Develop Bugs

Kernel Question

Hello all,
I recently purchased an S3 and just trying to figure everything out for it (as I am coming from the nexus where everything is much simpler) The only real question I have for everyone is, What kernel is the best so far? Something that is optimized for battery life and speed.
If anyone is from the Nexus development you would know about Franco's kernel which has served me well for a long time, So what I'm looking for is something that is like the Franco Kernel, and has customization settings.
Any insight would be great
Cheers.

When running an AOSP JB ROM (like CM10 or AOKP), I'd suggest ktoonsez's KT747 kernel. It supports overclocking to 2.1 GHz, undervolting, comes with numerous tweakable governors and io schedulers, and it comes with its own adjustment app called KTweaker which is very handy. Just don't use SetCPU or Voltage Control or any other such app with that kernel as they could cause conflicts with KTweaker.
http://forum.xda-developers.com/showthread.php?t=1756776
The current KT747 for Sammy ROMS seems to be having issues with many phones though, so for Sammy ROMS I'd say your safest bet is faux123's kernel. http://forum.xda-developers.com/showthread.php?t=1785466

Much appreciated. I was seeing ktoonsez's KT747 kernel, and figured this was the "main" kernel for the s3 but I just had to know for sure. What you describe with it is exactly what I'm looking for in a kernel...full control of it. Thanks again

Also on KT747 ktoon created his on governor called ktoonservative. It's based off conservative but it's kicking some serious butt with my device :good:. I'm also severely under-volted but that shouldn't really change much as far as battery life.
Sent from my SGH-I747 using xda premium

I tried the kernel (both actually) and had no luck with either, one caused everything to fail ie: wifi, data, launcher, touch screen was unresponsive. And after flashing in the other one that says it is 100% stable on all devices, I was left with a phone that wouldnt turn on, and when it did start up, the screen was unresponsive. I tried clearing caches, fixing permissions, but nothing worked at all.
So I went back to stock kernel. Hopefully some of these issues can be resolved some day.

Xeirro said:
I tried the kernel (both actually) and had no luck with either, one caused everything to fail ie: wifi, data, launcher, touch screen was unresponsive. And after flashing in the other one that says it is 100% stable on all devices, I was left with a phone that wouldnt turn on, and when it did start up, the screen was unresponsive. I tried clearing caches, fixing permissions, but nothing worked at all.
So I went back to stock kernel. Hopefully some of these issues can be resolved some day.
Click to expand...
Click to collapse
Are you sure you flashed the correct version? Both kernels come in ICS and JB flavors.
Also, I haven't seen anyone else with this issue so I'm not sure what happened.
Sent from my SGH-I747 using xda premium

d3athsd00r said:
Are you sure you flashed the correct version? Both kernels come in ICS and JB flavors.
Also, I haven't seen anyone else with this issue so I'm not sure what happened.
Sent from my SGH-I747 using xda premium
Click to expand...
Click to collapse
Never seen these problems before.....
Are you sure you downloaded and flashed the right one?
DAMN I MISS FRANCO KERNEL!!!!!!! It was on the note n7000 in a way I wish it could come to the S3

CM10 M2 Lag after initial reboot, kernel issue?

Ok so to make a story short:
I installed CM10 M2 wednesday, everything went AWESOME. Smooth, responsive, fast! Pure JB awesomeness. Then, satuday i decided to flash Faux123 kernel to have additional governors and from that point, everything has been terrible. The phone has been extremely laggy, it randomly rebooted and sometimes when i turn off screen, it doesnt want to turn back on and i have to battery pull.
Since that, i have formated the phone at least 5 times, i tried just a factory reset, complete wipe through CWM, reflashing rom, but nothing worked. What really weirh though is when i reflash the rom, and reinstall all my apps and put everything back, until i reboot the phone once, the phone is smooth and stable. But as soon as i reboot the phone, i'm done. It becomes laggy again, reboots and has sleep of death.
I'm really perplex as to what can cause this. I honestly am just about to ODIN this phone back to stock and just wait for official JB...thats unless somebody here has a quickfix?
I'm assuming when we reflash rom it also reflashes kernel, maybe reflahing just the kernel will solve this? anybody got a link? or a kernel to suggest?
EDIT: Now i can reproduce the problem. Everytime i turn off screen and i turn it back on shortly after, it reboots

Try ktoonsez kernel. He seems to be putting more updates than faux. Faux hasn't updated since August and ktoonsez updated 5 days ago.
Sent from my SGH-I747 using xda premium

No he does update his kernels he just doesn't update them on original thread. My build version is Oct 13th. But ktoosez has cm10 kernels?
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I managed to isolate an issue, this issue is present when i use any other governor but On Demand. As soon as i switch, the phone starts to lag a lot and crashes

polish_pat said:
I managed to isolate an issue, this issue is present when i use any other governor but On Demand. As soon as i switch, the phone starts to lag a lot and crashes
Click to expand...
Click to collapse
And yes, ktoon has TW and AOSP kernels for ICS and JB.
Sent from my SGH-I747 using xda premium

I agree with d3athsd00r, Use ktoonsez kt747 kernel. Im running CM10 M2 as well and everything is fine for me, especially a significant improvement in battery life

DarthDerron said:
I agree with d3athsd00r, Use ktoonsez kt747 kernel. Im running CM10 M2 as well and everything is fine for me, especially a significant improvement in battery life
Click to expand...
Click to collapse
Ok, i've just installed Ktoonsez kernel. I have changed to different governeors and i've yet to have seen any lag. Thats a great sign. Juste one question though, what combo of governor + scheduler gives the best battery life?

bump

I use ktoonservative and bfq, but there is no "best" What works best for someone else might not work well for you.
Testing is the only way to answer this for yourself.
Sent from my SGH-I747 using xda premium

[Q] Ridiclously slow!

Hi,
My GN was fine when I purchased it a month ago, brand new, but its so sluggish that its almost unusable. Phone dialer, Messaging and almost all apps load with a 3-5 second delay, even the keyboard opens after a few seconds.
I'm on stock 4.2.1 (deodexed) and even flashed fugumod kernel just today hoping it would fix things, I even factory reset it but no joy.
Could it be a hardware issue? is there any way I could run some quick tests to see whats wrong?

A similar thing happened to me when I decided to try a new kernel I've never used before, and it did not agree with my phone. Try a different kernel like lean kernel or Franco kernel and see if it still happens. If so, go back to stock.
Sent from my Galaxy Nexus using Tapatalk 2

I was on stock, then tried FuguMod, but it still lags, not as much as before but pretty slow.

Do you have lag spikes? Like many little freezes?

calinoii said:
Do you have lag spikes? Like many little freezes?
Click to expand...
Click to collapse
Exactly, many little freezes

I have thr same problem...from like 30 to 30 seconds I have those many little freezes...i tried many roms/kernels but no succes,even flashed the stock images and it's the same...I think something is messing our CPU cuz i had this issue even on stock rom/krrnel

check out this thread: http://forum.xda-developers.com/showthread.php?t=2029246

semihbalcioglu said:
check out this thread: http://forum.xda-developers.com/showthread.php?t=2029246
Click to expand...
Click to collapse
Not for me...

What are your kernel settings?

why dont you flash to 100% stock and see if the problems still persist?

Franco's kernel always good. I gave my gf my gnex never had a problem with sluggish she loves it.try going back to stock and redo everything start fresh and see if it still persisting
sent from my beastly powered DNA using Tapatalk 2

I personaly did flash a complete stock image of 4.2.1,worked well for a day and after that the issue reappeared...using franco and lean...both have the same probl like the stock one...the only one that works kind of OK is faux's...

calinoii said:
I personaly did flash a complete stock image of 4.2.1,worked well for a day and after that the issue reappeared...using franco and lean...both have the same probl like the stock one...the only one that works kind of OK is faux's...
Click to expand...
Click to collapse
I'll ask again. What are your kernel settings?

063_XOBX said:
I'll ask again. What are your kernel settings?
Click to expand...
Click to collapse
Just stock...should i change anything on the gov settings? Or the voltages? It seems that my device won't support some kernels. If you could tell me something to change for making it better,that would be great.

Have you used up almost of your memory in the sd card? I don't know if GN's are affected by eMMC bug brick. I've asked this before but they said GN is not affected. It has something to do with a bad chip.
Here's the link
http://code.google.com/p/android/issues/detail?id=39154
Sent from my Galaxy Nexus using xda app-developers app

I don't have that chip type

SOD on Galaxy Nexus JOP40D

Hi All. I've been getting random screen of deaths on my gnex on 4.2.1.
On xylon, aokp mr1 build 1, cm10.1 m1, even on stock JPO40D. I'm having a hair pull moment here.
And it happens at odd moments too.. while browsing, using maps, pulling down notifications, playing bubble blast, watching dailymotion, etc..
Even on different kernels.. stock, anarky, franco, lean...
Is this happening to anyone else?
Can anyone shed some light my way?
Edit: sorry for posting in the wrong section. overlooked that we had a Q&A
Sent from my maguro gnex using Tapatalk 2

4.2.1 is a hit or miss, for some ppl its great while others are having issues with it... if you are getting SODs on ALL kernels then i recommend you go back to 4.1.2 and wait for 4.2.2 to be released and hope that it fixes all the issues that 4.2.1 had
PS- question are supposed to posted in the Q&A section not in the general section

I am one of the miss guys. It happens to me when I run a kernel control app ie. Francos, trip trickster, and even built in and certain kernels. If I keep the stock kernel with no kernel controls I get no sods. Some kernels I can use as long as I don't use any of the control apps. It took me a month or so of installing and uninstalling apps, kernels and so on to narrow it down. But ya you are rite hopefully 4.2.2 will fix the GPS and sod problems
sent from a paranoid galaxy

Thread moved

one of the reasons why i went back to stock 4.1.2 with leankernel (slightly stock modified, not 1million tricks on it), and that i got a really good battery life.
i dont miss lot of features of 4.2.. so i can wait a fix on a future update without any impatience

I also am fine on 4.2 as long as I run either a stock or a stock cm kernel. I tried a couple of others and they both resulted in sods.

Do you have animations turned off? Known bug that the animator duration set to off causes sod.

klobkelosh said:
Do you have animations turned off? Known bug that the animator duration set to off causes sod.
Click to expand...
Click to collapse
Matter of fact, yes I did. I'll turn them on and give it a try. Just can't stand the screen off animation.
Sent from my Galaxy Nexus using Tapatalk 2

renzs said:
Matter of fact, yes I did. I'll turn them on and give it a try. Just can't stand the screen off animation.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I feel the same way

[ROM] *Unofficial* CM-11 [Dec-06-13]

Unofficial CM-11 for the Optimus G
Just some unofficial builds to hold everyone over until the official hits for our device. Used Chadouming's 4.4 repos for the build.
*NOTE*
You MUST be running a recovery from this site to install properly: http://ribs.bbqdroid.org/recoveries
First off, I built off of the work of others and would like to thank:
Code:
Team Codefire for [URL="http://forum.xda-developers.com/showthread.php?t=2007961"]unlocking the bootloader[/URL] and allowing roms at all
CM for their source
TeamPlaceHolder: xboxfanj, houstonn, chadouming
Anyone else I'm forgetting, let me know.
Please thank them, this ROM is only up because of them. Better yet, buy them a coffee!
Not Working:
Code:
Not Sure... let me know
Features:
Code:
Rooted
Built with Linaro/Sabermod toolchains
Built with Chadouming's 4.4 repos
Installation:
As you've read many times over on this site... I am not responsible..blah blah blah... flash at your own risk!
Code:
Like most other roms, boot into recovery and...
1. Factory Reset (Wipe Data/Cache)
2. Wipe System
3. Install Rom
4. Install Gapps
5. Reboot....
Downloads:
Code:
[URL="https://www.mediafire.com/folder/v0aa29gc0qop1/cm"]Rom[/URL]
[URL="http://www.androidfilehost.com/?a=show&w=files&flid=9199"]Gapps[/URL]
Enjoy! If you like my work press the Thanks, or buy me a coffee ​
My Github
CM Github

mine for something maybe

Awesome work downloading now Thanks
Sent from my Optimus G using xda premium
---------- Post added at 06:16 AM ---------- Previous post was at 05:30 AM ----------
My CPU won't go below 1050 and gpu is at 200 it says in performance settings % that I have been at 1050 most of the time
Sent from my Optimus G using xda premium

I am soft bricked after running antutu. I don't recommend running it.
[Edit] kdz'd back to jb and I'm good to go

Thumbs up on this ROM! I'll definitely be testing this out for the next couple of days.
Does anyone know Houstonn's screen setting in his RootBox ROM offhand? I like his color settings.
Sent from my Optimus G using Tapatalk 2

lunde20b said:
I am soft bricked after running antutu. I don't recommend running it.
[Edit] kdz'd back to jb and I'm good to go
Click to expand...
Click to collapse
Damn, sorry about that.... Thanks for the heads up though, I'll update the op with this info until its fixed.

@Haze028
This rom is amazing. I did get the green demigod kernel panic screen on first boot. I replaced the kernel with the boot.img from Houstonn's 4/2/2013 modded Rootbox, and ran it for about 6 hours without a kernel panic. I did the same thing with your AOKP, and have not seen one kernel panic in 4 days, and can run benchmarks just fine. I am back to running this set up for now due to the rotation issue in Liquid, but once this is fixed I will be back.
Also, I did want to report that Torch is not working on Liquid. This is after a fullwipe. I fixed this by swapping the Torch.apk from Rootbox in the zip and reflashing. I tried copying it to System/App while running the rom, but it would not install, it would just delete Torch all together. I had to add it to your zip before flashing for it to work.
Again, thank you for this amazing rom.

It looks so good,thanks.

arcardinal said:
@Haze028
This rom is amazing. I did get the green demigod kernel panic screen on first boot. I replaced the kernel with the boot.img from Houstonn's 4/2/2013 modded Rootbox, and ran it for about 6 hours without a kernel panic. I did the same thing with your AOKP, and have not seen one kernel panic in 4 days, and can run benchmarks just fine. I am back to running this set up for now due to the rotation issue in Liquid, but once this is fixed I will be back.
Also, I did want to report that Torch is not working on Liquid. This is after a fullwipe. I fixed this by swapping the Torch.apk from Rootbox in the zip and reflashing. I tried copying it to System/App while running the rom, but it would not install, it would just delete Torch all together. I had to add it to your zip before flashing for it to work.
Again, thank you for this amazing rom.
Click to expand...
Click to collapse
I haven't yet had a kernel panic, 11 hours in now. Though I had one case, about 3 hours ago, where the screen would not wake up and I had to power it down and reboot. It has been fine since then.
I can confirm the lack of torch, I'll add that to the OP as well untill I get it resolved. I'll try to work on some things tonight and see about getting another build out soon.
Thanks for the info though, I'll see what I can do.

Haze028 said:
I haven't yet had a kernel panic, 11 hours in now. Though I had one case, about 3 hours ago, where the screen would not wake up and I had to power it down and reboot. It has been fine since then.
I can confirm the lack of torch, I'll add that to the OP as well untill I get it resolved. I'll try to work on some things tonight and see about getting another build out soon.
Thanks for the info though, I'll see what I can do.
Click to expand...
Click to collapse
No, again thank you for the amazing rom and support. I was literally looking in the Nexus 4 section at all the ROMs. Specifically, Liquid, hoping someone would port it. I clicked back to the Canadian Development forum, and bam, there it was. Its like you read my mind.

Haze028 said:
I haven't yet had a kernel panic, 11 hours in now. Though I had one case, about 3 hours ago, where the screen would not wake up and I had to power it down and reboot. It has been fine since then.
I can confirm the lack of torch, I'll add that to the OP as well untill I get it resolved. I'll try to work on some things tonight and see about getting another build out soon.
Thanks for the info though, I'll see what I can do.
Click to expand...
Click to collapse
thank you for your support. This rom works well but I feel that the battery is not very good. Hope u can improve it in the next version. Thanks so much.

I installed this ROM before bed and went to sleep for 8 hours. It didn't seem to want to deep sleep...
Sent from my Optimus G using Tapatalk 2

No deep sleep for me either aslo doesnt go into landscape mode other than that smooth as can be
Sent from my Optimus G using xda app-developers app

galeonui9590 said:
thank you for your support. This rom works well but I feel that the battery is not very good. Hope u can improve it in the next version. Thanks so much.
Click to expand...
Click to collapse
What seems to be eating the battery, as far as battery screen shows, I know NFC defaults on which can kill off the battery quick. If you continue to run it, let me know how battery is once it settles in a bit more
arcardinal said:
No, again thank you for the amazing rom and support. I was literally looking in the Nexus 4 section at all the ROMs. Specifically, Liquid, hoping someone would port it. I clicked back to the Canadian Development forum, and bam, there it was. Its like you read my mind.
Click to expand...
Click to collapse
This was the rom I had initially wanted to build, but after many issues I went to aokp and had much better success. Now that I have slightly more experince building roms, emphasis on the slightly , I managed to get by the errors, though the results are not yet perfect.

mgebara said:
I installed this ROM before bed and went to sleep for 8 hours. It didn't seem to want to deep sleep...
Sent from my Optimus G using Tapatalk 2
Click to expand...
Click to collapse
Out of curriosity which govenor are you using? I switch to intellidemand and clock down to 1.5ghz max, just looked at my time in state and deep sleep is at 83%
Dsmforlife92 said:
[/COLOR]My CPU won't go below 1050 and gpu is at 200 it says in performance settings % that I have been at 1050 most of the time
Sent from my Optimus G using xda premium
Click to expand...
Click to collapse
I've noticed not being able to drop below 1050 as well, seems the same in aokp. I'll look into there being a config or something for the kernel to change this. same for the gpu overclock, i'll update when I find out more

Haze028 said:
Out of curriosity which govenor are you using? I switch to intellidemand and clock down to 1.5ghz max, just looked at my time in state and deep sleep is at 83%
Click to expand...
Click to collapse
I'll give that a try thanks Haze.
Sent from my Optimus G using Tapatalk 2

Awesome Rom, Thanks for the port!
I have one problem though, when I flip my phone in landscape, the image does flip too, but it becomes very small. It stays in portrait, but its rotated by 90 degrees. Any thoughts on that?

deadbeatcocoa said:
Awesome Rom, Thanks for the port!
I have one problem though, when I flip my phone in landscape, the image does flip too, but it becomes very small. It stays in portrait, but its rotated by 90 degrees. Any thoughts on that?
Click to expand...
Click to collapse
The rotation issue is a known issue - haze is working on it for the next builds
Sent from my LG-E973 using xda premium

Haze028 said:
What seems to be eating the battery, as far as battery screen shows, I know NFC defaults on which can kill off the battery quick. If you continue to run it, let me know how battery is once it settles in a bit more
This was the rom I had initially wanted to build, but after many issues I went to aokp and had much better success. Now that I have slightly more experince building roms, emphasis on the slightly , I managed to get by the errors, though the results are not yet perfect.
Click to expand...
Click to collapse
Well, as you know, I can't turn the NFC off. One more thing is that when I used wifi to connect to the Internet, every thing is ok, but when I use 3G+ to surf the Internet, I found that battery indicator reduced very quickly( quicker than normal even it declined 2-3% in a few times).
And in Performance, I set CPU at min: 384 and max:810 but when I checked, I saw that CPU still run at 1026(I already checked "set on boot"). I don't know if it it an error or not.

galeonui9590 said:
Well, as you know, I can't turn the NFC off. One more thing is that when I used wifi to connect to the Internet, every thing is ok, but when I use 3G+ to surf the Internet, I found that battery indicator reduced very quickly( quicker than normal even it declined 2-3% in a few times).
And in Performance, I set CPU at min: 384 and max:810 but when I checked, I saw that CPU still run at 1026(I already checked "set on boot"). I don't know if it it an error or not.
Click to expand...
Click to collapse
You should be able to turn off NFC, if it is sitting greyed out when you unchecked it reboot and try again... Works fine for me.
The frequency thing is known.... I've noticed however using fauxclock it stays down at 384 or whatever it is. Fauxclock is a paid app though so i cant include it. Ill look into an alternate app to use which works better and update when i find it
Edit: as for the internet, I haven't noticed yet...switched back to AOKP, testing the linaro tool chain build. Liquid still is full of issues..... Had trouble building, pretty much hack jobed it through as I didn't have too much time to play.