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Hi guys,
So for the past week or so, I've been noticing really bad battery drain on my GS2, and I think I have finally pinpointed the problem.
"BetterBatteryStats" has told me that there are 2 specific wakelocks running in the background, which prevent the phone from going to 'deep-sleep'. These are the "suspend" and "events/0" processes. They are on for hours, preventing the phone from going into a proper 'deep-sleep', and keeping it awake.
My question is, how would I stop these processes from running? I know for a fact that it is not such a common 'bug', because tons of people are getting >18 hours on their GS2 with moderate/heavy use, while I'm only getting about 10 with light/moderate usage.
So in short, why are the "suspend" and "events/0" processes running while the phone is supposed to be in sleep mode, and how do I stop them from running and draining battery?
Thanks everyone!
Well I don't have that problem so can't say. You should ask it on the BBS dedicated thread,
http://forum.xda-developers.com/showthread.php?t=1179809
Regards.
This is the famous "Android OS" bug, which happens only on SGS2. Search the forum and you'll see quite a few threads about it. There is no solution, but keeping wifi off when not in use or setting is to sleep when screen is off helps quite a bit.
aydc said:
This is the famous "Android OS" bug, which happens only on SGS2. Search the forum and you'll see quite a few threads about it. There is no solution, but keeping wifi off when not in use or setting is to sleep when screen is off helps quite a bit.
Click to expand...
Click to collapse
It's not only a bug on SGS2. I've been fighting this problem for quite a while on my Nook Color with CM7. Here's the thread I started.
hmm, I am having this problem as well, I'm used to my iphone, where i can use it all day and still remain above 50% meanwhile every time i pop the screen on my GS2 the percentage is down from last time. its horrible, very much considering going back, I love this phone, but this battery draining situation is out of control for me.. midnight -8:30 i lost 45 percent battery.. screen off..
penskyc said:
hmm, I am having this problem as well, I'm used to my iphone, where i can use it all day and still remain above 50% meanwhile every time i pop the screen on my GS2 the percentage is down from last time. its horrible, very much considering going back, I love this phone, but this battery draining situation is out of control for me.. midnight -8:30 i lost 45 percent battery.. screen off..
Click to expand...
Click to collapse
you might want to have a bit of a read. You never know, might find something
skimminstones said:
you might want to have a bit of a read. You never know, might find something
Click to expand...
Click to collapse
been reading all day and night most stuff lead to a dead end, currently looking at this:
http://code.google.com/p/android/is...c=ID Type Status Owner Summary Stars&id=16721
turning off google sync and stuff is not an option for me, I need push email, and contacts and google reader, whats a smart phone if i need to dumb it down
http://forum.xda-developers.com/showthread.php?t=1290020
skimminstones said:
http://forum.xda-developers.com/showthread.php?t=1290020
Click to expand...
Click to collapse
so basically there is no solution...
penskyc said:
so basically there is no solution...
Click to expand...
Click to collapse
well for me, installing the siyah 1.8 kernel has sorted it and my battery life is pretty damn good now.
Others will tell you its not fixed and the extra battery life im getting is a placebo. But all i know is i used to get 3 hours screen on time and lose 15-20% battery overnight. Now i lose 2% overnight and get 5-6 hours screen on time. If thats placebo then so be it.
skimminstones said:
well for me, installing the siyah 1.8 kernel has sorted it and my battery life is pretty damn good now.
Others will tell you its not fixed and the extra battery life im getting is a placebo. But all i know is i used to get 3 hours screen on time and lose 15-20% battery overnight. Now i lose 2% overnight and get 5-6 hours screen on time. If thats placebo then so be it.
Click to expand...
Click to collapse
hmm, ok, I will look into kernels, I am using an AT&T SGS2 so its a little different kernel wise. I have yet to find anything in my specific forums though.. just switched from an eperimental kernel to a stable, so maybe this will help
I think I just read somewhere in the Galaxy S2 forum that AOS isn't exactly solved on the .14 kernel (which siyah 1.8 is based on)..... it just merely not include suspend and events/0 into the Android OS count for the battery.....
Anyone can shed some light on this?
---------- Post added at 10:28 PM ---------- Previous post was at 10:23 PM ----------
ok, found it
http://forum.xda-developers.com/showthread.php?t=1290020
hope this would be useful
penskyc said:
hmm, ok, I will look into kernels, I am using an AT&T SGS2 so its a little different kernel wise. I have yet to find anything in my specific forums though.. just switched from an eperimental kernel to a stable, so maybe this will help
Click to expand...
Click to collapse
then yea, dont be installing any roms/kernals form this forum. You have a different phone.
skimminstones said:
then yea, dont be installing any roms/kernals form this forum. You have a different phone.
Click to expand...
Click to collapse
yup! I know, just figured since the phone was around longer it would have some more information on the suspend and events/0, which it did, thanks for your help!
skimminstones said:
well for me, installing the siyah 1.8 kernel has sorted it and my battery life is pretty damn good now.
Click to expand...
Click to collapse
is siyah 1.8 better for battery life compared to siyah 2.1 or the newer one?
I tried 2.1, but I still have high android OS.
Using bbs, I see that suspend and events/0 is still around 1 to 3 minutes each day.
I have turned off:
Accounts and sync > background data & auto-sync,
Privacy > back up my data,
Location and sec > use wireless networks.
Any other advice?
a1adin said:
is siyah 1.8 better for battery life compared to siyah 2.1 or the newer one?
I tried 2.1, but I still have high android OS.
Using bbs, I see that suspend and events/0 is still around 1 to 3 minutes each day.
I have turned off:
Accounts and sync > background data & auto-sync,
Privacy > back up my data,
Location and sec > use wireless networks.
Any other advice?
Click to expand...
Click to collapse
Use a 2.3.4/2.3.5 based ROM such as CheckROM HD or Hyperdroid-Androidmeda with Darknight-Siyah Kernel.
I get 3 days of use if i keep data off . With Data on and normal usage i get on average 0.7-1% drop per hour compared to 3-4% of 2.3.3 ROM.I think it's a combination of kernel and ROM that solves the problem.
Earlier CPU Spy used to show lots of time spent at 800Mhz which is what android OS bug does. Now i see it spending 1-2% time in 800Mhz and most of time in deep sleep.
thanks for the reply.
now I am using CRv3.1.1 with speedmod 18test3.
but it seems that from day to day, events/0 & suspend are getting bigger and bigger.
do you know why?
I upgraded to KI3 a long time ago, and froze the hubs + wifi sharing / wifi sharing manager (i never even used the hubs anyways), and what do you know; my battery can now easily last me a LONG time, after 16 hours it still always has AT LEAST 40% remaining, and that is with a few hours screen-on time, data sometimes on, wifi usually always on! I'm extremely happy now!
So in short, for those of you with bad battery life, the least you could do is upgrade to XXKI3 or XXKI4 (they're pretty much the same thing) firmware/kernel. Even completely stock without root/frozen apps is A LOT better than any other 2.3.4 / 2.3.3 ROMs.
CRv3.1.1 is already based on xxkj3, and I have already frozen most of samsung bloatware.
However, I have just found out that kernel is an important factor in high suspends and events/0.
Now I use the previous version: speedmod 17 test 1, and suspends & events/0 decrease a lot.
I've used ninphetamine 2.1.3+ and it used to drain my battery a fair bit. After having seen another user who said he was experiencing better battery life with ninphetamine 2.0.5. I flashed the older version and it turns out to be indeed better.
My idle drain rate is now 15-17mA using Battery Monitor widget.
So when put in picture. Drain rate is about 2% per hour with minimal usage. (Note 3g data was on)
Anyone else have a better kernel?
EDIT 1:
I've tried using SiyahKernel (KI3) and it seems that according to Battery Monitor widget the idle battery drain is 14-15ma. Seems to be much better. However, occasionally the touchscreen freezes and only the touch button works. But then again it could have been because I was using the KI3 kernel on a KH3 rom. Would report back after I finally get off my lazy ass and flash a KI3 rom
EDIT 2:
Got off my lazy ass finally. Flashed LeoMar 2.7.1 rom with SiyahKernel 1.7.8. Will report back after a while. Though I must say that for some reasons after the boot animation the phone turns black for quite a long time (1-4 Seconds) before the lockscreen appears. This did not happened with the default LeoMar 2.7.1 kernel. Will report back in 24 Hours.
http://forum.xda-developers.com/search.php?searchid=92694072&pp=25
Lennyz1988 said:
http://forum.xda-developers.com/search.php?searchid=92694072&pp=25
Click to expand...
Click to collapse
Thanks sherlock. I posted my findings and was asking if anyone else had better. If it the time of the month of you. Stay off this forum.
Personally I find it very difficult to make meaningful comparisons, especially at idle.
Battery Monitor Widget gives estimates and not actual current drain. See this thread for some discussion: http://forum.xda-developers.com/showthread.php?t=1056486 but basically it's either not in Samsung's battery driver or the app is not reading the information. So you are comparing estimates and the margin for error might be pretty large.
When you flash new kernels you also need to recalibrate the battery. That also affects your battery drain estimates. (I've had Battery Monitor Widget tell me my battery is going up when its unplugged, so go figure.)
Battery life at idle is affected by so many factors. Maybe your signal strength is better one day than another. Or you got more emails or did more syncing. Or one app just happen to glitch and have a very long wakelock. If you get battery drain, you should be checking your partial wakelocks with BetterBatteryStats. Did you get more partial wakelocks when you were running Nin 2.1.3? Is it the kernel's fault or did you just have a misbehaving app?
I like experimenting with different kernels too, so my point is don't expect miracles when somebody says Kernel X gives amazing battery life compared to Kernel Y. Personally I think they are all about the same at idle, and the big differences are in your settings and your usage. If you wipe your phone, don't add any Google or Exchange accounts, and don't sync or download anything, your battery will last 3 or 4 days on idle no matter what kernel you use.
Stock rooted KI3 (cf-root) is the best for battery life for me, i also have constat 3800+ quadrant score (with top of 4109 as my screenshot in leomar 2.7 rom thread).
Also i have the phone a lot, but really a lot less hot while gaming or stressing it.
KI3 stock kernel and SiyahKernel are at the moment the best in battery life. Anything else is running on older sources and drain more.
The best for me is SpeedMod! Smooth and long life battery. There is something you can't do (bootanimation oc uv bln) but simply great!
Inviato dal mio GT-I9100 usando Tapatalk
best results for me: stock kernel reflashed after rooting, for that stock rom.
Bar none the way to go.
Stock Rooted KI3 does look good, am yet to test it though
Hmm. So seems like you guys are experiencing deliciously good battery life with KI3 kernel. I shall try it and report back with some numbers.
try siyah kernel. one of the fastest growing kernels IMO
For me is Ninphetamine 2.1.3 and now i'm trying SiyahKernel 1.7.7
My question is.. between stock ki3 and SiyahKernel 1.7.7 the difference is really small (barely notice it) or big?
I tend to not flash to much kernels since the very small chance to corrupt the efs folder (even if ofc i have my backup), so if it's only small improvement, i stay on the stock ki3, if it improves a lot, i prolly try it
I've been using the siyah kernel v1.7.7 and I've been experiencing a great battery life. I didn't use the stock kernel for long to make a comparison but I sugest you give siyah at least a try, since you can always go back to stock if you don't like ir.
Updated 1st post with my new findings.
info5i2002 said:
Updated 1st post with my new findings.
Click to expand...
Click to collapse
batistaRom and ninp 2.0.5 great battery life for me...if you like i can post screenshots if anyone is using setcpu, depending on your kernel try and research in the kernel thread regarding frequencies that other users suggest and adjust yours accordingly...thats what i have done for mine and i could not be any more happier
Alright. I've finally got off my lazy ass and flashed a 2.3.5 rom (LeoMar if you must know) and am currently using siyah 1.7.8. Will report back within 24 hours after I've put the device through a day's use.
cf root KI3 stock kernel on RevolutionRom 2.7.1.
53 hours battery life 3 hours 19mins screen time wifi on 1/3 time, 4g on 2/3 time with facebook sync.
scorpion667 said:
cf root KI3 stock kernel on RevolutionRom 2.7.1.
53 hours battery life 3 hours 19mins screen time wifi on 1/3 time, 4g on 2/3 time with facebook sync.
Click to expand...
Click to collapse
Pix or it didn't happen
Hi, I posted earlier saying that siyah 1.7.7 gave me good battery life. I tried now the cf root v4.2 KI3 and I had better results. Well, I'm someone that don't play many games, but I surf a lot and download a lot of stuff on wifi. I don't care much for overclocking so I think I'm going to stay wth KI3 cf root. For me they're both great for battery life, and maybe the other ones I have not tried are great also (speedmod, ragemod, ninphetamine...)
I think what happens with kernels, and this happens also with custom ROMs (and everything really, brands, etc..) is there is a lot of fanaticism. People like to choose one ROM and kernel and stick to them. They start to defend the kernels they use convincing themselves they're the best no matter what. That is in my opinion the reason because this kind of discussion turns meaningless. Well not that meaningless, at least it gives an idea of the kernels people are using, at least we know speedmod, ragemod, siyah, nimph, are all great kernels.
I'm not criticizing anyone, in fact, I'm just another example of the people I described.
Hello guys. I have installed cyanogenmod9 with Siyah kernel on my galaxy s2 and I already got one problem. The battery drains very fast.. I got no 3g/wifi/gps/bluetooth activated, no live wallpapers, just 3 homescreens with minimum of widgets, no applications running in background and I set the max freq for the cpu to be 1000MHZ.. And it still drains very fast..
These are the exactly files i got on my phone:
Siyah-v3.0rc1-CWM
cm-9-20120330-ODIN-galaxys2.tar
Could you please help me fix this?
Cheers!
Install BetterBatteryStats, let the phone run for 8-10 hours (use it normally or let it run overnight; whenever you're seeing the drain basically). Then have a look at the BetterBatteryStats thread on here.
This will enable you to pin down any wakelocks which are chewing thru your CPU (If it is indeed wakelocks causing the drain). If necessary, you might be able to post some screenshots/info to that thread & maybe the guys who post there regularly can give you some help with it.
Edit to add - For starters, personally speaking, I'd update to the latest CM9 nightly while you're at it (09/04). They're always making little improvements/changes.
thank you very much! i have installed that program, now I will do how you said and then I will post some screenshots in the thread. Thanks!
No probs If you find you do have wakelocks/post to the BBS thread & you don't get a response after a day or so, post the details here & I'm sure people will be able to help.
GanTre said:
thank you very much! i have installed that program, now I will do how you said and then I will post some screenshots in the thread. Thanks!
Click to expand...
Click to collapse
GanTre said:
Hello guys. I have installed cyanogenmod9 with Siyah kernel on my galaxy s2 and I already got one problem. The battery drains very fast.. I got no 3g/wifi/gps/bluetooth activated, no live wallpapers, just 3 homescreens with minimum of widgets, no applications running in background and I set the max freq for the cpu to be 1000MHZ.. And it still drains very fast..
These are the exactly files i got on my phone:
Siyah-v3.0rc1-CWM
cm-9-20120330-ODIN-galaxys2.tar
Could you please help me fix this?
Cheers!
Click to expand...
Click to collapse
I would strongly suggest using Siyah v3.0.1Beta1
http://www.gokhanmoral.com/gm/
and dont usee that build of CM9 as that is the Resurrection edition. Download the latest CM9 from here:
http://download.cyanogenmod.com/?device=galaxys2
0904 is the latest.
make sure your wipe cache and dalvik cache.
put on cm9 first, then Siyah, then wipe, reboot.
GanTre said:
Hello guys. I have installed cyanogenmod9 with Siyah kernel on my galaxy s2 and I already got one problem. The battery drains very fast.. I got no 3g/wifi/gps/bluetooth activated, no live wallpapers, just 3 homescreens with minimum of widgets, no applications running in background and I set the max freq for the cpu to be 1000MHZ.. And it still drains very fast..
These are the exactly files i got on my phone:
Siyah-v3.0rc1-CWM
cm-9-20120330-ODIN-galaxys2.tar
Could you please help me fix this?
Cheers!
Click to expand...
Click to collapse
Did u follow all of the procedure to install cm9 ?
I'm quite sure u did something wrong, I managed to flash it right the noob way and updated to the latest build.
I'm getting amazing battery life with 3g/data/sync on all the time 1.5 to 2 days from 100 to 1%
Re-do it the right way and Cal the battery, hope that helps with getting started... if u still can't get a day from ur phone come back here and I'll help as much as possible... Good luck
Sent from my GT-I9100 using XDA
Thanks for every advice guys.
Mazroui can you present me a tutorial with the "noob way"? )
I will update the rom and kernel with those that toxic presented me.
I have installed 2 roms on the telephone now. How do I wipe the bad one(the first one)?
Ok, i installed the rom that toxic gived here and when i try to boot the second room the telefon freezes. I need to take the battery off...
I installed it in recover mode from external_sd, along with siyah kernel and gapps..
Could you tell me how to wipe it and install just one good rom on my phone?
Thanks for the suggestion, ill take a look at that thread as well.
GanTre said:
Thanks for every advice guys.
Mazroui can you present me a tutorial with the "noob way"? )
I will update the rom and kernel with those that toxic presented me.
Click to expand...
Click to collapse
its right there in their first post ^_^ , u can do it
Installed the cyanogenmod update that toxic gaved me and the kernel.. the battery still drains fast..
GanTre said:
Installed the cyanogenmod update that toxic gaved me and the kernel.. the battery still drains fast..
Click to expand...
Click to collapse
u cant compare it immediately...
please go ahead with a calibration of the batt and after recharging once/twice compare the battery usage with ur current bad usage
make sure u cancel the useless options that suck up the battery, there's a thread regarding this as well, it helps trust me...
Which is exactly why I gave you a simple (possible) solution in the first instance.
Which you were obviously too impatient to try given it involved installing an app, letting it run for half a day or so then reading a thread on here/posting some info to that thread to get some answers.
Installing a new rom was overkill. If you weren't prepared to go down the BBS path with your existing setup, you only needed to flash the latest CM9 nightly, do a clear cache/Dalvik & again let it go for a day or so to see if that fixed things. And then you could have done the BBS thing with the latest CM9 nightly installed if necessary.
believe me i didnt want to install a second rom.. i just wanted to replace the old one..
i will do the thing with batterystats and then i will revive this thread and tell you the "news".
Thanks for everything.
no wakelock overnight. the battery dropped just 1 percent.. i am using it for 20 mins. 3 sms, 3 mins of talking and 3 mins of wireless. in 20 mins the battery dropped from 99 to 95 now.
OK looks normal/ similar to my usage in that amount of time... keep on testing, good luck
Sent from my GT-I9100 using XDA
I installed the cm7 stable version.. The phone still doesnt flash when i receive a message(sms). Isnt there a fix for this? Is so annoying!
GanTre said:
I installed the cm7 stable version.. The phone still doesnt flash when i receive a message(sms). Isnt there a fix for this? Is so annoying!
Click to expand...
Click to collapse
Are you talking about some kind of notification when you receive a message? This phone doesn't have a notification LED. So you need either BLN + a kernel that supports it, or install the NoLED app. Either one will affect your battery performance though.
When you receive a message, on every phone, the screen wakes up. Mine doesnt, do you understand what i am saying?
Thanks for the reply!
GanTre said:
When you receive a message, on every phone, the screen wakes up. Mine doesnt, do you understand what i am saying?
Thanks for the reply!
Click to expand...
Click to collapse
And I was saying that this phone does not do this by default, out of the box, unless you do one of the two things I mentioned above.
Do YOU understand what I'M saying?
I have been Using my SGS2 on cm7 since the day i bought it some days back.. The thing is i dont get good battery life. Battery Monitor Widget Pro shows -10mA to -90mA and sometimes upto -150mA drain in stand by. Last night i lost 13% in 8 hours. I recharged it to 100% the battery drain was about -2mA for 4-5 hours then suddenly it increased to 50mA and now its -91mA since 2 hours continously. I am on Siyah Kernel. Smartassv2 kernel. Cpu underclocked to 1ghz. i Also have autokiller. brightness to lowest. And manually kill apps. I got the phone coz the my old iphone was not lasting a day but it did last 5-6 hours of screen on time. SGS2 doesnt give me over 3 hours of screen on time. NO WIFI. Just 2g data. Whatsapp every 10min. 4-5 min gaming a hour.
So you read the ten million battery faq posts and make a start with better battery stats thread and app .
TEST with a stock GB rom .
jje
JJEgan said:
So you read the ten million battery faq posts and make a start with better battery stats thread and app .
TEST with a stock GB rom .
jje
Click to expand...
Click to collapse
I didnt understand the first sentence . AND Yeah i am going to try the stock rom today. I even tried miui v4 as well as gingerbread version of miui but got no improvement.
Make sure you give it about 3 battery cycles download CPU Spy to see if your phone is going into deep sleep
Casterina said:
Make sure you give it about 3 battery cycles download CPU Spy to see if your phone is going into deep sleep
Click to expand...
Click to collapse
I think 15-16 charge cycles have completed. I flashing stock rom and then trying cm7 again or should i try miui?
MIUI GB is better in battery life comparing to ICS V4,
use with siyah kernel, with app Voltage control undervolt 25v each, noop + coservative, 200-1000mhz
giving good result.
zaheedahmed said:
MIUI GB is better in battery life comparing to ICS V4,
use with siyah kernel, with app Voltage control undervolt 25v each, noop + coservative, 200-1000mhz
giving good result.
Click to expand...
Click to collapse
i got stuck in bootloop after restoring from odin = lol. i will try what u told. Thank you !!
zarz123 said:
I didnt understand the first sentence .
It means all you need and all you ask is posted already and your post is now number ten thousand and 1 asking the same question .
Pity we have no FAQS or GUIDES
jje
Click to expand...
Click to collapse
Try pulling your battery out, leaving it 30s and putting it back in, I know that has helped some people get rid of some pretty annoying wakelocks(if wake locks are you problem), it has worked for me in the past
katestar said:
Try pulling your battery out, leaving it 30s and putting it back in, I know that has helped some people get rid of some pretty annoying wakelocks(if wake locks are you problem), it has worked for me in the past
Click to expand...
Click to collapse
i will try it
BTW i went back to stock GB rom. Get 1.5%/h drain without any apps installed.With apps i am gonna be so screwed. :|
zarz123 said:
i got stuck in bootloop after restoring from odin = lol. i will try what u told. Thank you !!
Click to expand...
Click to collapse
Do you flash with CWM?
It's much easier, yeah with moderate usage I could get 1.5/2 days battery life with stock battery It's a very good ROM, although the MIUI team have stopped developing due to the development of MIUI V4
Casterina said:
Do you flash with CWM?
It's much easier, yeah with moderate usage I could get 1.5/2 days battery life with stock battery It's a very good ROM, although the MIUI team have stopped developing due to the development of MIUI V4
Click to expand...
Click to collapse
U talking about miui gingerbread version right?There are so many miui roms. Makes it difficult to make out whats whAT.. i flashed the stock rom with odin. The other roms i flash via CWM itself..
zarz123 said:
U talking about miui gingerbread version right?There are so many miui roms. Makes it difficult to make out whats whAT.. i flashed the stock rom with odin. The other roms i flash via CWM itself..
Click to expand...
Click to collapse
basicaly all MIUI roms are same, some developers in XDA are just ported with some tweeks and modifications.
some of them are:
http://forum.xda-developers.com/showthread.php?t=1352386
http://forum.xda-developers.com/showthread.php?t=1502664
The country of Origin of the MIUI is China and released in Chinese language, but there are variouse fan sites who translate the ROM into their language and port with great support. www.miuiandroid.com is famouse among them in english language.
I am currently using MIUI GB ROM and really enjoying it
check it out
i flashed ressurection rom ics. i got 3% drain in 7 hours overnight which is quite good but now again loosing -57mA in standby ie around 3 or so %/h... BetterBatterystats under partial wakelocks shows AudioOut_1 for 3m 17s , RILJ for 1m 9s and few other things ..Kernel Wakelock is (0s)Cntc/wc/ec/)1/1/1 100%.
zarz123 said:
I didnt understand the first sentence . AND Yeah i am going to try the stock rom today. I even tried miui v4 as well as gingerbread version of miui but got no improvement.
Click to expand...
Click to collapse
JJEgan said:
So you read the ten million battery faq posts and make a start with better battery stats thread and app .
TEST with a stock GB rom .
jje
Click to expand...
Click to collapse
jje means to say thire r millions of posts on batt prblm y r u starting another wivout reading the already posted prblms ......anyways go thru the the batt drain(find in search)cause ull get an idea were ur wrong....i dont think cm9 gives good batt life but depends on wat no of apps u got..try the stock gb first..an there is no garanty tht the uv,oc or tweaks give u a marvelous batt life.....cheeeerz
so i went back to stock rom. Wiped out the storage. Reseted the phone. Installed nothing. Still i get -57mA battery drain that is almost 5-6% per hour in standby. I have searched like anything. I just cant seem to find anything. My android os usage is 70%. And the battery info shows phone awake for maximum time. i even undervolted on siyah kernel. Didnot use data at all but it shows no difference. Stock,Miui,Resurrection,cm7 no difference. I simply cant get over 4 hours of screen time and phone looses 20-25% over night with data disabled and no apps installed. Am seriously loosing faith on android.
Hello guys I am just new here and I am not able to post on the developer forums and only able to post here so here goes.
I am running my SGS2 on CM9 kernel and the Rootbox ICS 1.7 by bajee11 (many mnay thanks to him for the brilliant rom). But when I upgraded to 1.7 from 1.6 I noticed that the battery drains (well I would say) quite quickly when compared to 1.7. Mainly mobile standby and cell standby are showing up at 19% and 18% respectively. Is anyone else having this issue?
Also if anyone can help, when will I be able to post in the developer forums? Is it normally after 10posts?
jay1987 said:
Hello guys I am just new here and I am not able to post on the developer forums and only able to post here so here goes.
I am running my SGS2 on CM9 kernel and the Rootbox ICS 1.7 by bajee11 (many mnay thanks to him for the brilliant rom). But when I upgraded to 1.7 from 1.6 I noticed that the battery drains (well I would say) quite quickly when compared to 1.7. Mainly mobile standby and cell standby are showing up at 19% and 18% respectively. Is anyone else having this issue?
Also if anyone can help, when will I be able to post in the developer forums? Is it normally after 10posts?
Click to expand...
Click to collapse
for the time being just allow the rom and the kernel to settle down. and check for the issue after a cpl of recharge.
yes u have the 10post barrier for now hence unable to post on the rom devloper thread, once u get past the same u will be automatically eligible to post there
Sun90 said:
for the time being just allow the rom and the kernel to settle down. and check for the issue after a cpl of recharge.
yes u have the 10post barrier for now hence unable to post on the rom devloper thread, once u get past the same u will be automatically eligible to post there
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Thx very much m8....ill see how it goes.....I have also underclocked my processor to see if tht make a difference...hopefully that helps!!!!
jay1987 said:
Thx very much m8....ill see how it goes.....I have also underclocked my processor to see if tht make a difference...hopefully that helps!!!!
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well i would suggest not to overclock or underclock the cpu, just leave it stock value, since the same might affect ur phone
jay1987 said:
Hello guys I am just new here and I am not able to post on the developer forums and only able to post here so here goes.
I am running my SGS2 on CM9 kernel and the Rootbox ICS 1.7 by bajee11 (many mnay thanks to him for the brilliant rom). But when I upgraded to 1.7 from 1.6 I noticed that the battery drains (well I would say) quite quickly when compared to 1.7. Mainly mobile standby and cell standby are showing up at 19% and 18% respectively. Is anyone else having this issue?
Also if anyone can help, when will I be able to post in the developer forums? Is it normally after 10posts?
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What kernel have you selected to use with the rom? And I would suggest that you get better battery stats from xda applications section and cpu spy from the play store to see the wakelocks and if your device is deep sleeping
Sent from my GT-I9100 using xda premium
kilometers4 said:
What kernel have you selected to use with the rom? And I would suggest that you get better battery stats from xda applications section and cpu spy from the play store to see the wakelocks and if your device is deep sleeping
Sent from my GT-I9100 using xda premium
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Click to collapse
I am using the CM9 kernel and using the TW launcher on it...I have also underclocked it to 800MHz with ondemand using NoFrills CPU control...do u think tat would affect that battery life....I see that you are using the same ROM with Dark Knight Kernel??? Please can you tell me how good is ur battery life....because I thnk its tha nature of my kernel so will need to try reflashing it with a better kernel.....
And just downloaded CPU spy and it seems 60% time it is in deepsleep, 21% on 200MHz, 5% on 500MHz, 8% on 800MHz nd 4% on 1200MHz...so i guess that is the reason why.....can you advise me as to how I can get that reduced????