yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 2 7" Android Development] uchihakurtz:
Happened to me too, I'm on P3110 running stock 4.1.1, every time it tries to write some big files into the card (internal when swapped) it just freezes then reboot. Could it be that my MicroSD isn't strong enough? I'm using Transcends SDHC Class 4. The score isn't that bad compared to my Ace 2's Sanddisk UHS Classs 10 though.

Oh, and I notice some overheating when OC-ed with ROW and INTERACTIVE, any nice gov suggestions? :D

Greate kernel though :good:

EDIT: after swapping back it still rebooted when downloading from Play Store and game data. How do I revert back to stock kernel??
[Galaxy Tab 2 7" Android Development] coringabrazil:
Tried the 0.5.3 kernel without the OC addon and now it doesn't reboot anymore when i try to download apps or game data. I think the problem is with the OC addon, at least on my tablet.

I use Interactive and sio - good combination

EDIT: Not that im criticizing your work KK. You did a wonderful job making a kernel that lets we use the full potential of our tabs.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Go to first page and download *0.4.3-stock*.
[Galaxy Tab 2 7" Android Development] m.mcrespo:
When I used kk boot 0.53 with overclock in gpu my tablet reboot too. I use stock 4.1.2 Russian.

Enviado de meu GT-P3100 usando o Tapatalk 2
[Galaxy Tab 2 7" Android Development] karaern:
yes yes for new version...

NO NO NO to exfat....(so fat so unnecessary) :o

with croatian stock + 0.5.3+oc i dont have any problems of reboot..
[Galaxy Tab 2 7" Android Development] viktorlucky:
Glad to hear 0.5.4 is coming soon :thumbup:

In my humble opinion, exfat is not needed again, maybe user can try paragon ntfs exfat from play store .

But if it included again with optional like before, no problem with it too. :D

galaxy tab p3100-Sungsonic HD-KK kernel
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Depressing, no one gave me an input on boot animations :'( But people start downloading KK-Boot 0.2 that I have not described yet! Maybe this thread need a more bombastic title, like "KK-Boot - Boost your stock ROM 3D performance!" XDA habits? :P
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
First page updated as a celebration of 10 days as a proud Galaxy Tab 2 7.0 owner :cool:
[Galaxy Tab 2 7" Android Development] Einril:
This looks interesting. I'll give it a try. Is there a way to implement OC support ?

As for the boot animation, what about one based on this one ? I find it quite beautiful.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
For those still interested, KK-Boot 0.3 ready for download.

- busybox installer bug fix, all script reviewed

- adb on charge, thanks to codeworkx

- bash and nano taken from cm9, sysrw and sysro from Android Kitchen

- boot sound disabled by default

- new boot animation, Android Scribble
[Galaxy Tab 2 7" Android Development] jasonyu007:
config.gz file ?

Hi !! I tried to compile the kernel source . But where could get the config.gz file ?? One big question this kernel is not compatible with new updated official OTA any more .

Such as P3100ZSBLH4_P3100BRIBLH4_BRI . So I think I have to recompile the kernel again for new updaeted
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
The ION kernel driver not compatible to ION library in 4.0.4 . I've sent an email to Samsung (oss.request@samsung.com) about this problem but no response so far. There is no /proc/config.gz, but there is a kernel configuration suitable for Tab 2 ("espresso") in the kernel source code. Mind to share LH4 boot.img here?
[Galaxy Tab 2 7" Android Development] jasonyu007:
the boot.img is inside the zip file.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
First page updated. JB 4.1.1/4.1.2 overclocked kernel!
[Galaxy Tab 2 7" Android Development] alexecus:
Very good kernel actually... Its good to know that we have a stock kernel developer... Would be epic if overclock would reach 1.5 GHz CPU and 512 MHz GPU (like what is on AOKP Kernel)

Using the kernel with my P3110, everything is blazing fast...
[Galaxy Tab 2 7" Android Development] Adi Shakthi:
Thank us so much u have made me to define new sungsonic™HD ....on ur kernel......

No offence all time milestone in tab2 forum .....

Rest of job I will do

Dear Tabers....

This thread should be more busy.....

I still remember on kernel shock I have already bricked 4 android device....

I request please give proper feedback and credits to this one and only kernel develouper.....

:thumbup::):beer::thumbup::thumbup::beer:

Adi™

Creator Of Sungsonic™HD
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Thanks for your good feedback but I have no plan to build a kernel beyond 1.2GHz CPU clock and 384MHz GPU clock. I will upload a kernel patch as base information how to overclock our device.
[Galaxy Tab 2 7" Android Development] geoogik:
Just flash uh this kernel on sungsonic and everything locks fine.

Soo fast now...I just hope this don't affect the sound and video of this rom.
[Galaxy Tab 2 7" Android Development] tapan15in:
It will not affect

NeoHack
[Galaxy Tab 2 7" Android Development] Monfro:
Thank you very much ketut.kumajaya!!!

This kernel is really great!!!

Fast and stable!!!
[Galaxy Tab 2 7" Android Development] rraaka:
please share your OC or UV / governor settings please. thanks
[Galaxy Tab 2 7" Android Development] leyo1022:
Thanks alot ketut.kumajaya for this kernel, my tab works fast and stable!!!
[Galaxy Tab 2 7" Android Development] nicosoftmedia:
Nice work.....

I am still trying to modified them. But, it's not completed like yours :). Still learn......
[Galaxy Tab 2 7" Android Development] deejayzee:
How do I change GPU overclock? Antutu CPU master says it is not supported by my ROM

Sent from my GT-P3113
[Galaxy Tab 2 7" Android Development] rezashamdani:
Another big thanks for you, will try this asap ;)

Ps. I'm indonesian too
[Galaxy Tab 2 7" Android Development] amack10:
For some reason I cant get this to install. It says failed get prop gt 3100 gt3113
[Galaxy Tab 2 7" Android Development] uchihakurtz:
Hmm.. I did installed the OC

add-on, I'll try flashing the core only next time.

Thanks dude but I reflashed stock firmware via Odin out of panic. Luckily I didn't lose any data :D

EDIT: yup, the oc-addon definitely caused the reboots, after flashing the core file only, everything is fine (so far) even when swapped. Thanks ketut, you rock! :D
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
0.5.5 contain Youtube HD bugfix

kkboot-0.5.4-core-p31xx.zip (~10.4 MB) --> Install this first!

kkboot-0.5.4-addon-oc-p31xx.zip (~5.3 MB) --> Have overclock support, no exFAT filesystem support

kkboot-0.5.4-addon-nooc-exfat-p31xx.zip (~5.7 MB) --> Have exFAT, no overclock support

kkboot-0.5.4-addon-oc-exfat-p31xx.zip (~5.7 MB) --> Have exFAT and overclock support

We can use preload partition /dev/block/mmcblk0p11 as swap partition. This partition contains preload applications, pictures, musics, and video. To prepare preload partition as swap partition, type "mkswap /dev/block/mmcblk0p11" (without quote) over "adb shell" or Terminal Emulator. This command will format /dev/block/mmcblk0p11 as swap filesystem, erase whole /dev/block/mmcblk0p11 contents! To enable /dev/block/mmcblk0p11 as swap, type "setprop persist.customboot.swap=true" (without quote) over "adb shell" or Terminal Emulator.

This kernel now has alternatives TCP congestion beside cubic and reno. For example, to enable TCP westwood, edit /system/etc/init.d/01modules:

insmod /system/lib/modules/tcp_westwood.ko
busybox sysctl -w net.ipv4.tcp_congestion_control=westwood

This kernel has driver and filesystem modules are not enabled by default, edit /system/etc/init.d/01modules to enable NFS filesystem, NTFS filesystem (read-only), and USB GSM & CDMA modem driver for PPP Widget.

This kernel now compiled using Linaro Toolchain HF 2012.12 and the most recent and more advanced Galaxy Tab 2 kernel source.
[Galaxy Tab 2 7" Android Development] m.mcrespo:
install help

today i am using kk boot 0.53 and all ok.for use this new 0.54 what i have to do?i can just install and overrite 0.53??sorry bas english.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
As always, install the *core* first and then *addon*.
[Galaxy Tab 2 7" Android Development] putti71:
AW: [BOOT IMAGE][GT-P31XX] KK-Boot - Custom boot image for stock 4.1.1/4.1.2 ROM

Just installed 0.5.4 kernel, so far so good, but Antutu score is much lower with same settings as before (0.5.2/ OC 1300 MHz and row)

Should I change settings?

Sent from Telegraph
[Galaxy Tab 2 7" Android Development] karaern:
after wiping cashe and dalvick cahe, then installed 0.5.4 core+0.5.4 no extfat add on, the result pretty better than 0.5.3+addon. BUT (there is always one big but :laugh:) skype on 2 way video call still crushes after 2-3 secs....i think thats a big problems, since these devices are supposed to be mobile video bla bla smth....can you chek this pls.
[Galaxy Tab 2 7" Android Development] paraiso-san:
Thank you! Will test as soon as I arrive home. I hope the Youtube bug is a thing of the past now :)
[Galaxy Tab 2 7" Android Development] karaern:
here youtube works perfectly..
[Galaxy Tab 2 7" Android Development] paraiso-san:
Sorry to report, the streaming video (Youtube, Skype, etc etc) is still present. It just crashes and reboots the tablet. I got back to your blackhawk kernel, running at 1.35GHz CPU/512MHz GPU without those issues at all. The advantage of this kernel would be the Samsung MTP support, but that's not a big deal since I don't use Kies anyway. Oh, that and slightly higher benchmark scores.

Ketut, what could be the difference between this KK kernel and your other kernel derived from the CM 10.1 kernel that causes this streaming video crashing?
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
I've compared the source code that I use. No there are things that I think could make YouTube crash. I'm so confused. But try again attached exprimental build.
[Galaxy Tab 2 7" Android Development] paraiso-san:
Will do right now, be back reporting in a few minutes :)

---------- Post added at 04:42 AM ---------- Previous post was at 04:22 AM ----------

It crashed and rebooted 2 seconds after the Youtube video started :( Even more strange, since that reboot the wifi didn't work anymore, even rebooting the tablet several times. That's odd. Restoring the nandroid backup at the moment.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Strange... please try to power OFF, wait a minute and then power ON to fix WiFi power problem. Attached the update version of my exprimental build. It is now in sync with the source code that I use for CM.
[Galaxy Tab 2 7" Android Development] paraiso-san:
Here I go for another try! Be back in a few minutes.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
You are my best testers :D If the problem persists, try attached exprimental build. WiFi driver in sync with P3110 source code.
[Galaxy Tab 2 7" Android Development] putti71:
AW: [BOOT IMAGE][GT-P31XX] KK-Boot - Custom boot image for stock 4.1.1/4.1.2 ROM

Is this youtube streaming problem persistent for all users of this kernel? Because I haven't got this problem, at least with YouTube. I haven't tested Skype yet. I am on stock 4.1.1 and latest kernel 054, before experimental built.

Sent from Telegraph
[Galaxy Tab 2 7" Android Development] paraiso-san:
Victory!! With the experimental, it crashed and rebooted. With the experimental + WiFi file, it works! Watched YouTube without crash or reboot! Thank you!

I have just a couple of questions just for the sake of curiosity: what did you change? What are the advantages of this compared to your Blackhawk kernel?
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
I trace back my offline blackhawk source and compare it to my online source on github and found some differences. But I did not realize that the WiFi driver causing the problem until I read your signature. You access Youtube via WiFi only.

There is no advantage at all unless the source code is now on github and Samsung MTP driver. There's nothing I can hide :) And now I know the WiFi driver can cause Youtube crash.
[Galaxy Tab 2 7" Android Development] paraiso-san:
Samsung MTP mode is working. With the Paragon NTFS & HFS app, NTFS and exFAT are working, as you can see in the screenshot. Android tuner can be used as a GUI for both CPU and GPU overclocking as show. It's perfect for a TouchWiz ROM! Outstanding job!

Still divided between this and CM though. It's nowhere near as smooth and fast (either in benchmarks or real usage) as CM 10.1 with your kernel, but with a stock ROM I can enjoy things like the floating apps, the polished interface of Polaris Office, the music and the video player (even though the Kingsoft Office, PowerAMP and MX Player that I use in CM are actually better and more powerful, just look worse), the great S-Planner, the Samsung gallery that has been greatly improved from 4.1.1 to 4.1.2 and now is much better than the stock Android gallery, the better camera interface and the great Samsung photo and video editora, that blow away the stock Android editors present in CM. NTFS support programs don't work yet on Android 4.2, so it's one more point to the stock ROM. Now I think I will go CM only when the stock ROM is outdated, because you turned it from sluggish and laggy to very usable. You are the Galaxy Tab2 king, sir ketut!
[Galaxy Tab 2 7" Android Development] paraiso-san:
Interesting, so it was never related with the GPU drivers at all, and some people reported no issues because they were using the P3100 and streaming by 3G, and the others that had the problem like me were probably P3110 users?
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
+1. Thank you.

Yes. No Youtube HD on 3G but HQ :)
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
All my changes can be viewed online https://github.com/kumajaya/android_kernel_samsung_espresso10/commits/cm-10.1-blackhawk
[Galaxy Tab 2 7" Android Development] deejayzee:
Maybe I am wrong but I think that I have pretty fast battery drain with this kernel in sleep mode. For some reason I can't take screenshot, but BetterBatteryStats shows that device was awake for 4 hours 26 minutes, but screen was on for 1 hour and 18 minutes. Kernel Wakelock sections shows 'musb_autosuspend_wake_lock' was run for 1 hour 40 mins, wake count - 1218. The device was on since unplugged from charger for 25 hours. Tell me what else information I can provide to make this more clear?
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Let's wait for confirmation from other users and what can I do then. Any information about your device type (certainly not P3100), ROM version, kkboot version, WiFi activity? Is there a background application that prevents your device from sleep? And you can always back to stock kernel (attached @ post #1) to compare battery consumption.
[Galaxy Tab 2 7" Android Development] deejayzee:
My device is P3113, stock 4.1.1. wi-fi was off, the battery consumption is a little less than 1% per hour but I need more testing to say for sure. I only installed KK-boot since version 0.5.3, and upgraded to the 0.5.4, both versions (OC with exFat support) have the same behaviour. I always have the same set of apps installed on my tab and when I had CM10.1 installed the battery consumption during sleep was much lower. Anyway I'll do more testing to be sure that it is not only my imagination.
[Galaxy Tab 2 7" Android Development] paraiso-san:
I will also look into that. When using Ketut's blackhawk kernel for TouchWiz roms, I had a drain of about 1% per hour with WiFi on (and receiving quite a bit of notifications from Gmail, Facebook, Tapatalk, etc.). I will see if it behaves the same with the KK-boot kernel and post my results.
[Galaxy Tab 2 7" Android Development] karaern:
the latest experimental wifi add on just corrected the skype problem ! :good:

although i didnt experience any problems with youtube (maybe cuz i dont use it so often, yet tried it) i can sense a bit smoother stop start response with the new one...and same nena score..36fps

so far seems good..
[Galaxy Tab 2 7" Android Development] :
Battery Usage

Hi,

I have a P3100 and use Elite Rom - The Dark Knight Series with your kernel, I must say I am very impressed with battery usage :good:, it uses far less then 1 % per hour in my case see below screenshot attached.

Cheers
[Galaxy Tab 2 7" Android Development] coringabrazil:
0.5.4 Kernel

Well... this kernel with the wifi experimental addon is perfect. Great performance and no more reboots when downloading apps and game data. Youtube isn't freezing anymore.

And it feels a little faster then 0.5.3.

btw, im on 4.1.1 GT P3113.

Great jog KK
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Very glad to read all above feedback :good:
[Galaxy Tab 2 7" Android Development] webdroidmt:
OTA 4.1.1 P3113 currently on 0.5.3, looking to update to 0.5.4. I have not experienced any Youtube HD, or any other wifi issues, wondering if I should use the experimental wifi file?

If so, what order should I flash, core, oc with exfat and then the experimental? Ketut, thanks for your continued kernel support for stock, been using it since 0.5.2 and it's been great!

Maybe you should be called Kernel King Ke Tut. :D

Mike T
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Historical background: When CM 10.1 switched to 3.0.31 kernel, I was motivated to try CM because hardware accelerated media will definitely work because the adoption of omapzoom.org's GPU driver and I think will be able to contribute because I was the first person build unofficial 3.0.31 kernel from source code. It is evident that I am contributing to solve rotation and sleep too deep bug. I knew CM/codeworkx use Samsung JB update2 kernel source code and I knew this is not the most recent source code. From file timestamp and WiFi driver version, JB update2 older than JB for P3110 (source code which I use), November 2012 vs January 2013. Using diff tool I start compared CM 3.0.31 kernel with JB updated2 and applied the resulted patch to JB P3110, add my own patch, blackhawk kernel for CM born. Because I miss Samsung JB interface and especially Samsung keyboard, I went back to stock 4.1.2 ROM and started working on github. Forking CyanogenMod/android_kernel_samsung_espresso10, patched it but this time I used SEA JB P5100 because I think it is as new as JB P3110. Released it as 0.5.4 and Youtube HD bug is back! The conclusion: JB P3110 kernel source still the most recent source code, damn Samsung!
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
If you need exFAT support, please wait 0.5.5. The exprimental addon does not have exFAT support. Thanks for your support :good:
[Galaxy Tab 2 7" Android Development] paraiso-san:
After a 6 hour run, I can confirm that this kernel doesn't have any excessive battery drain issues. It goes down about 1% / hour with WiFi off, or around 2-3% with it on.

By the way, Ketut, would you mind a list of suggestions / wishlist for your future releases? :)
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Thanks for your confirmation and I am always open to any suggestions. I will refuse to bring anything at risk of data loss (i.e. native NTFS write), partially work, something that is known broken or I do not have a good reason to include it :D
[Galaxy Tab 2 7" Android Development] m.mcrespo:
I am using 0.53,I have one problem in my tablet p3100 i can't send files with Bluetooth. But I not try do it in stock kernel so I can't say if it is one problem with kk boot or in all tab2.anyone can confirm if. It is one problem in p3100?

Enviado de meu GT-P3100 usando o Tapatalk 2
[Galaxy Tab 2 7" Android Development] m.mcrespo:
Thanks,I freeze some apks and services here(bloatware ).maybe one that I have freeze make Bluetooth not working.

Enviado de meu GT-P3100 usando o Tapatalk 2
[Galaxy Tab 2 7" Android Development] coringabrazil:
Im not using exFat addon... the order i used was: 0.5.4 core - 0.5.4 oc addon - 0.5.4 wifi experimental...

tried to use 0.5.4 core - 0.5.4 wifi experimental - 0.5.4 oc addon - with this settings still had problems with youtube, download apps from google play and download game data. Im on 4.1.1 p3113

p.s: dont know if the 0.5.4 wifi experimental addon will work with exFat addon...
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
This is bug fix for 0.5.4:

kkboot-0.5.5-core-p31xx.zip (~10.4 MB)

kkboot-0.5.5-addon-oc-p31xx.zip (~5.3 MB)

kkboot-0.5.5-addon-nooc-exfat-p31xx.zip (~5.7 MB)

kkboot-0.5.5-addon-oc-exfat-p31xx.zip (~5.7 MB)

kkboot-0.5.5-addon-experimental-p31xx.zip (~5.3 MB) --> this is addon-oc (without exFAT support) but CPU voltage is lowered slightly

You also have to thank to paraiso-san since this solution is achieved because his cooperation and "pressure" as well :good:

If you out of thanks for today, download this kernel tomorrow.
[Galaxy Tab 2 7" Android Development] paraiso-san:
Ready to test! Thank you!

---------- Post added at 08:46 AM ---------- Previous post was at 08:23 AM ----------

Is the correct order core --> OC --> experimental low voltage?
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Can directly from core to any addon.
[Galaxy Tab 2 7" Android Development] suffez:
is dat kkboot-0.5.5-addon-experimental-p31xx.zip include experimental+wifi addon or just addon for lowered voltage ?
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
All 0.5.5 already has updated Broadcom DHD WiFi driver version 1.28.19.4 (RC2_1130) for Youtube HD bugfix. This is actually a secret between me and paraiso-san, please do not tell anyone else ;) It was painful when someone uses this information without giving me a proper credit :(
[Galaxy Tab 2 7" Android Development] suffez:
just want to know the advantages lowered voltage as well as save battery and how to return to normal default? found p3100 become very slow during gaming.. tq for this wonderful tweak..
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
You can switch between addon without problem. 0.5.5-experimental purpose is to reduce chipset heat dissipation but needs to be test the effect to the stability of the system.
[Galaxy Tab 2 7" Android Development] deejayzee:
I don't know exactly but I think that it is a little bit above normal. I flashed stock kernel and the battery goes down about 0.5% per hour in sleep mode. Then I flashed OC kernel again and installed "DS Battery Saver" from market, which handles some processes during deep sleep and then I got the same 0.5% per hour even with wi-fi ON!!!
[Galaxy Tab 2 7" Android Development] karaern:
what if someone is so happy with 0.5.4 oc no exfat version...;)

perhaps should give himself to unstoppable desire to try new version or just close eyes...:p
[Galaxy Tab 2 7" Android Development] paraiso-san:
This new 5.5 with underclock is working flawlessly, no crashes whatsoever. Just for curiosity, how much did you lower the CPU voltage, Ketut? Is it, let's say, now running at 1.2Ghz at the same voltage it used to run at 1.0Ghz or something like that? Will you be releasing a 0.3 kernel for CM with undervoltage too?

I will take a look at the battery drain and heat output in the next hours, I will leave it at 1200/384 to make the comparison fair with the non-undervolted kernel.
[Galaxy Tab 2 7" Android Development] paraiso-san:
Quick progress update: it crashed and rebooted 3 times while installing GLBenchmark from Google Play. Don't know if it's undervolt-related though, I didn't have issues in other tasks untill now.
[Galaxy Tab 2 7" Android Development] viktorlucky:
need help here,

my sister just buy p3110.

i want to swap the eksternal memori (sandisk 16gb) to the internal (8gb internal memory)

i just flash the kk boot 0.5.3 , type the command ini terminal emulator, and nothing happen here?

what step i missing? i'am not familiar with linux command prompt,

fyi: i'm using sungsonic hd rom. 4.1.2

sorry for my noob question

thanks before.
[Galaxy Tab 2 7" Android Development] ketut.kumajaya:
Reboot. KK-Boot will silently swap your storage on boot.