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Stock kernel vs custom kernel ?

Stock kernel vs custom kernel ?

mohnad12 said:
Stock kernel vs custom kernel ?
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what about it? what's your real question? stock is however stock is set up, custom kernels change the CPU setup, in many differing ways. there is no one correct answer as there are many different custom kernels and setups.

simms22 said:
what about it? what's your real question? stock is however stock is set up, custom kernels change the CPU setup, in many differing ways. there is no one correct answer as there are many different custom kernels and setups.
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I am running orignal android 6.0.1 its recommanded to install custom kernel ??

mohnad12 said:
I am running orignal android 6.0.1 its recommanded to install custom kernel ??
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if you have issues with the stock kernel, yes. if you want root, yes. should you learn how to set up your cpu properly before changing kernels? yes. learn about the governor/scheduler, how changing them changes your cpu performance. besides that, some kernels add a few minor features as well.

Rooted but as close to stock as possible. I've always had issues with heavily tweaked custom kernels.
They have their place, but not if you wan't a solid rooted daily driver IMHO.

DaanJordaan said:
Rooted but as close to stock as possible. I've always had issues with heavily tweaked custom kernels.
They have their place, but not if you wan't a solid rooted daily driver IMHO.
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im a well known custom kernel user, and yet I NEVER use any custom kernel as they are set up by the developer. I ALWAYS use my own CPU setups, always. as far as I can tell, my setup is as solid for me as any stock kernel that google provides. but not only solid, my phones performance is kicked up a notch as well as its battery life. and my devices turn out much more responsive too.

Wow you must be very skilled and talented!
Sometimes messing with stuff like that can create bootloops and random freezes.
I also love how you have contributed to this thread by saying how you ALWAYS use your own CPU setups.
It was very informational an helpful.
Thanks!

DaanJordaan said:
Wow you must be very skilled and talented!
Sometimes messing with stuff like that can create bootloops and random freezes.
I also love how you have contributed to this thread by saying how you ALWAYS use your own CPU setups.
It was very informational an helpful.
Thanks!
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and that's why its very important to know about governors and schedulers.
here's one of my examples.. for a long time, I was the only one using all 4 cores on , no hotplugging. and many people laughed at me about it, claiming my battery life must suck. but, for android 5.1 google changed the CPU settings for the nexus 6. and many people really noticed about how reactive the n6 became. what did google change? they set the cpu to be always on, no hotplugging :angel:
BTW, I use the ondemand governor with the deadline scheduler. with the sampling rate for ondemand set at 15000 and the sampling rate at 98.

mohnad12 said:
Stock kernel vs custom kernel ?
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Ribs barbecue.
---------- Post added at 10:22 AM ---------- Previous post was at 10:21 AM ----------
mohnad12 said:
I am running orignal android 6.0.1 its recommanded to install custom kernel ??
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No. Stock just works fine.

N6 here.

On Pure Nexus 2.3.16, xPosed, Elite Kernel 1.21.16. i have attached a LogCat for your viewing pleasure. random reboots, freezes. FYI, reboots happened before xPosed. What app/settings are the culprit if any? Thank you very much in advance!

Scottay5150 said:
On Pure Nexus 2.3.16, xPosed, Elite Kernel 1.21.16. i have attached a LogCat for your viewing pleasure. random reboots, freezes. What app/settings are the culprit if any? Thank you very much in advance!
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well, xposed isn't meant to be used on custom ROMs, as custom ROMs will probably need what xposed changes/uses. I'd recommend gettingvrid of it and reflashing the ROM. if your reboots still continue, then you know its not xposed.

simms22 said:
well, xposed isn't meant to be used on custom ROMs, as custom ROMs will probably need what xposed changes/uses. I'd recommend gettingvrid of it and reflashing the ROM. if your reboots still continue, then you know its not xposed.
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FYI, reboots happened before xPosed.

I've noticed straying too far from stock kernel can result in random reboots: mostly in ones that underclock min frequency from 300 to 35 also some GPU governors can cause reboots even on the stock kernel. and kernels that don't throttle automatically depending on battery level (this is how google solved random reboot issues on stock kernel). I know elite kernel has quite numerous options try running stockish settings on it for a day or two and see if it fixes things. These are just my observations based on my own phone rather than anything in your logcat which I honestly have no idea how to read properly.

StykerB said:
I've noticed straying too far from stock kernel can result in random reboots: mostly in ones that underclock min frequency from 300 to 35 also some GPU governors can cause reboots even on the stock kernel. and kernels that don't throttle automatically depending on battery level (this is how google solved random reboot issues on stock kernel). I know elite kernel has quite numerous options try running stockish settings on it for a day or two and see if it fixes things. These are just my observations based on my own phone rather than anything in your logcat which I honestly have no idea how to read properly.
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i agree with you. thats why i went back to stock..

I was getting some weird stuff happening when using a different kernel. I'm back on a stock kernel and everything is better.

reyscott1968 said:
i agree with you. thats why i went back to stock..
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I'm attempting the same. Hopefully it gets better..

The problem is that you're trying to run random hacked-together crap that came from who-the-heck-knows that you found on the internet.
You're *bound* to run into stability and security problems.

Every Custom Kernel kills camera

Flashed 15 different times today, stock OOS 7.0. camera works fine on stock, even with magisk installed. As soon as I flash any custom kernel the camera app gets unknown error. Tried clearing cache, etc everything. Only stock kernel works. What gives?

You might want to read the kernel threads for help. Seems like if it was a kernel issue like you claim then someone else might have noticed it. Sounds like user error to me

954wrecker said:
You might want to read the kernel threads for help. Seems like if it was a kernel issue like you claim then someone else might have noticed it. Sounds like user error to me
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Thanks brain.

Magisk is the reason for those errors, im using custom kernel since android 7.0 with system less superSU only, I already tried three different custom kernels here and they didn't gave me any camera errors

J4DedPrez said:
Thanks brain.
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Wow, smartass answer for someone who can't flash a kernel without breaking the camera.
Actually, the answer is the solution you need, search and read.

exaflare said:
Magisk is the reason for those errors, im using custom kernel since android 7.0 with system less superSU only, I already tried three different custom kernels here and they didn't gave me any camera errors
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Thank you friend, sometimes being nice and giving the simple solution is the simplest method.

Migdilu said:
Wow, smartass answer for someone who can't flash a kernel without breaking the camera.
Actually, the answer is the solution you need, search and read.
Click to expand...
Click to collapse
Typical XDA user... It's a real shame kids these days act the way they do

J4DedPrez said:
Typical XDA user... It's a real shame kids these days act the way they do
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Click to collapse
What it's a shame is that there are people who don't know how to read.

Magisk does work with custom kernels, but the order you flash them in is important. Magisk alters certain files in the /boot partition, which is also where the kernel is located. You should flash Magisk first over a clean ROM prior to flashing any custom kernels, or else you may run into issues. If an update for Magisk is pushed, you should also install it in the following order:
1) Dirty flash ROM (or stock kernel)
2) Flash Magisk
3) Flash custom kernel
I'm currently using Magisk v11.6 with Franco's r16 on OOS 4.1.0 without a problem.

Don't mean to be rude, but did you flash the compatible kernel; and not using adb sideload problems; on TWRP 3.0.4-1?
If you did, well then Magisk seems to be a problem for you.
And do post logs next time of you encounter a problem until and unless you are sure you everybody can reproduce that problem with the steps mentioned (which should be though)

If you're still in Android 7.0 (like me), do not use the latest custom kernel release, it will break your camera (Unknown Error). I think it's because the dev has rebased their kernel to the new Android 7.1.1.
Currently, I'm still on FredomOS 2.5 (OOS 4.0.3) and its combined with BluSpark v.72 (last release before the 7.1.1 rebase).
I don't want to use the latest OOS update since it's still full of annoying bugs.

In my opinion only people who understand what they are doing with this kind of stuff should get the oneplus 3 or 3t as it isn't very noob friendly and takes someone that is some what an advanced user or at least knows a little about flashing ROMs and kernels etc..... Or at least is willing to search around and read before they complain to everyone that they can't figure it out. If you want a phone that is simple and noob use friendly then go to Samsung or Apple. not oneplus as phone from this company are aimed at the intermediate up to power user that understands how to solve irregular problems. I've had none of these issues even when I was using my oneplus x. I use the unofficial RR with ex kernel and no problems with camera or anything and great battery life. Bottom line is (in my opinion anyways) oneplus phones are for the more technically savvy so if you aren't some one like that expect to run in to difficulties and have to do some deep research in certain cases. But this is a great community here at xda and we are all willing to help as much as we can but patience is a must.

Anova's Origin said:
Magisk does work with custom kernels, but the order you flash them in is important. Magisk alters certain files in the /boot partition, which is also where the kernel is located. You should flash Magisk first over a clean ROM prior to flashing any custom kernels, or else you may run into issues. If an update for Magisk is pushed, you should also install it in the following order:
1) Dirty flash ROM (or stock kernel)
2) Flash Magisk
3) Flash custom kernel
I'm currently using Magisk v11.6 with Franco's r16 on OOS 4.1.0 without a problem.
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Click to collapse
Same exact order as you, even flashed fresh ROM and kernel only. Can't explain it at all. For now, I'm on stock with no custom kernel but have magisk.

mrinmaydhar said:
Don't mean to be rude, but did you flash the compatible kernel; and not using adb sideload problems; on TWRP 3.0.4-1?
If you did, well then Magisk seems to be a problem for you.
And do post logs next time of you encounter a problem until and unless you are sure you everybody can reproduce that problem with the steps mentioned (which should be though)
Click to expand...
Click to collapse
No sideload, using most recent TWRP, and yes, I will have logs to post tomorrow. As a quick flasher I never really bother for the logs, but this time I'm getting down to the bottom of this. I'll have logs tomorrow

motherninja said:
If you're still in Android 7.0 (like me), do not use the latest custom kernel release, it will break your camera (Unknown Error). I think it's because the dev has rebased their kernel to the new Android 7.1.1.
Currently, I'm still on FredomOS 2.5 (OOS 4.0.3) and its combined with BluSpark v.72 (last release before the 7.1.1 rebase).
I don't want to use the latest OOS update since it's still full of annoying bugs.
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This is exactly the issue. Thank you
se7ensde said:
In my opinion only people who understand what they are doing with this kind of stuff should get the oneplus 3 or 3t as it isn't very noob friendly and takes someone that is some what an advanced user or at least knows a little about flashing ROMs and kernels etc..... Or at least is willing to search around and read before they complain to everyone that they can't figure it out. If you want a phone that is simple and noob use friendly then go to Samsung or Apple. not oneplus as phone from this company are aimed at the intermediate up to power user that understands how to solve irregular problems. I've had none of these issues even when I was using my oneplus x. I use the unofficial RR with ex kernel and no problems with camera or anything and great battery life. Bottom line is (in my opinion anyways) oneplus phones are for the more technically savvy so if you aren't some one like that expect to run in to difficulties and have to do some deep research in certain cases. But this is a great community here at xda and we are all willing to help as much as we can but patience is a must.
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:good:

Flashing kernels made for 7.1.1 on 7.0 FW.

954wrecker said:
You might want to read the kernel threads for help. Seems like if it was a kernel issue like you claim then someone else might have noticed it. Sounds like user error to me
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Normal, helpful, response(don't be discouraged by some).
J4DedPrez said:
Thanks brain.
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Douche response.
Migdilu said:
Wow, smartass answer for someone who can't flash a kernel without breaking the camera.
Actually, the answer is the solution you need, search and read.
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Click to collapse
Obvious observation.
J4DedPrez said:
Thank you friend, sometimes being nice and giving the simple solution is the simplest method.
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Click to collapse
Hypocrisy.

Hi all !
This discussion might be related with my issue explained here:
https://forum.xda-developers.com/oneplus-5/help/camera-flashlight-youtube-t3886260
but only thing is I never flashed custom kernels, issue appears after a official update !
Any opinion, ideas ?
Thanks

Which resurrection remix is the best?

There are 4 versions (more or less) of Resurrection Remix ROMs (e.g Zenity, Sultan's, EAS-VOX) for the 3T and i don't know which to choose. I'm looking for the most stable, battery friendly and OMS-supported out of all of them. Support for custom kernels would also be nice but if it doesn't support them it's okay. Also, if there are any ROMs that has most of the features i listed, do let me know

Hi, i had same problem. And i did choose that one: https://l.facebook.com/l.php?u=http...sQE_8mxFikIynqJh4-cR9FyJiJ2kS201c6wpHZZNl&s=1
Everything is just fine

asydan said:
There are 4 versions (more or less) of Resurrection Remix ROMs (e.g Zenity, Sultan's, EAS-VOX) for the 3T and i don't know which to choose. I'm looking for the most stable, battery friendly and OMS-supported out of all of them. Support for custom kernels would also be nice but if it doesn't support them it's okay. Also, if there are any ROMs that has most of the features i listed, do let me know
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Click to collapse
I think they are all good but this version -> https://forum.xda-developers.com/on...development/rom-resurrection-remix-m-t3399960
Is the best in my opinion.
1. most frequent updates.(currently even nightlies)
2. comes with ex kernel
3. is the only aosp/laos rom out there that doesnt throttle while playing moderncombat.
I tried all other aosp/laos roms, not only all rr roms. And they all start throttling while playing moderncombat even with the same ex kernel and kernel settings. The game simply starts lagging because the cpu clocks down. And the funny thing is the device doesnt even start heating.
I was almost sure that the official rr is better but i switched back to the custom version and was shocked that it never throttles while playing even when gpu boost is on "high". You can also set the kernel settings using akt app to get better battery life. But for me the battery is good enough.

nadejo said:
I think they are all good but this version -> https://forum.xda-developers.com/on...development/rom-resurrection-remix-m-t3399960
Is the best in my opinion.
1. most frequent updates.(currently even nightlies)
2. comes with ex kernel
3. is the only aosp/laos rom out there that doesnt throttle while playing moderncombat.
I tried all other aosp/laos roms, not only all rr roms. And they all start throttling while playing moderncombat even with the same ex kernel and kernel settings. The game simply starts lagging because the cpu clocks down. And the funny thing is the device doesnt even start heating.
I was almost sure that the official rr is better but i switched back to the custom version and was shocked that it never throttles while playing even when gpu boost is on "high". You can also set the kernel settings using akt app to get better battery life. But for me the battery is good enough.
Click to expand...
Click to collapse
Do i need to apply the AKT tweaks all over again when i restart my device? if not, what profile are you using and how's the screen on time?

nissanoo0 said:
Hi, i had same problem. And i did choose that one: https://l.facebook.com/l.php?u=http...sQE_8mxFikIynqJh4-cR9FyJiJ2kS201c6wpHZZNl&s=1
Everything is just fine
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Click to collapse
what's the difference with all the other versions? I'm sorry if I'm a bit noob-ish

asydan said:
what's the difference with all the other versions? I'm sorry if I'm a bit noob-ish
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Click to collapse
Zenity is with EAS and with a kernel based on Renderkernel.
Sultanized RR is not based on official LOS, rather on sultans LOS 14.1
more infos you can get in their threads (OP). I would choose one of these. Both are stable and with OMS

phoberus said:
Zenity is with EAS and with a kernel based on Renderkernel.
Sultanized RR is not based on official LOS, rather on sultans LOS 14.1
more infos you can get in their threads (OP). I would choose one of these. Both are stable and with OMS
Click to expand...
Click to collapse
So should I choose the EAS version or this https://forum.xda-developers.com/on...development/rom-resurrection-remix-m-t3399960

asydan said:
So should I choose the EAS version or this https://forum.xda-developers.com/on...development/rom-resurrection-remix-m-t3399960
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Click to collapse
That's your decision. I think you are happy with both. Read here for more infos about EAS: https://www.linaro.org/blog/core-dump/energy-aware-scheduling-eas-project/

phoberus said:
That's your decision. I think you are happy with both. Read here for more infos about EAS: https://www.linaro.org/blog/core-dump/energy-aware-scheduling-eas-project/
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Click to collapse
Alright I think I'll try the Zenity's version. Also, can I ask which among this two do you prefer more? Thanks!

asydan said:
Alright I think I'll try the Zenity's version. Also, can I ask which among this two do you prefer more? Thanks!
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I would flash VertexOX or Zenitys RR

phoberus said:
I would flash VertexOX or Zenitys RR
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But Vertex has not many features, right?
I have official RR installed, but now I am unsure, if I should use one of the unofficials?!?
Are there many differences?

derAndroidler said:
But Vertex has not many features, right?
I have official RR installed, but now I am unsure, if I should use one of the unofficials?!?
Are there many differences?
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Click to collapse
Yes, Vertex has only a few features but is extremly stable and fast.
The official is good too, almost all roms for our phone are good. It's your choice

Should i flash a custom rom?

Hello, so I'm asking if I should flash a custom ROM instead of keeping my OOS 4.1.3?

U have to try man. It's clear thing for this device.

Thunderbolt said:
U have to try man. It's clear thing for this device.
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What roms do u recommend? Ive flashed RR on my mom's galaxy s5, it looks pretty good

idubis said:
What roms do u recommend? Ive flashed RR on my mom's galaxy s5, it looks pretty good
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One of available versions of RR, phoenix AEX, official AEX, Dirty Unicorns. Today im back to Phoenix AEX, it is a great, stable and fast rom with great developer.

idubis said:
Hello, so I'm asking if I should flash a custom ROM instead of keeping my OOS 4.1.3?
Click to expand...
Click to collapse
This is so vague, as it tells us nothing about what features you may be looking for, why you want a custom ROM, etc.
If you are just looking for something different, then sure, go for it. Similarly, if certain features of a custom ROM (or ROMs) look attractive, then go for it. There is really no downside, as unlocking the bootloader does not void the warranty. And reversing any changes (returning to stock) is pretty easy as well.
On the other hand, stock OOS is amazingly good. Very little bloat or skinning, but with the right amount (IMO) of customization added. Many folks (myself included) accustomed to flashing custom ROMs to get the most out of their device, have been just happy with stock OOS. But of course, there is always room for improvement, tweaking, etc.
It's an individual choice. Most users of Android devices will never flash a custom ROM. Majority probably don't even know what that means.

idubis said:
Hello, so I'm asking if I should flash a custom ROM instead of keeping my OOS 4.1.3?
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First determine what you`re missing in stock OOS, find those features in a custom rom/kernel and flash it. Done

gee2012 said:
First determine what you`re missing in stock OOS, find those features in a custom rom/kernel and flash it. Done
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I want something different, and good battery life

idubis said:
I want something different, and good battery life
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Its not just a rom or kernel that makes great batterylife, mobile reception strenght (modem ) and usage (apps, syncing, gaming yes or no) are vital too.

I'd go with FreedomOS or RRemix. Really LineageOS is mostly placebo battery fixes and an overabundance of customization options. Most of the lineage roms outside of RRemix are very unstable or just kinda useless. Hate to say it cuz some devs put lots of time in but Ive always found worse battery life with the same usage patterns on anything but stock.

OcazPrime said:
I'd go with FreedomOS or RRemix. Really LineageOS is mostly placebo battery fixes and an overabundance of customization options. Most of the lineage roms outside of RRemix are very unstable or just kinda useless. Hate to say it cuz some devs put lots of time in but Ive always found worse battery life with the same usage patterns on anything but stock.
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Click to collapse
Oh. That's bad. I want to use a custom ROM. But if Oxygen is so much better?!?!? :silly:
No good ROM available?

Well Oxygen OS was made for this specific phone in mind remember. So of course it fares best.

I don't know. Perhaps lineage with sultan kernel is an option.
I try to find the best ROM with great battery life, performance, stability, features etc. Any recommendations?
Phoenix is good, Resurrection remix also, but how is battery life and performance? So many features in it...

derAndroidler said:
Oh. That's bad. I want to use a custom ROM. But if Oxygen is so much better?!?!? :silly:
No good ROM available?
Click to expand...
Click to collapse
In the time you've been waiting around for someone to make a decision for you; you could have just unlocked the bootloader and flashed a ROM (of even more than one) and be trying it yourself.
Just make a TWRP backup of the stock ROM (or otherwise, know how to return to stock with the official zip file) and you can easily revert if you don't like the ROM you flashed.
No point in waiting for someone else to tell you what to do. Everyone's opinion and preference is going to be different. Just because someone tells you to flash a ROM or not (or which one), doesn't mean that is the right answer for you as an individual.
Even things like battery life and performance are going to vary drastically depending on how you as an individual use your device (as others have also mentioned). Then also throw in the differences in personal preferences and tastes; and the result is that you can't go by the direction of others. You need to decide for yourself.

redpoint73 said:
In the time you've been waiting around for someone to make a decision for you; you could have just unlocked the bootloader and flashed a ROM (of even more than one) and be trying it yourself.
Just make a TWRP backup of the stock ROM (or otherwise, know how to return to stock with the official zip file) and you can easily revert if you don't like the ROM you flashed.
No point in waiting for someone else to tell you what to do. Everyone's opinion and preference is going to be different. Just because someone tells you to flash a ROM or not (or which one), doesn't mean that is the right answer for you as an individual.
Even things like battery life and performance are going to vary drastically depending on how you as an individual use your device (as others have also mentioned). Then also throw in the differences in personal preferences and tastes; and the result is that you can't go by the direction of others. You need to decide for yourself.
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Click to collapse
Thanks. I already tried some ROMs. But I can't decide.
Are there big differences in battery life?

derAndroidler said:
Thanks. I already tried some ROMs. But I can't decide.
Are there big differences in battery life?
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Click to collapse
If you are still asking that question, then you missed one of the main points of my last post:
redpoint73 said:
Even things like battery life and performance are going to vary drastically depending on how you as an individual use your device
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Click to collapse
Plus others (more than one) on this thread have already answered the question (of battery life on the various ROMs).

No
Sent from my OnePlus 3T using XDA Labs

@redpoint73
You're right. It's only so difficult to decide, because here are so many ROMs and kernels and they are all similar and I want a good daily driver and don't want to change it the next years.

derAndroidler said:
@redpoint73
You're right. It's only so difficult to decide, because here are so many ROMs and kernels and they are all similar and I want a good daily driver and don't want to change it the next years.
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If you're so concerned about battery life, beta 7 + Franco kernel

sakumaxp said:
If you're so concerned about battery life, beta 7 + Franco kernel
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I will try lineage with sultanxda kernel. I hear it has amazing battery life.
I also like Resurrection Remix , but I suppose, it has bad battery life, but I'm not sure.

I've tried a handful of roms... they're all just fine in my opinion but I seem to always end up back on the Oxygen stock rom. I root, but that's about it. I just can't get over how well Oxygen OS is running these days compared to my OP2 ... Just flash and try! You won't hurt anything, and if you do you have a 99% chance of fixing it!