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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
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
Sadly, I do not have enough posts to my name to reply to the thread in the Development forum, so I thought I'd post this here. I'm using Drew's JB747 M7, and it's very close to perfect for my needs. I had a couple issues that I ran into, and I've fixed them, so I wanted to share.
1) I ran into the issue with the Call Log prepending + to all incoming calls. This, of course, makes it impossible to return a call by tapping it in the Log. The TMO RIL files mentioned in post #3951 in that thread did, in fact, fix the issue for me.
2) Even after updating the RIL files, I found that I could not use Google Voice for my voicemail. I know that it's not possible to use Voice's built-in setup wizard to configure itself as the VM service in TW ROMs, and I know that I cannot get VMs to display in Call Log with TW either, but the issue I had was that my forwarding did not work. If I rejected a call, it went to dead air. It did not hang up, and it did not go to my GV greeting. After some tinkering, I found that resetting my forwarding numbers to the default (using the MMI ##004# in Dialer) did work with call rejections (sending to my AT&T VM, of course). After doing this, I tried the *004*[GV NUMBER]# MMI, and tested the call reject again. This time it forwarded to GV as expected. I know this is mentioned as a possible fix in other threads, but I wanted to state that it worked for me, so it's worth a try if you already have GV as your VM service on whatever ROM you're flashing from.
3) SOD - after freezing some Samsung bloatware, I rebooted. I'm using the stock kernel DG includes in the ROM. A couple hours later, I experienced my first SOD. The soft buttons were illuminated, and the only thing I could do to fix was pull the battery. This was with the suggested settings in No-Frills from the M7QuickFix set, and supposed to apply on Reboot. Looking at the CPU speed stats in No-Frills after the SOD, I noticed a whole lot of time spent at 384MHz, despite 486MHz being set as my minimum. It seems like perhaps No-Frills settings are not, in fact, re-applying after reboot. I'm still tinkering with No-Frills to see if I can replicate.
I may flash Ktoonsez's kernel so I can get KTweaker instead, but wanted to at least mention that it looks like double-checking CPU speeds after a reboot might be a good idea.
Hope this helps someone out there. And a big THANKS to Drew for his great ROM. Donation heading your way shortly, and I can't wait to see 1.0. :good:
Flash ktoonsez kernel it fixes the sod with out needing to set min to 486
jefferson9 said:
Flash ktoonsez kernel it fixes the sod with out needing to set min to 486
Click to expand...
Click to collapse
Thanks!
Just flashed ktoonsez's 10/31 kernel, which was posted moments after I'd finished flashing 10/28 . I ran KT's kernels on all of the AOKP and CM JB ROMs I've run, plus a handful of TW ICS ROMs. Love KT's work, but wanted to try out the stock kernel in JB747. I was getting fantastic battery life with the stock kernel, so I'm hopeful KT's gives me some good life, too.
Flash grafixxnyc port and u won't have any issues.
As for your Google Voice issues i never had issues. It would say it didn't work when setting up but always did.
I was a fan of Drew's ROMs but the high Android b system drain was b worrying me. After 6 builds it was always high.
Been running this port and couldn't be happier. Try it you won't be sorry.
Sent from my SGH-I747 using xda premium
bbgt2 said:
Flash grafixxnyc port and u won't have any issues.
Click to expand...
Click to collapse
Thanks for the suggestion. I actually have tried grafixxnyc's Stock Sprint port and prefer DG's ROM. Too much Sprint stuff in grafixxnyc's port.
I have not, however, tried BlackJelly if that's the one you mean. Was considering trying it this weekend, though I'm hoping Drew will have JB747 1.0 out by then.
At this point, JB747 M7 with KT's kernel is working quite well for me, after the RIL fix at least. Going to keep this as my go-to nandroid for a while I think. :good:
Thanks for the tips. Im currently using m4.1 sprint leak as my daily driver. Works great, I get over 30hrs of life with light use. About 18-20 w mod use.
Galaxy S3
jbl16 said:
Thanks for the tips. Im currently using m4.1 sprint leak as my daily driver. Works great, I get over 30hrs of life with light use. About 18-20 w mod use.
Click to expand...
Click to collapse
Yeah, I was getting great battery life with DG's stock kernel. KT's kernel eliminates the SOD for me (so far...it's only been 36 hours), but the battery life is slightly inferior. Using ktoonservative and SIO. Stock voltages, so I may need to play with that.
Which specific ROM are you using? Got a link?
Well all things were fine on 4.2.1 and then this update comes,
This is what i noticed so far,
1.Phone is EXTREMELY laggy when downloading from play store
2.Browser quick controls are bugged
3.Lots of launcher crashes
4.Alarm icon in the notification disappears while it's still active
5.Random lag spikes while navigating in de drawer or homescreen,
As far as i go, this is the laggiest jelly bean version, maybe google just got lazy, or they're working on another version of Android (fingers crossed)
EDIT: I'm not talking about custom roms and such, and i'm not willing to flash, i like stock
Sent from my GNexus
First:
Do a full wipe!
Flash STOCK ANDROID JB 4.2.2 (I mean stock, and not CWM flashable stock ROMs with root..)
Use stock Android launcher (Just stock, not modded or anything else)
And then Stop complaining!
I'm on cm10.1 4.2.2 and is probably the smoothest ROM I have ever been on.
Sent from my Galaxy Nexus using xda app-developers app
Even I'm using panaroid but i din feel any laggish or bug. May b its a problem which have been created without new boot loader from Google ?
Sent from my Galaxy Nexus using Tapatalk 2
ray3andrei said:
Well all things were fine on 4.2.1 and then this update comes,
This is what i noticed so far,
1.Phone is EXTREMELY laggy when downloading from play store
2.Browser quick controls are bugged
3.Lots of launcher crashes
4.Alarm icon in the notification disappears while it's still active
5.Random lag spikes while navigating in de drawer or homescreen,
As far as i go, this is the laggiest jelly bean version, maybe google just got lazy, or they're working on another version of Android (fingers crossed)
Sent from my GNexus
Click to expand...
Click to collapse
1. Use a custom kernel and tweak the read ahead buffer size. With sio io scheduler and 256k buffer size i made the lag minimal for me.
3+5 : use nova launcher and it will be fine
4: it works fine here, make sure you do clean installs.
As a last advice I must say to flash the factory image via fastboot. It is absolutely fine with no issues. I installed it on 2 gnex' already and no problems with lag.
Sent from my Nexus Prime
manumanfred said:
First:
Do a full wipe!
Flash STOCK ANDROID JB 4.2.2 (I mean stock, and not CWM flashable stock ROMs with root..)
Use stock Android launcher (Just stock, not modded or anything else)
And then Stop complaining!
Click to expand...
Click to collapse
Stock android is far away from perfect now. JDQ39 is nowhere near rock stable JZO54K. My friend. Scrolling lag is not the matter of clean installation. I've tested five 4.2.2 based roms, including stock all of them lags as hell after a while - it can be one or two days or couple of hours. Actually it's been the most evident of stock and it concerns scrolling between homescreens, lockscreens, recents. A lot of people have experienced it and it's been already reported to google issue tracker. I've already tested stock, cm10.1 m2, PA 3.1 0309, XenonHD 6.0 - all of them lags after a while. At the moment I am testing Purity and I haven's seen lag for two days.
Te easiest way to reproduce the bug. Please do not reboot your devices, and do not change wallpapers for about two days.
Same here, on CM10.1 Play Store is now smooth but was bad on XenonHD.
Sent from my Galaxy Nexus using xda app-developers app
I am 100% stock... My phone flies.. No lags nor bugs or redraws...
Sent from my Galaxy Nexus using xda app-developers app
sam razzy said:
Even I'm using panaroid but i din feel any laggish or bug. May b its a problem which have been created without new boot loader from Google ?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
No. Your problem is more than likely the former.
Sent from my Galaxy Nexus using xda app-developers app
forever_lol said:
Stock android is far away from perfect now. JDQ39 is nowhere near rock stable JZO54K. My friend. Scrolling lag is not the matter of clean installation. I've tested five 4.2.2 based roms, including stock all of them lags as hell after a while - it can be one or two days or couple of hours. Actually it's been the most evident of stock and it concerns scrolling between homescreens, lockscreens, recents. A lot of people have experienced it and it's been already reported to google issue tracker. I've already tested stock, cm10.1 m2, PA 3.1 0309, XenonHD 6.0 - all of them lags after a while. At the moment I am testing Purity and I haven's seen lag for two days.
Te easiest way to reproduce the bug. Please do not reboot your devices, and do not change wallpapers for about two days.
Click to expand...
Click to collapse
Well I don't understand where do you see the lags. Because I don't have any lags on my nexus.
The speed also depends what kernel you are using and how much free Memory you have on your nexus..
I'm using my own ROM which is based of stock Android ROM and I have actually never experienced any lags.
Yesterday I got few apps after using apple's BT mouse and when I set up multi users.. But all the lags went away when I rebooted.
thegtfusion said:
As a last advice I must say to flash the factory image via fastboot. It is absolutely fine with no issues. I installed it on 2 gnex' already and no problems with lag.
Sent from my Nexus Prime
Click to expand...
Click to collapse
How do I do this?
Not sure if this has been discussed or not I searched and found many bugs but none that meet this specific issue.. I noticed that since I updated to the 4.2.2 leak on my Toro Nexus there have been a few issues:
Audio from the pogo pin dock stopped working.
Car mode goes off and on randomly as well as the charging bolt when the phone should be charging.
Phone goes into daydream mode even when not being charged..
Turning on bluetooth randomly reboots the phone on occasion and other random bugs.
I think I'm going to flash back to the previous OTA. I'm stock unlocked, unrooted, just the way I like my Nexus (for now). In no way is this a complaint, more my observations and a last shot in the dark to see if anyone has overcome these issues in the latest leaked "OTA."
On a side note, other than the dock and power issues, everything has been smooth. No lag etc...
fireknuckles said:
... I think I'm going to flash back to the previous OTA....
Click to expand...
Click to collapse
Ok so I realize I don't know how to do this without resetting all data. From what I've read, the only way back includes wiping all data. Am I wrong? Is there a way for me to go back without wiping? I'm not super versed in all things Android but I think I recall flashing back to a previous OTA in the past to get another OTA to work without wiping. I can't find that thread anywhere so I'm probably mistaken. Any help?
Edit: I re-read http://forum.xda-developers.com/showthread.php?t=1626895 and determined that it can be done without wiping for folks that aren't noobs. I consider myself a noob at this point so I'm stuck with this 4.2.2 update until I find an easier way.
fireknuckles said:
Ok so I realize I don't know how to do this without resetting all data. From what I've read, the only way back includes wiping all data. Am I wrong? Is there a way for me to go back without wiping? I'm not super versed in all things Android but I think I recall flashing back to a previous OTA in the past to get another OTA to work without wiping. I can't find that thread anywhere so I'm probably mistaken. Any help?
Edit: I re-read http://forum.xda-developers.com/showthread.php?t=1626895 and determined that it can be done without wiping for folks that aren't noobs. I consider myself a noob at this point so I'm stuck with this 4.2.2 update until I find an easier way.
Click to expand...
Click to collapse
It's the same as flashing a rom! Use Titanium backup to backup the apps, and custom recovery to wipe data/factory reset, cache and dalvik cache. Format /system, /data, /cache , and downgrade with the toolkit w/o format when it ask. So for less than an hour you will downgrade, and keep music, videos and photos. So the only thing you lose is programs, but you can restore them whit titanium, and that is!
manumanfred said:
Well I don't understand where do you see the lags. Because I don't have any lags on my nexus.
The speed also depends what kernel you are using and how much free Memory you have on your nexus..
I'm using my own ROM which is based of stock Android ROM and I have actually never experienced any lags.
Yesterday I got few apps after using apple's BT mouse and when I set up multi users.. But all the lags went away when I rebooted.
Click to expand...
Click to collapse
Lags what I am talking about is low fps scrolling that appears after some time of normal usage. I've never experienced it on 4.1.2 or 4.2.1. It has nothing to do with the kernel. (BTW aren't we talkin about the stock one?) Problem is still present on custom kernels and even OCed CPU. It looks rather like some sort of memory leak. Reboot or changing wallpaper is a workaround solution for this issue. So yeah if you reboot your device quite often you most probably won't see this bug.
If you want to read more about this issue visit this thread:
http://forum.xda-developers.com/showthread.php?t=2178962
Except this bug I really like the 4.2.2 rom, these new features. I consider it as an improvement from 4.2.1.
I agree, 4.1.2 was polished more. 4.2.2 is better then the initial 4.2 release, but still has a way to go. We'll see what IO brings soon.
wisefreakz said:
I am 100% stock... My phone flies.. No lags nor bugs or redraws...
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
+1
Sent from my Galaxy Nexus using xda app-developers app
manumanfred said:
First:
Do a full wipe!
Flash STOCK ANDROID JB 4.2.2 (I mean stock, and not CWM flashable stock ROMs with root..)
Use stock Android launcher (Just stock, not modded or anything else)
And then Stop complaining!
Click to expand...
Click to collapse
Yeah i did that 2 weeks ago, and it just got laggy again
Sent from my GNexus
ray3andrei said:
Yeah i did that 2 weeks ago, and it just got laggy again
Sent from my GNexus
Click to expand...
Click to collapse
Ok.. Hmmm.....
Are you using custom kernel?
And which apps are running in background? E.g. Currents, Google+. FB...
And if you use custom kernel then make sure you use CPU governor that doesn't make Android slower or laggier..
I have actually never had any lags on my Nexus, I use 100% stock kernel, sometimes CM's kernel. I have free memory 2,10 GB of 13 GB (16GB GNex)..
Also I recommend to use some cleaner apps to delete unnecessary files..
For cleaning a bit my Nexus I use "Mobile Care" on Windows it is "ASC"
Which deletes e.g. Cache and junk files..
manumanfred said:
Ok.. Hmmm.....
Are you using custom kernel?
And which apps are running in background? E.g. Currents, Google+. FB...
And if you use custom kernel then make sure you use CPU governor that doesn't make Android slower or laggier..
I have actually never had any lags on my Nexus, I use 100% stock kernel, sometimes CM's kernel. I have free memory 2,10 GB of 13 GB (16GB GNex)..
Also I recommend to use some cleaner apps to delete unnecessary files..
For cleaning a bit my Nexus I use "Mobile Care" on Windows it is "ASC"
Which deletes e.g. Cache and junk files..
Click to expand...
Click to collapse
Like i said, i'm 100% stock, and i see a lot of people having these issues as well..
Sent from my GNexus
Wel, I was having pretty good battery life with the L710's stock MA6 ROM with KT747's kernel but I decided to flash a new ROM.
Here is what battery life looks like and I'm worried that its not the ROM but a problem with my battery, since people have been reporting exceptional battery life with this ROM.
Some specs.
ROM: LIQUID-JB-2.1-STABLE
Kernel: KT747-Kernel-AOSP-JB-MR1-SPR-03-14-2013
Governor: ondemand
Scheduler: cfq
Click to expand...
Click to collapse
Attached is the battery screenshot.
It won't even charge when connected with light use. Thoughts?
Before anyone asks this is my third time installing the ROM and I'm pretty sure I don't have the Google services wake lock.
dan_h1n474 said:
Before anyone asks this is my third time installing the ROM and I'm pretty sure I don't have the Google services wake lock.
Click to expand...
Click to collapse
O the three times u installed did u do a full wipe (wipe data factory reset ) also are you over clocked and did u restore old kernal settings.
livis n fur said:
O the three times u installed did u do a full wipe (wipe data factory reset ) also are you over clocked and did u restore old kernal settings.
Click to expand...
Click to collapse
I try to never dirty flash and usually just restore apps from TitaniumBackup. All three times were full wipes formatting any partition I could other than extSdcard. No old kernel settings were restored and I'm not over or undeclocked but I did under volt by 50 and the phone seems stable but no improvement.
As a matter of fact during the latter of the installs I restored nothing. I've also disconnected my sdCard in hopes that it was a bad card (some hopes) but to no avail.
I am redownloading the rooms even do the md5 sum was the exact and downloading the gapp from a different source.
Sent from my SPH-L710 using xda app-developers app
Try running LiquidSmooth's stock kernel. I'm getting pretty good battery life with that. KT747 may not agree with your phone combined with this rom. I had good results when I ran KT with a TW rom, but not so much with AOSP. Every phone can behave differently.
Good luck.
Sent from my SPH-L710 using Tapatalk 2
kjjm said:
Try running LiquidSmooth's stock kernel. I'm getting pretty good battery life with that. KT747 may not agree with your phone combined with this rom. I had good results when I ran KT with a TW rom, but not so much with AOSP. Every phone can behave differently.
Good luck.
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
I ran my phone with the kernel that LiquidSmooth has as stock, and it was extremely buggy for me, maybe it just did not behave well with my phone but it looks like the kernel has a few known issues as is. One bug I had is that audio playback was extremely erratic, and I haven't come across a commenter stating anything similar. I'd really hate migrating from LiquidSmooth, especially with the notion that I just "gave up", and not on just any release but on a stable release.
Update:
Update:
On this new install from a new download and gapps from a different source, I do not seem to be having the audio issue, which seems strange as both prior downloads had an exact md5 sum.
*Currently hopeful with fingers crossed*
I'm really enjoying LiquidSmooth, too, so I know what you mean. I hope it works for you this time.
Sent from my SPH-L710 using Tapatalk 2