I just downloaded and installed a custom kernel so that it will work with Dolby Atmos. Right now I want to underclock the CPU slightly so that it consumes less power especially since I rarely play demanding games (I still want everything to be fluid smooth though). I hear that I will need a custom kernel for modification like this and I wonder how to do it because I currently have one custom kernel installed. Is it OK or possible for a phone to have several kernels? If not, how do we know if one kernel will work for both Dolby and underclocking feature?
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Hello all!
I'm a newbie who wants to know some more about ROMs and Kernels.
Here's the thing:
I have the awesome galaxy s2 and I definately want to flash Lite'ning ROM 1.5.
I also read about an easy overclock kernel here (using SetCPU app):
http://forum.xda-developers.com/showthread.php?t=1075061
1. Now, what I do not yet understand is: if I flash the necessary OC kernel, will this interfere with the Lite'ning ROM (which has the KF2 kernel)?
2. If so, is there another way to do an easy overclock on the Lite'ning ROM?
I'm looking for CPU speeds of about 1.4 to 1.5 Ghz, just to get that little bit of extra performance.
I also looked at the Tegrak OC, but I don't think I know enough to mess with the voltages... Or how to even do that
3. So, how do ROMs and Kernels work (in short)? Can I flash any Kernel on any ROM?
4. And can you install multiple Kernels working next to eachother? Or will some Kernels interfere with eachother?
I searched the forums for good explanations, but thusfar haven't found any.
Sorry for being a noob! I'm really trying to read up, but it's more difficult than I had expected.
Some Noob-Proof explanation would be much appreciated!
Numbered the questions I have at the moment
Thank you!
I cant answer all your questions but i'll do my best
2) have a look at tekrak overclock and this guide
http://forum.xda-developers.com/showpost.php?p=14973796&postcount=531 the first part is about undervolting which is great and the last section is about what voltage to overclock your galaxy s2 at
Basically, the voltage is how much energy your battery puts through the system, including gpu and cpu, so if you overclock you need more energy and dont worry about crashing, it just reboots and asks you if you want the previous settings and you say no (write down your previous settings though) and then lower the voltage and try again and so on
3) roms are basically modified versions of android and kernels can be flashed on most roms, im not sure about the official ones
Thats all i know about so i hope it helped you
PM me if you want some help with undervolting or overclocking, i dont tend to overclock as i dont see the point, my phones already so fast
Thank you!
That Naphtaline guide about voltages seems really helpful
I do need the Tegrak Ultimate app to set all the voltages right?
The free one doesn't seem to include that.
I'll have a look into it anyway.
And I recall that I do not need to flash another kernel if I use this Tegrak OC right?
Almost sure I read that somewhere in the Lite'ning ROM thread.
Appreciate the help!
I think the free one includes voltages just no settings for the gpu, but i could be wrong
Not sure about the Tegrak kernel, but no harm in it
No problem, just pm me if anything goes wrong or you have some questions
yeah that Naphtaline guide is just classy keep up the gud work guyz
Noobie question,
Can we use CPU adjusting applications without a custom kernal?
Not really, since it's the custom kernels that add the extra features that the app accesses and let's you pick and choose what you want to customize the kernel.
Yes you can if your phone is rooted use SetCPU from the market here https://play.google.com/store/apps/...wsMSwxLDEsImNvbS5taHVhbmcub3ZlcmNsb2NraW5nIl0.
or from here http://www.4shared.com/file/H6quF_2K/setcpu__2302_.html
custom kernels is betetr because all this should be tweaked in the rom but for stock as long as its deodexed then your good
I have to overclock speeds over my phone I want.
Is only able to custom rom?
uhmmmmm i no understand.....lol
but NO its not the Rom its the kernel that allows OC/UV
So if want OverClock, Kernel Flash on phone that support. must Root
( i tried to type that so you would understand it )
Good luck bruh.
indeed flash a custom kernel you have. (sounds a bit like Yoda..)
In short - if you need to ask, then you shouldn't be doing it. You need to read up otherwise you'll come back in the future, saying you've fried your phone.
Like the others said though, you need a custom kernel that supports overclocking.
I wouldn't bother, it's a fast enough phone without the need to overclock it.
Flash a kernel that you can overclock like for instance Siyah kernel. Don`t overdo it though, 1600 Mhz is more than enough to get good performance and keep good battery life. Read the dev`s thread before you overclock to gather info and xperiences from other users.
To me he sounds like he wants 2 clocks on his phone. You need to add dual clock widget
Hi,
Yes, like said above you need a custom kernel wich allow overclocking... but you also need an app for set your CPU freq as you want... if I remember right even with a custom kernel, the CPU freq is the stock CPU freq after flashing (I mean no kernel with directly a 1.6 Ghz CPU freq, it's to the user to set the CPU freq).
Francisco's kernel has its own application, gokhanmoral's kernel has Extweaks, simone201's kernel has also an app, etc...
Or you can use a "generic" app like SetCpu, System Tuner, CPU Master, No frills, etc, etc...
Before flashing a new kernel read, read and read the dev section and the different method of flash, the different kernel threads...
What does a kernel do when it comes to android phone performance? Is it wise to use stock kernel over custom ones (CM etc)?
shad0wboss said:
What does a kernel do when it comes to android phone performance? Is it wise to use stock kernel over custom ones (CM etc)?
Click to expand...
Click to collapse
The kernel is the most fundamental part of ur OS. It is mainly responsible for communicating with ur phone's hardware e.g processor, camera, etc. Stock kernels often tend to be stable however they do not offer overclocking abilities. Custom kernels on the other hand, allow for overclocking and have scripts to boost performance and even screen color. However, stock kernels often provide better battery life as compared to custom ones. Once u switch from a stock rom to a custom rom, u would most likely be using a custom kernel anyways. Hope that helps
i used lots of custom rom this week to get better performance in pubgm but it seems that custom rom is worst than miui when it comes to gaming.
after asking lots of threads i found out that extrem kernel is best when comes to performace.. i got ex kernel manager. (recently brought it)
after flashing miui custom rom (vendor 9.1.24) beta global one.. i m having touch latency isuue more than before.
can any one tell me which is good custom rom, kernel for gaming .. and give me a good kernel setup for ex kernel to use..
I tried the OxygenOS port (dont install another kernel with this)and it is really great for PUBG. But as of now no ROMs are as close to MIUI when it comes to performance of gaming. But Sphinx Kernel with Thermal Config app brings the performance to nearly 95% of what you get in MIUI. I am currently using crDroid with Sphinx Kernel and thermal config app and everything is smooth with no issues. If lag is an issue, just turn down the settings, its not gonna make a huge difference. And also I only noticed lag in PUBG in other ROMs. But other games like Asphalt 8 and 9 did not have any lag at all. Extreme Kernel has a lot of problems and is unstable imo but try it at your own risk.
arnabgharay said:
i used lots of custom rom this week to get better performance in pubgm but it seems that custom rom is worst than miui when it comes to gaming.
after asking lots of threads i found out that extrem kernel is best when comes to performace.. i got ex kernel manager. (recently brought it)
after flashing miui custom rom (vendor 9.1.24) beta global one.. i m having touch latency isuue more than before.
can any one tell me which is good custom rom, kernel for gaming .. and give me a good kernel setup for ex kernel to use..
Click to expand...
Click to collapse
Are you on miui custom rom or global beta? Which one?
Rowdyy Ronnie said:
Are you on miui custom rom or global beta? Which one?
Click to expand...
Click to collapse
ambasadi v1.4 with extreme kernel v8 60hz, i feel pubg lags more than what is does in the stock ,i don't know what i did wrong.. should i modify some stuff in ex kernel manager,i love when dev pre set a setup of there kernel ,u want battery use this ,want performance use this..
plz help me ,i don't mind battery drain but want a good stable performance in pubg and i wanma record my gameplay too
arnabgharay said:
ambasadi v1.4 with extreme kernel v8 60hz, i feel pubg lags more than what is does in the stock ,i don't know what i did wrong.. should i modify some stuff in ex kernel manager,i love when dev pre set a setup of there kernel ,u want battery use this ,want performance use this..
plz help me ,i don't mind battery drain but want a good stable performance in pubg and i wanma record my gameplay too
Click to expand...
Click to collapse
Go back to global beta 9.1.24 and debloat useless apps either by rooting or using ADB. Problem solved.