Hey guys, so every custom kernel I use the cpu is usually locked at the highest frequency. This makes the phone's battery life horrible and makes it very hot. Does anybody know why this occurs and how I can prevent it?
Thanks.
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Nasty_z said:
Hey guys, so every custom kernel I use the cpu is usually locked at the highest frequency. This makes the phone's battery life horrible and makes it very hot. Does anybody know why this occurs and how I can prevent it?
Thanks.
Sent from my Nexus 6P using Tapatalk
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Install a kernel tuning app and see what cpu governor is being used, sounds like your using the performance governor, which will ramp your cpu to max frequency. I've read that some custom roms are set to performance after flashing a custom kernel, this is possibly due to a ramdisk tweak.
If it's set to performance, change it back to interactive (stock) or whatever governor you like and enable the boot option.
hinxnz said:
Install a kernel tuning app and see what cpu governor is being used, sounds like your using the performance governor, which will ramp your cpu to max frequency. I've read that some custom roms are set to performance after flashing a custom kernel, this is possibly due to a ramdisk tweak.
If it's set to performance, change it back to interactive (stock) or whatever governor you like and enable the boot option.
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It doesn't automatically set to performance and I always change it to either interactive or ondemand anyway. Still keeps doing that
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Nasty_z said:
It doesn't automatically set to performance and I always change it to either interactive or ondemand anyway. Still keeps doing that
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Have you set any scripts or flashed anything else or have some app/service running in the background? Something must be putting load on your cpu.
As you probably know, you can only flash a custom kernel over the stock boot.img if using stock ROM or if using a custom rom, you can only flash over the boot.img that came with it. If you change kernels you need to flash the ROMs stock boot.img first otherwise something is bound to go wrong in the ramdisk but easily fixed by flashing your ROMs stock boot.img again.
hinxnz said:
Have you set any scripts or flashed anything else or have some app/service running in the background? Something must be putting load on your cpu.
As you probably know, you can only flash a custom kernel over the stock boot.img if using stock ROM or if using a custom rom, you can only flash over the boot.img that came with it. If you change kernels you need to flash the ROMs stock boot.img first otherwise something is bound to go wrong in the ramdisk but easily fixed by flashing your ROMs stock boot.img again.
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Appreciate your replies but I've already either done these things or have known about them and none of these have helped. I actually thought this was a common issue amongst Nexus 6P users. Anyway, app processes could be the culprit. Anything you can tell me that might help me identify the app causing the issue (if any)?
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Nasty_z said:
Appreciate your replies but I've already either done these things or have known about them and none of these have helped. I actually thought this was a common issue amongst Nexus 6P users. Anyway, app processes could be the culprit. Anything you can tell me that might help me identify the app causing the issue (if any)?
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It's not a common thing that I'm aware of and I'd imagine it's a user issue, try Better Battey Stats app, it has a process menu or another app possibly would be GSam Battery Monitor.
Related
Hi all,
I'm looking for a good kernel for my nex7. I'm running latest paranoidrom with stock kernel. Basically i want to OC and keep my tab smooth(and tweak it here and there). Battery is not that important to me. Any suggestions?
Sent from my Nexus 7 using xda app-developers app
try them all, they are all good. find the one that you and your device likes best since every device will react differently with every kernel. i prefer trinity kernel.
In my opinion for me personally, the kernel is the most important custom feature because everything I like jacking with is kernel related.
I like motley's kernels, trinity, and faux's kernels. I run Motley way more than any of the other ones, it's just a really nice and easy combination with really badass performance on my tablet. I try to run every experiemental kernel from trinity too just to keep myself in the loop.
To start with I recommend Motley's 1.11. and try builds 218 and 219 which are the same kernels with different max GPU speeds.
Simms is a kernel expert, he gives out a ton of good advice in the kernel threads.
Thanks for the advice. The reason why im asking this is because on my gnex I started my kerneladventures with franco, and this messed up my ramdisk causing me to reflash my phone. I just want to make sure that it doesnt happen again on my nex7. On the galaxy i run faux kernel, i didnt know it existed for the nex7?
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Motley's anykernel installation method makes it real easy to avoid conflicts by not overwriting the rom's ramdisc and things like that, I would strongly advise getting your feet with with his kernel.
Also, make sure you're following the original development section, faux's kernel is in there along with the others.
tobitronics said:
Thanks for the advice. The reason why im asking this is because on my gnex I started my kerneladventures with franco, and this messed up my ramdisk causing me to reflash my phone. I just want to make sure that it doesnt happen again on my nex7. On the galaxy i run faux kernel, i didnt know it existed for the nex7?
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thats because francisco was defaulting to fsync off and barrier=0 for some time. thats a tricky combination that could cause problems if you ever crashed. he doesnt do that anymore. fsync off is much safer when barrier=1
Any good kernel suggestions for 4.2? I tried m kernel and faux but both dont seem to fit in alk the way...
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tobitronics said:
Any good kernel suggestions for 4.2? I tried m kernel and faux but both dont seem to fit in alk the way...
Sent from my Nexus 7 using xda app-developers app
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trinity kernel
My nexus 7 is rebooting after a while using trinity kernel. I'm in stock 4.2.1 and I had random reboots even when no it applying any kind of OC just the kernel's default settings! What can I do to prevent that from happening?
Flash a different kernel.
Not all tablets are created equal. Whereas one will play nice with a particular kernel, the very next one off the assembly line may not.
najaboy said:
Flash a different kernel.
Not all tablets are created equal. Whereas one will play nice with a particular kernel, the very next one off the assembly line may not.
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I flashed motley kernel without any oc and I still get random reboots. Should I go back to stock kernel?
jeff.murillo said:
I flashed motley kernel without any oc and I still get random reboots. Should I go back to stock kernel?
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i bet its an app causing it.
Don't know why I initially glanced over you being on 4.2.1. Random reboots are actually a known issue with 4.2.x due to a problem at the OS level. Essentially, anything that uses geolocation can inadvertently trigger a reboot. Apps such as HD Widgets have updated to use a workaround until Google themselves fixes the issue. In the meantime, the only certain way to avoid the reboots is to turn off location services or downgrade to 4.1.2.
Unfortunately, this bug isn't consistently reproducible, but it does affect the entire Nexus line of devices using 4.2 and 4.2.1.
najaboy said:
Don't know why I initially glanced over you being on 4.2.1. Random reboots are actually a known issue with 4.2.x due to a problem at the OS level. Essentially, anything that uses geolocation can inadvertently trigger a reboot. Apps such as HD Widgets have updated to use a workaround until Google themselves fixes the issue. In the meantime, the only certain way to avoid the reboots is to turn off location services or downgrade to 4.1.2.
Unfortunately, this bug isn't consistently reproducible, but it does affect the entire Nexus line of devices using 4.2 and 4.2.1.
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Thanks buddy, with motley kernel I've just had 1 reboot. I'm going to test turning location services off and see what happens. BTW any idea how to oc the GPU in motley kernel? in trickster mod there's no option for it.
jeff.murillo said:
Thanks buddy, with motley kernel I've just had 1 reboot. I'm going to test turning location services off and see what happens. BTW any idea how to oc the GPU in motley kernel? in trickster mod there's no option for it.
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is ocing the gpu enabled in motley kernel? it has to be a feature of the kernel to be able to do it, an app cant do it if the kernel doesnt include the mod.
simms22 said:
is ocing the gpu enabled in motley kernel? it has to be a feature of the kernel to be able to do it, an app cant do it if the kernel doesnt include the mod.
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According to the kernels features, it supports GPU oc
jeff.murillo said:
According to the kernels features, it supports GPU oc
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the kernel might use a different method than the one the app "knows". for an example, cm color control with trinity kernel on the gnex. both cm and trinity have color control enabled, but since cm uses a different method of color control, you cant use the native cm rom color control option with trinity kernel, nor can you use the trinity kernel toolbox to control color on a cm rom/kernel. as they say, theres more than one way to skin a cat.
simms22 said:
the kernel might use a different method than the one the app "knows". for an example, cm color control with trinity kernel on the gnex. both cm and trinity have color control enabled, but since cm uses a different method of color control, you cant use the native cm rom color control option with trinity kernel, nor can you use the trinity kernel toolbox to control color on a cm rom/kernel. as they say, theres more than one way to skin a cat.
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That's what I thought, any idea how to do it in motley kernel?
jeff.murillo said:
That's what I thought, any idea how to do it in motley kernel?
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honestly i dont, id assume that motley used francos method since thats the most popular way. you should probably ask in the motley thread. but for some reason, i dont think it does, not the 4.2.1 kernel at least. maybe he just didnt update his op to reflext this. ask in the thread anyways
Hello i sperimented everything on my g3 to get max performance and battery life, these are the guide to get max smoothness for g3.
First i use an aosp rom 5.1, then flash 777 kernel and download kernel adiutor and open it, and go to cpu settings and set cpu governor smartmax,then these parameters, then go gpu settings and set others parameters, if you got green screen dont edit cpu boost interval sync threshold.Enjoy best performance and battery life for g3.
update.tdt removed because caused bootloop for some, just tweak the smartmax governor and gpu gov
Could you experiment how to get smoothness and better battery on cloudy rom? [emoji4]
What sort of battery life are you getting? And could you please provide a bit more information on how this improves performance over standard CM/AOSP and stock ROMs? Thanks for your effort!
Marcovanbasten said:
Could you experiment how to get smoothness and better battery on cloudy rom? [emoji4]
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just flash a custom kernel like chupa chups or rin and see if it has smartmax governor then you can follow the guide
onetik said:
What sort of battery life are you getting? And could you please provide a bit more information on how this improves performance over standard CM/AOSP and stock ROMs? Thanks for your effort!
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5 hours sot on 5.1 on wifi, it improves performance a lot,liquid smooth ui iphone like
I got a bootloop flashing your TDT tweak zip
How can I solve it without wiping data? Installing the rom over again has no effect, and wiping cache/Dalvik neither. I'm running multirom and I just booted in my other rom (stock based).
Same here... Got bootloops with TDT. I had to reflash everything
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the same here, bootloop
mudinhu said:
the same here, bootloop
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onetik said:
Same here... Got bootloops with TDT. I had to reflash everything
Sent from my LG-D855 using XDA Free mobile app
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juanmaasecas said:
I got a bootloop flashing your TDT tweak zip
How can I solve it without wiping data? Installing the rom over again has no effect, and wiping cache/Dalvik neither. I'm running multirom and I just booted in my other rom (stock based).
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for me was working, btw i have removed tdt script just tweak smartmax gov and gpu gov ify ou got green screen on editing cpu boost interval threshold(like me in fusion rom) just dont edit it :good:
Yep i got the green screen as well on blisspop. I applied your other settings though. Will report on the improvements after a few hours of usage.
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DELETED!
nvm figured it out
Great writeup!
Hello guys,
since Google doesn't offer Android 6.0 for our Nexus 4 I flashed a current custom ROM (PureNexus) and a custom Kernel (Quanta V10) on mine.
Now I would like to undervolt it but before I start I still have some questions:
1. I want to make sure that I have a clear backup of the current status of the ROM, so that I can flash it back if something goes wrong when I set the settings on boot. The problem: I don't really know what app I am supossed to use.
2. Is it possible to deactivate some cores of the CPU?
3. Can I also undervolt the GPU?
4. Is there a better stability benchmark than Antutu?
I hope some of you can help me. Thanks!
matraca1 said:
Hello guys,
since Google doesn't offer Android 6.0 for our Nexus 4 I flashed a current custom ROM (PureNexus) and a custom Kernel (Quanta V10) on mine.
Now I would like to undervolt it but before I start I still have some questions:
1. I want to make sure that I have a clear backup of the current status of the ROM, so that I can flash it back if something goes wrong when I set the settings on boot. The problem: I don't really know what app I am supossed to use.
2. Is it possible to deactivate some cores of the CPU?
3. Can I also undervolt the GPU?
4. Is there a better stability benchmark than Antutu?
I hope some of you can help me. Thanks!
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Click to collapse
1) The best way to make a full, complete backup is through nandroid. A nandroid will restore your phone exactly like it was if something goes wrong. Do this through your custom recovery.
2)On some kernels, yes it is possible. This setting would be found under the CPU hotplug settings in your Kernel manager if the kernel supports it.
3) To the best of my knowledge, Undervolting the GPU is not possible on the nexus 4.
4)I believe Antutu is the best one out there.
Just for your information, if you are undervolting for battery, you should know that it has been shown that you will be saving a negligent amount, and can greatly increase the risks of instability. If you are doing it for heat reduction, than I understand, but still please take it slow and be careful.
Hi just want to know which rom is fast and have a good battery life and closest to stock with stock kernel also what do you recommend me?
Depends on the S5 model. There are over 40 variants.
For G900F?[emoji14]
Sent from my SM-G900F using XDA-Developers Legacy app
balangmusic said:
For G900F?[emoji14]
Sent from my SM-G900F using XDA-Developers Legacy app
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Flash stock rom, root, flash custom recovery, remove bloats using titanium backup,flash custom kernel beofella done best stock rom for me lol...
Phoenix rom i guess
I second that. Stock Marshmallow is excellent once you remove the bloatware.
If you want to make it even better I recommend Boeffla Kernel (boeffla.de) – ATTENTION IT IS JUST FOR G900F! It has a very easy to use configuration app and ready-made profiles for battery saving, undervolting etc. Just remember to take it easy when undervolting, start small with -25mV, run the Stability Test app a few minutes, see how it goes. Usually -25mV should be more than enough. In fact I'm using one of the Boeffla profiles that does exactly that, -25mV on the voltage and limit the frequency to 1.7GHz and I was getting 0.2% battery/hour in idle. (On a fresh install without any apps yet, granted, lol.)
based on stock mm, great bat life, imo try SUPERLite MiNi MM *361mb*