yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
You have tons of kernel mate

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] sak500:
THis kernel can be configured to your own liking via synapse. You can make it perform fast or make it good for battery and long term use or can find middle ground. You can overclock / under clock / under-volt etc. change gov settings from performance to power saving .
[Galaxy S 4 i9500 Android Development] javitolopez69:
yes. but some good adjustments are not bad

---------- Post added at 01:18 PM ---------- Previous post was at 01:09 PM ----------

Idle mode is bad in s4 i9505

can you give me a good fit for this.

Script...
[Galaxy S 4 i9500 Android Development] glennsamuel32:
this kernel and synapse works very well...

and it is maybe the smoothest kernel so far for I9500...

can be configured for power savings or overclocking too...

thx VoLTaqe for your hard work...

I hope you are getting a well deserved rest now :good::good::good:
[Galaxy S 4 i9500 Android Development] VoLTaqe:
Im not give break or not released final version. Im going to released a lot version for you and your needs. So we have long way and hope not alone
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Thanks mate.You are never alone.[emoji2]

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] Martillero:
Definetly not my friend ?
[Galaxy S 4 i9500 Android Development] Arterial Carotid:
Can't use synapse

Hi. I've flashed this kernel ver 3.3 over stock ROM OD4 (last Russian) installed Synapse, but I can't control CPU and GPU settings.
[Galaxy S 4 i9500 Android Development] Aayan 123:
Anything I can customize for better battery?

Used interactive governor works best but battery is falling fast?
[Galaxy S 4 i9500 Android Development] codybank_789:
[MENTION=5592093]VoLTaqe[/MENTION]

I have been trying to switch to f2fs with gear recovery but havent successed.

Whenever i change the partitions ,which are data and cache, to f2fs, it automatically reverts back to ext4 when i boot up.
[Galaxy S 4 i9500 Android Development] yuber26:
Hi guys :fingers-crossed: just a opinion... You could create a kind of guide for the user on how to set parameters in synapse? three types of modes: gaming, multitasking and battery backup? set parameters for the three modes which I think is what usually everyone wants, or seen in the comments, would help much at all, as I say is just an opinion to find a way to help each other and make better the kernel of course, I wish that together we contribute to this cause and create the guide, you guys think? I hope not take it wrong, I just want to provide an idea.. thanks in advance :o
[Galaxy S 4 i9500 Android Development] Bruno_Tec:
HI . One question. Im using your kernel at version 3.2 and its cool but i wanted to ask you something about kernels in general .

In all the phones i've been using , no matter if lg , Samsung or Sony , stock or aosp . All the kernels (stock or custom ) work the same way .

Ir i dont touch the screen, its at 200 mhz and if i touch it , then it jumps to 600 until i stop touching the screen . It never uses the other values except 1200 sometimes . This way of going up and down the values eats the batery of all my phones . It is a solution or i im doing something wrong ?

Please someone help me because i dont know why the same bug follows me no matter the rom , kernel or phone
[Galaxy S 4 i9500 Android Development] VoLTaqe:
I will reduce it.

Confirmed. I ask about it to [MENTION=2386505]Alberto96[/MENTION] if it kernel related i will looking for another way.
[Galaxy S 4 i9500 Android Development] Bruno_Tec:
Sorry i dont get it . Its a kernel problem ? Because this problem of not scaling it happens on all my rooted devices , no matter if im using a custom kernel or stock or aosp or stock
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Its not a kernel problem .Its a way of Andriod to give you good touch response.He said he will reduce the freq to below 600mhz on touch.If you want to have this problem completly removed buy a phone which tons of devs .I think there is a feature called snakecharmer which reduces it[emoji2]

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] Bruno_Tec:
Thanks for explaining this to me . I had a xperia zl and today a s4 and a g2 and the 3 devices on stock unrooted had great batery while screen on . (Like 5 hours or a little more ) .

The 3 devices when i rooted them (not even instaling a custom rom or kernel ,Just root them) get a bad batery while screen on (3 hours or 2:40 hs) using the same apps and no one was a root app (except super su, titanium backup and link2sd ) .

I asked before if the rooting process decreace the batery life when screen on and i was answered that no .

I really dont know why after rooting devices (and nothing else) the batery gets so bad
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Its not a root issue .Stock phones also jump to 600mhz on touch.Anyway am getting great battery only after rooting every phone ever.

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] qazwsx96299:
sometimes SNote and GAPP FC,does anyone get the same problem??:confused:
[Galaxy S 4 i9500 Android Development] coolfx89:
Can we have an option to set the touchboost freq?

Hmm...I want ask the GPU freq, is 177 mhz is the lowest stable freq? Or we can have lower freq for GPU?

No...it is an android fiture...not a bug . .butter project if I am not wrong.
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
[MENTION=5592093]VoLTaqe[/MENTION] BUG:Screen goes black and strip of full bright light seen while using phone(once).Same happen when once i appiled a heavy bootanimation of a theme on mu s4 when using cm11.

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] VoLTaqe:
I dont understand. Please explain more clearly.

I will add touch freq with synapse configurable but now i'm trying add more governors for cpu. I can add lower freq for gpu but it isnt stable so i dont add.

And a little note. Please report ONLY kernel related problems. You use ported roms and rom related problems on my thread. Why ? It's wrong guidance for who want use this kernel. So DONT do it.
[Galaxy S 4 i9500 Android Development] Bruno_Tec:
Thanks . What could be the reason behind after rooting a device the batery when screen is on is reduced so Much?

---------- Post added at 05:31 PM ---------- Previous post was at 05:29 PM ----------

How ? Im not asking for greenify or freeze and app but get the same screen on time . It atways get reduced and i couldnt get the reason why . No matter the device , the rom or kernel . Just rooting a device and boom , batery in that same moment gets worse
[Galaxy S 4 i9500 Android Development] NonXtreme:
NOT BUG

This is what happen when GPU crash, which normally cause by too low voltage and too high overclock.

This kernel still have gpu overclocked freq enabled(upto 700mhz) and sometime the phone overclock by itself in some situation such as when opening recent apps menu.

You can try solve problem by increase the voltage.
[Galaxy S 4 i9500 Android Development] coolfx89:
Oh...great...hope I can get more SOT with lower touch freq.

Yeah..more gov is nice too...I've read the governor guide in LG G2 thread..and there are gov like zzmoove and its variants that good for battery and there is also hotplugging things.

Oh.. I see..better not to add something unstable.

Can't help..never experienced battery issue after rooting...
[Galaxy S 4 i9500 Android Development] aakashdahake:
Hey voltaqe, m using latest build and running A7 cores at 1500mhz and they r running at 1500mhz too,

But can't archive A15 cores to run at 1.8Ghz how they can reach upto 1.8Ghz,
[Galaxy S 4 i9500 Android Development] VoLTaqe:
Changelog 3.4

- Added system wide power efficient for battery save

- Added power efficient for net, sound

- Added regulator changes

- Unnecessary block wake up reduced

Voltaqe Kernel sources also added OP. About 3.4 changelog i say briefly block, net everytime wake up CPU's needlessly so i fix it.
[Galaxy S 4 i9500 Android Development] IMRAN KHAN:
Private mode please..
[Galaxy S 4 i9500 Android Development] VoLTaqe:
I dont know hardly knowladge about porting or private mode. So i fix this only when [MENTION=5244417]alemtro[/MENTION] or yuguo give any information about that. Sorry about this friend.
[Galaxy S 4 i9500 Android Development] khatkhatik:
a special thanks for the source :good:
[Galaxy S 4 i9500 Android Development] Ra2fet:
[MENTION=5592093]VoLTaqe[/MENTION] Is it possible to add zzzmove cpu govern to your kernel? I know that this govern is very battery friendly and gives a good performance as well. Thanks
[Galaxy S 4 i9500 Android Development] VoLTaqe:
I try all day but no luck for uncompitable governors. I will try tomorrow with clear head.
[Galaxy S 4 i9500 Android Development] VoLTaqe:
Changelog 3.5

- Cpu governors tunables now

- Correctation for cpu values

- Added touchkey cpu, gpu control (synapse)
[Galaxy S 4 i9500 Android Development] Martillero:
Downloading and flashing when I get a least 10% of battery ? thanks again voltaqe!
[Galaxy S 4 i9500 Android Development] Ariegradiyanto:
app

excuse me, is this the "synapse" application everyone talking here?

becayse i cant find any other application

thanks a lot
[Galaxy S 4 i9500 Android Development] VoLTaqe:
yes friend
[Galaxy S 4 i9500 Android Development] adhiduzz:
hhmm

as user mate should be sharing to each other yaa :D

ok, waiting for that matter
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Oh thanks,I havent overclocked my gpu but undervolted it so that may be the problem maker thanks for clearing the doubt.[emoji2]

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] kamoto51:
I please help error Prism ™ V15 email Barebone stopped

---------- Post added at 11:24 PM ---------- Previous post was at 11:19 PM ----------

please help error Barebone Prism ™ V15

*** mail stopped
[Galaxy S 4 i9500 Android Development] VoLTaqe:
Back to stock
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Haha thats better for you.Back to stock, or else try clearing app data.

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] Martillero:
For those who want a backup of synapse config; the files u need to backup are in here:

SYNAPSE DATA=/data/data/com.af.synapse/databases

For those who change a lot the values and need a stable reference point.

Speaking of wich, sorry to bother voltaqe but could be much asking to add the script to backup/restore config files in synapse?

If this is pointless just don't bother mate?
[Galaxy S 4 i9500 Android Development] VoLTaqe:
No need friend. You can use titanium backup
[Galaxy S 4 i9500 Android Development] Martillero:
Yep, you're right mate, i ve forget the simpler way ?

And just to know, what's you most used governor? Ondemand or interactive?
[Galaxy S 4 i9500 Android Development] VoLTaqe:
I'm on ondemand for now but not for using. I'm trying add another governors after that all of them search for best governor :)
[Galaxy S 4 i9500 Android Development] khatkhatik:
why use the terrible stock email client

use type mail its awesome and get rid of errorful stock apps
[Galaxy S 4 i9500 Android Development] Air-真心为你:
What about Pasasusq ? It works amazing on my Note2-LTE[emoji2]
[Galaxy S 4 i9500 Android Development] VoLTaqe:
If possible i will add
[Galaxy S 4 i9500 Android Development] cinimod88:
wolfson sound libraries ?

The kernel contains wolfson sound engine ? What is the sampling rate ? 44100 or 48000 ? Thank you verry much !
[Galaxy S 4 i9500 Android Development] cavid4334:
help

i have a problem sound is autotically reduced always........................what should i do
[Galaxy S 4 i9500 Android Development] sathya80:
can anyone post undervolt, battery, gpu, cpu , screen, i/o , sound etc values which are stable.?. would guide rest of us rather than each one of them trying trial and error. :)
[Galaxy S 4 i9500 Android Development] tithy:
Still bug with Bootloop with V3.2

[MENTION=5592093]VoLTaqe[/MENTION],

That's fantastic to see you're breathtaking developer in XDA. :good:

But I encountered 1 debug since the version 1.9 until 3.2. The issue is about having my S4 rebooting every time I use recent app key and trying to scroll down backward or upward. My screen is about having stuck with the high brightness then reboots immediately.:eek::(

Maybe only me who have this issue. Please kindly help me to use this kernel. I am using ROM AURORA I9500.Note4/S6 Port 4 V8.0.

Thanks.
[Galaxy S 4 i9500 Android Development] rgshah3:
It has been mention before!

It's a ROM issue
[Galaxy S 4 i9500 Android Development] h4haideralii:
Google App FC after flashing v3.5

+ Messaging App also Fc sometimes .

Wiped Cache ;Dalvik .
[Galaxy S 4 i9500 Android Development] zetlaw:
Votages are individual. We have the same SOC but it can be stressed differently. Start by lowring all by -25

If all goes well lower 25 more.
[Galaxy S 4 i9500 Android Development] VoLTaqe:
Read OP with red color saying
[Galaxy S 4 i9500 Android Development] NonXtreme:
As for phone crash by opening recent apps. It cause by gpu crash because phone overclock gpu by itself upto 700mhz on recent apps. I have reported this several times but the issue still exist.

Try overvolt the gpu for more stability.

For real fix I think kernel dev need to figure out how to control this or remove gpu overclocked freq completely.
[Galaxy S 4 i9500 Android Development] Asha60:
It's not ROM issue. it happens only with this kernel.

It is as related to GPU crash because of overclocking the GPU.

It can be solved as

NonXtreme

mentioned by overvoltage the GPU.
[Galaxy S 4 i9500 Android Development] VoLTaqe:
3.6 Out.

After all night work i finally add more governor to kernel. Now we have intelliactive, darkness, nightmare, wheatley, alucard, pegasusq, dancedance, abyssplug, lionheart governors too. Governors incompatible with exynos system source but i port some utilities from snapdragon. Because of i have to delete interactive but you can use intelliactive, it work same principle with interactive and all governor tunable too. When you select a few governor you see permission denied error just ignore it. Only system limitation but applied when you select even permission denied error. Hope you love and sorry for delay, have a nice day.
[Galaxy S 4 i9500 Android Development] Martillero:
??? OMG! What delay, you're super fast man! Thanks a lot!

Waw just flashed, and u put me in a dilema, so many govs i will need some time to test them all ?

Now I'm very happy, great job as usual ??
[Galaxy S 4 i9500 Android Development] ilya39:
Maybe it'll be better to post a short note about all new governors? Just a few words about each of them toknow better what to use for different situations :)
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Awesomeness!!

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] sak500:
Cheers mate for you constant hard work in perfecting the kernel. Can we get explanation of what each governors do ? Also as i said earlier can you try your hand on cooking a ROM?
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
1)There are many guides about governers in xda please check it

2)Why should he do it?To add more workload?We have lots of other good roms already.

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] Aayan 123:
Please refer to this it has most of the governors which he added recently

http://androidmodguide.blogspot.com/p/blog-page.html?m=1
[Galaxy S 4 i9500 Android Development] sak500:
Are you his secretary talking on his behalf?

---------- Post added at 02:36 PM ---------- Previous post was at 02:35 PM ----------

Thanks mate.
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Sorry If you got hurt.It is a XDA rule to search before posting.Also please study english to type and a browser to type[emoji2] Also dont be lazy and rude to me.

My first result in screenshot above.

Please type andriod governers(what you needs to want to know)[emoji35]

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Haha [MENTION=4830018]Martillero[/MENTION] I was starting to create a post about all governers of this kernel but you nailed it.Am jumping between Dance Dance and Alucard.

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] rbhanot2:
Hi Guys,

Sorry for my transgressions if any, so here is the thing i haven't installed any custom kernel till now; so my question is how does it benefit to install a new kernel over the stock kernel ? Does it improve the performance significantly or its just a marginal difference and if yes then on what different parameters the performance improves..
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
It can do wonders it can double battery and performance as you choose.Improve battery.reduce heating.improve sound ,LED,sd card read value etc .Its awesome.Try it out

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] nevinjoseph:
Feature Request

Is it possible or is there any possibility to add 'touch to wake' or 'double tap to wake' option in this kernel.

I found this feature very useful when i was using Boeffla kernel on my i9300 and something which I miss a lot changing phone to S4.

Strangely I've seen such a feature on any of the i9500 kernels. I hope it is not a hardware limitation.

BTW thanks OP for this wonderful kernel. It is like a breath of fresh air to our i9500.
[Galaxy S 4 i9500 Android Development] white7561:
We can. But that feature will drain our battery more
[Galaxy S 4 i9500 Android Development] nevinjoseph:
Yes I am aware that it will drain battery as the digitizer is kept always on and it prevents the phone activating deep sleep. I was just wondering if there could be a timeout set in which the display would turn off while the digitizer would be kept on for say a further 30 to 60 seconds after which the digitizer would be turned off as well.

That way when we touch the screen right after the display goes black, it could be turned back on without actually pressing the lock or home key. Keeping the digitizer turned on a further 30 or so seconds is not gonna drain the battery much.
[Galaxy S 4 i9500 Android Development] white7561:
Yup

---------- Post added at 05:08 PM ---------- Previous post was at 05:05 PM ----------

And. OP. Its up to you but. I have some experience with stweaks that it fc. Even i reflash kernel and wipe all config. So if u can . why we not use synapse? Its more good isnt it? And. Can maybe our device use hotplug? Does the cores power is same even we turn off the cores?
[Galaxy S 4 i9500 Android Development] ameshiya:
Just one thing to add After Flashing The LaTesT VLT KerneL , You Need To ReseT All Ur Old STweaks Configuration
[Galaxy S 4 i9500 Android Development] white7561:
Yup. But if the stweaks itself is buggy. And need to full wipe to make it work again. Who wants? Its suggestion to use Synapse cause it have more option and it is more stable then the stweaks. Thx OP
[Galaxy S 4 i9500 Android Development] ceneszzz:
+1

agree for Synapse support :good:
[Galaxy S 4 i9500 Android Development] Emuruyas:
Bide bizim gibi çat pat anca anlayan kişilere özel çeviriler olsa güzel olucak :)

Thanks bro. İnto the hands of health
[Galaxy S 4 i9500 Android Development] white7561:
[MENTION=5107887]ceneszzz[/MENTION] Check my PM bro. :D
[Galaxy S 4 i9500 Android Development] PremiumISM:
I tried boeffle. No support

Nope. Synapse support led

I am feeling faster charging than before

I don't think stweak is buggy. Stweak configuration reset due to wiping cache & dalvik cache

Whatever i support Synapse
[Galaxy S 4 i9500 Android Development] rgshah3:
It's 1600 while the screen is on! 1200 will give a very slow charge!

I clearly remember it being 1600 when I was on touchwiz
[Galaxy S 4 i9500 Android Development] white7561:
[MENTION=5383014]PremiumISM[/MENTION] you may think its doesnt buggy. I think it. But when i used to flash kernel that have stweaks its ok. But someday i decided to install the kernel. And after installing stweaks. It just fc. So i re flash kernel 2 times. And wipe old UCI settings. Then wipe the stweaks data. and still.

---------- Post added at 06:57 PM ---------- Previous post was at 06:56 PM ----------

Yup. Before the samsung change it! . btw i always use 2097MA screen on and off :D
[Galaxy S 4 i9500 Android Development] math.teach:
Ne işe yarıyor bu :)
[Galaxy S 4 i9500 Android Development] nebulafire:
Kardeş teşekkür ederim iyi oldu bu. Ama telefon ilk açılışta çok kasıyor kendini. Ve bişey daha dikkatimi çekti oyun oynuyorum oyunun çözünürlüğü çok değişti tuhaf oldu. Aslında iyi oldu ama sebebini çok merak ediyorum neden kernel nasıl fark ettiriyor?

Good work bro. Thanks. Work fine for me :)
[Galaxy S 4 i9500 Android Development] white7561:
Sorry but. English please?
[Galaxy S 4 i9500 Android Development] aakashdahake:
Must be implemented... +1
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
It cannot be done guys .I think it is a hardware one.No one ever has implemented it.Anyway its a huge battery eater.with home button in front of s4 it is a overkill anyway[emoji2]

Keep calm coz IPL belongs to KKR
[Galaxy S 4 i9500 Android Development] rgshah3:
If you see the s4 Q&A page, you'll notice he's trying to port this since Dec14 but has been unsuccessful
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
I know it and yes its really hard to do in i9500.Any way i dont agree [MENTION=4800335]aakashdahake[/MENTION] saying"it must be inplemented"

Keep calm coz IPL belongs to KKR
[Galaxy S 4 i9500 Android Development] Halcyon:
Thanks cool, good to see ntfs support too, most custom kernels dont support glove mode how about this?
[Galaxy S 4 i9500 Android Development] rbhanot2:
Thanks for the reply mate, so how do i revert in case i want to ?? Does flashing a new rom restore the kernel shipped with it as well ?

---------- Post added at 03:45 PM ---------- Previous post was at 03:44 PM ----------

Thanks for the reply mate, so how do i revert in case i want to ?? Does flashing new rom restore the kernel shipped with it as well ?
[Galaxy S 4 i9500 Android Development] shiruuu.samad:
Yes flash rom and you will be back or flash stockkernel.zip provided in Light weight kernel thread

From my s4 Powered by

Prism barebone v15

LWK or VoLTage kernel.
[Galaxy S 4 i9500 Android Development] rbhanot2:
Awesome thank you mate !! Sorry but i don't see stockkernel.zip in that post !!
[Galaxy S 4 i9500 Android Development] coolfx89:
Sorry if it has discussed before..but why there is no GPU freq control? I mean I want to set my GPU freq min and max to 177.

And one more noob question..where I can set the touch boost freq? I change the CPU boost freq but nothing happened..it still go up to 600 mhz.
[Galaxy S 4 i9500 Android Development] Halcyon:
I came to report this kernel is not compatible with Aurora Roms and makes many ported apps force close
[Galaxy S 4 i9500 Android Development] Bruno_Tec:
For example ? In using aurora 7.5 and i dont have any problems using Samsung ported apps . I have 1 random fc with messages or contacts after turning on the Phone but it doesnt affect its use .

---------- Post added at 04:35 PM ---------- Previous post was at 04:30 PM ----------

Im using dance dance governor .

Any idea why the battery drops as fast as on demand-sec and why cpu frequency doesnt go down more than 800 mhz?

With ondemand it went to 200 mhz until i touched the screen then jumps to 1200mhz until i stoped touching the screen.

PD : i did the 3 wipes after flashing kernel so its not a flashing problem.
[Galaxy S 4 i9500 Android Development] Martillero:
Try alucard, for me is working awesome. Uses mostly low freq.