yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] nikzDHD:
Please read this thread even a few pages back, a user has posted up links to what the governors are and users even mentioning what governors they use and why with one user even mentioning a governer he uses is good for games. Reading will do you no harm as well as searching.

As for what you can use, yes setcpu, voltage control, no frills, cpu master and such.
[Galaxy S II Original Android Development] TecQuality:
Totally agreed, the 'stable and bug free' concept over CM is totally different.

Delivered directly from my GT-I9100 using xda premium
[Galaxy S II Original Android Development] pixiebob:
this kernel is better and better, wait new feature like sched_mc_power_savings in beta9.
[Galaxy S II Original Android Development] yoplaboum:
2.2b8 doesnt work. No gsm and no data connection... I return to 2.1b14... ;)
[Galaxy S II Original Android Development] CamoGeko:
Beta 8 works fine here, maybe it's your modem or rom.

Transmitted from a Galaxy far far away via XDA lightspeed telepathy.
[Galaxy S II Original Android Development] rauschkugl:
You're not even using this kernel and asking for governors here? This is a development thread for siyah and not q&a for governors! You didn't even read the last few pages or the first post.

Sent from my GT-I9100
[Galaxy S II Original Android Development] frankcilo:
Beta 9 work fine for me, on 2.3.5 KJ2
[Galaxy S II Original Android Development] eason101:
anybody else still experiencing bluetooth issues? even on beta 8 i can't connect to my car's bluetooth. it works intermittently on beta 6, but not at all on 7 or 8. not sure if it's both miui's issue or solely the kernal's issue though. i've tried flashing 3 other modems. none of them helped.
[Galaxy S II Original Android Development] chadouming:
I also have the problem on B8 with MIUI. No prob on B6 btw. Back to sammy release now, gonna see if it still happen with b9.
[Galaxy S II Original Android Development] dave_p_b:
2.2b9 working well on Rarity 3.9 KJ1 rom. Thanks. :-)
[Galaxy S II Original Android Development] ghost77:
EnableLogger.zip doesn't help , app protector doesn't work , and unless you have a better recommendation your crapp comment is very insulting.
[Galaxy S II Original Android Development] Vulpix:
Huzzah! Lag in browser gone in beta9! Woot!
[Galaxy S II Original Android Development] lpsi2000:
BT and Galnet MIUI ICS

Bluetooth seems broken on beta 8 and 9. I can't use my BT headset for calls on the lastest Galnet MIUI. I think it is related with the fix that was introduced in Beta 8
[Galaxy S II Original Android Development] Vaedryn:
Hm, my internal sd show me error with beta 9 , cant use it .

CM7

Back to Beta 6 and SD Card works

SGS II Cyanogen Tapatalk
[Galaxy S II Original Android Development] lpsi2000:
Yes, BT is broken and it is a kernel issue.
[Galaxy S II Original Android Development] gippy2:
Lol Muppet
[Galaxy S II Original Android Development] olifee:
@gokhanmoral:

New release works perfect here :).

BIG EDIT: I found the reason for the following problem! It appears that a backup with CWM 5 to external SD created a .salted_hash there, or it was caused by my flashing CheckRomRevoHD 3.1.1 which includes CF-root. At least, that meant my internal AND external SD had an SD-card marker. That's why CWM 5 apparently switched the mount order. So to anybody also encountering the problem described below, check your markers ;).

-------------

However, finally the CheckROMRevoHD-Kitchen broke for me ;).

The Kitchen-App (storing all packages on internal SD) passes a path like

"/sdcard/download/..."

to CWM 5, but if I boot to CWM 5 myself and select to install a zip from internal SD, and choose the same file via the menu, it installs from

"/emmc/download/..."

So the menu correctly says "internal SD", but the mount-point of the internal SD appears to be "/emmc", while the kitchen (and probably also other tools) seem to expect "/sdcard".

EDIT: I am on 2.2b9, CheckROM RevoHD 3.1.1 (at least the version of the kitchen is 1.2.3, as in older CheckROMs, so I guess this did not change).

Thanks for all the other nice features and fixes :).
[Galaxy S II Original Android Development] joeyfong:
My microsd card cannot mount, I am running cm7
[Galaxy S II Original Android Development] iamsmallpang:
CRR v2.0 and CRR3.1.1 working fine flashed v2.2 beta9

gREATwORK
[Galaxy S II Original Android Development] xBlackDroid:
i dont see any problem with Beta9, Thnx for fix the led's issue
[Galaxy S II Original Android Development] timberwolf60:
I was on deodex xwkj3, ext USB card can't detected in PC else CWM backup restore no problem. Flashed back to bata 8 at the mean time.
[Galaxy S II Original Android Development] antt00:
Just to report Beta 9 on samsung rom (CRR 2.0) turning touch key light off is not working again. Other than that no issues encountered.
[Galaxy S II Original Android Development] spaxx24:
SOmething ****ed uped happend last night. I went to sleep with battery ~45%. But it on charger. When I woke up the phone was at 0% :OO

Battery usage doesnt tell what app drained, and Batterystats doesnt show any wakelocks. WTF :D

edit: beta8
[Galaxy S II Original Android Development] crypticc:
Info, ROM, siyah version. Or Q&A
[Galaxy S II Original Android Development] navdra:
2.2b9 works great so far on Oxygen 2.3.2 with KI4 modem.

Only issue I encountered so far is that both QuickPic (probably Gallery too) and Music apps see external SD card contents twice:

/mnt/sdcard/external_sd

AND

/mnt/emmc

I have my Music and some of my photos on external SD so it's an issue for me.

Maybe /mnt/emmc could be removed? I don't see a reason to keep it.
[Galaxy S II Original Android Development] gokhanmoral:
right... you can always create a symbolic link from /mnt/emmc to /mnt/sdcard/external_sd

I am removing /mnt/emmc for beta10
[Galaxy S II Original Android Development] :
Just tested connecting sgsii to computer on galnet miui w. beta9 and I can access internal sdcard no problem and when I disconnect usb debugging icon is not shown.

so I don't know what is the problem..
[Galaxy S II Original Android Development] gokhanmoral:
thank you :)

I was about to install galnet miui to check that. you saved me a lot of time.
[Galaxy S II Original Android Development] :
no problem. the version I am running is 1.11.9 (ics framework build).

:)
[Galaxy S II Original Android Development] kishd:
I am running beta8. I noticed that if my init.d S scripts are not followed by a number eg. S90_*** etc they do not execute at boot. Unfortunately Voltage control does not have a number following the S init script so it does not execute at boot. A workaround is simply to rename the init scripts.
[Galaxy S II Original Android Development] Rawi666:
I noticed an issue when phone is in deep sleep and has wifi connection.

When I have my phone in deep sleep and go to an area when there is no wifi, and then I go to another area with different wifi network the phone logs out from gsm network.

It does not always happen but I would say it's very often.

The result is that when I wake my phone I need to provide my pin number (which is weird, i should be asked for pin only after phone reboot) and I can see in battery life chart that phone signal has red bar (it should be yellow).

The same issue occurs on XWKI8 and XXKI3. I haven't tested it on other roms. I use siyah 2.1.
[Galaxy S II Original Android Development] freemini:
I just flashed 2.2b9. I'm running KJ3 official. I'm not a technical guy(I understand what adb is but can't use it) but I'm willing to help if you need anything. I decided to use 2.2 because I've read the changelogs about those secondcore tweaks and I think they'll help with battery. I'm also going to undervolt.
[Galaxy S II Original Android Development] gabx:
I am one of the people coming from cm7, and I can tell you:

cm7 + siyah Kernel is working like a charm. I use this configuration for many weeks now, with absolutely no problems.

You are right, many people confuse between cm7 issues and kernel issue. They should pay more attention to their issues, and try to separate the ROM and the Kernel as for what is not working properly.

As for the original post about S2 settings in the cm7 menue, if it is greyed, Siyah Kernel has nothing to do with it. The guy should update to the last nightly build (114) AND the setting menu will be activated.
[Galaxy S II Original Android Development] greatmagician:
mouse,keyboard and tun.ko for openvpn not working in beta9 I hope the problems will be solved...:(

ntfs working :)
[Galaxy S II Original Android Development] xan:
Are you completely sure? I think that it was executed anyway, but it cant really set scaling_max_freq -> everything else is setting correctly for me.

For me even simpliest script:

#!/system/bin/sh
echo 1000000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

named "S91voltctrl"

doesnt seem to work... I can execute it from shell but settings arent applied upon boot.

//edit: this:

#!/system/bin/sh
echo 1000000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
echo 500000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq

sets min_freq, doesnt set max.

/edit

I forgot its beta8, gonna update and repport, sorry.
[Galaxy S II Original Android Development] gokhanmoral:
it is a known problem and it is not related with this kernel only.

I tried to find out what reverts that scaling_max_freq back during boot but I couldn't.

when I have time, I will examine more.

can anybody try the same script on cm7 to see if it is reverted to 1200000?
[Galaxy S II Original Android Development] :
works on galnet miui.
[Galaxy S II Original Android Development] Tendou:
Thanks for putting your hard work and effort to bring out this great kernel.

I am very interested in the 120 FPS limit on the camera now, because I read the spec sheet on our camera module here:

http://www.sony.net/SonyInfo/News/Press/201010/10-137E/

It clearly says that our camera module is capable of 120 FPS, but only at 1/8 sampling rate.

I have been searching and reading about 100 pages of this thread in one setting, I see a few people asked about the camera FPS change, but not much information was given in regards to how to make use of this FPS change.

gokhanmoral or others, can you please direct me to where I can find more information regarding making use of the camera's high FPS capabilities?

Thanks.
[Galaxy S II Original Android Development] TecQuality:
so voltage control doesnt run w/CM and Siyah? :o
[Galaxy S II Original Android Development] kishd:
Voltage Control does work it's just the set on boot script does not stick.
[Galaxy S II Original Android Development] Annihlist:
Hey I'm on cm7 with beta9. The change in mount point is nice however, creating a simlink causes duplication in the gallery which can be annoying :) love your work
[Galaxy S II Original Android Development] BULL3TPR00F:
Not seeing duplicate gallery stuff here...

No BLN? The app says the liblights aren't supported.

Running CheckROM Revolution HD v3.1.1
[Galaxy S II Original Android Development] CZ-Iceman:
Hi Bluetooth does Not working on 2.2 beta 9 Wirh last MIUI. With 2.1.1 Bluetooth works OK.
[Galaxy S II Original Android Development] antt00:
Voltage control script works fine on boot for me. My governor settings, UV, GPU UV was all set at boot. The only problem is the max freq setting that the OS will somehow revert back to 1200 if you use init.d scripts. Its not related to voltage control nor the kernel and is a known problem.

Use setcpu if you want to change the max freq at boot as this app does not use init.d scripts.
[Galaxy S II Original Android Development] fasst:
The problem with max_freq not sticking is, for some, is the mediascanner running at boot and somehow make this happend.

If you edit the script and put 'sleep 30' on top, the problem is solved. At least it did for me. Maybe it has to do with the size of external_SD, file structure, type of files etc. that make mediascanner run for quite a while and interupts the script. I have about 2000+ mp3's, some movies, etc.(16GB card) and maybe that's the reason why max_freq wouldn't stick in then beginning, before I but 'sleep 30' on top of the script.
[Galaxy S II Original Android Development] chiggah:
getting terrible drain with 2.2 beta 9 with CM 7.1 #114
[Galaxy S II Original Android Development] kishd:
I did notice this. However I have media scanner disabled. I only enable it when I have added additional items.
[Galaxy S II Original Android Development] xgeneralex:
When call me screen wake up after two phone rings... 2.2b9
[Galaxy S II Original Android Development] TecQuality:
u disabled this manually? anyways i seen that now the scanner is much faster than before ...
[Galaxy S II Original Android Development] iamsmallpang:
can you flash back v2.2 beta 6 first and then re-flash the last v2.2 beta 9 :)
[Galaxy S II Original Android Development] kishd:
@TecQuality

No used rescan media root from market.
[Galaxy S II Original Android Development] shahulvm:
2.2 beta 8 was excellence at best

2.2 beta 8 was excellent...had one of the best battery life coupled with good performance..

Siyah has lot of choices(oc/uv/governors)...i had used lulz governor and got excellent battery life and performance. in Siyah, the battery life is taken away by the display..I switched to speedmod kernel, as it has lower display battery consumption...otherwise for a normal user both kernels are just fine..
[Galaxy S II Original Android Development] TecQuality:
that's a great tip mate ;)
[Galaxy S II Original Android Development] Ferdimage:
same here is this a gov issue?

I have not Under or Overclocked...
[Galaxy S II Original Android Development] Dark_Lord0122:
its gov matter ,, i guess lulzactive
[Galaxy S II Original Android Development] spaxx24:
Just me or doesnt touchbuttons LED turn off in beta9?

Cyanogen #114
[Galaxy S II Original Android Development] CamoGeko:
Do you not read the last few pages?

Transmitted from a Galaxy far far away via XDA lightspeed telepathy.
[Galaxy S II Original Android Development] gokhanmoral:
did you try screenfilter app from the market?

I was thinking about lowering the brightness levels but that app changed my mind. You can lower brightness level by yourself.
[Galaxy S II Original Android Development] gokhanmoral:
it is not you only, but I do not have that problem.

I set to touch light duration to 1.5 sec and it turns off after 1.5 secs.

I set them off and then on... there is no problem on my phone.

I cannot reproduce that problem.

EDIT: sorry, I didn't try it on CM7. I will try it tonight. maybe it is CM-related.
[Galaxy S II Original Android Development] energie:
Hi gokhanmoral,

is there any way to integrate screenfilter inside your kernel and add a shortcurt button\action or something?

thanks
[Galaxy S II Original Android Development] shahulvm:
Brother, I would suggest to lower the brightness level...as the screen is bright at the lowest level also..

Had excellent idle state battery life. While using the phone, the battery life just vanishes..not becos of the kernel, but becos of the display...otherwise your kernel was the best for me..

---------- Post added at 11:26 PM ---------- Previous post was at 11:20 PM ----------

With the screen filter app, your kernel is going to be the best....

Is it possible to tweak the kernel code to lower the brightness..
[Galaxy S II Original Android Development] xgeneralex:
it is a governor matter. I also have a little battery drain ... then I went back to 2.2b6
[Galaxy S II Original Android Development] droidphile:
@Gokhan

One silly question :)

sched_mc value of 2 in Beta 9 means biasing task wakeups to semi idle cpu package. Since our GS2 has only 2 cores, it means on task wakeup it is biased towards cpu1 since cpu1 is more idle in hotplug mode. (Also since threshold is set to 70, cpu1 tends to be more idle).

So will the value "2" attempts to load cpu1 more, even when task can actually be handled by cpu0 alone.

Or will the threshold 70 actually prevents this load balancing on small loads.

EDIT: Semi idle could mean it bias towards cpu0 thus preventing load on cpu1. (semi-idle equals semi-loaded). Why was i thinking of fully-idle when the word is actually semi-idle.
[Galaxy S II Original Android Development] gabx:
From cm7 forum :

The menu and back buttons when the light goes off (backlight timeout 5sec), they stops to work.

When the backlight timout is set to stay always on the button works just fine.

I do think IT IS cm7 related.

It doesn' work on my phone, even if this issue is supposed to be solved (http://review.cyanogenmod.com/#change,9902)
[Galaxy S II Original Android Development] TecQuality:
hello fellows, testing b9, i've also noticed a little drain ... so back to b5.1 ...

---------- Post added at 05:59 PM ---------- Previous post was at 05:46 PM ----------

@gokhan: i can reproduce it :)
[Galaxy S II Original Android Development] LockeOn:
I love the original external_sd mounting for AOSP roms. Great work gokhanmoral!
[Galaxy S II Original Android Development] deoneR:
using beta6 7 8 or 9 i'm not able to access my sdcard with CWM or with micro usb cable..

using newest gingermod rom

with 2.1.1 it's working
[Galaxy S II Original Android Development] Idan73:
And I would petition against this on the kernel level. Defaults are fine. Those that want to squint can use app or lower brightness themselves via mod or keep screen turned off.

Sent from my GT-I9100
[Galaxy S II Original Android Development] droidphile:
Using same rom. Absolutely no problems here. Try uncheck, recheck usb debugging. Then connect usb cable.
[Galaxy S II Original Android Development] kickassdave:
Am I seeing things or is this not mentioned on the website itself? Beta6 was supposed to work though was it not? Meh, it ain't the end of the world for me.
[Galaxy S II Original Android Development] crypticc:
Gokanmoral

Happens to me on kj2 stock. so not just CM7.

Timer works fine.

Always off does not.

Initially goes off, but turns on again when exit the settings menu.

You need exit the display setting.
[Galaxy S II Original Android Development] ayamary:
Hmm, I'm on 2.1.1 (miui 1.11.11), and I am losing SD card access. I have to reboot the phone to regain access to it again. Remounting the SD card or turning debugging off and on does not fix it.

Are you using miui? It could be the fault of miui and not the kernel.
[Galaxy S II Original Android Development] tristecire:
@ gokhanmoral

Tonight i made a little websearch about something i've read earlier this year.

At that ( far away- end of spring ) time i used and liked a kernel, derivative of coolbho3000'one, tweaked and compiled ( no sources, alas, or maybe i'm bad ) by a japanese guy, very battery efficient indeed ( I'm a kind of backpacker, sometimes, and don't like to carry chargers, especially GB heavy ones with adapter, when you're french. that one cames back from 15 days hiking with 50% battery, mainly off, but 10 boots, and 10 calls/sync/SMS, a good one )

thread here :

http://xdaforums.com/showthread.php?p=14249518#post14249518

this guy said :

Yep, you are right. ARM core undervolted is not enough

I released new kernel. I undervolted not only ARM core and

TouchPanel

, but also

LED

, GPU,

bus, framebuffer, etc

....

last alive web signal ( end june 2011) of this Japanese guy here, on his own website :

http://chai99.wordpress.com/2011/06/23/sgs2-kernel-uv-oc-cf-cwm-2/

He clearly talked about undervolting some more things, like Touchpanel, LED,

bus ( you UC, i know, i like, but UV !! ) and framebuffer. All that by a kernel way.

No source code left over i think, but maybe some more ideas for further battery life gains ( or not) .

Thanks again for this exciting state of mind you give us.
[Galaxy S II Original Android Development] scorpion667:
Depends if all those things use voltage regulators. And not all phones would behave the same if everything is undervolted, some might get corrupted, bootloop etc.

An interesting idea though.
[Galaxy S II Original Android Development] tolis626:
But the question rises:Do the possible gains in battery outweigh the possible->certain troubles with stability/funcionality?Well,no,they don't.It doesn't have to cause problems with every device,but it will with some.
[Galaxy S II Original Android Development] tristecire:
you're right. safety first, for a whole batch of wild ROM's.

But when everything is always done, something comin' from the past may bring some old/new ideas (or not, i agree).

That old timer kernel was pretty stable, but it was a long time ago, different rom, different Sammy source code, different season... And i know gokhanmoral wants to make the ONE kernel for all of us.

It was just a kind of question. To gokhanmoral. If he minds.
[Galaxy S II Original Android Development] tolis626:
You did well to ask as it wasn't some stupid question like "How do I underclock?". :)

It's just that undervolting the CPU and GPU is one thing for stability.Undervolting everything will make it pretty damn hard to pinpoint issues.When this kernel reaches a state that everything is working as intended for most,if not all,people,then it'll be time for such things. :)
[Galaxy S II Original Android Development] tristecire:
If those things don't use a voltage regulator

then i know ( the website of ) a Japanese liar.

But. The experience was pretty good ( July-august ).

But. Not so good. One more time...here on xda.developers.com : No source code.

Then, i'm convinced, but not wanting to convince you or anyone.

He, you should try that old timer kernel !!!

links are ok, 1504 mhz OC only, and there were just some words on a sleeping website.

Best regards scorpion667, your answer was a kind one.

---------- Post added at 11:38 PM ---------- Previous post was at 11:18 PM ----------

You're kind.

I'm just tryin' to put my own experience in the thread, i'm just an user, it's nothing like a fight,

I know this kernel is a real dream for you and me, and gokhanmoral keeps the rights to retain or not the ideas we put here.

My I9100 has a no journal ext4 filesystem, from the old ( alive ? ) I9000 threads, and some more "about battery life" tweaks.

And i really like ( need ) a stable Android smartphone. But just more battery efficient every week, he !
[Galaxy S II Original Android Development] shahulvm:
Auto start Screen shade app

HI Guys,

Any idea if we can auto-start the screen shade app to further reduce the brightness of the phone to gain better battery life..speedmod kernel has lower brightness value, so looking for an alternative.. :p
[Galaxy S II Original Android Development] RedWave31:
Hi everyone!

Now that i've managed to have a 2ma drain without data, and uber-fine tweaked anything, I've got a new project for my GS2 ^^

Question : Can we stop the phone from charging when reaching 4000 mV?

> You may think that is stupid, cause that would change the default battery from 1650 to 1450 mAh. However, from my extensive readings, military-grade batteries never go above 3.9V nor under 3.3V to stay in the 20 to 70% charge range.

I'm not willing to keep my phone more than a year or so, but I've read that a frequent charge within these parameters is better than long and full charges.

Any clues?

Thanks!