yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] coolfire:
Very good battery life for me using T27. May try T28 as well tomorrow.

Btw hardcore, I think a number of your kernel users (including me) will be highly appreciative if you could include the tsp_threshold value for those using SGP Glas screen protector. ;)
[Galaxy S II Original Android Development] spike_14:
THIS KERNEL DON´T SUPPORTS BNL????

+1 for this function... speedmod kernel its pretty good... (my old sgs goes smooth with it)
[Galaxy S II Original Android Development] frankcilo:
How I can reduce cpu voltage on this kernel?
[Galaxy S II Original Android Development] shingers5:
think he meant the cwm manager not recovery. :cool:
[Galaxy S II Original Android Development] shingers5:
correct me if am i wrong but this is for the SGS so why would you use it on a SGS2? it would be good however if this was adapted to work with SGS2 as it worked flawlessly on my old SGS white.
[Galaxy S II Original Android Development] hardcore:
As far as I know, there is no such thing. For the SGS2, color is controlled by profiles in the rom - that's why you can switch display profiles from the Settings > Display menu.

And I'm not aware of any mdnie setting that can correct color differently from one side of the screen to the other... it can only adjust the color of the entire display.
[Galaxy S II Original Android Development] Albertotuchi:
Frankcilo You cant undervolt with this kernel.

How I can reduce cpu voltage on this kernel?
[Galaxy S II Original Android Development] AndreiLux:
Use the RageMod kernel which is based on this one plus added CPU control.
[Galaxy S II Original Android Development] frankcilo:
Thanks !!!
[Galaxy S II Original Android Development] nofam:
Had crazy battery drain overnight with T28 - from 100% down to 67% in around 8 hours with all radio's disabled (via Juice Defender).

Nothing showing in Betterbatterystats in the way of wakelocks, and nothing else changed on the phone (Cognition 1.5) other than flashing T28.

Anyone else having this kind of drain?
[Galaxy S II Original Android Development] nikzDHD:
Yup I've noticed fast idle drain with t28 aswell compared to other versions. Usually by 50% my screen on time is about over 2 hours now less than 2 hours. Will give it 1 more day of testing once my battery drains to zero and fully calibrated.
[Galaxy S II Original Android Development] rdy2go:
Freeze when playing video.

Had to remove the battery...

K28, stock h3 Rom
[Galaxy S II Original Android Development] QuentinCosta:
i have that battery drain too. over night 30% since k1-T27 and T28. before the last updates erverything was fine :(
[Galaxy S II Original Android Development] iwang:
I am on stock with t28..will test again today but yesterdays battery was somewhat better.
[Galaxy S II Original Android Development] mellll:
This really does make the phone a hell of a lot faster.

Scrolling through the home screens, there no more jitterness or laggyness.

Its completely smooth now.

Thank you!!!
[Galaxy S II Original Android Development] beaver2233:
+1, would be great, but nonetheless still very happy with the kernel
[Galaxy S II Original Android Development] coolfire:
Absolutely great kernel. If the touchscreentune app works (applying the main settings to "5"), then no need for the fix from hardcore's side. :D
[Galaxy S II Original Android Development] beaver2233:
where can I download this app ? :/
[Galaxy S II Original Android Development] :
Will this kernel work with Lightning Rom 6.1? If so, how do I install it so Lightning Rom doesn't disappear?
[Galaxy S II Original Android Development] iwang:
I got more than 3 hours screen on time in t28. Wifi and 3g on, signal is quite poor.

Stock tom, rooted,freeze bloatware,.email sync every hour.auto brightness.
[Galaxy S II Original Android Development] Bugeca:
Hi Hardcore,

Is the deep sleep functioning in T28? Cpuspy did not register it although I left the phone idle for almost 2 hours.
[Galaxy S II Original Android Development] reaperreaper:
Kernel works fine in combination with litening rom, just flash this kernel via Odin, no data will be lost, however it's alway's a good thing to backup ur current rom + apps
[Galaxy S II Original Android Development] hardcore:
Sure it works. It is normal for the phone to not go into deep sleep if plugged into the charger.
[Galaxy S II Original Android Development] komarto:
Should I wait for BLN support on this kernel or just use RageMod which is based on this kernel?
[Galaxy S II Original Android Development] jetshinoda:
hi hardcore..

what's the difference on this Samsung update2 source code that u put in T28 with T27 actually ?

it's still based with 2.6.35.7 kernel right ?

just curious...thinking of switching to Speedmod from Ninpo
[Galaxy S II Original Android Development] ithehappy:
Can anyone say if I it's possible to get more than 5 hours of Screen On time with T27? I am currently on CF root and getting 5-5½ hours of Screen On time, would like to flash this one if it's any better.

Thanks in advance.

Regards.
[Galaxy S II Original Android Development] iwang:
I got 4.5hrs screen on time with t28, 3g and wifi on..can be better since there are still some drains on standby..
[Galaxy S II Original Android Development] MikeFRG:
+1 for me :D
[Galaxy S II Original Android Development] hardcore:
Somebody did a battery life comparison of a few kernels and speedmod came out on top.

http://xdaforums.com/showthread.php?t=1229633
[Galaxy S II Original Android Development] asgard:
Moved from T27 to T28... seems to guzzle more than Steve Jobs at the Mardi Gras. 12 hours down to 20% with only an hour of screen on and 19 mins of calls. T27 was pretty good. Thanks for your efforts HC!
[Galaxy S II Original Android Development] QuentinCosta:
i advise everybody with this draining problem to take the RAGE-MOD-Kernel. http://xdaforums.com/showthread.php?t=1229128

its based on this speedemod kernel T27 and theres no batterylife problem in standby.

since the speedmod T29 will be released it is a good solution. i lost only 1% battery in about 3 hours.
[Galaxy S II Original Android Development] dzontra11:
T27 i's much better then t28...

8h and 20min. ..i lose 31% of battery...
[Galaxy S II Original Android Development] jbdeq:
No Deep Sleep here either. Just changed to Ninph to compare and deep sleep working OK on that one.

Think best kernel in terms of battery life I ever used was Speedmod T20. May change back to that one.
[Galaxy S II Original Android Development] hardcore:
Deep sleep working fine for me. Remember that there's no deep sleep while charging.
[Galaxy S II Original Android Development] nicregi:
Thanks for sharing t28!
[Galaxy S II Original Android Development] jbdeq:
Strange... I had the problem the whole time it was done charging. Battery lasted 12 hours yesterday on minimum usage. Usually get around 2+ days with your previous kernels.

Didn't change anything else either - straight swap of the kernel from T27.

Oh well, will give T29 a go when released and see if i still have it.
[Galaxy S II Original Android Development] bynam:
Hi

Battery life is very important for me

Pleace tell me which Released is best for battery life
[Galaxy S II Original Android Development] jetshinoda:
so is it still based on 2.6.35.7 kernel ?

i see ur using T28 :P

just curious mate :D
[Galaxy S II Original Android Development] hardcore:
It's based on the sources that samsung released, which says 2.6.35.7. But looking at some of the source code, I'm pretty sure Samsung has patched it up higher than that version, but just left the version number the same.
[Galaxy S II Original Android Development] Davith:
Finally made the switch to Speedmod (which I loved on the first Galaxy S). I hope the battery is as good as it is said. I jumped straight away to the latest K1-T29.
[Galaxy S II Original Android Development] nl2008:
Anyone has gps lock problems on T27 kernel? Im using Batista70 3.7.2 with T27 kernel. Thanks
[Galaxy S II Original Android Development] koreancanuck:
No problem with gps locks when I have data enabled. When I have wifi enabled, I have had issues where my phone sees satellites but not actually lock. But I had that problem with other roms/kernels as well.
[Galaxy S II Original Android Development] celiocalves:
Sensation 1.5 + ragemod t27 v2 + gps config file for my country = lock in 15 sec
[Galaxy S II Original Android Development] nl2008:
Thanks for the info.
[Galaxy S II Original Android Development] nicregi:
thanks for the new update.

However I have a question. is it normal as when you use barcode scanner to download it to your phone, it shows download unsuccessful?:confused:
[Galaxy S II Original Android Development] nofam:
Flashed to T29 this morning, and the excessive drain is still there; lost 12% in around 3 hours of use. Nothing out of the ordinary showing in the way of wakelocks etc, and CPU Spy was showing very high Deep Sleep rates. . . . .so nothing in my setup has changes since T27, yet the battery drain is much worse.

Very odd. . . . .
[Galaxy S II Original Android Development] goodwinod:
I have gotten up to 36 hours with just over 9 hours screen on time with KH3 and speedmod t17. I am very happy with that.
[Galaxy S II Original Android Development] koreancanuck:
9 hours of screen time? Your screen must be on lowest brightness all the time and probably doesn't display any high graphics or anything of that nature..
[Galaxy S II Original Android Development] beaver2233:
Yeah, that's ridiculous, I usually get around 5 hours max...and most of that time it's on lowest brightness...
[Galaxy S II Original Android Development] _Opiate_:
Is there a repository of all the speedmod kernels or can we only download the latest three?
[Galaxy S II Original Android Development] chimerical26:
Seems to be an awful problem with battery on t27 for me anyway.

View attachment 704583

Well awful is an over statement but it's not what one would expect from speedmod.
[Galaxy S II Original Android Development] hardcore:
That looks normal to me. Idle battery life looks good and when in use battery usage looks normal.
[Galaxy S II Original Android Development] Silverbolt:
I am having trouble with battery drain too, but in 29 I also discovered white pixel lines on some programs. Most noticeable when using Dolphin browser.

I went back to 28 and the lines disappeared but the battery drain is even worse.
[Galaxy S II Original Android Development] koreancanuck:
14 hours isn't that bad and it seems your browser takes a lot of battery life away. What is your display up time?
[Galaxy S II Original Android Development] Davith:
I agree there seems to be something wrong with T29. The phone is definitely not going into deep sleep. It only drops to 200 MHz at the minimum which causes excessive battery drain in idle. It probably is the same issue people reported having in T28. I'm sure it's not coming from setup as I didn't change anything at all.

I will try T27 tonight.
[Galaxy S II Original Android Development] xos84292:
hardcore~ Welcome to our family (Galaxy S2 developer :D) , Thank your Gift...
[Galaxy S II Original Android Development] mach0boi:
IDK if it is the one you're talking about but here is the link to that thread http://xdaforums.com/showthread.php?t=1161262
[Galaxy S II Original Android Development] nightranger73:
About OCing you forgot that this is a dual core CPU and all the kernel with OC for sgs2 already tested have higher benchmarking results and improvements in speed and smoothness.
[Galaxy S II Original Android Development] hardcore:
K1-T8 is out:

- Touchscreen sensitivity fix from vitalij (set to 5)

- Minor adjustments to tweaks

- More kernel debugging disabled

- CPU stats disabled
[Galaxy S II Original Android Development] mach0boi:
Great! What about CWM recovery? :)
[Galaxy S II Original Android Development] briko78:
Hey there...

Read many positive things about your kernels. Would like to try them... Can I use them with any Rom? I'm on Lite'ning 3.2.

Bye

Briko
[Galaxy S II Original Android Development] pierro78:
+1 :)

10char
[Galaxy S II Original Android Development] bboran:
What about BLN? Is it possible hardcore?
[Galaxy S II Original Android Development] washburn111:
Finally

Can I use this with 2.3.4?

Glad you're here now HC :D.
[Galaxy S II Original Android Development] animelover:
Samsung postet a source code update named "gingerbread_update1" few days back! Someone said it could be the 2.3.4 kernel source!

Anyone tried it?
[Galaxy S II Original Android Development] hardcore:
That's what this kernel is built from. I doubt it's the 2.3.4 source.
[Galaxy S II Original Android Development] EarlZ:
Yeah thats the one but it does not bother me that much, infact its not noticeable on my end for daily usage but a fix is a fix.

What Im more interested is the better touch screen sensitivity threshold, where in with minimal skin contact the screen responds, I forgot what service menu command this was.

EDIT:

http://xdaforums.com/showthread.php?t=844216

That one, I remembered on the Wave it can be done via service menu and on the Galaxy S1 with the service menu and another app which I forgot.
[Galaxy S II Original Android Development] hg3atintin:
Can I use setcpu to undervolt with this kernel?

Edit: Seems not.
[Galaxy S II Original Android Development] hk5354:
any ziped version for the rooted rom? thx
[Galaxy S II Original Android Development] jlevy73:
Here's a video on the touchscreen fix that the OP added. http://www.youtube.com/watch?v=sRXcBcpSD1w

As for the GPU, ours is independent of the CPU. So OC the CPU doesn't touch the GPU like it does with other chip sets. Most of the time the GPU sits at 160mhz but during certain conditions mostly with games it will kick up to 267mhz. Because many games are poorly coded, especially those from gameloft, that additional gain in gpu peformance is really appreciated. TegraK has this option in his overclock module and after using it for about week it didn't have any adverse conditions nor excessive battery drain.
[Galaxy S II Original Android Development] ObihoernchenDE:
It's 2.3.3 and pretty old. KF2 iirc.
[Galaxy S II Original Android Development] jlevy73:
thanks for the update, this kernel is running extremely well with fantastic battery life.
[Galaxy S II Original Android Development] animelover:
What Kernel have you in use?
[Galaxy S II Original Android Development] H377:
Guys,

It's gone!!!!! The Android OS "bug?"!! with the latest K1-T8!!! and KG3!!!!

Cannot believe it!!!!

There's nowhere in my battery stats!

I hope I'm not chasing shadows... :)))) I restarted the phone, removed the batterstats.bin, etc... And it's not even there!!!!!

Can you believe it?? Because I cannot!! :D

Someone please confirm it! :)
[Galaxy S II Original Android Development] jlevy73:
Speedmod T8....
[Galaxy S II Original Android Development] gtda:
Battery drain definitely a problem for me on t28. Also couldn't get a gps lock at all today. I have brightness set to zero, turn off sync during the day. I check emails manually. I generally browse net on 3g/h use facebook and txt msg. I never play games, randomly listen to music. I barely got 7 hrs. Calibrated the battery yesterday. during the night u could see when the phone would wake to check mail, wifi was accidently left on, but phone was going to sleep properly. Hope there is a fix soon coz I don't use anything other than hardcores kernels
[Galaxy S II Original Android Development] beaver2233:
well my phones going into deep sleep just fine...on t29
[Galaxy S II Original Android Development] hardcore:
Same here. Deep sleep works fine on T28 and T29. T29 feels smoother to me.

To people who are having deep sleep problems, what rom are u using?

EDIT: Facebook has also recently rolled out updates to its app. People are reporting higher battery usage with the new Facebook app, so that could be causing some differences in battery life as well.
[Galaxy S II Original Android Development] jetshinoda:
thanks for the explanation hardcore :) cheers
[Galaxy S II Original Android Development] gschot:
I must say, I installed T29 this morning, removed the USB cable (I think that the phone doesn't go to deep sleep when connected to a PC in USB Debugging mode), and I see that the phone indeed DOES go to deep sleep.

I am on stock XWKF3 / XXKE7 / XENKE1 (pda / phone / csc) with Speedmod T29.
[Galaxy S II Original Android Development] ithehappy:
Hm, frankly I don't believe that thread anymore.

Anyway, I will use T27 by myself and see if it's better than CF or not and post back here :)

Regards.
[Galaxy S II Original Android Development] nikzDHD:
Best way of doing it is to try it by yourself than to rely in others findings as usage will never be the same.

Deep sleep working fine with the new version for me.
[Galaxy S II Original Android Development] Davith:
I'm not sure what I could be doing wrong.

I'm on the official XWKG1 (2.3.3 for France) with the KH3 Modem. Nothing special apart from this.

I made the straight jump from CF-Root to Speedmod T29. Before that, deep sleep was working fine which makes me think that it's not just a coincidence. Now CPU Spy shows two "Unused CPU States" : 1000 MHz and Deep Sleep.

My FB was already updated prior to this so I don't think it's related. Nothing else changed in my setup. I will try Speedmod T27 tonight when I get back. That way we'll be able to know if there's an issue (for some at least) with T28 and T29.
[Galaxy S II Original Android Development] beppez82:
Well I saw on the sgs2 of my GF that the official FB app have serious problem preventing the phone going into deep sleep: sometimes it go into sleep, sometimes it stay awake all day with screen off.

Removing it solved the issue, and now she use gofacebook widget, and if you want something like the official app without strange drain use friendcaster pro.

Btw i dont use FB at all so i never had any wakelock or non deepsleep state when phone is off with all kernels :)

Sended from my SGS2
[Galaxy S II Original Android Development] huuub:
Well sign out of the chat in FB. No problems there...

Also, sign out of latitude in maps.

Use betterbatterystats (search in XDA)

Use batterymonitorwidget (very nice to see how your battery is doing)

After long struggling I am now on losing 1.2%/hour while being Idle.

Keeping WIFI on and connected (on mobile data is drains more).
[Galaxy S II Original Android Development] hardcore:
K1-T30:

- Compatibility fix for non-Samsung emmc storage

For most of us there won't be any difference between K1-T29 and K1-T30.
[Galaxy S II Original Android Development] Davith:
Well I only updated the FB app last week and deep sleep was working fine for me.

I can only guess there's some sort of incompatibility with some of the apps I'm using or something.
[Galaxy S II Original Android Development] huuub:
Install betterbatterystats

It will tell you what wakes your device!!!
[Galaxy S II Original Android Development] Galaxy s2:
These updates coming out so fast do i have to recalibrate battery every time or not???
[Galaxy S II Original Android Development] chimerical26:
Re: my comments on battery life. I quit cigarettes yesterday so was probably using my phone more than average without noticing. In hindsight it looks better now.

View attachment 704765View attachment 704766View attachment 704767
[Galaxy S II Original Android Development] coolfire:
I don't think that is necessary for flashing of kernels.

Sent from my SGSII
[Galaxy S II Original Android Development] jayjoe:
hi, no deep sleep for me on speedmod T29 too. Ive changed on the fly to ninphetamine 2.1.3 and after that to CF KH3 and deep sleep is back on both. Dont know what happen but i changed nothing in my configuration. however, hardcore, thank you for your hard work.
[Galaxy S II Original Android Development] JugglerLKR:
t30 - reports broken sdcard and tries to format it! checking t29.
[Galaxy S II Original Android Development] vinur:
tun.ko

Please add to kernel tun.ko support
[Galaxy S II Original Android Development] :
Wtf? I installed SpeedMod T29 last night and my phone was at 100% 6 hours ago, and now it is at 70%, and I didn't even touch it a single time. It has been idle for 6 hours!!

Why the hell is it draining so much battery? It says Display is 50% of the usage, so why is it draining so much? It is draining like 5x more than the stock kernel...
[Galaxy S II Original Android Development] Davith:
You're probably having the same issue some of us are having. No deep sleep for you too, just a slight nap.
[Galaxy S II Original Android Development] xmfpdlemalnz@hotmail.com:
which kernel doesn't have a battery drain problem?

I only tried T27 and it seems drain problem is present.

thanks for suggestions
[Galaxy S II Original Android Development] dzontra11:
T29..92% deep damn sleep..
[Galaxy S II Original Android Development] hardcore:
My guess is that people having the deep sleep problem have some app that is causing it.
[Galaxy S II Original Android Development] dzontra11:
I found that Facebook and Twitdroid app drain battery very fast...
[Galaxy S II Original Android Development] dzontra11:
I play some games but deep sleep its still great.

[IMG=http://img24.imageshack.us/img24/7818/sc20110830152154.png][/IMG]

Uploaded with ImageShack.us
[Galaxy S II Original Android Development] dzontra11:
I play some game but deep sleep its still great.

[URL=http://imageshack.us/photo/my-...ack.us/img24/7818/sc20110830152154.png][/IMG]

Uploaded with ImageShack.us[/URL]
[Galaxy S II Original Android Development] jayjoe:
Hi hardcore,

but then why proper deep sleep come back immediate on CF and Ninphetamine Kernel. Don't change my config/apps in the meantime.
[Galaxy S II Original Android Development] :
Can someone explain to me what deep sleep is?
[Galaxy S II Original Android Development] coolfire:
Well, now that is interesting....
[Galaxy S II Original Android Development] JugglerLKR:
well after flashing t30 kernel /mnt/sdcard not mounted for some reason... flasing another kernel / rom didn't help...

cwm recovery works with /mnt/sdcard.

i guess i have to wipe...

probably can be fixed in some config files like fstab, but i need help where to look for...
[Galaxy S II Original Android Development] gtda:
since t30 a few minutes ago xda app keeps force closing

was ok on t29

think i mite go back to t27 coz t28/29 drained battery alot

went back to t27

still got force closes

no idea why tho
[Galaxy S II Original Android Development] mariotme:
Am on 29 and it just fced I doubt it has anything to do with the kernel
[Galaxy S II Original Android Development] gtda:
it only force closes when i browse this thread

i open it, click back one page so i can see previous posts, then force close

tried other threads in my favourites and clicked back and they worked fine

whats up with this thread?
[Galaxy S II Original Android Development] dzontra11:
For me the same....force close..just this ..
[Galaxy S II Original Android Development] Bynar010:
Me too. Anyone had sleep of death on t30? Phone just refused to wake up, never done that before installing t30
[Galaxy S II Original Android Development] Qwerty__-:
thx for this magic kernel :)
[Galaxy S II Original Android Development] mchosch:
Not for me, stabile xda-app on T30
[Galaxy S II Original Android Development] hardcore:
K1-T31:

- Experimental fix for "no deep sleep" problem from update2 source code (?)

To people having the no deep sleep problem with K1-T28 and later, can you try K1-T31 and see if it fixes it for you?
[Galaxy S II Original Android Development] Davith:
Thanks Hardcore, my phone is now going into deep sleep! You're just too damn good. :D

Now I'll be able to enjoy Speedmod just like I did on the SGS1.
[Galaxy S II Original Android Development] marvinhemstock:
thanks hardcore flashed ok :D
[Galaxy S II Original Android Development] nikzDHD:
T29 has been the worst for me compared to previous versions, down to 13% after 10 hours 30 mins, screen on time only 2 hours 45 mins. Low brightness as well. Will try the new T31 now.
[Galaxy S II Original Android Development] fabioccoelho:
Hi, works with I9100UHKG7 Kernel?

Thanks.
[Galaxy S II Original Android Development] robbiekhan:
Thanks for the update!