yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] mstolpner:
The screen issue happened to me a few times. I think the sequence of events is as follows : I turned the screen on, then I turned the screen off using power button just a few moments away from the phone doing it automatically, then the phone turned the screen back on instead of off.
[Galaxy S II Original Android Development] hardcore:
does it happen with k19 test 1?
[Galaxy S II Original Android Development] sahidmiah:
Guys can u all please check youtube full hq movie playback .after a wile it stutters .i have tried all the kernels out there but non of them seem to solve the problem .i don't know weather some one else suffered the same problem .i am sure we spent lots of time in youtube that's why its really important .small videos are ok its only 2 hour long movies they seem to stutter after half way through the movie
[Galaxy S II Original Android Development] Chanz09:
I get that too
[Galaxy S II Original Android Development] ephraim:
Use the lastest siyah kernel 2.6.6 or speedmod 18-test2.. it removed the stutter for me :)
[Galaxy S II Original Android Development] komsa:
....today,afternoon i updated my ROM from KK5 to KL1(stock deodexed) and after a few hours my "screen issue" happened again(K2-18) now i am testing K2-19 test1........hopeing for the best..........tomorow i'll tell you my opinion about :)
[Galaxy S II Original Android Development] jsompis:
I also randomly have "screen issue" on K2-18 and K2-19T1 both.

If screen not turn off, then touch screen don't work too.

XWKK5 deodexed.
[Galaxy S II Original Android Development] sageman70:
K2-19 was for me a disappointment. The battery drains faster than K2-18! I have reset everything inc. Dalvik cache. I even used voltage control with different governors and I/O controllers but to no avail. K2-18 is definitely still the King. I use K-19 email and with K2-18 and NEAK I get over 1d 5h easily.
[Galaxy S II Original Android Development] beaver2233:
It isn't recommended to change the governor of this kernel, as the default (ondemand), is tweaked for battery and performance (as stated in the first post)...
[Galaxy S II Original Android Development] sageman70:
Hi,

I have changed it only after exhausting all other options. The default settings of k2-19 did not give me what k2-18 gave me in terms of battery life. I will stick to K2-18 for the time being.
[Galaxy S II Original Android Development] pakatus:
Weird...

as for me k19 has been the surprise..

managed to squeeze 38 hours of juice....

Data on request

Wifi allways on.
[Galaxy S II Original Android Development] doongoo:
everybody can chosse the kernel, which for her/him best suits. For me K2-19 test1 is the best, because I need voodoo louder. I didn't realized any stronger battery drain as on K2-18. My phone is running since yesterday 6:00 am and I'm on 55% battery now, so I am totally satisfied.
[Galaxy S II Original Android Development] Fille84:
I also think K2-19 test1 is very good. I can easily get 6-7 hours of screen time over 2 days with this kernel. I use ondemand 200-1000.
[Galaxy S II Original Android Development] CandyAndy:
This could be a stupid question but does this work with CM9 with ICS?

E. and the answer will be NO :)
[Galaxy S II Original Android Development] dragon135:
For me k2-19 test 1 is much less battery drain than k2-18.. But I notice very minor pause/lag when playing home run battle 3d but it is very rare only 2 times or so.. I remember k2-18 does not have thus issue.
[Galaxy S II Original Android Development] KeesStolk:
I tested K2-19 test 1 for a couple off days, but i am back to K2-18 finale.

On K2-19 test 1, Android OS is on top off my battery usage list and it's really draining the battery.

Especially when wifi is enabled, no difference when using wifi off when screen is off or always on.

No such problems with K2-18.

Both are smooth and fast by the way.

Running a KL1 rom.
[Galaxy S II Original Android Development] burner07:
i just bought a sgs 2 upgrade from sgs (lots of flashing etc:D) but i don`t have an usb cable how can i install cwm version from stock recovery? or can you give me a tutorial thx:D
[Galaxy S II Original Android Development] CamoGeko:
You need USB cable to root. :)

Communicated from a Galaxy far far away via an XDA premium neurotransmitter while DJ'ing on The Enterprise.
[Galaxy S II Original Android Development] ithehappy:
Or you can use Mobile Odin !
[Galaxy S II Original Android Development] ghmail2:
K2-19 is laggy wenn scorlling:(
[Galaxy S II Original Android Development] CamoGeko:
Mobile ODIN requires root. ;)

Communicated from a Galaxy far far away via an XDA premium neurotransmitter while DJ'ing on The Enterprise.
[Galaxy S II Original Android Development] burner07:
can i install k219 test1 on ROM I9100XXKL1_I9100OXAKL1 Latest I9100 ROM! ??? thx
[Galaxy S II Original Android Development] nikzDHD:
Should work fine.
[Galaxy S II Original Android Development] sahidmiah:
yeah but you try to play a full 2 hour long movie and you will see hoe annoying it is
[Galaxy S II Original Android Development] EdgaBimbam:
this kernel k18 is so amazing, after 8 hours battery still 100% ofx i was doing anything with phone, but still it is very very nice :)
[Galaxy S II Original Android Development] coolfire:
Nice. Shows how good standby with SpeedMod can be. That's with 3g/data off correct?

Sent from my SGSII
[Galaxy S II Original Android Development] EdgaBimbam:
yeh it is without 3g because im using only wifi, i will test my battery on medium usage and will post results :)
[Galaxy S II Original Android Development] hardcore:
K2-19-test2:

- Updated scheduler tweaks

- Disabled AFTR cpuidle mode
[Galaxy S II Original Android Development] KeesStolk:
Txs, just flashed the K2-19 test 2 cwm version without problems.

Ask before, but you probably missed it, or i missed your answer :).

What are you thoughts about the cleaning script?

http://xdaforums.com/showthread.php?t=1363738&highlight=cleaning+script
[Galaxy S II Original Android Development] Davith:
Are you freaking kidding me?!
[Galaxy S II Original Android Development] veveko:
Great work Hardcore! glad To see you on Galaxy S 2 dev threads :-) I allready used speedmod kernel on my i9000 and i'm happy to see it on i9100, just a little question: it will be possible To include possibilities To install customs boot animations and OC in future version?

Envoyé de mon SGSII via Tapatalk
[Galaxy S II Original Android Development] Cygnuss:
does it support bln and undervoltage yet?
[Galaxy S II Original Android Development] obionenairobi:
If you read the thread you would know the answer :-) No
[Galaxy S II Original Android Development] nikzDHD:
No, if you after BLN there are plenty of kernels that support it.
[Galaxy S II Original Android Development] GeForce66:
why does anyone want BLN??

it´s a speedkernel, so it should be fast and battery saving ...
[Galaxy S II Original Android Development] 2dorr:
I for example had an SGS 1, so I used only hardcore's kernel, and it had BLN. So it's simple why I still want BLN...By the way can we have a CWM install method?
[Galaxy S II Original Android Development] DarkDvr:
hardcore

I'd like to get your input on the only issue that annoys me at this time.

Home button lag.

I think it's been determined by experimentation that it's a leftover from one of the Samsung's apps that waits for there to be a second tap after the first one, thus creating a "lag" of around 1 second total.

Before people start yelling with foam coming out of their mouths, I gotta say that it IS an issue for me, hence I am raising awareness of it.

I know it's not something you did, lag was always there. I was wondering if you have an idea of what exactly is causing it, and perhaps there's a way to disable this "waiting" and make home button react immediately, as on every other android phone I ever had.
[Galaxy S II Original Android Development] EarlZ:
Its the phone waking up from a deeper sleep state, plug in the charger and press the home button you wont see any lag since the phone is not in deep sleep state while charging, also Hacre had an earlier version of his kernel that disabled the deep sleep for the logger to run 24/7 for debugging it also didnt have deep sleep but idle battery usage was greater.
[Galaxy S II Original Android Development] tietherope:
It's not due to deep sleep. Have your screen turned on and hit the home button and there is lag.
[Galaxy S II Original Android Development] DarkDvr:
That's not the lag I'm talking about. That's the wake up lag.

I'm talking about home button lag while phone is in use, it's always there.
[Galaxy S II Original Android Development] hardcore:
That's probably an app design decision from Samsung. Maybe to differentiate single, double and long clicks.
[Galaxy S II Original Android Development] luminus:
Thanks for all the effort on this kernel. Using it and keeping an eye on this thread to see the progress.
[Galaxy S II Original Android Development] hardcore:
K1-T20:

- Minor updates to tweaks
[Galaxy S II Original Android Development] kendragon:
Please can you add support to mount ntfs?
[Galaxy S II Original Android Development] Pacifiste95:
Can i underclock my cpu with this kernel?

And undervolting is supported or not?
[Galaxy S II Original Android Development] nikzDHD:
Not supported in this kernel.
[Galaxy S II Original Android Development] Pacifiste95:
Thanks.

And can i flash it via CWM?
[Galaxy S II Original Android Development] nikzDHD:
Use CWM app and then choose flash kernel.
[Galaxy S II Original Android Development] fuze_freak:
I'm using kk5 with the hardcore kernel 19 test 2 and for some reason I'm not able to connect my wireless keyboard every time it connects to the phone it automatically deconnects. Now I don't know if this is kernel or rom related before this rom I had the stock that you came with my phone which was 2.3.4 KG7. Anyone know if this problem has happened to anyone else?..... I see a threat that talk about this but there was no solution.

Thanks in advance.

Send from my Galaxy S2
[Galaxy S II Original Android Development] mathsmart:
just flashed test 2 and everything working like its should and it feel better than siyah 2.6.6i ( AS IT, no OV etc..)

got crappy result on antutu but how care cause its really feel strong actually :D
[Galaxy S II Original Android Development] :
Any rep on battery life for test 2 yet? Test 1 has seen debating a lot, some say better than v18, some say worse...

Sent from my SGS2 - Hyperdroid v5.2 | Vertumus ICS Theme |
[Galaxy S II Original Android Development] rssf:
Today I encountered twice a problem: I pressed the power on key but nothing happened. Pressed again and again, and yet the screen was black. I couldn't tell if the screen was on or off, for it would look the same in daylight. Could this be kernel-related? I'm also using widgetlocker, could it do this? I'm running K2-18 on stock ROM.
[Galaxy S II Original Android Development] jonny68:
Am i right in saying this Kernel doesn't support custom boot animations?
[Galaxy S II Original Android Development] mathsmart:
yea its right but how care :D
[Galaxy S II Original Android Development] californicated:
Today my screen was turned on for about 2 hours when I left my S2 at home! Is the problem fixed in K-19 test2?
[Galaxy S II Original Android Development] jsompis:
I also got AOS problem with WiFi enabled.

K2-19T1 on XKW5 Deodexed.

Due to K2-18 have screen issue too, so back to K2-16.

K2-19T2 fixed them?
[Galaxy S II Original Android Development] knuckle03:
Can someone pls explain this, as you can see the phone is awake while the screen is off but in the BBS its seems pretty normal.
[Galaxy S II Original Android Development] knuckle03:
Heres the kernel wake lock, its seems pretty normal.
[Galaxy S II Original Android Development] dragon135:
I just realized that I have same issue.. In Settings > About phone > Battery usage, my phone Awake most of the time even though Screen on is very rare.

And this problem happens only in K2-19 t1; K2-18 is OK. I'm now checking with K2-19 t2.

Btw, even with this high Awake report, for me K2-19 t1 battery is much superior than K2-18.
[Galaxy S II Original Android Development] doongoo:
K2-19 test1 had no big differencies for me on battery usage as k2-18. Now I am testink k2-19 test2 and have almost the same baterry life as on k2-19test1 and k2-18, so no noticeable diferrence. Also haven't got any problems, all of the three are stable and smooth enoug. The only difference is, what I can notice is: voodoo louder works with k2-19 test1 and test2 :):):)
[Galaxy S II Original Android Development] californicated:
I had the same problem with k2-18
[Galaxy S II Original Android Development] knuckle03:
Im on 18 btw. Bbs says i dont have any huge wake locks bt on my post above settings > battery usage i got a huge wakelock bt battery hasnt drain much. Kinda weird..
[Galaxy S II Original Android Development] doongoo:
better battery stats is better to check your battery drain, than to look the phones battery usage statistics. But who cares, if the battery doesn't drains too fast.
[Galaxy S II Original Android Development] komsa:
.......after my "experience" with K2-18 i tried K2-19 test1 and my battery drained much faster then with K2-18 so i returned back to K2-16 and this is what my phone achieved without "screen issue" :
[Galaxy S II Original Android Development] Fille84:
It's impossible to see the pics dude..
[Galaxy S II Original Android Development] komsa:
i changed the links,try again.......... :)
[Galaxy S II Original Android Development] Fille84:
Yeah, it works now :)
[Galaxy S II Original Android Development] y17dt:
I´m absolutely fine with K2-19-Test2

seems to have good battery-consumption (something like with K2-18-final).

But no problems anymore. No "Screen-on-issue" anymore. No Interfacelag after Waking phone up. Seems very good to me.

THANK YOU hardcore
[Galaxy S II Original Android Development] v1rtu4l:
i used the speedmod kernel for a while and then changed to various siyah kernel versions for 2 month or so and OH BOY am i relieved to be back.

all the hussle with underclocking/undervolting, init.d scripts and the whole crap and fiddling around... many releases by siyah that where outright buggy and did always have some of his advertised features not working for many people.

siyah is really a pain in the ass and the fact that i instantly without fiddling around got more than 30% more battery life out of my phone compared to the usage of siyah kernel says it all.

siyah might be ok for people who don't use their phone and don't look at on-screen time, but while actually using the phone i got more than 4 hours on screen time with my personal phone usage which includes many hours of mp3s and podcast listening, watching videostreams on ustream, using the ocasional google maps and of course a few hours of telephone calls while on siyah i most of the time only got 2,5 hours out of it.

forza hardcore =)
[Galaxy S II Original Android Development] cipetonk:
k2-19-test2 is a good news :D

tested by using Let's Golf 3 HD & Quadrant, it's performance is a bit lower than k2-18 and battery is cooler. Fair

much better than k19-test1 :D
[Galaxy S II Original Android Development] tk142:
kt2-19 test 2. 2000 mAh Samsung battery.

automatic sync always on

brightness on auto (love the gorgeous screen!)

push exchange on sync is every hour

CheckRom Revo HD4

mostly on 3G instead of Wifi :)

and this is the first cycle... should get better over next cycles.

edit: have a few beers on me hardcore ;)

9SK002031T606260V
[Galaxy S II Original Android Development] v1rtu4l:
that is pretty similar to what i get with 19-test1 also with a 200ß mAh Samsung Battery
[Galaxy S II Original Android Development] alcurtis93:
Stop using quadrant and try antutu which is designed for multi core systems
[Galaxy S II Original Android Development] KeesStolk:
Tested K2-19 test2 and again, like test1, i see more battery drain of Android OS when wifi is on.

Test 2 is better then test 1, but still not as battery friendly as K2-18.

Speeds and smoothness are great with all 3.

I am using a Netgear DGN3500 router by the way.
[Galaxy S II Original Android Development] ProNewb:
Hi guys,

been using the k2-18 verdion for 25 days now. battery life is definately improved.

i did experience 2 probs :

This happened 3 days back. When i press unlock button, the screen would not turn on. the phone was awake (i could feel the haptic vibe from back and opt button) but no matter what i tried, the screen stayed off. Had to remove the battery and restart.

the following is happening now. the screen is on, but does not respond to my touches. after a few minutes, the screen does not go off. and it shows no signal. going to take the battery out now.

both the situations, i have uc my phone to 800 and 1000mhz ondemand respectively.

in future, i will try to avoid uc.
[Galaxy S II Original Android Development] californicated:
Yesterday I saw a friends stock S2 laying on the desk while charging and....the screen was turned on.

When my screen didn't turn off it was also charging. So I think this

problem might not be kernel related.
[Galaxy S II Original Android Development] ProNewb:
But mine was not kept for charging
[Galaxy S II Original Android Development] sageman70:
I second that. Test2 is better than test1.
[Galaxy S II Original Android Development] It_ler:
Results for SpeedMod / Phenomenal / void / N.E.A.K. / Siyah / stock kernels

Everything is specific to my phone, my "normal" usage and my home location. Most values are exact results, but some are rounded. I usually have wifi, synch (three email accounts, calendar and news), Google Talk and Skype on.

For all custom kernels, I was running on Frankenstein XWKL1 ROM (Modem: XXKL1).

For stock kernels, I was running on the corresponding stock ROM.

Always using the Samsung's standard / stock 1650mAh battery.

For void.echo I enabled the UV - nothing else.

For Siyah, as it has many, many configurable settings, I have changed nothing - just default settings.

For N.E.A.K. 1.x (Lulzactive) I tested the default setting with VR schedule and Lulzactive governor – nothing else changed.

For N.E.A.K. 1.2 (Lionheart) I tested SIO schedule, Conservative governor and Lionheart tweaks enabled – rest unchanged defaults.

For N.E.A.K. 1.3 (Lionheart) I tested VR schedule, Conservative governor, Lionheart tweaks and sched_mc enabled – rest unchanged defaults.

Tested SpeedMod K2-19-test2 and added its results.

Here are my current results:

Benchmarks

Battery stats

SpeedMod K2-19-test2 is very smooth with good battery savings on my phone.

Always a very good choice when you do not want to configure many settings manually or by (init.d) scripts.

I keep testing new kernels / versions ...
[Galaxy S II Original Android Development] komsa:
.........testing the K2-19-test2 at the moment and for now it is fantastic(no screen issue), for 14 hours of light usage i still have 88% of juice(with normal stock battery).It reminds me of SpeedMod kernels for I9000 i use to use when i had I9000.....thanks Hardcore,you did it again :)
[Galaxy S II Original Android Development] jonny68:
Indeed just to echo some peoples sentiments the latest Test 2 is very good indeed overall for smoothness and battery life, again well done to Hardcore i donated already last month but when i get paid again ill make another small donation:)
[Galaxy S II Original Android Development] hardcore:
K2-19-test3:

- Slightly more aggressive GPU DVFS speed increase
[Galaxy S II Original Android Development] iCatchU:
Thx HC! Flashing test 3.....
[Galaxy S II Original Android Development] Fille84:
So it sounds like test3 will be worse for for your battery?
[Galaxy S II Original Android Development] komsa:
K2-19 test2,live wallpaper all the time...........i am speechless,fantastic kernel :)
[Galaxy S II Original Android Development] ephraim:
Nevermind

10char
[Galaxy S II Original Android Development] d8389:
deleted......
[Galaxy S II Original Android Development] morg01:
Test 3 is very snappy, all good so far :-D

Sent via courier pigeon
[Galaxy S II Original Android Development] BrandoHD:
Has anyone had any issues with the screen changing colour while running Test 3?

Have to ask as I was on stock kernel for the past week or so, then after flashing Test 3 and hour ago, the screen just changes to a yellow tint when I unlocked the device, turning the screen off and on again fixed it though.....
[Galaxy S II Original Android Development] androidkid311:
Grrrr! Why cnt i flash it via cwm? Like how your supposed to. Just says "aborted" (bad). This is the first! :-/. Odd one

looks like an iphone but powered by android baby!!!!
[Galaxy S II Original Android Development] CamoGeko:
Could be just a corrupted download, try downloading again. Maybe to a different location, say external sd. ;)

Communicated using an SGS2 droid with XDA premium neurotransmitter while DJ'ing on the Death Star.
[Galaxy S II Original Android Development] mathsmart:
Test 3 run very smooth and seem good on batt ! Came from neak 1.3.1!
[Galaxy S II Original Android Development] alcurtis93:
Just switched to this kernel and find it a bit too slow to ramp up to a higher frequency. Please change up sampling time
[Galaxy S II Original Android Development] sageman70:
Works fine but there seems to be a slight problem. Sometimes when the phone goes to sleep when u try to wake it, the home button works but the menu and back button refuse to appear or activate which of course means it requires a reboot. I cant logcat this error because it happens quite randomly e.g. sometimes at 2am.
[Galaxy S II Original Android Development] KeesStolk:
Wauwie, almost a flat line at battery usage from this nights standby!! :).

Nice, lost less then 3% with 7hours standby.

Antutu gives a real low score, normally i get around 6000 and now it's around 5000.

But, all is running smooth, all apps running without problems, the only game i playing is Angry Birds and it's runs great.

Me happy so far.
[Galaxy S II Original Android Development] knuckle03:
Guys when you report a problem please state what kernel version are you. Thnx.
[Galaxy S II Original Android Development] pikachu01:
You should use the performance governor when benchmarking.
[Galaxy S II Original Android Development] KeesStolk:
I don't care much off numbers from benchies, Antutu is the only app i will have a test run.

For me, if it's run smooth, apps running without problems and not noticeable starting slow, scrolling on homescreen is not sluggish and getting a great battery life, these are the things that's are important to me personally.
[Galaxy S II Original Android Development] Pfeffernuss:
Why, when you also do the same test the same way with other kernels? I want to know how a kernel performs with a "normal daily" governor, which Performance is not.
[Galaxy S II Original Android Development] planetf1:
I notice test 2/3 disables AFTR.

What exactly is this mode? Is it whereby the l2 cache is maintained whilst the cpu is idle? So is the idea to save time restoring/refreshing data when the cpu works?

Is the disabling in 2/3 to address bugs, or to see if it is actually helping at all?

Many thanks for the great kernel (am currently on k2-18)
[Galaxy S II Original Android Development] pixiebob:
problem with all k19 during night in flight mode i can loose 20-30% battery.with k18 i loose only 2-3% maximum.
[Galaxy S II Original Android Development] tk142:
Lost 0% with test 3 over a 7 hour sleep with original 1650 mAh battery and phone in flight mode. Not kernel related.

See attached.
[Galaxy S II Original Android Development] hardcore:
K2-19-test5:

- GPU base clock set to 167MHz instead of 160MHz

- Disabled some more debug logging in the kernel
[Galaxy S II Original Android Development] shroman:
k2-18 bluetooth bug

Bluetooth HID (keyboards specifically) does not work with SpeedMod K2-18 u3. Works with stock kernel and does not witj k18. Keyboards connects and disconnects constantly. Previously I thought the problem was with the Firmware version, but no it's kernel related. Checked on: KK5,KL1,LA2 the strange thing is, while using KI4 with speedmod Bluetooth HID worked perfectly, starting with KK stock series, getting problems with bluetooth HID.

All firmware used are stock and odexed.