yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab  Android Development] stailer:
Ov/uv settings

wow, GREAT WORK!! 3.0.8c:)

undervolting

my settings 100-200:p

200-150

400-125

600-150:cool:

800-125

1000-75

1200-100

1400-50:mad:

NEEED YOUR PAY PAL account to say THX!!!!!!!!!!!!:o
[Galaxy Tab  Android Development] hkbr:
What is your Governor setting? My Tab is not stable at 1400, even I set 1400-0
[Galaxy Tab  Android Development] TheGrammarFreak:
All silicone is different. My Tab is capable of 1.6GHz, some can't even to 1.2. :o
[Galaxy Tab  Android Development] nobleskill:
+1

and subject to change without notice. As they age the components will start to degrade. Remember, planed obsolescence is what drives industry and feeds progress.

Sent from my GT-P1000
[Galaxy Tab  Android Development] af974:
Sorry mate, it is a joke :D.......can't resist since is what i use for work.

Sorry for OT :p
[Galaxy Tab  Android Development] hkbr:
no wonder, thanks.
[Galaxy Tab  Android Development] hkbr:
Good catch!
[Galaxy Tab  Android Development] OsitKP:
I can't make my Tab to blink with BLN control app. 3.08c kernel. Any suggestions?
[Galaxy Tab  Android Development] koxudaxi:
sorry....

i found a bug which is about LCD under voltage .

it don't work on gingerbread.

so today, i can't release new version.

i must fix it.

did you get a pro version?

ok,i will contact him to ask about it

i know it.and i think 3_0_8c use a lot of cpu power for smooth.

next version will be added new under voltage and fixed LCD under voltage.

these will make tab cool body...i wish it.
[Galaxy Tab  Android Development] koxudaxi:
i just uploaded new test version.

build 3_0_8c based a kernel.

change log:

fix LCD UV[2.4V,original is 3.3V] (old ginger bread version don't work uv on LCD)

add internal voltage UV as sysfs . apps can't controrl this files.

heimdall:zImage_euro_3_0_9NEW!!

cwm:zImage_eur_3_0_9_cwm.zipNEW!!

how to applying internal voltage UV

if you want to change all voltage to -25 mV

#echo "25 25 25 25 25 25 25 25">/sys/devices/system/cpu/cpu0/cpufreq/int_UV_mV_table

you can confirm current setting

#cat /sys/devices/system/cpu/cpu0/cpufreq/frequency_int_voltage_table

[frequency][stock internal voltage][real internal voltage]

my setting

0 50 50 50 50 50 50 75
[Galaxy Tab  Android Development] AndroidGX:
Hi kox ! thanks for uploading your new kernel, I go test this after installing 2.0.1 overcom new rom.

Strange to see you don't recommand lower value than -50 ? some other on that thread tried -100 (me too for today without any issue from 200Mhz to 1000Mhz with Smartass gov, nice battery life btw!).

I guess the latest -75 value that you mentioned is for 100 Mhz ? is that right ?

Again, many thanks and great work!, can't wait to try 3.0.9 :D
[Galaxy Tab  Android Development] koxudaxi:
thanks !!

i have not tried 100 and up yet.i just build it. i don't have the time to try a few value.

normal voltage is max 15000 which is call arm_volt in the source code

but, internal voltage is max 12500.

Probably,internal voltage can't down big value like -200

it is 4:05 am . i must go to bed~;)
[Galaxy Tab  Android Development] AndroidGX:
Ok many thanks ;)

You desserve your bed ! :D

See you soon ! :)
[Galaxy Tab  Android Development] :
it refers to the internal voltage, not to the managed by "voltage control" app (seems to me)
[Galaxy Tab  Android Development] :
thx koxudaxi!
[Galaxy Tab  Android Development] :
screen backlight

hi,

in 3.0.8-c, it seems to me that the screen backlight (auto) is not working properly.

in external sites, the backlight is lower and the screen is not readable.

in internal sites, the backlight works properly.
[Galaxy Tab  Android Development] :
now on 3.0.9. THX!

screen auto backlight don't works on 3.0.9 (like in 3.0.8)
[Galaxy Tab  Android Development] AndroidGX:
Are you sure internal voltages aren't controled by "Voltage Control" app ? :( what it is supposed to control then :confused: I'm confused a bit (I'am still discovering this world) ;)

Working nicely here, even on 3.0.8c.
[Galaxy Tab  Android Development] :
the mode to control the internal voltages is (in boot mode) creating a file in /system/etc/init.d that starts the uv settings (like koxudaxi dixit)

i dont known if its possible to change these values on the fly

don't works for me.

if sun in the sky, the screen text is not readable :(
[Galaxy Tab  Android Development] koxudaxi:
Hi,

My tab can control back light over auto.

I don't know why your tab can't do it???
[Galaxy Tab  Android Development] OsitKP:
Autobrightness works for me as well. But how to make BLN work? I can't get any results at all. 3.0.9 kernel. SGT P-1000.
[Galaxy Tab  Android Development] Alvin Lai:
@Bartito

Try to off and on back the auto brightness.

This trick work for me
[Galaxy Tab  Android Development] 4exess:
Autobacklight works for me on 3.0.8c and 3.0.9
[Galaxy Tab  Android Development] :
ok, tried and works.

but in outdoors the backlight is not the best. in the beach,

with the sunglashes, and the sun in the sky, the tab screen is

not correcltly visible :)

thx
[Galaxy Tab  Android Development] OsitKP:
Imho, it's a fee for UV screen voltage/longer battery life.
[Galaxy Tab  Android Development] :
yes, no problemo :)
[Galaxy Tab  Android Development] ming0971:
Any other mirror to download, i cannot download the kernel from the link. Tq
[Galaxy Tab  Android Development] rainbow ng:
Is there any possblity to have a kernel without the oc/uv script but retain the ability to mount ext4 system only?

Just want to make a test to compare between the battary drain between stock, ext4, oc w uv and oc without uv.

Thank you
[Galaxy Tab  Android Development] nunggg:
I can't install cwm:zImage_eur_3_0_8_cwm.zip in overcome recovery

( overcome 2.0.1 ) it say install abort
[Galaxy Tab  Android Development] warm.shine:
The defult setting is none OC/UV

by 左腦
[Galaxy Tab  Android Development] OsitKP:
It's OK. Try to download the kernel again. (I got similar problem when I tried to install overcome kernel. Had to flash it twice. The second one with Odin as Tab freezes at "Smsung Galaxy" screen).
[Galaxy Tab  Android Development] nunggg:
Thanks you for answer I doing to download agian :)
[Galaxy Tab  Android Development] Byrana:
I flashed the new kernel and everything went fine. Also i did the internal uv but personally I get the feeling that the battery drain is slightly higher. Do i need to wipe dalvik or cache before flashing a kernel?
[Galaxy Tab  Android Development] 4exess:
+1

Or way higher than 3.0.8c
[Galaxy Tab  Android Development] AndroidGX:
+1 !

Battery drain was better with 3.0.8c.

On and 3.0.8c, I never had any UV problem, I was with -100 on everything (untill 1ghz) and my device never froze and reboot, which was the case on 3.0.9 when I tried to open Market. :(

I'am now with -75.
[Galaxy Tab  Android Development] OsitKP:
Probably it's because of different version of kernel. 2.35.6.13 in 3.0.8c and 2.35.6.7 in 3.0.9.
[Galaxy Tab  Android Development] AndroidGX:
3.0.8c was with 2.35.6.7 too ;) it has been .13 only on the 3.0.8 (if my memory is good) and stopped to be at 3.0.8b.
[Galaxy Tab  Android Development] 4exess:
3.0.8c was back on. 7

I went back to 3.0.8c

Wanna try sio ondemand with3.0.8c
[Galaxy Tab  Android Development] rainbow ng:
左腦兄，

There is differnet between a kernel with oc/uv ability but is set to default none Oc/uv situation than a kernel without the Oc/uv script.

That just like a car modifed to turbo engine but didn't switch on the turbo with compare to a stock car. Just want to eliminate the change of power drain for this factor.

Moreover, I just try the HTC flyer (7inch) 1.5Ghz , amazing smooth with low operating temperature, this make me more concern on the performance of the Tab.
[Galaxy Tab  Android Development] koxudaxi:
Oh,it may be truth to wipe any cache.

Many kernel may not bad...
[Galaxy Tab  Android Development] OsitKP:
Mr. koxudaxi answer please, how to turn on BLN. I still can't get it working. :(
[Galaxy Tab  Android Development] koxudaxi:
Ok

Did you install the library for BLN?

Also did you use bln app?
[Galaxy Tab  Android Development] OsitKP:
1. yes (I used yor kernels 3.0.8c and 3.0.9 which already contain the library)

2. yes
[Galaxy Tab  Android Development] Byrana:
I just wiped Dalvik and cache partition to see if it will have any effect on the batterydrain but so far 3.0.8.c had less drain.

BLN worked fine for me just installed the app...

BLN won't work if you apply the backlight the way the..... patch for people that had trouble...the libary for bln will install with kernel...do not change the lib if you want bln app to work.
[Galaxy Tab  Android Development] OsitKP:
So do I. It's clear. How do you test BLN? Missed calls/SMS? Or other way?
[Galaxy Tab  Android Development] koxudaxi:
i had wiped the cache.it have ran past 2 hours ...

i'm feeling it is not good,but i think ginger bread rom spend a lot of power ...

i excuse battery life.

it means i should remove the library for BLN in my cwm's zip?

ginger bread rom don't support Missed calls and SMS on BLN

you can test BLN in BLN apps where is 'Led notification' in Test section
[Galaxy Tab  Android Development] triplex76:
blinker tab is a good app and work without bln to get blinking on a missed call/sms
[Galaxy Tab  Android Development] Byrana:
I think it just a personal reference. I have no problem with or without the lib :D

All it needs is a file explorer for root and a simple copy&paste and no matter what way.

I will gain nothing from BLN because my tab is covered and I won't see it blinking :D

It takes me about 20 secs to copy the other lib over yours...so i guess it is just a question for people that do not know how to copy&paste.
[Galaxy Tab  Android Development] OsitKP:
Thanks, it's really the only working application, but... in comparison with BLN control app it has no settings for frequency and time of blinking. :(
[Galaxy Tab  Android Development] OsitKP:
Don't you think you are smart! :)

First, there's no problem to copy the library. The question was HOW to make it work. (It doesn't blink or turns on or does anything else at all.

The second thing, for example, OC kernel does overwrite this library on every boot. So your skill to copy/paste in this case means nothing. :D
[Galaxy Tab  Android Development] Byrana:
I was refering to Kox's question if he should remove the libary from his kernel and my copy&paste version works like a charm. After copying you need to mount as read only again but I am not certain if that refers to your problem because I didn't read about it.
[Galaxy Tab  Android Development] koxudaxi:
New test version...

i believe any patch is not bad.

everyone should wipe any cache.

change log:

BLN is off as default .you can use BLN by app and sysfs

fix cf-root.it was broken in my kernel (thanks to humberos)

set UV on internal voltage as default

freqency,stock-voltage,UV

1400000 1175 1175

1200000 1175 1125

1000000 1100 1050

800000 1100 1050

600000 1100 1050

400000 1100 1050

200000 1100 1050

100000 1000 925

NEED to wipe any cache!!

heimdall:zImage_euro_3_0_10NEW!!

cwm:zImage_eur_3_0_10_cwm.zipNEW!!

new my uv setting by voltage control app

ferq,uv

1400,-25

1200,-75

1000,-50

800,-100

600,-125

400,-100

200,-125

100,-175

i know it. but i don't like it...thanks
[Galaxy Tab  Android Development] AndroidGX:
Great job mate!

I only did a "wipe cache partition", is it okay ? or do I need to wipe date/dalvik aswell ?
[Galaxy Tab  Android Development] koxudaxi:
thanx

i recommend cache partition and dalvik!!
[Galaxy Tab  Android Development] warm.shine:
dont you need sleep bro ?
[Galaxy Tab  Android Development] koxudaxi:
of course i must sleep!!

i couldn't stop experimentation for tab...

i will sleep soon.
[Galaxy Tab  Android Development] DarkPal:
Otsukaresama Koxudaxi sensei :)
[Galaxy Tab  Android Development] triplex76:
look better it got EVERYTHING!
[Galaxy Tab  Android Development] AndroidGX:
Okay thanks ;)

Big afraid there is 5 mins :mad:

I flashed 3.0.10 and set same settings of kox in voltage control, and when I came back to home, my tab wasn't abled to turn on !! :eek:

Nothing to do, screen remaining off, no boot, no samsung logo, nothing !

After 10 mins trying to turn on, the device finally accepted to start again ! :D (phew!)

I immediatly turned all my settings on voltage control back to -100 for everything, and now gotta flash the kernel again but with wipe cache + dalvik :)
[Galaxy Tab  Android Development] Byrana:
For people that are going to flash the new test kernel make sure you set your voltages back to default...if you applied it on boot...before flashing the kernel. Kox undervolted internally and if your voltage app settings are to low you might have trouble with freezes and bootloops.

Kernel works great just have some wifi reconnecting issues...sometimes it doesn't connect if you walk in and out of wifi range.

Battery seems to be better ... how much is hard to tell.

I am using stock..safe..gb from overcome.

Great having you here.

Kudos
[Galaxy Tab  Android Development] ezynow:
Hi Master k,

can confirm screen not powering down properly. Seen in. 8 / 9 / 10 kernels.

To repoduce try 'adb reboot' - the screen justs goes blank but is not actually off.

You have to 5 second power down then boot up normally after that.

Maybe -240 uv is a little too much.

Cheers
[Galaxy Tab  Android Development] nunggg:
I used kernel 3.08 , 3.09 flash in overcome 2.01 ( new rom ) everything is ok

but i found problem of brightnees can't adjust please fix problem for this rom :D
[Galaxy Tab  Android Development] OsitKP:
They wrote here already. This only confirms that YOUR device can't work in this mode. Physical parameters (and frequency as well) change from one device to another. The more it's non standard mode, so no guarantee.
[Galaxy Tab  Android Development] OsitKP:
I was definetely blind! :D

But all in all there is no "duration" parameter.
[Galaxy Tab  Android Development] koxudaxi:
Thank you for all reports

All silicon is not same .

Now, i'm trying more low voltage on cpu ,ram,LCD

My tab is working fine .seem battery life is good

Edit1:

My tab have used battery power 10% per 1 hour when use browse,twitter,news.

In sleep,used one 1% per 2 hours
[Galaxy Tab  Android Development] 4exess:
same here on standby battery usage was 2% for like 6 hrs but on browse , apps eats a lot of battery

so far 3.08c was best for me regarding power/performance

tnx again sensei ill keep testin

keep up the great job ur doin for all of us!

edit

since u removed bln from ur kernel could u insert that lights.s5pc110.so patch or a an option to switch off light key as it gets overwrited with the default on every boot

tnx
[Galaxy Tab  Android Development] nunggg:
For lights.s5pc110.so file not match with overcome 2.01 after i install kernel

3.08c by cwm lights.s5pc110.so file will replace lights.s5pc110.so of overcome

I can't adjust brightness by auto or manual :(
[Galaxy Tab  Android Development] OsitKP:
What gets overwritten? I put patch library and keys go off in a 3 sec. There's another thing with that lib. When unpatched, I turn off the leds (f.e. with Blinker Tab or Button Brightness widget) and they are off until I push the power button. Patched lib turns the leds on on every touch or pushing any button. :(
[Galaxy Tab  Android Development] AndroidGX:
I have a question to you guys,

How do you choose thoses final UV values ? by making some blind values ?

I was testing something yesterday night: trying to set via SetCPU for exemple the value at 100Mhz and stressing via SetCPU for 5 mins and trying to get lowest UV value as possible until the device froze, and I stopped at -150, did the same for 200 Mhz and found -150 too, everything was ok when I was trrying to update an app via Market and device froze and rebooted.

I can't understand how it can reboot as I stressed those two mhz values and controled ok with a stress test of 5 mins :confused:
[Galaxy Tab  Android Development] ezynow:
I agree. But the lcd screen undervolting is set permanent at 2.4 volts. So if masterk can upload a version with either 2.6 / 2.8 v that might help eliminate some issues of screen not powering down properly for some of us at least.

However cant be sure as i tried different uv settings and seemed to reboot ok from adb will try different settings and report back maybe screen is ok at 2.4 v.

Cheers
[Galaxy Tab  Android Development] sovi3tss:
Currently using the Hermes build with the overcome kernal want to try the 3.10 build by Koxudaxi is it better than Overcomes?
[Galaxy Tab  Android Development] koxudaxi:
I just tried to use 3_0_4

It used battery power, 14% per a hour.

I said 3_0_9 used 10% per a hour.

My kernel may not bad.. i hope to come 2.3.4

I dont recommend my kernel which is test version.

yes, i think lcd is oc. it seems internal or cpu voltage is low.

i can think two reasons that internal voltage is too low and changing frequency is stress on cpu

ok, i will remove the library in my zip.

thanks.

i will upload next version...Please test when i build it.
[Galaxy Tab  Android Development] koxudaxi:
New test version

this version has a theme that stability and long battery life.

i downed LCD voltage to my limit. if you feel noise on LCD then Please spake me it.

change log:

remove changing HZ patch and compiler option for battery life

LCD voltage is 2.1v (previous version is 2.4v)

set UV to 1.7v for ram (default is 1.8)

remove the library for bln in my zip by a request.

freqency,stock-voltage,UV

1400000 1175 1175

1200000 1175 1150

1000000 1100 1075

800000 1100 1075

600000 1100 1075

400000 1100 1075

200000 1100 1075

100000 1000 975

if you feel battery drain, i recommend to wipe any cache!!

heimdall:zImage_euro_3_0_11NEW!!

cwm:zImage_eur_3_0_11_cwm.zipNEW!!
[Galaxy Tab  Android Development] patomas:
Noise

Tried last one. Lcd doesnt work. Only noise on screen. I'll try to flash a different kernel (with odin because I dont see anything in recovery!)
[Galaxy Tab  Android Development] koxudaxi:
thank you for your replay.

i have changed LCD voltage to 2.4v

i just re-uploaded fixed one.

zImage_euro_3_0_12NEW!!

cwm:zImage_eur_3_0_12_cwm.zipNEW!![/QUOTE]
[Galaxy Tab  Android Development] DarkPal:
Koxu for LCD and RAM 2.4V and 1.8 should be max UV more than that it breaks on some tabs (most of them ;) )
[Galaxy Tab  Android Development] 4exess:
3.0.11 works for me

UV -100 all ove the board no noise

gonna test more & report back
[Galaxy Tab  Android Development] koxudaxi:
yes. but, i must test about RAM.

1.8 v is default voltage which may work on RAM...

up voltage can break a hardware,but under voltage might break one which could break only software.

i think it is lower risk than up voltage .

thanx i'm waiting your report.
[Galaxy Tab  Android Development] 4exess:
1 thing ive noticed since booted on .11

tab runs hotter
[Galaxy Tab  Android Development] koxudaxi:
Please use this template for writing a repot

[kernel ver]

[Rom ver]

[up time]

[governor]

[I/OScheduler]

[previous kernel]

[bad point]

[good point]

sample

[kernel ver]3_0_11

[Rom ver]stock for japan

[up time]about 40 min

[governor]smartass

[I/OScheduler]sio

[previous kernel]3_0_10

[bad point] no. i don't meet a bug yet.

[good point] <----- a blank is ok in any line

:(.
[Galaxy Tab  Android Development] kongark:
[/QUOTE]

I guess 2.6 will do the trick.

Camera app needs more then 2.4 i guess.

Regards and my compliments.

K.
[Galaxy Tab  Android Development] The Transporter:
Hello,

I just rooted my galaxy tab and installed a fresh Overcome 2.0.1 Hermes.

I've applied your Kernel 3.0.11 and I have no problem.

I've also installed setCPU (ondemand/Min100/Max1000) and Chainfire tools suite from market.

Everything seems to be going well but I cannot comment on the battery life, I just unboxed it 2 hours ago.

I will report back in case of problem ;-)

Thanks for your work !
[Galaxy Tab  Android Development] AndroidGX:
+1, my tab is now running over 35° celcius without doing anything special, even at standby, which wasnt the case before (something around 25°).

Moreover why each time changing LCD/RAM/SCREEN voltage each releases ? please STOP kox ! find any fix voltage and don't touch, I say that because on 3.0.10 I found my almost over perfect stability under voltage and once I flashed 3.0.11, had 4 reboot loop, and can't access voltage control at time, after few try I did, and set settings to default UV, but now my almost perfect old settings are not working anymore on 3.0.11, so I need to start from the beginning again.. :mad:

I'am testing 3.0.11 for 2 hours now and I'm finding the battery drain a bit better on 3.0.10 ;)

I noticed something else too, impossible to listen music, really, every 2 seconds is like "crispy" horrible crashing sound, don't know how to explain but really I can't listen any music on my device.

Did you changed any sound driver or voltage about sound ? I tried with default UV, same problem..

Please would be nice of you can do something about it :(

*edit*: flashed 3.0.12 and same problem (normal as it was concerning a LCD voltage only)

Many thanks kox!
[Galaxy Tab  Android Development] ezynow:
Masterk,

Not sure how relevant but noticed smartass is causing issue. If i press power to turn off screen then wait for 10/20 secs and press power button to wake screen then it takes a few seconds to power up.

However, if i am on demand the screen turns on instantly.

Scheduler sio for both cases.

Will try further testing it seems smartass is slow/buggy to respond on my setup with:

stock gb / chainfire (taken from stocksafe-gb.zip from oc 2.0 rc1) + k kernel .10

Just thought it might help sum1
[Galaxy Tab  Android Development] nobleskill:
Had to say it...

Captain state the obvious says: reflash v10......

I like the variety and at the end of the day I'm thinking he is doing this mostly for his tab and we are just lucky he shares and takes the time to try and help... top shelf dude IMO..

Thanks Kox. On overcome for now but going to dip my toes in the water so to speak with yours over the weekend. Peace brother.

Sent from my GT-P1000
[Galaxy Tab  Android Development] OsitKP:
3.0.11 seems to work for me. But I've got feeling too that right part of my Tab became hotter. How can I monitor it's temperature (what app?). Thanks!
[Galaxy Tab  Android Development] Alvin Lai:
Perfect system monitor app. Using the Widgets.
[Galaxy Tab  Android Development] rxprenegade:
What kernel for now ?

Hello has all and thank you for your doggednesses has to develop our GT.

I ,m in the last overcome Rom (GOLD full ) then I installed the stake there has in the daytime of the kermel hermes whitout wips.

I worked a lot on a theme which looks like the honeycomb theme with heights of widgets to arrive has a final result which pleases me (see joint Screenshots) .All seem to work correctly set apart that in certain changes of page, the transition is jerky and it becomes annoying.

I suppose that it is of in the kermel. So, I would like to know before anything final, which is better today? According to the previous comments, it seems whether it is the version 3.0.10. Do you think you that I can install it keep all my current configuration and to have a better scrolling of screens?

a lot of thanks

sorry for my bad english
[Galaxy Tab  Android Development] CHENBATU91:
thanks kox

using .12 camera becomes blur, go back to .10
[Galaxy Tab  Android Development] The Transporter:
are you sure about the version?
[Galaxy Tab  Android Development] 4exess:
[kernel ver] 3.0.11 (3sec lightkeys patched)

[Rom ver]OC Hermes

[up time] ~11hrs

[governor]smartass @1 ghz

[I/OScheduler]sio

[previous kernel]3.0.10

[bad point] runs hotter(~36 C) , battery uasge on full throtle ~10% / 0.5 hrs

[good point]stable @ 1Ghz -100 UV , battery usage ~3% idle 9hrs , no screen noise , no app problems

[tab] Unbranded P1000 EuroTab

[quadrant score] 2600 /smartass@1Ghz -100 UV

bottomline a lil power hungry and runs hotter
[Galaxy Tab  Android Development] rock4mayo:
me too...
[Galaxy Tab  Android Development] biopsin:
search for battery monitor in market?

Download a battery monitor from market..