yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] lokhor:
My battery hit 15% after ten hours today including 2.5 hours screen time and charging an extra 10% during the day.
[Galaxy S II Original Android Development] bungknees:
When flashing Rom or kernels it can put the battery stats all up the ****, I wouldn't worry till its been recharged then everything should balance out a bit.
[Galaxy S II Original Android Development] pacc:
My Battery Drain is higher than before, theres something wrong with k2-11.
[Galaxy S II Original Android Development] byobodybag:
Is there a significant change from .7 to .14? Curious about this one too.
[Galaxy S II Original Android Development] miisterlim:
Same for me too. Back to k2-5 again :p
[Galaxy S II Original Android Development] coolfire:
Guys, give it more time to settle down. :)

Sent from my SGSII
[Galaxy S II Original Android Development] crobat:
Not sure if its just me, but I'm feeling a marked improvement in the speed. Great kernel. Thanks for the good work! :)
[Galaxy S II Original Android Development] SupraN0va:
You should first reset cpu spy, these screen shots don't compare.
[Galaxy S II Original Android Development] dainesefreak:
Anyone else getting this??

I'm using K2-11 with the Intratech's KI3 Frankenstein ROM and when I double click the Home button from the pattern lock screen it launches Voice Talk. You can then exit out of Voice Talk and bypasses the pattern lock.

A mate has just tested this on his stock ROM and it doesn't bypass.
[Galaxy S II Original Android Development] 2dorr:
I have KI4 stock with K2-11 and the best battery ever.
[Galaxy S II Original Android Development] planetf1:
I don't get that on Frankenstein KJ1 with K2-11 -- nothing happens when I double click the home button on pattern lock screen.

Once unlocked with the pattern swipe, double home correctly brings up voice talk
[Galaxy S II Original Android Development] Mustoura:
Very annoying i removed it with root explorer nothing to do with k2 i had it on other kernels as well .

Sent from my GT-I9100
[Galaxy S II Original Android Development] pedrolopes665:
It doesnt happens with me.

Frankenstein ki8 - speedmod k2-11 - Jkay 12.1
[Galaxy S II Original Android Development] dainesefreak:
Hmm, just me then. I might try a wipe and re-flash, thanks.
[Galaxy S II Original Android Development] pacc:
Wow new update, hope this fixes performance/battery issues.

Testing....
[Galaxy S II Original Android Development] mikengtw:
Thanks for Hardcore.. your K2-11 does work on my SG2 ..big thanks

to you.
[Galaxy S II Original Android Development] oyebto:
wow hardcore your updates are so frequent. thanks so much for contributing! =)
[Galaxy S II Original Android Development] hardcore:
K2-12:

- Changed some compiler optimization settings

K2-12 is smoother than K2-11.
[Galaxy S II Original Android Development] KennyLegend:
Would this improve battery life? K2-11 was a step backwards for me in terms of battery life so I went back to k2-10.
[Galaxy S II Original Android Development] eranyanay:
Hello hardcore,

I just wanted to say how much I appreciate your work, its an amazing kernel you're developing.

I hope you'll pay attention to this post and check this link:

http://xdaforums.com/showpost.php?p=18687498&postcount=40

Seems like a good improvment to your kernel.

Thanks
[Galaxy S II Original Android Development] fidorulz:
BTW do I need to calibrate the battery every time I flash a kernel?

Cause at the rate these updates are coming its impossible to properly calibrate my battery lol
[Galaxy S II Original Android Development] Mustoura:
^ lol you just got there before me ^

Wow really can not keep up. I'm just about to finish calibration on 10 and you have hit 12, i flashed 10 then 11 came out now your on 12 lol is there much difference from 10 to 12? i have been hammering my phone today as to usual and I'm still on 31%. By now it would be charging with the amount i have been using it.

Fantastic work by the way.

Didn't think could get much better battery than what i had.

Amazing

Where there is Hardcore there is hope.

Sent from my GT-I9100

(P.s or should i wait for 5 min 13 lol jk. ) ;p
[Galaxy S II Original Android Development] mstolpner:
K2-12 feels much snappier!
[Galaxy S II Original Android Development] ka2uki:
yes~~i agree~smoother than k2-11 good work~HC!!:D
[Galaxy S II Original Android Development] troffers:
@hardcore

Weird thing just happened.

Flashed K2-12 .tar through CWM app and my modem disappeared.

Had to boot into recovery and re-flash.

All fine now but thought you might like to know!

Keep up the good work

Sent from my GT-I9100
[Galaxy S II Original Android Development] thanksgiving60:
flashed k2-12 and deep sleep was working at first, rebooted and it was gone again...
[Galaxy S II Original Android Development] scary_master:
I can not confirm it. kernel and especially deep sleep works fine. and no problems after reboot. k2-12 is perfect and smoother than the previous version.
[Galaxy S II Original Android Development] thanksgiving60:
oh well maybe its just me

no biggie
[Galaxy S II Original Android Development] Seifer1975:
No issue with deep sleep for me. Rebooted many times already.
[Galaxy S II Original Android Development] tonysac:
If I'm right kernel comes with default scheduler noop..is this the best scheduler to use with this kernel or we can change it with an app like nofrills for example..

Sent from Galaxy
[Galaxy S II Original Android Development] hardcore:
There are some apps that just hold the wakelock a lot, like the Facebook App (especially if you use the Chat function). The stock Email app set to Push Mail also uses a lot of wakelocks.
[Galaxy S II Original Android Development] tuvi123:
hardcore

which governor is used by this kernal (default) ?
[Galaxy S II Original Android Development] KennyLegend:
Ondemand I thought?
[Galaxy S II Original Android Development] Lownita:
I think if it wouldn't be good, hardcore wouldn't have put it in :) This is what I love about this kernel: Flash and forget! Runs perfectly without tweaking.
[Galaxy S II Original Android Development] Seifer1975:
I have a problem but dunno if it's kernel related. It seems that the phone doesn't execute any of the scripts inside /system/etc/init.d. At first my phone doesn't even have the init.d folder. I created it and put the script inside, named 98xxx. But it wasn't executed. When I set tasker to execute the same script on boot, it ran without issues. Anybody knows why or can help?
[Galaxy S II Original Android Development] hardcore:
The script name needs to start with an E or S.
[Galaxy S II Original Android Development] roymustafa:
Hardcore your work is great. On my first Galaxy S i used only your kernel and feel wonderful.

Hey guys sorry for this stupid question, but what is deep sleep an d how can i check if it works on mine?
[Galaxy S II Original Android Development] saar17:
Can someone answer this?
[Galaxy S II Original Android Development] ozzyita:
With 12 my menu scroll lags, anyone else?

Inviato dal mio GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] :
Nope, my menus fly. Been better than k11 it seems, but it might be just a placebo ;)
[Galaxy S II Original Android Development] gee2012:
Install cpu spy from the market
[Galaxy S II Original Android Development] bungknees:
Easiest way to check is put phone into standby mode by turning off the screen, wait for while, 30 sec should be fine, then push the home button, if it takes half a second for the screen to turn on, you have deep sleep, if it turns on instantly then you have probably got a deep sleep issue. Try it a few times before getting concerned, because you may have pushed the home button at the same time an app is updating or refreshing which has woken the phone.
[Galaxy S II Original Android Development] roymustafa:
Thanks a lot man. You r great. God bless you!
[Galaxy S II Original Android Development] SDeba:
K2-12 is much smoother than 11 ;)
[Galaxy S II Original Android Development] flute:
No, calibration is needed just when you flash a new ROM.

Inviato dal mio GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] SupraN0va:
This is what I call battery life.^^.
[Galaxy S II Original Android Development] notoriouspk:
what do i need to do when flashing a kernel ?

things that i do are

1 wipe cache partition

2 clear delvic cache

3 clear battery stats

4 calibrate battery

can someone guide me and plz do i need to calibrate battery everytime i flash a new kernel i calibarte with battery calibration(from market) each time when i flash a kernel.

s2 -k12 is blazing fast thanx hardcore :)
[Galaxy S II Original Android Development] SaneinOne:
Just flash it.
[Galaxy S II Original Android Development] dzontra11:
Why?
[Galaxy S II Original Android Development] Radikaal:
58% is good with almost 3h screentime, wifi on (dont know how much he used it thought) and also you can see that he played a game for awhile on the screenshot which like to drain battery good.

Right now im having 51% with screen on for 3h 8m and total on time soon 11h. 3g on 90% of the time, GPS navigation for 11minutes, some music listening and mostly browsing xda when screen on.

Count 3 reboots to that aswell.

Great performance for me, other kernels i would be much lower by now(but expected and normal on all k2 speedmods so far!). And i have almost not even left it to rest yet, when i leave it to rest it have 95% deep sleep with 3g on and 99% deepsleep when i turn off data, amazing it is! Althought i sync everything manually when i have the screen is on ^^

Running k2-7.
[Galaxy S II Original Android Development] nmsraider:
I can also confirm that since k2-t12 (missed t11) deep sleep is back. Im running lightning Rom 6.1 running super smooth. Thanks for you hard work HC.

Good fault finding skills.
[Galaxy S II Original Android Development] raynerape:
Is this kernel safe to install on a Batista70 FOXHOUND 2.3 ROM?

Has anyone had experience installing Speedmod over a Natista70 mod, are there any issues with this? I'd like to know before commiting.
[Galaxy S II Original Android Development] planetf1:
I'm using 2-12 with kj1

Generally seems great, but one issue I'm now seeing is auto brightness not working.

For example sat in dark here and auto does not really do anything.in truth it seems like the algorithm is not kicking in and the brightness stays as last set

I have a suspicion I saw this with 11 yesterday

What was changed/what can be configured?
[Galaxy S II Original Android Development] Radikaal:
Works just fine on Batista. You can safely flash it like you can on any other ROM!

---------- Post added at 12:29 AM ---------- Previous post was at 12:28 AM ----------
[Galaxy S II Original Android Development] planetf1:
Not sure if rom or kernel, but same behaviour after a reboot
[Galaxy S II Original Android Development] planetf1:
And now it's working again.almost as if the daemon stopped for a while.ummm
[Galaxy S II Original Android Development] coolfire:
K2-12 really feels snappier! :)

Sent from my SGSII
[Galaxy S II Original Android Development] formidabilus:
How is the deep sleep with k2-12, anyone? :P
[Galaxy S II Original Android Development] kamandor:
Just flashed k2-12, after coming from T1-39. I skipped the last few iterations because my phone had serious issues with T1-40 (random reboots, tons of force closes).

So far with K2-12 my phone is noticeably snappier overall. I will wait to see if I have any more random reboots and/or FCs.

Great work!
[Galaxy S II Original Android Development] coolfire:
Perfect for me. :)
[Galaxy S II Original Android Development] buxz777:
deep sleep seems to be working well here :-)

its a nice kernel :-) hats of to the dev :-)

ive tried pretty much all of them but this one is becoming my fave now :-)
[Galaxy S II Original Android Development] gabtug:
Just a quick Q for confirmation (as I don't exactly want to brick my phone!):

Can you load this Kernel onto a phone directly out of the box?

i.e. can you confirm that you don't need to flash a Frankenstein ROM etc. found on pages such as (http://xdaforums.com/showthread.php?t=1113928) before running this process?

Thanks!
[Galaxy S II Original Android Development] donalgodon:
If you have the Galaxy SII International version (I9100), and you flash this via PDA in Odin with the defaults selected, then yes, you can.

IF you have a Galaxy SI or some other variant of the SII such as the T-Mobile version, etc., then no.
[Galaxy S II Original Android Development] inferno17x:
I have just installed K2-12 keeps FC on Script Manager.
[Galaxy S II Original Android Development] donalgodon:
Did you clear cache and dalvik? I'd also repair permissions.
[Galaxy S II Original Android Development] gabtug:
Thanks donalgodon for that info.

Can anyone also advise if Speedmod is compatible with Cyanogenmod? -> on Speedmod's wiki that said it isn't but I have a feeling it might be out of date as I think I recall seeing a few posts about people running both with no problems.
[Galaxy S II Original Android Development] beaver2233:
No, its not compatible
[Galaxy S II Original Android Development] inferno17x:
Yes I did that I found it strange Script Manager can open up fine can access to different folders via Script Manager but when I access my bluetooth folder and tried to scroll it all the all down to the last it hangs and gives FC.
[Galaxy S II Original Android Development] hEEGy:
[K2-12 Update3] debugfs?

Is this suppose to be here?

# mount
nil on /sys/kernel/debug type debugfs (rw,noatime)

Whole "mount" command here: http://pastebin.com/CgkABbqE
[Galaxy S II Original Android Development] danielsf:
Hi, I am a bit new to the galaxy s2 custom kernels, I only have one question please. If I flash the custom kernel say on Frankenstein KI3 and then update the rom to Frankenstein KI8 (or any other Samsung update) do I then need to re-flash the kernel, or will the custom kernel still be their after the update? I know it is a stupid question, but I can't seem to find a straight answer. Any help would be appreciated, thanks :)
[Galaxy S II Original Android Development] donalgodon:
You might also try to clear the app cache and data from Application management. I have found that this helps sometimes with such issues.
[Galaxy S II Original Android Development] dan@msx:
yes.

when you flash a new rom this includes a "zimage" file (the kernel) so for each time you update the ROM you will need to update the kernel aswell afterwards.
[Galaxy S II Original Android Development] nicolasf:
K2 12 is running very well for me. Seems really snappy. Might be placebo but even swype seems more responsive.

Congrats!
[Galaxy S II Original Android Development] inferno17x:
I solve the problem by moving some files from the Bluetooth folder and it works now. Not too sure why something strange.
[Galaxy S II Original Android Development] dan@msx:
just to update, flashed K2-12 yesterday morning and been testing on night shift.

13 hrs 40 m - 35% battery remaining.....

running XWKJ1/KI3/KH2 frankenstien rom.
[Galaxy S II Original Android Development] KennyLegend:
Is that with data on and are u using auto brightness in ur screen?
[Galaxy S II Original Android Development] dan@msx:
data on all the time, screen on lowest brightness (well lit office) and 3hrs on wifi before work.... 3hrs 40m screen on time aswell
[Galaxy S II Original Android Development] notoriouspk:
with my little experience i can safely say that screen brightness kills ur battery ...i usually keep it at lowest level or use auto brightness ..must say good battery life with s2 k12 thanKoooOoo hardcore
[Galaxy S II Original Android Development] sachinaik:
Is it only me or everyone observing that installing Speedmod reduces the screen brightness ?

Previously I used to keep only 10% (non-auto) brightness and screen used to be very bright. Now I've to put almost 50% in order to achieve that brightness !!!

I'm not complaining. Just want to know if it is expected behavior and has to do something with the below feature of speedmod :

"Lower brightness at low-light levels"
[Galaxy S II Original Android Development] haroonasla:
Screen Sensitivity

hey hardcore,

What is with the screen sensitivity with this kernel ? I have been noticing that its not as smooth to slide the finger on the screen. Try it by sliding the finger on same spot repetitively. Its like the screen develops a charge which resists the smoothness of finger slides. Can it be tweaked to be more smooth and responsive ?? With CF Root, its a bit smoother. But your kernel's other features are better and i have been using it since start :) Good work.
[Galaxy S II Original Android Development] rogers73:
I have been following the Speedmod-kernels for some time. Battery-usage in idle (during the night) has always been about 1-2% drain per hour. After upgrading from 2-10 to 2-12 the drain is much lower. The phone now drains less than 0.5% per hour. The "usage-graph" is almost flat while the screen is off. This is great!

Was there any special change from 2-10 to 2-12 that can explain this? I'm on WanamLite.XXKI4-V5.1 ROM (haven't changed this in a while).

Thanks for a great kernel! Also no crashes on this one. I've tried Siyah-kernel a few times, and it always hangs during the first 24 hours.. It also uses more battery in idle.
[Galaxy S II Original Android Development] byobodybag:
I was just wondering, has anyone used SpeedMod with MIUI? How's the performance and all?
[Galaxy S II Original Android Development] Rintenfinten:
K2-11 runs faster on my system (KI8).
[Galaxy S II Original Android Development] dragon546:
I don't think Speedmod supported AOSP Roms. So not a good idea
[Galaxy S II Original Android Development] rikz112:
thanks hardcore for the kernals your kernal is the best i think!! using k11 right now..just wanted to ask with the deep sleep talk i now have betterbattstats and cpuspy... i get over 90% deep sleep when phone locked this good right????

also in cpuspy the top 2 are suspend and events and they have a red bar graph what does that mean exactly?
[Galaxy S II Original Android Development] nicksnoobie:
I think it's suppose to be good. I got mine on high all the time when I don't touch my phone but when I use it, it's low. That make sense.

---------- Post added at 07:27 PM ---------- Previous post was at 07:22 PM ----------

and with K2-10. Battery last very long for me. 20 hours gone and battery dropped to 64%. 1 hour screen on at 75% brightness, some phone calls and music.

Gonna flash K2-12 now
[Galaxy S II Original Android Development] rikz112:
cheeers dude
[Galaxy S II Original Android Development] eastonfr:
I would like touchscreen bit more sensitive! Fast kernel though gd wrk.
[Galaxy S II Original Android Development] BrandoHD:
Have you read the opening page buddy???

hardcore has tweaked the brightness settings, it's one of the strengths (IMHO) of this kernel
[Galaxy S II Original Android Development] yabosid:
k2-12 runs flawlessly on Cog 1.6 (KI3) w/ Jkay 12. But then again, so did K5, 6, 7-11 :)
[Galaxy S II Original Android Development] Cygnuss:
It could be better tweaked I still find it to have a bit more light then needed, but its the best kernel so far!
[Galaxy S II Original Android Development] buxz777:
i am really loving this kernel i stayed away for a while as it wouldn work with my app lockers , i have now found one it does work with and its a nice app to with great features and loads of options

its called ''smart app protector''

this means i can now use speedmod kernel and lock my apps incase i loose my phone my data is prety safe :-) excellent stuff :-)

back to the kernel the deep sleep is working great , the low screen brightness is working great , the kernel flys through benchmarks and as others have said even things like swype seem smoother to use

i was trying the SiyahKernel v2.1 betas but even with over clocking and undervolting that kernel wasnt as smooth as speedmod k2-12

thats really some achievment there , this kernel feels smoother and has better battery life then a kernle that can be overclocked and undervolted and to top it off it is much more stable and has better deep sleep then SiyahKernel v2.1

keep up the great work with the kernel mate i see why so many people used your work on the sgs1 now :-) stable , fast , great battery life , nice little touches like the screen brightness :-)

have a great day and i think ill buy you a beer later via paypal :-)
[Galaxy S II Original Android Development] sachinaik:
thanks for confirming...I've read the first page, just wanted a confirmation... :)
[Galaxy S II Original Android Development] beaver2233:
Does this in anyway drain battery or anything?
[Galaxy S II Original Android Development] kremori:
Just to share my experience with flashin K2 kernels,

a flashed past four kernel one after another with ODIN without any other operation like clear cache or any anything, and it worked just perfect.

After flashing last k2-12 with CWM with clear cache and dalvik cache i got huge batery drain, most probably calibration issue.

So i suggest flash with ODIN no other operations just flash.
[Galaxy S II Original Android Development] Cygnuss:
I've been using only cwm since k2-1 and no problem so far
[Galaxy S II Original Android Development] haroonasla:
Screen Sensitivity

Well, there is a screen tuner apk available in the forum which helps with the sensitivity. However, using the service mode is not very good with battery and also it doesn't respond sometimes after deep sleep as su access is required on every wakeup.

Is it somehow possible to make the screen sensitivity changes configurable through scripts ? so its done automatically ? Or can it be reduced by tweaking any file in system folders ?

I would really like it to be more sensitive. Level 0 is really smooth in the screen tuner app by vitalij. If only it can permanently be activated in the kernel :)
[Galaxy S II Original Android Development] coolfire:
1st charge using K2-12, with Sammy stock 1650mAh battery, that is. Thanks hardcore!

Sent from my SGSII
[Galaxy S II Original Android Development] pedrolopes665:
1% during sleep. is it great? :p

tks, Rod!
[Galaxy S II Original Android Development] coolfire:
Use your bloody phone! :p

Sent from my SGSII
[Galaxy S II Original Android Development] pedrolopes665:
I (think I) am not somnambulant!! lol
[Galaxy S II Original Android Development] byobodybag:
LOL yeah! No Wifi, no Display time, nothing... that's a very expensive paper weight if you ask me. :D
[Galaxy S II Original Android Development] morg01:
I've obviously got something eating my battery :(

Sent via courier pigeon
[Galaxy S II Original Android Development] dzontra11:
Pal..use Better battery and see what eat your phone battery.
[Galaxy S II Original Android Development] byobodybag:
Go download betterbatterystats and see what's keeping your phone awake.
[Galaxy S II Original Android Development] KennyLegend:
Look at your awake time vs ur screen on time. Your phone is awake even though your screen is off. You have a rogue app /widget.
[Galaxy S II Original Android Development] coolfire:
Yeah, his wakelocks are pretty dang bad. :p
[Galaxy S II Original Android Development] pacc:
Thanks for this last version, works great!

This kernel supports ext4 or ext2?

Converting file system in i9000 was essential, but is there a benefit converting to ext4 or ext2 in i9100 ?
[Galaxy S II Original Android Development] KennyLegend:
The i9100 is on ext4 already.
[Galaxy S II Original Android Development] pacc:
Thanks for info, I came recently from i9000 and I thought the original i9100 filesystem was still RFS.

Ext4 is so much better.
[Galaxy S II Original Android Development] scorpion667:
I would LOVE this!
[Galaxy S II Original Android Development] morg01:
Here's a shot from better battery stats.. But what do i do now?

Sent via courier pigeon
[Galaxy S II Original Android Development] hacksome:
[EDIT] Posted on wrong thread.