be easier for someone else), or offer an incentive to some developers...
And before you say "AOSP!" I say "I love MikG!" I get fantastic battery life as it is, but it would be better if the battery was completely charged when I pull it off the charger. I'll switch to AOSP when ICS is stable on the EVO 4G (because we all know HTC is never going to push an ICS update for the EVO 4G, as sad as it is to say that).
MikG 2.60 w/Freedom kernel (less aggressive) and stock capacity battery:
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(In a regular work day, I'll have 68% remaining after 10 hours, but that's because I have crappy reception in my office.)

Wouldn't get your hopes up man. SBC is really the main thing I wanted out of the GB sense kernel (along with HAVS and such) but none of the developers are really updating the kernels anymore. Lithid has done an amazing job with his Freedom kernel but he went to the iPhone I think and dropped development before implementing SBC.
I already get terrible battery life on Sense roms (due to a random bug causing extremely high display usage all the time that kills the battery, very frustrating) but maybe SBC will give me a few more hours enough to use it as a daily. Until them, I'm stuck using CM7 which I wasn't a big fan of before but after having to use it so long I have found ways to make it exactly how I want, along with giving me great battery life.

With ICS coming out, I doubt there'll be much more dev work on GB kernels
Swyped From The Hippest MIUI'd phone Using XDA Premium

HTC made the kernel not play nice with SBC the one SBC kernel that was out had lots of issues and was pulled. There was a code conflict in the core of the kernel source causing all kinds of failures with hardware, they went away after flashing a new kernel, but touch screen was whacked out audio bugged and there were lots of FC as the SBC code basically broke the kernel's functionality, so blame HTC not the devs it was like HTC intentionally built the kernel to block SBC. There are kernels out with AVS and I think one with HAVS but I'm not 100% sure on the HAVS since I've been working on AOSP the last few weeks and have taken a break from sense.
sent from my ics'd out EViL4G

Many valid points... thanks everyone for responding. I didn't realize that there were issues with HTC's kernel as it was (last I had heard, the newest GB kernel from HTC had a form of SBC built in, and after HTC released the code, it seemed as though nobody was working on the kernels anymore). I'll have to contemplate thoroughly on what to do... if the developers have looked into it, I doubt I'd be able to make progress where they were unable to do so.
ncfastls1, have you tried MikG at all? I know hardware varies, but it is without question the best performing Sense ROM I've had, in smoothness, functionality (Sense 2.1 + 3.0), and battery life. Using Freedom's more aggressively undervolting kernel gave me camera issues (phone would freeze and reboot), but as you can see from the pic in my first post, I've gotten some incredible battery life from MikG with the less aggressive kernel. I can also provide spreadsheets with my battery life every day that I've had it (I'm a statistician by profession, so I test everything I can collect data on just to make sure I'm getting the best performance from my phone). [Note: When I updated to 2.61, I simultaneously updated a bunch of apps, and my battery life fell off the Grand Canyon, so I restored to 2.60 and am trying to isolate the source of the drain by progressively updating apps before updating to 2.61.] CM7 is great - I have it on my Nook and am anxious to see CM9 - but I do have an affinity for Sense.
Thanks again, everyone!
P.S. I was also heartbroken to see that lithid went over to crApple. He had tried throwing together an SBC kernel (it's buried deep in his kernel thread), but since I didn't see a single person report about its functionality, I was reluctant to try it...

Lithid was working on it for a very long time. He has since gone to the iOS. Wish he wouldnt released his v 0.95 kernel though before he did.
I get 2+ days (max so far 3.5 days) with normal use and Tommy's classic paired with aggressive freedom.

Rxpert said:
I get 2+ days (max so far 3.5 days) with normal use and Tommy's classic paired with aggressive freedom.
Click to expand...
Click to collapse
Can you give more details on that, please? And, if possible, links to both.
Thanks

[Q] Battery Rom Question.

Hellos guys I would like to know wich Rom out there has the best battery life.??? Im running the latest juggernaut..thanks.

I would say dewizzled
Sent from my SGH-T989 using xda premium

I'm not sure if you can just say best battery life is XXX as everyone's usage patterns are different and different aspects drain the battery faster than others. I have found Dewizzed to give me the best life out of all of the ones I've tried, but I don't get near the time that many post in that thread. The one difference is that when they post their usage stats I never see "Voice Calls" in the top half of the apps using battery, whereas if I look at mine right now Voice calls is #1 at 53% and Display is #2 at 18%. I use my phone heavily as a phone during the workweek, others use it as a media device, others gaming...you get the idea.
Try Dewizzed and try a couple of others. It's easy to flash and then restore or go back to one that works better for you (plus the geek in me thinkgs that is fun too).

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How about NO ROM? I am using stock right now, but using Faux #009 mainstream Kernel. I was running Jugg 4.1 before, but went back to stock after having some issues with texts not going through.

Im going to try some of the roms.. I
Thanks guys

ghawton said:
I'm not sure if you can just say best battery life is XXX as everyone's usage patterns are different and different aspects drain the battery faster than others. I have found Dewizzed to give me the best life out of all of the ones I've tried, but I don't get near the time that many post in that thread. The one difference is that when they post their usage stats I never see "Voice Calls" in the top half of the apps using battery, whereas if I look at mine right now Voice calls is #1 at 53% and Display is #2 at 18%. I use my phone heavily as a phone during the workweek, others use it as a media device, others gaming...you get the idea.
Try Dewizzed and try a couple of others. It's easy to flash and then restore or go back to one that works better for you (plus the geek in me thinkgs that is fun too).
Click to expand...
Click to collapse
forum.xda-developers.com/showpost.php?p=21919081&postcount=1384
Voice call!
Sent from my SGH-T989 using xda premium

grenademasta said:
How about NO ROM? I am using stock right now, but using Faux #009 mainstream Kernel. I was running Jugg 4.1 before, but went back to stock after having some issues with texts not going through.
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Click to collapse
WOW! thats pretty impressive. what's your time on display?

I was wondering the same thing. But more along the lines of which rom kernel combo people are running. Now to hijack original posters thread, but if people could also put what kernel they are running too. The best I ever got was BeastMod with Synergy, but once he left the building I don't feel like any of the other ones have been as good.

grenademasta said:
How about NO ROM? I am using stock right now, but using Faux #009 mainstream Kernel. I was running Jugg 4.1 before, but went back to stock after having some issues with texts not going through.
Click to expand...
Click to collapse
That tells us little, click on display and show us how much time the display has actually been on

From my experience, it is not necessarily the rom that effects the battery life as much as the kernel does. Every rom I have installed I end up changing the kernel to synergy 10 and see a big increase in battery life.
Sent from my SGH-T989 using xda premium

DensoYamaha41 said:
From my experience, it is not necessarily the rom that effects the battery life as much as the kernel does. Every rom I have installed I end up changing the kernel to synergy 10 and see a big increase in battery life.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
+1 on the syngery kernel.

+1 on Synergy kernel
Juggernaut was OK for battery life, much better than stock, but I couldn't be any happier than with BeastMOD and synergy kernel.

hoopdaddy6 said:
+1 on Synergy kernel
Juggernaut was OK for battery life, much better than stock, but I couldn't be any happier than with BeastMOD and synergy kernel.
Click to expand...
Click to collapse
Display time on and brightness? From the graph it doesn't seem like you used the phone for too much and we don't know how bright your screen was, time on voice calls and any other applications. Why is it that people don't know how to post battery life correctly? Your wifi was on most of the time and wifi uses less battery than data connectivity plus we don't know the type of reception you were receiving. Edge consumes less battery than 3G. These are all factors that need to be taken into consideration to draw a clear conclusion on your battery life.
Sent from my SGH-T989 using Tapatalk

Fail double post -----ignore-----

ROMs that are best on battery usage - these are my findings

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http://shayessays.com/2012/03/08/te...st-popular-roms-for-the-samsung-galaxy-nexus/
please leave a comment if you have anything to say!

Why not test all of them?

Nice...thanks. I take it you have the Verizon one? I prefer foxhound for battery.
Sent from my Galaxy Nexus

Some thoughts:
Given that the "Android OS" report in battery usage was apparently subject to a major, but simple, calculation bug until 4.0.4, I have doubts about its validity as a measure in this kind of test. Are all of these ROMs using the 4.0.3 code as base, or are some backporting pieces of 4.0.4? Furthermore, how would you know if any devs sticking to the 4.0.3 source haven't gone in and fixed the bug themselves once it became known? If I had to guess just by looking at this, Gummynex, Liquid, and Revolution have this bug patched, the others do not. The similarity within and between these two groups is just too striking.
Even putting that aside, I'm not sure I see the sense in measuring anything but total drain, assuming your methodology filters out any variance due to usage habits (screen on, apps running, signal strength). If the phone is left to sleep and nothing else is running, shouldn't all the drain show the nature of that ROM?
Also, perhaps you can elaborate more on why not keeping the time constant seemed like an okay concession, because when the total drain only varies by 1 or 2% over 6-7 hours, I'm not sure how almost a full hour's difference across tests can be considered insignificant.
For example, compare AOKP vs Redemption in your results, redemption ends up looking marginally better. AOKP reads 4% over 7 hours, or ~.57% per hour. Without actually crunching all the numbers, 20 minutes of variance looks like enough to be significantly signficant if all we get for sigfigs is 1% increments.
With all that in mind, my general impression is that most of these roms are roughly the same for battery. I don't know if there is a feasible option to either get a full mAh reading, or to have program log the exact time a certain % level is reached, but both would give much more valuable data, I think.
Also, one of my first thoughts after looking at this was what kernels are these roms all using? It would be nice to see it included; are the devs using the stock AOSP kernels, stock with a few of their own patches, bundling their favorite custom kernel, or even developing their ROM with a specific kernel in mind? I know that liquid is bundled with leankernel, for example. It begs questions: Is there a good kernel complimenting a well designed ROM? A great kernel making up for a crappy ROM? An extraordinary ROM that shines despite a buggy kernel? (All example for conjecture). Hard to say without kernel as a constant across tests.
To summarize, my main critiques of your methodology are:
-Don't see the merits of using Android OS drain vs the total drain.
-Would like to see a standard time used in tests, or if possible, measure the exact time required for x% of drain, or mAh remaining after x hours.
-Would like to see a larger test range to establish statistical significance.
-Would like to see kernel as a constant, since anyone can flash their own custom kernel, and packaging one in a ROM may be a good move, but doesn't say much about the rom itself.
Those are my thoughts on the methodology and the results presented, but I would also like to express that it's very refreshing to see someone actually going to lengths to compile thought-out data on battery life, instead of the dreaded "wow great battery life awesome ROM" posts that litter the ROM threads.
Edit: As far as a more precise reading goes, if you run better battery stats, Menu->More->History->Menu->View Serie gives quick access to a log that I think would be helpful here. I'm not sure what triggers the program to write to this log, but it's pretty well populated regardless. So you could decide you want to drain the battery to x%, and just read off the first time the log shows that level.

[Q] Crazy Battery Loss on CM9... help?

I recently updated my E4GT to CyanogenMod 9 alpha 5 and my battery has been dying insanely fast. I noticed immediate drops in battery % at random times, see attached image.
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I disabled notification lights to see if that would help, but no dice... any help?

Well it's obvious that you're doing it wrong
Sent from my SPH-D710 using Tapatalk 2

Hey let me talk to you for a sec... dont take this the wrong way but are you the only one in the forum that does not know all ICS roms have terrible battery life until we get kernel source.....Bad battery life is notated on like every thread in ICS.
Its ok man just messing with you but yea until kernel source comes out either deal with it or go back to GB... Oh yea and try and polish up on your ICS knowledge for the future

playya said:
Hey let me talk to you for a sec... dont take this the wrong way but are you the only one in the forum that does not know all ICS roms have terrible battery life until we get kernel source.....Bad battery life is notated on like every thread in ICS.
Its ok man just messing with you but yea until kernel source comes out either deal with it or go back to GB... Oh yea and try and polish up on your ICS knowledge for the future
Click to expand...
Click to collapse
I dont know about all that I am on CM9 as well and I get the same life maybe a little less than I did on the gingerbread roms. I easily make it through a day with heavy use with battery life to spare. It must be a rouge app.

rbtrucking said:
I dont know about all that I am on CM9 as well and I get the same life maybe a little less than I did on the gingerbread roms. I easily make it through a day with heavy use with battery life to spare. It must be a rouge app.
Click to expand...
Click to collapse
Hey if you are making it through the day then what the heck are you complaining about and with heavy use.... Come on man! Get Better Battery Stats and figure it out...
I thought you had real issues...lol

I know about the battery issues, but I have never seen a drop like in the screenshot I posted. I don't know if you looked at it, but I have not read of a reason for this to occur. It drops somewhere around 30% immediately

Sholland91 said:
I know about the battery issues, but I have never seen a drop like in the screenshot I posted. I don't know if you looked at it, but I have not read of a reason for this to occur. It drops somewhere around 30% immediately
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Simple man the kernel sucks life out of your phone when custom kernels start flowing so will your battery life.
Sent from my SPH-D710 using Tapatalk

I solved the problem.
I have three batteries.

Sorry to bring up a dead topic but since these issues are still rampant and there is no "official" fix thread that I know of, I thought I'd post my findings and fixes that I have come acrossed (I take no credit for any of these methods) after taking these steps, my ics battery issues are gone.
Backup anything you don't want to lose.
Do a factory reset from the privacy settings.
Format internal SD AND external SD under storage settings.
Change wifi advanced setting "keep wifi on during sleep" to never.
Turn off display battery percentage under display settings.
That's it! One or more of these methods fixed my issues, I was having next to all of the problems people are having. Including the random massive battery drops mentioned in op.

Also your notification light and battery light could drain as well.
sent from my BAD A$$ Epic touch

Best battery rom

From what I understand the best battery rom is base off of gingerbread. If so what is it and can I still get it on my phone? If it's ics what is it? I been on pa jb Rom and love it but really need my phone to last more than 6-8hrs
Sent from my SPH-D710 using XDA

teejay585 said:
From what I understand the best battery rom is base off of gingerbread. If so what is it and can I still get it on my phone? If it's ics what is it? I been on pa jb Rom and love it but really need my phone to last more than 6-8hrs
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
2.3.6 GB Rom ----> http://forum.xda-developers.com/showthread.php?t=1332837
4.0.4 ICS -----> http://forum.xda-developers.com/showthread.php?t=1527041
(Supposed to be one of the better ones from what i've seen) Quick search for this should yield results due to it being discussed quite a bit in the recent days. Again YMMV as for ANY Rom. (All depends on use, things like that) I'm a casual user for just texting and occasion FB checks.. I can get 10 hours or so with hour screen on different roms.. I run data off with screen off and a few other things... (auto sync to a minimum) things like that.. haven't tested PA lately to see what i can pull on it.. I may this evening. Read a few post on the ones that interest you, i'm sure someone has mentioned battery. I hope this helps some..

Recalked is good
But in my opinion good battery life can be achieved on a lot of roms with the right kernel ,scripts, etc
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That is a older ff18 build..new agat kernel & updated scripts
-TeaM VeNuM Like A Boss

MiguelHogue said:
Recalked is good
But in my opinion good battery life can be achieved on a lot of roms with the right kernel ,scripts, etc
That is a older ff18 build..new agat kernel & updated scripts
-TeaM VeNuM Like A Boss
Click to expand...
Click to collapse
I agree with ya. It's all trial and error.

MiguelHogue said:
Recalked is good
But in my opinion good battery life can be achieved on a lot of roms with the right kernel ,scripts, etc
That is a older ff18 build..new agat kernel & updated scripts
-TeaM VeNuM Like A Boss
Click to expand...
Click to collapse
What script are you using by the way?

Nyckrs said:
What script are you using by the way?
Click to expand...
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Placebo http://forum.xda-developers.com/showthread.php?t=1748208
-TeaM VeNuM Like A Boss

I'm getting good results with blazer rom 1.5..
Sent from my hand

Stock battery Aosp ICS rom. No scripts but undervolted. Normal brightness. This after a regular day with lots of screen time so probably 15 hours phone on total with minimal calls

Recalk is good, as areboth of calkulins roms. Same with phantomhackers blazer roms. The gb builds are better if you are having ics battery issues, but there are a few fixes for that as well. No known "cure all" though if I am not mistaken.

Tersus Satus FI27 I don't have pics of my phone but it didn't need a charge for two days, I am on my second charge now. My battery needed to be charged within 6-10 hours even if it wasn't used except for a few short phone calls. the two day charge was used for texting, emails, calls and browsing moderately over 3g. The main benefit is the battery is not losing much life when it sits unplugged and not being used if you forget to plug it in when sleeping like I did. I woke up and seen it thinking I was going SOL later but the battery had only gone down 1%.