Hi,
Quick question I am still having trouble wrapping my head around the concept about kernels. I am planning to root my nexus 4 and flash a custom rom (purity rom) but am i required to also flash a custom kernel? Or am I suppose to leave the kernel as is?
Thanks!
Next123 said:
Hi,
Quick question I am still having trouble wrapping my head around the concept about kernels. I am planning to root my nexus 4 and flash a custom rom (purity rom) but am i required to also flash a custom kernel? Or am I suppose to leave the kernel as is?
Thanks!
Click to expand...
Click to collapse
Depends upon your requirement .
As an example i use Fast USB charge a lot and is not available in any custom rom .
I also use Headphone volume boost which is yet again a kernel level change.
I would suggest you to use a custom kernel since it also gives better battery than stock .
If you are happy without it then forget about kernels . And in case u plan on flashing one make a CWM backup just in case.,
You could if you want to since you're already flashing custom roms. However, most custom rom come with custom kernel, so when you flash a custom rom it will replace your kernel with it's own. You can manually flash back your stock kernel if you want, using fastboot, but there is a flashable package as well in the Dev section.
Just know that due to codes and drivers, different kernels work with different roms. If you flash a 4.3 kernel to a 4.4 rom, it might lack certain necessary driver, such as PRIMA, so your wifi will no longer work. (You can fix this by flashing dePRIMAtor). CyanogenMod use Code Aurora Forum drivers, so if you use a kernel that doesn't support CAF, the screen colors will be messed up (you can lash a colorfix package which replace it with the non-CAF liboverlay.so).
A lot of people get wrapped too far up into flashing kernel and thinking it determine everything (performance + battery life) in their phone. As much of a heavy flasher that I am, I am willing to bet that you generally get the best battery life and stability just running stock. I did my own trial for this, with stock rom and kernel, the phone staying cooler and screen on time was longer. This is just my personal experience, it varies for each person.
But I mainly use custom kernel for features. Such as kernels that incorporate Faux color and sound, this allows changing their settings for much a better screen color and making the speaker louder. I also use the sweep2wake/sleep feature to turn on and off the screen.
If you intend to use custom kernels, I recommend using TricksterMod, it's the best app for modifying kernel settings.
Also just to mention this ahead of time, it's against XDA rules to make threads about what is the best rom/kernels.
[Q&A] [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker
Q&A for [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:
Which one shouldI choose with this ROM?
Hi, I was wondering if I should choose the Kitkat 4.4.4 AOSP kernel or the GPE kernel with this rom:
http://forum.xda-developers.com/showthread.php?t=2557353
Thanks in advance for answering!
Anyone?!
Does anyone know this?
It doesn't matter anymore
It doesn't matter anymore, I found out which one. You need the Google play edition 4.4.4 and not the AOSP 4.4.4
In the end it was actually not that difficult, so I'm sorry for posting this "not that smart" question without reading a lot.
Random Reboot
Hi, i have installed this kernel using the setting in your script V6.
I have random reboot.
I use it on galxy s4 with google edition rom.
I hope you can help me, sorry for my english and i hope that what i have written is correct.
Thank you
Hi at all. I'm searching a post on XDA (I can't find it for now) where are explained all governor's parameters like block_cycles_offline_screen_on or boost_hold_cycles and ALL others.
Inviato dal mio GT-I9505G utilizzando Tapatalk
Hay. I'm using MultiROM since a few weeks. I used the Alucard Kernel until now because you need the Kexec Hardboot patch to use it. Would it be possible to add this Patch to the Kernel? I love your Kernel but I also love MultiROM. It would be great if we could combine both
Guys first time using the kernel, I loaded "Smooth Criminal"" profile, so far so good, anyways, my question is about the Fast charge, is it safe to draw 1900mA (that is what the lecture says) from a USB port?? my rig is a gaming one and another thing is that is set to Fast Charge = Enable, USB Port = 425mA and AC = 1600mA, I assume those Custom values are override because is set to ""Enable"" instead of ""Custom"", just wondering if its safe.. :/ How would I know.
need help regarding battery life
first of all thanks a lot for the kernel.im quite new to android and had a battery draining issue from the beginning and i changed my kernel in to this but no significant improvement of the battery life.other than that my phone is very smooth n no any other issue.im wondering why the battery drain so fast and its not last even a day with a full charge.screen on normally 2 hours per day.this is my first kernel installation and i did it accordingly other than fixing permission because there was no such option in the recover mode.it would be so nice if some one kindly guide me to resolve the problem because im sure there is something wrong in my device but not the kernel. these are some information about my device
model number gt-i9505
android 4.4.2
baseband version i9505xxufnc4
kernel 3.4.98 KT-SG_kk4.4 07.12.2014
i am using ktoonsified v6 profile in ktweaker and i have tried manual settings as well
i have attached a screen shot of my battery usage. display is on around 20mns
thanks in advance
Thank you for this kernel!
Hello,
Exactly the same problem for me, GSM and WiFi does not work with this kernel (KT-SGS4-KK4.4-AOSP-INTL-12.7.2014) on a "Snapshot CM11-M12 in Galaxy S4 Intl"
Sorry for my bad English
Hi all !
Hello guys.I have a I9505 for a month now and so far i've enjoyed playing with rooting/modding and so on.I've flashed CM11 at first but I replaced it with some modded Echoe Rom Touchwizz 4.4.2 ROM,Today I flashed this kernel and i'm so pleased with it.Lots of cutomizable options,OC capable and so on.My issue with my device it's that it gets hot very fast(after 10-15min of gaming) and after that it starts to throtlle .I've used like 3 different kernels so far including the stock one and the problem persists.With this one I managed to OC the cpu to 2106MHZ stable and the GPU to 545MHZ also stable.When I enter Asphalt8 for the first 5-7 minutes the performance it's just flawless compared to non-OC settings.The problem is after those couple of minutes it begins to throtlle as it does and I find myself running at 1.2GHZ or so CPU freq and 128MHZ GPU wich mages the game unplayable.I also set the throttle limit way upper to 85-90 degrees or so...still nothing seems to be stopping the throtlling on my device.If anyone has some tips or so please do help me.I really wanna enjoy this kernel xD ! :-bd
CM12 with this kernel -> experiences?
I just switched from stock Samsung 4.2.2 to AntaresOne's Unoffical CM12 rom on my S4 i9505.
I'm having the Miscellaneous battery drain issue (even though I still have better battery performance than with the stock Samsung rom), and have been thinking of installing this kernel.
However, on the xda forums a lot of ppl seem to be of the opinion that switching kernel will result only in minimal to unnoticeable improvement in terms of power consumption (taking into account just the kernel, not things as Greenifying, freezing and such which are kernel independent).
Can any of you give some feedback whether they have been getting noticeably better battery life with this kernel in similar circumstances (CM12, Miscellaneous drain) with ktoonservativeq or conservative governors?
Also, are there any other significant advantages to this kernel than power/cpu management over the AntaresOne CM12 kernel?
Hi
How I can find the S4 Touchwiz 4.4.4 Kernel Source?
Permission to use your kernel
I am requesting permission to include your kernel in a ROM that I am building.
Hi!
I've used the TwZ Kernel 4.4.2 on my 9505, Stock 4.4.2 ZTO (Brasil) rom, Rooted (of course) and have a issue:
When flashed and reboots, it stuck on "Samsung GT9505.." Logo. The sounds it makes is the same from a custom booting, but still stucked 4ver.
Flashed via CWM 6.0.4.7
I also Wiped Cache/Dalvik, but didnt Fix permissions (CWM 6.0.4.7 dont have this option anymore)
Please, if I've did something wrong or not.
Also, i've already have everything back to normal after flashing a Rom backup
Sorry for most worst english.
I need help, what rom work great with this version of kernel AOSP KITKAT 4.4 VERSION ?
ktoonsez awsome
ktoonsez, sweet kernel as always
only issue I've got is it doesn't work with the induction charging pads, I've got a genuine Samsung one.
I know this is fairly low on your radar and priorities list but if you could update this thread when you get to it, that would be great
Cheers
induction charge
I think i posted in the wrong thread before, your kernels are the bomb, im using the last 5.0 release on cm12 optimised release and its fast no random reboot. Very fast, and i know mr kstoonzes youre working on bigger things but when you get around to it please have a look at the induction charging, few reports saying its borked. Other 5.0 kernels fine. Keep up the awsomest work and happy xhristman
Kernel suport 5.0
Hey so I've been trying to flash a new kernel on my N910C to fix its' god awful battery life. However whatever kernel I flash results in an endless booting animation. I'm aware that the kernel needs to support GraceUX so what I'm asking here is is there any custom kernel that does which also supports synapse?
I'm on Dooola's rom btw, 6.0.1 Note 7 port
bump
Try the latest dooola rom v12. My battery seems working fine. With Greenify and start-up manager the battery is even staying longer
I am gonna unlock my bootloader and flash custom rom as i need to overclock the cpu and suggestions?My.main.reason for that is games.coz after 5 mins of gaming the game starts to lag but for starting 5 mins its smooth.
You can try some light and smooth ROMs like Invicta, AICP and use the ElemenentalX kernel. (LineageOS base)
https://forum.xda-developers.com/moto-g4-plus/development/kernel-elementalx-g4-0-01-t3424836
tywinlannister7 said:
You can try some light and smooth ROMs like Invicta, AICP and use the ElemenentalX kernel. (LineageOS base)
Click to expand...
Click to collapse
Invicta's desclaimer says no to elemenatal x,moreover any tips for overclocking?
Don't use custom roms, IMO all based on Lineage have issues. Use stock ROM, EX kernel (with a kernel manager), root with SuperSU beta, not the normal one, see the threads here.
Also, gaming will overheat any device, do you have a case on your phone? That impedes the heat transfer and overheats the CPU, kills the battery...
SoNic67 said:
Don't use custom roms, IMO all based on Lineage have issues. Usu stock ROM, EX kernel, root with SuperSU beta, not the normal one, see the threads here.
Also, gaming will overheat any device, do you have a case on your phone? That impedes the heat transfer and overheats the CPU, kills the battery...
Click to expand...
Click to collapse
Thanks,so i won't​ flash custom rom (i agree with u)i play with case removed,also another reason i am eager for ex kernal is.that i have image retention problem so i have to lower the rgb values too.i just do short gaming of 15-20 mins and i want that to be good.currently it starts disappointing me after 5 mins.Moreover my friends k6 power which has SD425 runs game more smoothly...thats a 9k phone while i have a 16k phone.
I started having retention after the Nougat update. Coincidence? Maybe. Putting the RGB values to 240 on all channels fixed it and is not visible any difference from 256.
I don't game, but setting the default minimum BigCPU number to one instead of two (busy down at 33% and busy up at 68%) helped my phone to be cold permanently. Interactive governor.
Hi guys
On stock rom pie version Android 3.31.401.1
Comparison between two kernels who I can install on the phone Htc u 11 show
In my opinion, the kernel ex is better because with the test I did, ex kernel frequency remains minimum on 300 , while it is at rival kernel at 960, and this has a great effect on battery consumption.
Of course, this is at rest and idling, and the second test at working pressure where the two kernels are no different.
what is your opinion?
Looks like I'm having trouble using this EX kernel. Sometimes mobile data crashes. Of course I have to check more
stock kernel >>>>> ex + clean
Checked . Ex kernel no problems. Issue has stock kernel
Is it possible to revert to stock kernel from cleanslate?