yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Original Android Development] alinawyx:
ah i did it with es file explorer ;) i didn't know how to access system folders using es file explorer initially, but i managed to do it after a little exploration :D i don't actually do much except to flash custom rom and kernel, so i didn't wanna pay for root explorer since i won't be using it much or at all, if nothing like this happens again..

in any case, Thanks for everyone's help!!! :D
[Galaxy S II Original Android Development] geekiest:
Try Super Manager

https://market.android.com/details?...iZ3BjLm15d2ViLmhpbmV0Lm5ldC5UYXNrTWFuYWdlciJd
[Galaxy S II Original Android Development] kimitza:
Question, is it just my phone or the fps cap is locked to 30 fps?..i mean, in any test i tried(antutu,nenamark,smartbench,linpack,quadrant) tje phone can't get over 30.

As rom i'm using Tornado2 by brotuck,wich is basically an ultralite stock.

Beside that ,echo is smooth,good battery life(i used igo for about 3.5 hrs)..

Thanks..
[Galaxy S II Original Android Development] ephraim:
Cap for sgs2 i9100 is 60..
[Galaxy S II Original Android Development] bungknees:
Knzo, ideal bro. Echo kernel is SOOOOOO good. Super smooth, fantastic battery life, deep sleep just doesn't drain hardly anything. Its Awesome. Performance without any OC is the best yet.

Great kernel, thank-you.
[Galaxy S II Original Android Development] Igor 3:
I dont use UC,UV or anything like that because its to complicated but using this echo kernel on default is amazing. Very smooth and good battery.
[Galaxy S II Original Android Development] Tombias:
Much smoother and faster than siyah kernel

Thanks for this wonderful kernel.
[Galaxy S II Original Android Development] theooo:
Hello knzo, i've been using echo for almost 1.5 day and my phone are very fast and smoothh!! Great work!! :D

Im using no uv and filesync enabled, but when i tried to explore void settings i found there's option to disable filesync and also disable journaling, so i got a few things that im curious about.

1. When u introduce that in ur kernel u disabled filesync, i thought what u disabled is journaling on /system, /data, and /cache. But now i realize there's also option to disable journaling.. So what the difference between journaling and filesync??

2. As far as i know, disabling journaling on ext4 will lead to data corruption when there's situation like turning off phone by pulling battery or other condition where system didn't turned off properly.

And from what i read, i found there's two solution for this matter, first by using e2fsck on boot and another one is by changing the journaling method to data=writeback. This should reduce writes and improve performance at a slight expense of reliability.

My question is do u use one of those method or using another method to preserve data from corruption?

Thanx in advance dude, please correct me if im wrong since im just a user with mediocre knowledge :)
[Galaxy S II Original Android Development] linggo:
+1 exactly

im on MIUI GALNET ICS 1.11.9 so far so good... keep up thank you :)
[Galaxy S II Original Android Development] knzo:
1. It's two different things. One is regarding on how I/O operations themselves are made and the other is a mount flag of ext4. However, both share the same advantages and disadvantages.

2. My ext4 removal involves setting data=writeback. Data=writeback still causes data loss. It never happened to me but some people I knew lost some camera snaps because of it.
[Galaxy S II Original Android Development] alinawyx:
sorry if i'm asking an off-topic question, i'm a newbie and i really like to know more.. i read from some articles and forums saying that fsync() only functions when phone crashes or when user takes out the battery when phone is not switched off.. is that true? if so, how does it actually slows down the performance? please bear with my newbiest :o
[Galaxy S II Original Android Development] maxvanni:
fantastic kernel, seems to be very good, gonna test more and more :)

keep it up bro!
[Galaxy S II Original Android Development] lynx2k50:
Is the "ring - screen on" delay fixed?
[Galaxy S II Original Android Development] theooo:
Thanx for your explanation dude :D

Can i ask one more? U said u it never happened to you, is this mean u already tried to pull battery and no data loss or u never experience this because u never had unwanted shut down?

I dont have this on echo, if u experience any, make sure u are not using any screen off profile either from application like SetCPU or init.d script.
[Galaxy S II Original Android Development] cescof:
Hy... After one day with echo kernl, i've updated andromeida rom to the last rev.

Now i've to much battery drain and looking to battery stats i've big value on vbus_present wakelock..

Is it ok??

Any other suggest to came with normal battery drain???

I really love this kernel but now it's to much expensive in battery drain

Regatds
[Galaxy S II Original Android Development] Remoteconcern:
That's the wakelock held when the phone is charging. All the kernel wakelock times are since boot, rather than since charged, like the user wakelocks.

Hope that helps
[Galaxy S II Original Android Development] mystifiyer:
Is it actually possible to support automounting of NTFS storage via OTG?

Those available on the market does not support GS2.

So far, the only methods I know of is via terminal emulator and Script Manager. Though I have instances of Script Manager not working randomly or totally.

If there is an easier alternative, please share if possible.

Thanks
[Galaxy S II Original Android Development] wurzelsepp3:
Siyah Kernel 2.2 automounts NTFS to /mnt/usb (read only).
[Galaxy S II Original Android Development] byobodybag:
Installed and looks very promising. Gave me like a 700+ more on Quadrant and I know my phone doesn't make that much especially when I've tried different kernels.

Its rocking deep sleep really well, and looks gentle on the battery. Not to mention its quite fast as well.

One thing, where is the init.d folder? I can't seem to find it with Root Explorer in \system\etc\init.d?
[Galaxy S II Original Android Development] theooo:
Do your rom supports init.d? If itu it's not u cantik easily create it via root explorer orang other app. :)
[Galaxy S II Original Android Development] byobodybag:
Yes, Batista ROM supports init.d scripts. I had the folder in there before installing void.

So does void delete the whole folder?
[Galaxy S II Original Android Development] theooo:
Yes installing void will delete init.d scripts but idk if it will delete the folder too because i modified instalation scripts before flashing it to my phone :)
[Galaxy S II Original Android Development] mystifiyer:
I wouldn't touch Siyah with a stick if I could. I was a previous migrant from Siyah 2.1 (migrated too from Speedmod).

Previous problems from Siyah included lost of GPS functionality, SOD and scroll lag.

For SOD, its highly random, with or without OC. No UV was ever involved.

Speedmod was stable but hardcore is very adamant about not providing BLN or OC of any variant. So I skipped that over to Siyah to only encounter the SOD etc issues.

NTFS automount will provide the convenience I would certainly love to have but not compulsory as in "do or I jump ship" scenario.

This kernel is surprisingly the ONLY one that allowed me to run at 1.6GHz stable without additional voltages.

Unbelievably true :D
[Galaxy S II Original Android Development] Jagdish84:
It does delete the folder as a whole, happened to me as well...
[Galaxy S II Original Android Development] Mighty_X:
Got random reboot after using my phone in the morning after some hours of sleep... Waiting for custom boot ani...
[Galaxy S II Original Android Development] Gorjess:
I still dont understand what 'rawr' means that you show in quadrant on first page.. kinda like better i/o?

On the other hand this kernel is very light and snappy. gj :D
[Galaxy S II Original Android Development] s2d4:
No, it gives you a big e-penis in quadrant... Doesn't help you in any other situation at all..
[Galaxy S II Original Android Development] cescof:
Hy somebody can tell me wich table of UV is stable with this kernel?? (i know any phone it's different )

Regards
[Galaxy S II Original Android Development] Gorjess:
oh ok.. seems pretty clear.. its a quadrant steroids lol :p
[Galaxy S II Original Android Development] pepe2909:
+1 same problem...
[Galaxy S II Original Android Development] maxvanni:
just select in emulator the UV option, it will automatic undervolt your kernel, you don't need to touch nothing ;)
[Galaxy S II Original Android Development] alibotan:
pls set cpu scaling add ondemandx ondemand i have void.echo..

great kernel tnks knzo ;)

sorry my english bad :S
[Galaxy S II Original Android Development] imapig:
After copying some files and unplugging the USB (USB debugging enabled), my S2 will hang or SOD, have to remove battery to reboot. Happens every time so far

Seems to happen on Echo. Did not encounter this in Charlie and Delta.
[Galaxy S II Original Android Development] alinawyx:
it's not happening on my sgs2, neither in echo nor delta.. this seems to be happening to only some of you, could it be due to other reasons that those who are facing SOD had some other stuff in common? maybe oc or rom?
[Galaxy S II Original Android Development] goodsmile:
hmm after editing the update-script, i cant flash the kernel it says cant open e:/emmc/.... something

i wanted to remove the wipe moduels and init.d
[Galaxy S II Original Android Development] Entropy512:
Where are your sources (GPL license compliance...)?
[Galaxy S II Original Android Development] AndreiLux:
Right in his first post?.... You're throwing your gpl hatchet a bit too fast.
[Galaxy S II Original Android Development] adyscorpius:
Its right there since day one, iirc... OP, as the last question !!! or just search source...
[Galaxy S II Original Android Development] byobodybag:
Q. Where the **** is the source for this?
A. https://github.com/sophrosyne/samsung-kernel-galaxysii

What's funny is that's how the first post meant it... cheers! :D

---------- Post added at 12:45 PM ---------- Previous post was at 12:05 PM ----------

Btw, anyone using Voltage Control with void.echo? Just wondering what are your stable UV settings.
[Galaxy S II Original Android Development] imapig:
Also notice that after reboot, some apps (those that were moved to SD)will "disappear" and i have to reinstall them.

Could this be related to filesync and ext4 journalism being enabled?
[Galaxy S II Original Android Development] hacksome:
I've stopped the 'Kernel Hunting'. Void is working out superbly for me. Great battery life, Smoothness and Stability. Great job. & Thanks.
[Galaxy S II Original Android Development] JayJ-1974:
Don't reinstall them, try a reboot!

Worked for me. :)

~~~~~~~~~~~~~~~~~~~~~~~~~~

Swyped from a distant star, the other side of the Galaxy on my GT-I9100 using Tapatalk ©
[Galaxy S II Original Android Development] imapig:
Thanks! A reboot does work but while the app that "disappear" came back, some other apps will "disappear" after that reboot, so reinstalling is alot easier than keep on rebooting and hope zero apps "disappear".

I still face the issue of my S2 hang after unplugged from USB. Seems like it will hang after it finishes "preparing SD card". (I have media scanner disabled. Enabled didn't helped either)

I've tried flashing back to Charlie and did not encounter this. Disabling filesync and Ext4 journalism did not help either.
[Galaxy S II Original Android Development] alinawyx:
strange, never happened to my sgs2.. i suppose our phone had the same manufacturer since we both got it from singtel.. i don't really got any issues since charlie, but i do notice better battery life in delta than echo..
[Galaxy S II Original Android Development] pacc:
I think there's no point going for lower frequencies than 500mhz since 100mhz and 200mhz steps use the same/similar mV, I actually use all first 3 steps at 850mV.

I've been testing 500mhz step only, and for my surprise is battery saving and OS is still quite fluid very usable.
[Galaxy S II Original Android Development] Logi_Ca1:
Actually someone here mentioned the same thing and then somebody else said that power consumption is frequency x voltage. So using a lower frequency does help.

Correct me if I'm wrong.
[Galaxy S II Original Android Development] pacc:
I'm not an expert myself, but in my opinion power consumption is not related with frequency x voltage.

My experience since i9000 and even older phones is that each frequency step has an appropriate mV.
[Galaxy S II Original Android Development] Schindler33:
Your are partially right:

Power = capacitance * frequency * voltage to the power of two

This is from wikipedia: http://en.wikipedia.org/wiki/CPU_power_dissipation
[Galaxy S II Original Android Development] nitr8:
Yip using VC to UV, and its stable as hell.. will dig out UV settings asap

@knzo

what version of Linaro toolchain are you using?

what initramfs are you using?
[Galaxy S II Original Android Development] imapig:
Didn't have this issue with Charlie too, only Echo.

Have yet to try reproducing the issue with Delta.

Hopefully Foxtrot will fix my issue.;)
[Galaxy S II Original Android Development] redmaner:
Testing your kernel on CM7 thanks first impression is good :)
[Galaxy S II Original Android Development] Seifer1975:
I am the person who first brought it up, and I am also using 500mhz as my minimum frequency. On top of the above, my gut feel is that tasks get completed faster in 500mhz than 100 or 200mhz, which should lead to lower power consumption.
[Galaxy S II Original Android Development] Entropy512:
I scrolled up and down the entire post 4-5 times - turns out he's got it buried in a code block which ITSELF scrolls up and down. Ooops.

As to the validity of going below 500:

While it is true that power consumption is usually a linear function of frequency and proportional to the square of voltage, the CPU supports idle functions that turn off more than just the core. "deep idle" is a state higher than suspend in which some peripherals are still turned off. These items cause a baseline power draw regardless of the core state.

Also, even the core of a CPU does have a baseline static leakage current that is not a function of clock speed. As you drop clock, this number becomes more and more significant.

However, the voltage at 200 MHz IS lower than at 500. So there's a valid reason for it to exist.

100 MHz, on the other hand, does not seem to provide any benefits unless you can UV significantly because you're getting down to the point where the static leakage current of the CPU dominates, and might even increase consumption by keeping the device out of deepidle. (e.g. 100% load at 100 MHz is higher drain than 50% load at 200 due to the benefits of being in deepidle.)
[Galaxy S II Original Android Development] JF-GINO:
I am also getting this problem where any apps installed to my SDCard disappear.

A reboot brings some back, then others disappear. This never happened on Siyah Kernels for me so I am wondering if its related to how the SD card is mounted and indexed when booting?

Wondering how to fix this, even if its a solution I can implement myself.

I am currently using Void.delta, as it has super fast response, stable for me - OC and amazing battery. Great Kernel BTW.
[Galaxy S II Original Android Development] knzo:
Sorry, haven't had much time and it's not getting any better this week.

Linaro 4.5; the initramfs is a mix, you can always unpack it and study it yourself.

Don't thank me, thank gokhanmoral as the AOSP-based ROM support is his.

But I'm glad you're liking it.
[Galaxy S II Original Android Development] dave_p_b:
Just flashed void.echo and first impressions are wow!

I don't think my phone's ever responded, or ran, this fast. I'm looking forward to trying out this new kernel.

Great work.
[Galaxy S II Original Android Development] RedWave31:
I've been using 100mhz step with VoltageControl.

Thought it was disabled on the latest echo?
[Galaxy S II Original Android Development] :
Great kernel, but one thing is missing: Please add support for the new aosp-Sgs2 Settings

Oh, and keep 100mhz step... If its unstable for somebody, the are free to disable it, right? :D For me it's fine so I'd like to use it, thanks =)
[Galaxy S II Original Android Development] RedWave31:
I'd plus that, please keep the GPU UV too, it NEVER was unstable, i've got a top-notch GS2 :p
[Galaxy S II Original Android Development] MrPhilo:
http://xdaforums.com/showpost.php?p=18315860&postcount=3897

Make a folder init.d and change the permission.

Then put the GPU script inside and customise at will then reboot, it should have applied.
[Galaxy S II Original Android Development] RedWave31:
Cool! I thought that since support was removed from VoltageControl, it couldnt be brought up :p

Thanks!
[Galaxy S II Original Android Development] Try4Ce:
Testing this kernel right now with Galnet MIUI (modded by Sakaschi from android-hilfe.de).

So far this kernel seems to run flawlessly and suprisingly smooth on MIUI. Almost no lagging or hickups, and Benchmarks (without dirty hacks) run better than ever before seen on my device.

I will post screenshots of the various benchmark scores shortly.
[Galaxy S II Original Android Development] Try4Ce:
Okay guys, here are the screenshots of Quadrant, CF-Bench, Antutu and Linpack (note that the one with the lower score is single core).

Those are the best benchmark scores I've achieved so far on my beloved SGS2 (running latest Galnet MIUI), and judging from the UI smoothness, it is as well the best I've seen.

EDIT:

ROM: Galnet MIUI (mod by Sakaschi)

CPU: 1,2 Ghz stock. No OC, no UV

CF-Bench Java Score is normal for the custom ICS Framework of Galnet MIUI, its always that "low". With CM7 or Stock MIUI the scores with CF-Bench are better. Needless to say: the score should be noticeable higher than the stock SGS2 one noted down in the Benchmark Program.
[Galaxy S II Original Android Development] JayJ-1974:
Void echo is running well for me, very smooth, have had one SOD since release which was when my phone locked whilst playing Asphalt 6. Had to pull the battery!

Some impressive scores in AnTuTu, Quadrant and Linpack.

Min CPU 200mhz,

Max CPU 1400mhz,

Lionheart, no other tweaks.

~~~~~~~~~~~~~~~~~~~~~~~~~~

Swyped from a distant star, the other side of the Galaxy on my GT-I9100 using Tapatalk ©
[Galaxy S II Original Android Development] dark79:
Is it just me or does void have problems with Titanium Backup?

Everytime I try to batch backup my user apps, the phone soft reboots after about a minute. This is with stock speeds and voltages. I've tried lulzactive and Lionheart settings as well as locking the CPU speeds to 1000, 800, and 500 in SetCPU. Tried with CheckRom, CM7(116) and MIUI.

I don't get any soft reboots anywhere else. Just Titanium Backup.

The only way I can get a backup to complete is if I install SiyahKernel.
[Galaxy S II Original Android Development] dave_p_b:
Using void.echo and having the same problem as some others. Problems starting some programs until I use Titanium to reinstall them.

Apart from that, kernel is great.

Edit: move all apps to internal storage. Hopefully should fix issues.
[Galaxy S II Original Android Development] Urokinase:
I have no problems with Titanium....running Turbkey Rom.
[Galaxy S II Original Android Development] :
I have a relatively high aos battery usage compared to siyah...
[Galaxy S II Original Android Development] Skin1980:
Charlie version for me is great compared to the others... nobody agree?

Inviato dal mio GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] Remoteconcern:
That's because Siyah kernel is patched up to 2.6.35.14, compared to void which is 2.6.35.7. The .14 stops the OS reporting AOS usage in the same way.

There is no functional difference between the two kernels in actual usage.
[Galaxy S II Original Android Development] troffers:
Awesome

@ knzo

I've been swapping between this kernel & Siyah 2.2 and it's got to be the smoothest kernel I've ever used. Deep sleep was awesome and probably the fewest wakelocks I've had.

However, if you could lower the default screen brightness (as is shown to have a significant battery saving in Siyah / Speedmod kernels) then this would be the one I would stick to.

Keep up the good work. Can't wait for future revisions :)
[Galaxy S II Original Android Development] d8389:
Please DO NOT.

Or, please, do it optional.

It's impossible to use phone as GPS navigator with speedmod kernel when weather is sunny. Last siah a bit better, then speedmod, but worse then void or stock.
[Galaxy S II Original Android Development] malavan:
+1 yes just do it optional
[Galaxy S II Original Android Development] DobermanS:
sadly but on MIUI ICS 11.26 on incoming call screen doesn't turns on...

all default values... from experience the problem in the governor at 100 Hz
[Galaxy S II Original Android Development] troffers:
Fair enough, optional would be good. I just find the default brightness too high (I live England and it's not that sunny here!) so lower brightness, only at the lowest level, would be good. For me at least!

Sent from my GT-I9100
[Galaxy S II Original Android Development] bons:
I have used void.echo for a couple of days, and I am very impressed. Fast and smooth.

One problem: the charging speed in my car is insufficient. Using Sygic for navigation, my battery level actually drops.

With Siyah (2.2p) battery level raises while using navigation.

Is there something I can do to speed up car-charging so that I will be able to use this fine kernel.

I use a HTC car-plug (1.0A), with a usb-connection to the phone.

Thanks in advance.
[Galaxy S II Original Android Development] iNeri:
Try with usb debug unchecked

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Original Android Development] nyunyu:
I'm coming from Siyah and currently just flashed void echo. Is it just me or this kernel does not allow to use custom boot animation? I flashed ICS theme v5.0 and the bootanimation doesn't seems to work, just showing stock.

I know that it worked before when I was on Siyah.
[Galaxy S II Original Android Development] bons:
Thanks, but my usb debug is always unchecked because I use Kies to synchronize with Outlook.
[Galaxy S II Original Android Development] snout:
Brighter the better !

Optional is good - eyes get worse as we get older my friend, 50 up next and my eyes are not what they used to be..:rolleyes:
[Galaxy S II Original Android Development] troffers:
Haha, I'm 35 so my eyes aren't that bad yet!

Sent from my GT-I9100
[Galaxy S II Original Android Development] dark79:
Same issue here, but I'm using min of 200.
[Galaxy S II Original Android Development] d8389:
About low brightness and navigation:

In WinMobile I was set brightness levels 2 steps lower when external power disconnected, but no applications, that can customize brightness levels depending on external power and light condition exist for Android.

Also AutoBrigtnes reaction for light sometimes too slow. For example when exiting from tunnel.
[Galaxy S II Original Android Development] :
Same here on cm
[Galaxy S II Original Android Development] Raptor svs:
+1 on MIUI 1.11.25 (WajkIUI)

---------- Post added at 09:48 AM ---------- Previous post was at 09:42 AM ----------

But I have to say that this kernel runs very smoothly! I like it a lot, also don't need these tons of options other kernels offer. Just the (on average) best settings and done.

Keep up the good work!

Another problem besides the screen not turning on during a call on WajkIUI 1.11.25 is that the soft buttons are always on once you pressed one of them and don't have a timeout of a few seconds which for me at least is annoying. I turned them off now completely in MIUI settings...
[Galaxy S II Original Android Development] Siberian Tiger:
Good work.I've been running delta and no problems here.

I'm going to try later charlie :)

One thing you don't have support for bootanimation is that correct ?
[Galaxy S II Original Android Development] -ph-:
Which governor are u using? When I was using lulzactive I had some problems too, but with Lionheart I don't.
[Galaxy S II Original Android Development] cattleprod:
nope, extra code needed to change proximity sensor from near to far