yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab  Android Development] triplex76:
I just use (koxudoki kernel but I think is pretty much the same) 100/100 (yes,100mhz...the lowest!) performance for screen off.setting performance you just fix the clock setting and you get no issue...give it a try...it really works and gives you some good battery life.
[Galaxy Tab  Android Development] gwbard:
I use 100-400 / interactive & have no issues.
[Galaxy Tab  Android Development] triplex76:
100mhz are just enough when the screen is off.

the battery just goes down from 99 to 95 after 12 hours ... amazing extralife.;)
[Galaxy Tab  Android Development] fastcx:
100~400 on demand here, without issue waking up, yet
[Galaxy Tab  Android Development] TheGrammarFreak:
I have constant issues with waking up, I've given up with profiles for now
[Galaxy Tab  Android Development] fastcx:
Previously i had such issue, just try to eliminate other causes b4 give up :) I would never run such profile if i'm using live wallpaper
[Galaxy Tab  Android Development] Bigmille:
Hi,

Does anybody have problem of Voltage Control not load customised adjustment after reboot? If so is there a work around?

I'm running V11 (V12 and 13 will not boot), and the Voltage Control thread don't have any answers.
[Galaxy Tab  Android Development] fastcx:
Running v13, voltage control do load saved settings after reboot, rebooted my tab a few times just to try that out, and reboot into recovery also works
[Galaxy Tab  Android Development] TheGrammarFreak:
Get 7zip and extract the tar, you should be left with a file named zImage. Flash that as the kernel using Heimdall
[Galaxy Tab  Android Development] richardtrip:
Can there be a problem with odin? Flashed about 20 kernels with heimdall today and my sd or data was never wiped.
[Galaxy Tab  Android Development] TheGrammarFreak:
Odin is a pile of rubbishness. Heimdall is better.
[Galaxy Tab  Android Development] b0ricuaguerrero:
it could be that. im on my laptop, and i used an old version of odin. and lost my data
[Galaxy Tab  Android Development] deezid:
Nice, but...

some bugs I noticed:

T-Mobile Splashscreen (distortion before)

Data on sdcard will be lost

user apps and market are missing

auto brightness doesn't work anymore

some settings are reverted to rom standard

Used Heimdall to flash zimage only... ;)
[Galaxy Tab  Android Development] lexi1986:
Auto brightness is working here with his kernel
[Galaxy Tab  Android Development] gyroing:
no wipe data with latest version of odin with deselecting repartion. my rom is ended with jj1 arabic and oc kernel works fine without lossing data oninternal or sd. before that i root with oneclickroot.
[Galaxy Tab  Android Development] acolwill:
For those of you having issues with auto brightness, internal SD's being wiped and other general stupidness....

Richard and I have tested this using ROTO JMEv4.

If you've got general issues, please note your current ROM and version, including your TAB version i.e. Euro P1000

If you can, include a logcat

If you can't, try taking a picture of the issue (if it's visible)

Describe what you were doing at the time, as much information as possible...

--

Users flashing this kernel via Odin _MUST_ use Odin3 v1.7 as a MINIMUM.

Flash the TAR under PDA.

By default, partition is NOT ticked.

--

Users flashing this kernel via Heimdall, you must extract the TAR first.

Heimdall must be version 1.1.0 or greater

You MUST have the libusb drivers WORKING in download mode before you can flash using Heimdall.

Use the command line:

heimdall flash --kernel zImage

where zImage is the name of the kernel, full path names are allowed.

--

Always backup your tab before flashing ANYTHING. If you don't, it's not our fault if you lose anything!
[Galaxy Tab  Android Development] cmanatam:
Flashed and booted fine but I have constant freezing especially in browser. Have to do a manual reboot every time. Using JM6 with no locked bootloaders.
[Galaxy Tab  Android Development] terminal 7:
new

hi..

just about to try this kernel ,, but....

im new to moding my tab, im quite able to flash htc devices but this is my first samsung and the ODIN thing is all new to me..

so, i have odin ready and i have the kernel ready, my tab is uk gsm and rooted, it has old (original) firmware XWJJ3 so i assume im ready to go ??

may be someone with more samsung experience can tell me if i have missed something before i go for it and make a silly mistake!!

Pre-Thanks :)

.
[Galaxy Tab  Android Development] acolwill:
Backup your current kernel before flashing because as far as I'm aware, the kernel was designed to run on firmware JME...

If you encounter issues, you can always flash it back :)
[Galaxy Tab  Android Development] terminal 7:
im too new to tab to flash it today !!!!

HMmmm Looks like i need to learn how to use ODIN properly first.. i didnt know you could use it to do a backup first !!

time to go learn some Samsung flash and grab methods :)

.
[Galaxy Tab  Android Development] acolwill:
I'd seriously not use Odin to backup your tab...

If you're rooted, use RotoBackup.
[Galaxy Tab  Android Development] terminal 7:
roto-backup

thanks..

you can probably tell im quite a noob to the samsung tabs methods of flash and backup etc..

i have been in my HTC comfort zone for years now, its kinda nice being the one asking questions for a change :)
[Galaxy Tab  Android Development] acolwill:
Indeed, the HTC phones all have a general safeness around them when it comes to backing up entire roms and the like...

Samsung is a whole different ball game :|

Proprietary filesystems, unhelpfull development woes (signed bootloaders), all with no easy way to backup your phone!
[Galaxy Tab  Android Development] bpt888:
Hi guys,

For those people having their internal SD wiped, that's probably because you are flashing this TAR file with Odin using the PDA mode. PDA mode, as I understand it, wipes the internal SD for flashing system apps and stuff. Using the PHONE mode works without wiping your internal SD (I tried it, it works) with Odin 1.7.

I have a Bell Galaxy Tab (Canadian), similar to ATT GT-P1000 on Roto-JMEv4.

My problem is after flashing via PHONE option on Odin, is I get a NO SERVICE message and when I checked the modem firmware version, via *#1234# code, I get Phone: unknown. But the tab seems significantly faster, on boot up and opening apps.

So I tried flashing my normal modem file Bell_I9000.bin file back so that I can get my phone service back. This went successful and got my phone service back again but I don't know if the OC mod is still there.

How do I know if the OC mod is applied? SetCPU is only seeing 1Ghz. Also just did a Quandrant test and ended with a score of 1030 which is the same as what I had before the OC mod. Did flashing my modem bin file replaced the kernel OC mod? Any ideas?

Cheers.
[Galaxy Tab  Android Development] Body:
Upgraded by Odin tab phone and everything went well, my only sign of the line is completely unsigned. The information also appears as 1000MHz.

How do I get the network signal again.

I use the rom Roto KM2.

Thanks
[Galaxy Tab  Android Development] Body:
Now I'm really worried, I did fresh install of Roto KM2 and also cleaned all the data and I'm still no network. In the information system without all this information:

Phone number: unknown

Mobile Network: unknown

IMEI: unknown

everything is nothing.

What can I do?
[Galaxy Tab  Android Development] pakalrtb:
It looks like you gotta do a repartition. Are you sure you did flash all the files in your fresh install?
[Galaxy Tab  Android Development] Body:
yes, there is only one file. tar ....

just installed a clean version and the JMA network signal back, now I will reinstall the version Roto KM2.

Thanks for the help.
[Galaxy Tab  Android Development] Bigmille:
I've been trying to flash V13 using recovery and Hemidall, but always get stuck on 1st boot logo.

Apart from the voltage control not remember the settings, and CPU temp not show up, the Tab is flying through all the apps compare to stock kernel.

Thank you very much for your hard work making this possible.

P.S. Using root explorer, I can see the changes are saved in "/data/data/com.darekxan.voltagecontrol/files/S_volt_scheduler" file even after reboot.

However, in the voltage control app it only displays default settings instead the custom settings stored in the file.

Does anyone know another app I can use to test the CPU voltage?
[Galaxy Tab  Android Development] lexi1986:
Using MCR R1 with your V13 kernel and everything is working great even the temp :) thnx for your hard work.
[Galaxy Tab  Android Development] roan67:
Same !!!! greats jobs mister Richardtrip and whalla for this news ;-)

Galaxy Tab Euro/Ho Ouiiiii !
[Galaxy Tab  Android Development] Jouixs:
Works Great

Thx.

Regard Jouixs
[Galaxy Tab  Android Development] vinclar:
Hey Guys wich are the lowest stable UV possible?

Now I got this runnig JMI Overcome 1.1.3 with roto JMI v2 was imposible to start the tab with OC to 1.4Ghz bfq

Freq<------>UV <------->Voltage

1400<---->-50 <------->1400mV

1200<---->-50 <------->1250mV

1000<---->-150 <------>1100mV

800<----->-125 <------>1075mV

400<----->-75 <------>975mV

200<----->-100 <------->850mV

100<----->-100<-------->850mV
[Galaxy Tab  Android Development] jrjunior:
Thanks a lot for your help, but it still doesn't work.

Regardless which tool I use to check the battery temp, it's always above 70C with this kernel, the tab itself refuses to charge because of the "high temperature". Even using the sensors.default.so from the 1st post doesn't help.

Flashing back to ModaCo's kernel (which is just the zImage file) brings back a constant 30C temperature - is also wrong but the tab charges the battery :-)

It's just strange that I am apparently the only one ...

Would any logfile help to investigate further?
[Galaxy Tab  Android Development] shmigao:
Does not work / wake up issues when listening to music
[Galaxy Tab  Android Development] shmigao:
I use this too and no probs waking either
[Galaxy Tab  Android Development] bendjlee:
Modaco's kernel has a dodgy temperature sensor... in other words the temperature sensor does not work... yes it will stay a constant 30degrees / 86 farenheit. which is a "fix" to your device running too hot situation preventing you from charging...

I could offer you some goods news though, the v12 version of this Kernel has the exactly same symptoms! i.e. the temperature sensor is also locked at 30degrees/86 farenheit. flashing the v12 kernel in your situation is in my Opinion the optimal solution as you can charge your phone also make use of Voodoo enhancements.

just becareful of overclocking your device too high, cos those temperature readings that you get are worrying to say the least.

Good luck
[Galaxy Tab  Android Development] bendjlee:
If you read though kouxdai's overclock kernel thread you can find the resolution to this issue, for his version of the kernel you need to install busybox into system/lib/bin (you can either copy your busy box across using root explorer OR download from the installer app from the market and specify the directory to install it to)

BUT, for this kernel i not sure the correct location for BusyBox, maybe someone else can point you in the right direction...

Good Luck
[Galaxy Tab  Android Development] shmigao:
i get correct temp readings with v13 though....
[Galaxy Tab  Android Development] bendjlee:
Lol, you've taken my reply out of context....

It was in-response to the other poster whose tab would register 70degrees thus preventing him to charge his device...

his solution was to go back to the Modaco kernel which has a unresponsive temperature sensor, v12 is also unresponsive temperature sensor but provides the added benefits of overclocking and voodoo mods.....

So in summary,

If your tab overheats use v12 kernel where temps stay at 30degreees (it lies to you about the real temps, thus allowing you to charge your device)

if your tab doesn't overheat then use v13
[Galaxy Tab  Android Development] Palary:
Hi, where could I download V12? I've the overheat issue too.
[Galaxy Tab  Android Development] bendjlee:
Link to all richard's kernels

http://xda.richardtrip.org/tab/

Good luck
[Galaxy Tab  Android Development] KChauJen:
Actually, with the ModaCo's Kernel & OverCome v1.3, the battery temperature is dead, upto I flash richardrip's kernel.

In your case, it's really strange, because when I flashed the Samsung original firmware, then I continued to flash Chainfire unblock the bootloader, from there, before flash the OverCome v1.3, I wiped all data and make the configuration of the TAB like the new one and began to install the main apps of daily use.

After above a day of using this tab, I flashed the Modaco's kernel (EXT4) and continuing to install the other apps, up to on yesterday (15.02) to flash this kernel.

My Tab now is stable. The Voltage App has configured from 1400 and scale down approximately to 850mV on 100 Mhz, and the temperature is varied from 32~36.

FYI.
[Galaxy Tab  Android Development] bendjlee:
Yes, below are a list of the popular kernels along with an outline of what works and what doesn't (from memory)

Defective Temperature sensor

Modaco

> CWM recovery

> Camera

Koudxdai v1

> Overclocked 1.2 / 1.4

> No CWM

> No Camera

Koudxdai v1.5

> Overclocked 1.2 / 1.4

> No CWM

> Camera

RichardTrip v12

> Overclocked 1.2 / 1.4

> CWM

> Camera

> Voodoo mod

Working Temperature sensor

Koudxdai v2

> Overclocked 1.2 / 1.4

> CWM

> No Camera

Koudxdai v2.5

> Overclocked 1.2 / 1.4 / 1.5

> CWM

> Camera

RichardTrip v13

> Overclocked 1.2 / 1.4

> CWM

> Camera

> Voodoo mod
[Galaxy Tab  Android Development] vandunga3:
HI there. I still couldnt charge it. It always show up the notification " Charging Pause because of the battery temperature is too high or too low " even I let it cool down for 30 min. Could u please let me know why and how can i flash it back to original kernel? Thanks
[Galaxy Tab  Android Development] knightnz:
Remember, another way to reduce temperature, is to reduce the voltage to the CPU. If you can drop the voltage by 100mV or more then it'll make a significant difference to the temperature the CPU generates.

Also - Koudxkai has a screenshot of a 3000 quadrant score. WTF!? What witchcraft is this?
[Galaxy Tab  Android Development] jkurl:
I set mine at -75 for 1400 and -50 for 1200. All the others I leave at 0.
[Galaxy Tab  Android Development] Basil 123:
Good to know I made the right choice.

Not too happy to mess with the voltage - I'd assume that richard put in fairly safe setttings that would suit most CPU's.

Isnt the temp we all speak about the battery temp and not the CPU temp itself?
[Galaxy Tab  Android Development] knightnz:
He's using the default Samsung voltage scaling.
[Galaxy Tab  Android Development] jrjunior:
Thanks, but wouldn't I feel if the battery is 70C?

I still think that the temperature of my tab is OK but not read out correctly.

I'll try V12 then but would still offer to take logs if someone is interested :-) since more people are affected
[Galaxy Tab  Android Development] vandunga3:
Hi there could anyone show me how to flash back to original kernel? I still couldnt charge my tab.
[Galaxy Tab  Android Development] bendjlee:
Look up the thread dedicated to the use of heimdall… there is too much to explain for a single reply. But essentially you will get a copy of the kernel zimage. Put your tab in download mode. Connect the tab to your PC. Flash the kernel using the aforementioned Program.

Good luck
[Galaxy Tab  Android Development] spandsbab:
Kernel working fine in my Tab (euro) with Overcome ROM...:D
[Galaxy Tab  Android Development] spirit32:
just flashed this kernel over MCR R1. works well on my tab. battery temp is 21c. no issues yet so far!
[Galaxy Tab  Android Development] vandunga3:
Hi there. Thanks for that but could u please give me a link ? I actually dont know how to do it and where to download the files
[Galaxy Tab  Android Development] bendjlee:
Had a quick look… didn't find what I was after…

Ok the thread you are after is the modaco kernel thread.

Here the author states the the simplest way to flash is kernel is via heimidal and I am pretty sure there is a link there.

See if that helps
[Galaxy Tab  Android Development] Justin^Tan:
21c???? for real????
[Galaxy Tab  Android Development] TheGrammarFreak:
Mine idles at 20, maxes out at 35
[Galaxy Tab  Android Development] KChauJen:
I really don't know how to fix it, but read my post [595], this is the short recent history of my Tab.

Good luck.

My Tab's temperature is about 31C when it is totally idle, and 41C when it's on fast charge.

FYI
[Galaxy Tab  Android Development] dave18:
UV settings.

I'm intrigued. Care to share you UV table. Thanks.
[Galaxy Tab  Android Development] kay_kiat88:
for my singapore tab.. v13 is working perfect. with temperature sensors.

what rom are u running btw? i had problems with temp sensor for modaco kernel as well.. flashed richard's v10 then v12 then v13. v11 killed my tab and i had to do a full wipe. if you're running modaco r1 you can try installing the wipe version. then flash v13. before that remember your titanium backup.. (and mp3 and photos if you have) just a suggestion.
[Galaxy Tab  Android Development] kay_kiat88:
lol that's low. mine fluctuates between 30-37 even though my UV is

*-200mV for 1400,1200,1000,800

*-75mV for 400 and 0 for the rest.

Perhaps it's the weather. Singapore is hot. sucks.
[Galaxy Tab  Android Development] daniel.weck:
Guys, how do you monitor the battery temperature ? (SetCPU or SensorsTest)

On my Tab with the standard JMI ROM, only SetCPU sees the temperature.
[Galaxy Tab  Android Development] shmigao:
Some one further up suggested a widget in this thread. I forgot the name

Maybe can be searched with 'widget'
[Galaxy Tab  Android Development] kay_kiat88:
An alternative way is to enter *#0228# in dialer. It also allows you to monitor the temp.

Or you can use setcpu widget. I use that personally.

Widgetsoid a free app to create Widgets also does that and many other functions.
[Galaxy Tab  Android Development] mobile88:
may I know how do I do this ? To see this voltage control figures ?
[Galaxy Tab  Android Development] shmigao:
Download and install xan's app as described in OP
[Galaxy Tab  Android Development] TheGrammarFreak:
In the UK during winter...
[Galaxy Tab  Android Development] vinclar:
Wich testing did you do for stability and max temperature determination? Which UV setting do you have? Ambient temperature?

Actually I'm on this UV settings on 1.4Ghz OC:

1350mV -100

1200mV -100

1100mV -150

1050mV -150

950mV -100

850mV -100

850mV -100

Room Temp: 21º C

Idle: 21ºC

Load: 31ºC after Launch 3 quadrant(~2400 points) bench and immediately after a full GLBenchmark 2.0.3 Temp 32.7ºC

Battery status 33.8ºC

Rom: JMI Overcome 1.1.3 +EXT4+Kernel V13+Wifi ON+Autobrighnesst

Using Widget Elixir for Temps
[Galaxy Tab  Android Development] natious:
anyone else experiencing power off's after the display is turned off?
[Galaxy Tab  Android Development] Bigmille:
Hi,

Can you please tell me where I can find the EXT4+Kernel please? I have the EURO ROM and want to make V13 work on my Tab.

Thanks
[Galaxy Tab  Android Development] lambstone:
What he meant was. EXT4 (partitioned) PLUS Kernel v13
[Galaxy Tab  Android Development] vandunga3:
Could anyone please show me how to fix my tab? I was running modaco r1 then i flashed to overcome 1.1.3 and then i flashed this kernel. When i finished flashing this kernel, i restarted my tab and he battery went down to 3% ( it was 23% before ) after awhile, it dead and i couldnt charge it because it always shows a notification " charging pause because of the battery temperature is too high or too low " could anyone show me how to fix this or how to flash back to original kernel please?
[Galaxy Tab  Android Development] Basil 123:
Thanks for the info - I suppose that for the 1.2 and 1.4 Ghz he set it safely though.

Makes me feel safer that I'm not gonna end up with a hot brick :D
[Galaxy Tab  Android Development] daniel.weck:
The Elixir widget is great ! :)

Do any of you guys see the temperature provided by the AK8973 sensor, or do you only read the battery temperature ?

Thanks !
[Galaxy Tab  Android Development] daniel.weck:
Hi ! I've just tried your kernel on my RFS system, it fails => I suggest that you implement support for *both* RFS and EXT4 partitions in your init.rc and recovery.rc (it's only a small change in the initramfs). It doesn't matter if the fstab is configured for either RFS or EXT4, as it is just a convenience. Eventually I'd like to try your kernel on my Tab, to test whether it exhibits the same problems I have with my home-built kernel (similar source code to yours). Regards, Dan

EDIT: yeah...I think it corrupted my internal SD card too :)

#parted /dev/block/mmcblk0 print ==> mmcblk0p2 is EXT4 (when it should be RFS).

Oh well...one more re-partition + re-install to go (Titanium Backup was a good investment ;) )
[Galaxy Tab  Android Development] daniel.weck:
My home-built kernel is very similar to yours, and I've noticed that iptables are broken: DroidWall fails, and sometimes force-closes due to problems in it droidwall.sh (the bundled iptables_p1 executable generates a segmentation fault). This also seems related to a problem with modprobe and modinfo (lsmod works, but not the other utilities). Let me know if you have similar problems. Cheers, Dan
[Galaxy Tab  Android Development] antiochasylum:
So the obvious question. When can we see 1.5 or 1.6?
[Galaxy Tab  Android Development] TheGrammarFreak:
I leave it with the screen off for a while to see the low temperature, then put the Tab through it's paces with gaming for a while to max it out.

UV from max freq. down:

-200

-200

-200

-200

-75

-50

-100

MoDaCo Beta 7.
[Galaxy Tab  Android Development] Justin^Tan:
No wonder about that geez, you need to be clear about your situation >.<

shocked me to death when you can get that temp in idle on normal condition (no air conditioner applied also)

phew

just when i thought i can get my temp lowered
[Galaxy Tab  Android Development] Justin^Tan:
i did

somehow its kinda locked, and i cant do anything beside forcing turn off and turn on

played radio with screen off, the radio is still on, but pressing any button wont do anything

setcpu 100-400 on demand when screen off
[Galaxy Tab  Android Development] shmigao:
me too. reason for me to depart from setCPU & voltage change
[Galaxy Tab  Android Development] shmigao:
can you confirm though, that you have no skipping / lags in music or video play (i assume you also use setCPU to govern CPU clock?)

once again (same some while ago with the Nexus One), my trials with setCPU did result in great speed and gaming experience but infernal music & video skipping & lags that just were unbearable (every 2 min. music skipped, equal to video).

also then I decided not to use setCPU for Nexus (luckily CM7 is pimped out enough with clock 1.113) and again i departed from it with the Galaxy Tab.

wondering why others seem to always achieve better results, even though i mostly replicate settings that other users recommend here.
[Galaxy Tab  Android Development] Justin^Tan:
hmm, with music, somehow i prefer performance than on demand

when i set mine on demand, somehow, no lock is kinda like disabled for a second and enabled again

so on the screen its like the screen getting locked and unlocked automatically

never got a skipped audio though, but i get a lag in video once

the picture is lagging but the music keeps going
[Galaxy Tab  Android Development] fastcx:
The UV setting really lowers my power consumption a lot it seems, cause my battery life is increased
[Galaxy Tab  Android Development] natious:
I have lowerd mine down the same as his, everything works fine, videos, games, my idel is 31* after 20mins of nfs its like 37*

Im in australia tho, so ambient is like 25*
[Galaxy Tab  Android Development] jrjunior:
Thanks, now it's working.

I installed stock JMI, OneClickRoot, Deblocked the bootloader, CF-Root, ModaCo Kernel, Overcome ROM and finally V13. All sensors are working now.
[Galaxy Tab  Android Development] bendjlee:
Has any one tried Bluetooth under v13, tried to pair my keyboard and mouse againtoday but couldn't turn BT on for some.reason…