Discontinued
XDA:DevDB Information
SkyHigh S6 Edge+ T/W8 Exynos 7420 MM Kernel, Kernel for the T-Mobile Samsung Galaxy S6 Edge+
Contributors
UpInTheAir
Source Code: https://github.com/UpInTheAir/Exynos-7420-6.0.1/commits/SkyHigh-N920C
Kernel Special Features: Synapse ++ | EXT4 | exFAT | NTFS | CIFS
Version Information
Status: Stable
Current Stable Version: 3.3
Stable Release Date: 2016-05-04
Created 2015-12-04
Last Updated 2016-05-07
Warning - ChangeLog - Requirements - Installation - Download - Source
Discontinued
Help & FAQ
Discontinued
I've installed the kernel and everything is running great I will keep in touch thank you I'll be back after work
My phone is running great. No issues so far and no lag anywhere. I'm letting it set up and then I will start to do little Tweaks for performance and then battery life. I've tested kernels since day one with the first galaxy phone to now and this one by far has the greatest chance of being the most talked about for its quality and performance to battery life.
I can say that this kernel is fully functional on the SM-G928T. Kudos to "Up in the Air" for pumping this variant out so quickly. I am looking very forward to future development with this kernel. Also, I am new to synapse so if any one is able to post any screenshots of preferred settings it would be greatly appreciated.
The Hackecutioner said:
I can say that this kernel is fully functional on the SM-G928T. Kudos to "Up in the Air" for pumping this variant out so quickly. I am looking very forward to future development with this kernel. Also, I am new to synapse so if any one is able to post any screenshots of preferred settings it would be greatly appreciated.
Click to expand...
Click to collapse
I'm also new to synapse and will be grateful for help as well
I found some screenshots of synapse settings in another thread for this kernel for a different variant. I get the gist of the application but these settings that were posted seem to be based more towards just battery savings. In my opinion the battery life on this device is more than sufficient. I am looking to optimize speed and I am a power user. Gaming, video, downloads etc. I guess I will start tinkering with synapse myself and see how it goes.
I'm also into performance and with practice in tweaking this kernel I will have higher scores in hwbot then I did with the s5.
I score 3769 primes on hbot with a tiny bit of tweaking
3874 for me
Have you had any random reboots or freezes?
The Hackecutioner said:
Have you had any random reboots or freezes?
Click to expand...
Click to collapse
Reboots and freezes (induced by user) are NOT "random" and not the concern for kernel development or this thread. Not all devices are created equal. Don't OC or UV so much !
You can find your asv_summary in Synapse INFO section
Please read Post #3 (again).
I would advise to uncheck the "apply on boot" in Synapse app settings (3x vertical dots) whilst tweaking until you have found stable values that suit your own device asv.
Thanks
I actually didn't say that I had had any random reboots or freezes. I was asking because it has been a problem with some other kernels. I was actually going to praise your work for not causing them like I did in my first post when I gave you credit for doing a good job. But if you want to be presumptuous then I think I will refrain from the credit and just go back to another developers work that will appreciate the help and credit. Have a nice day sir.
The Hackecutioner said:
I actually didn't say that I had had any random reboots or freezes. I was asking because it has been a problem with some other kernels. I was actually going to praise your work for not causing them like I did in my first post when I gave you credit for doing a good job. But if you want to be presumptuous then I think I will refrain from the credit and just go back to another developers work that will appreciate the help and credit. Have a nice day sir.
Click to expand...
Click to collapse
This is DEVELOPMENT - NOT Q&A
I don't have your device and did you a favour by building and sharing it with you. You are one that pestered for me to build this for you and other users.....
Maybe next time I won't be so generous to ungrateful Noobs that don't appreciate the time I put in to help YOU.
So with questions such as yours and how you put it, leaves a lot to interpretation, so one has to presumptuous in their reply.
Good luck !!
I've not I repeat not had any reboots or freezes and I've been on the phone all day and tweaking it. This is a solid and fantastic kernel and recommend it to battery loving performance junkies very nice job
Actually I recommend it to everyone and upintheair is on this development the man deserves his props and respect
Rock solid! Thanks!!
v2.6 released
v2.6 update for SM-G928-T / W8 device variants
Check out the change-log in Post #2.
NOT TESTED. I DO NOT HAVE YOUR DEVICE !
XDA RULE #1 'SEARCH BEFORE POSTING". Please READ Posts #1-3 BEFORE flashing !!
Please CLEAR SYNAPSE DATA before flash: device settings > Applications > Application manager > Synapse > force stop > clear data
Have fun
Cheers
UITA
Day 2 My phone is running great no issues, I've been on it non stop and there aren't even excessive heat issues. If there is something you would like me to try I'm the guy
My score is getting better this is the highest I've ever gotten 3929 with just set on performance
Related
# I am not responsible for anything that happens to your phone
# Please keep in mind that many of these roms have ideas from other developers, so you will see some of the same tweaks. This is a learning process
# for me. I intend to keep learning with your constructive criticism. If you think I stole something from you, please pm me and I will either remove it or
# give you credit. If you have something that you think will help me, please feel free to tell me. This is just my way of sharing my current progress with
# the development community. If you know more about something than me,
# let me know.
This is a stock looking Rom with lots of tweaks. It runs smoothly. I would use it with Go Launcher. I have tested it with Synergy kernel and recommend it. This Rom comes with a new feature that is not completely ready. You can run it in terminal:
Code:
su
cd /etc/init.d
sh start.sh
sh fkturbo1.sh
This is not a completed rom but all the bugs I found have to do with the added scripts. All of the tweaks should work. Others will be added when I have time. I was hoping to get more done, but I started out in Notepad. It took me a day to remember that's why the script doesn't work. I hate Win 7. lol
Also, themes will be included when it is out of beta.
#NEW# FKTurbo v.2b
This feature allows you have a turbo in your phone. The higher the frequency goes, the faster and more powerful it will be. When completed, this will increase multiple settings towards performance when your phone is used heavily. It will automatically set them back to save power. It will be improved to remove all bugs and errors and work seamlessly with your phone. It is in beta, so I know there are some bugs that will be fixed. It will not activate on boot until it runs perfectly. I will add code to make it activate in a much smoother way in the next release.
Advantages:
-Easily switch to max power when you absolutely need it, automatically.
-Easily switch to power saver mode when you need good battery life, automatically.
-Go longer between charging by using extra power only when you need it.
-No more adjusting multiple settings to go from max power to max saver.
More new features as soon as this gets running right!
GB.6.tweak v.1b (Removed due to problems.)
fktweakedv0.2b (name changed)
fktweakedv0.4:
All features listed below.
Lightly themed.
Improved fkturbo.
Base on Mr.X's CIQ free 2.3.6
In the rom:
CIQ free 2.3.6
WiFi Calling
Deodexed and Zipaligned
SU
BusyBox
Init.d support
Kernel tweaks
VM tweaks
Data tweaks
Scrolling responsiveness tweak
Zipalign at boot
launcher in memory
UI with GPU
Delvik increased to 64mb
Wifi interval increased and other tweaks for better battery life
JPEG quality at 100%
Defrag database at boot
Touchscreen sensitivity increase
deadline scheduler tweaks
Sdcard cache increased
Lots of other tweaks
Team Kang's Toggle Buttons
Loopy smoothness
#NEW#FKTurbo#NEW# *
*not completed
Installation with CWM:
1. Download the Rom and your favorite kernel. (Synergy,Bullet,Faux,Darkside) (fkturbo works in synergy, but I haven't checked others yet)
2. Boot into recovery. (Hold Volume Up/Down and power on)
3. Install the Rom first and then the kernel.
4. Reboot and allow it a few minutes on the first boot, then reboot. *No boot animation means that it will go blank for a long time at first boot.
Link to the ROM (4shared):
http://www.4shared.com/zip/qzMe7f6n/fktweakedv04.html
Looks great. I love the MIUI battery gauge. I'll give it a try after v-day.
Thanks Buddy
Looks Nice! Ill report after I flash Thanks man!
Does this rom come with a custom kernal or a stock kernal out of the box
What do u mean of data tweaks and scrolling tweaks ?
Sent from my SGH-T989 using xda premium
fallenmk4 said:
Does this rom come with a custom kernal or a stock kernal out of the box
Click to expand...
Click to collapse
It has a stock kernel, but it will have other available kernels very soon. I plan to update this with the current version I'm running by this weekend. You can use any modified stock kernel. Not AOSP kernels.
ymcmbforever said:
What do u mean of data tweaks and scrolling tweaks ?
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
It is a very rough estimate of all the stuff that's in it. Data speed tweaks can potentially increase speed on networks. Scrolling tweaks makes scrolling smoother. Look in /etc/init.d/new2 or /system/build.prop for many of the tweaks. This is the old version, so the new one will have more stuff and a better explanation. Not all the tweaks are listed. There are many more to come!
Im doing this at work, so I don't have the time right now to list everything properly.
system rebooted, please keep the virus away
hit the report button for anyone off topic
Thank you Json. we are waiting for tje new rom coming.
@ Allgamer thank you for cleaning the thread.
New rom. Lightly themed. Almost done with the new feature!
Json'Smyth said:
New rom. Lightly themed. Almost done with the new feature!
Click to expand...
Click to collapse
So the rom is not complete???
Im a little lost
So is the rom in the op the updated or are you in the process of updating?
Not asking for an eta just wondering what rom is in the link.
tdizzle404 said:
Im a little lost
So is the rom in the op the updated or are you in the process of updating?
Not asking for an eta just wondering what rom is in the link.
Click to expand...
Click to collapse
The rest of the rom is working. It is version .4. I am still trying to perfect the code the new feature. I have lots of tests coming up (Bio, Chem, etc.), but I will try to get it perfected by the end of this week. This code is just a teaser that may have bugs in it. It will be updated. Thank you for your patience. Feel free to try it, but keep in mind that it may not work right just yet. If it messes up something, just run fkpower1.sh or powersaver.sh. fkpower1.sh is the better choice.
Code:
su
sh fkpower1.sh
bbobarino said:
Wow what a dousche. Rom control is beast absolutely brilliant and as for the 20 roms we have are awesome and the development in this forum is great. Only thing missing is an operational miui
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Everybody has a right to an opinion, even if it not something you agree with. Please try to keep the thread clean by posting your personal attacks to a different location. I understand that all original work takes lots of time and effort, but name calling is not necessary. Thanks.
Ill give it a whirl. there are a couple features I haven't seen advertised in other roms. _I thought all the haters had left the sgh-t989 tread. Must have just been at the haters ball instead of reading up on the Android kitchen. There is a link some where in the dev thread. Build something better and stop being an ass douché.
superuser696 said:
Ill give it a whirl. there are a couple features I haven't seen advertised in other roms. _I thought all the haters had left the sgh-t989 tread. Must have just been at the haters ball instead of reading up on the Android kitchen. There is a link some where in the dev thread. Build something better and stop being an ass douché.
Click to expand...
Click to collapse
I like your statement. very impressive.
Yes i pm you not posted in the thread posted in your pm rookie keep it to the pm *****
LOL he so butt hurt over. Rom control .....get a life man...[/QUOTE]
Sent from my SGH-T989 using Tapatalk
How about we don't ruin this devs thread for a second time?!? Thanks for your work jasn.
Sent from my SGH-T989 using Tapatalk
So in the sake of getting back to the point at hand what is this feature and what does it do for us?
Edubyah said:
So in the sake of getting back to the point at hand what is this feature and what does it do for us?
Click to expand...
Click to collapse
Good question!
This feature, which still needs some polishing, will allow you to save power when you are not using the phone heavily. It does this by modding the governor settings, which need some tweaking, and the voltage settings, which are being tested today.
When it senses that you are using the phone heavily, it will automatically increase the settings towards performance. As soon as the phone is no longer used heavily, it will automatically change all the settings to favor battery life.
This allows for a perfect balance between the power savings of undervolting, underclocking, and stiffening up the governor and the performance benefits of overclocking, etc.
This eliminates the need to decide between the full power of the phone and the ability to use the phone for longer between charging.
By the end of this week, I will have the settings tested (to make the power change smooth) and more steps between full power and full economy will be added. More settings will be adjusted by fkturbo by the end of the week. It may also be made more universal, but that will take longer than this weekend.
It is being updated to v0.5 for the rom and v0.3 for the feature.
What is this:
This is Stuxnet a custom kernel for Android, this kernel focuses on simplicity and stabiilty. All features on this kernel are based on long hours of testing and all are thoroughly tested to give end users the best experience for their device.
Stuxnet is mostly stock with optimizations and features that are often used by users that are not affecting performance on their device. Future development of this kernel will focus on Performance and Stability.
So enough with the intro and start testing this on your device.
Features:
Based on Xiaomi kernel source
Fully Optimized Kernel
Sound Control
FSYNC Control
Voltage Control
MSM Hotplug
Thermal Enhancements
USB Fast Charge
Check Github and/or Gitlab for full changelog
How To's:
Install in recovery
No need to wipe (unless you want to wipe your a$$)
Reboot
Kiss yo' mama
***** Slap an iPhone user.. Smile!
Enjoy
Credits:
Google
CyanogenMod
Linux
SimpleAOSP
and all custom kernel devs
Download:
CM
MIUI
Kernel has two builds Stable and Nightlies
WARNING!
This kernel is only compatible on CM based ROMs.
~End
Donations:
@morpheus620 - $15
@gary138.138 - $15
@Riichard63 - $20
Thanks man!
Will test it soon! Sorry for the Noob question but can you tell me if it can be used for building cm11. I am a noob in android development.
I'm using this at the moment on XenonHD. So far everything is working. And that smoothness....its off the charts! xD Btw Dev @Gnome, can you add Lionheart and Sio on the next release?
And LCD KCAL please.
Gnome said:
One More!
Click to expand...
Click to collapse
Thanks
Sent from my MI 3W using XDA Free mobile app
I just flashed this kernel on the XeonHD 4.25 build.
Hoping that they are good partners.
This is just a preview, I'll be adding some stuff from my previous kernels soon... just checkout my git for changelogs and also check the download page for new releases.
Gnome said:
This is just a preview, I'll be adding some stuff from my previous kernels soon... just checkout my git for changelogs and also check the download page for new releases.
Click to expand...
Click to collapse
Ooohh yeaahh! E. A. G. E. R. L. Y waiting. XD
Working on Bitti09's CM12.1 confirmed
No new governors yet! Waiting!
On Revolution Remix rom, i got camera fixed, and after using the GPS fix app, it fix the gps fery fast.. so, so far everything working!
Thanks a lot, @Gnome!
Jhayzt said:
And LCD KCAL please.
Click to expand...
Click to collapse
+1
I used KCAL controls on StellAR and the difference was AMAZING! (alas StellAR doesn't gel with XenonHD for me)
SharksT said:
On Revolution Remix rom, i got camera fixed, and after using the GPS fix app, it fix the gps fery fast.. so, so far everything working!
Click to expand...
Click to collapse
*Resurrection
UPDATE: @Gnome I flashed the kernel, everything seems to be working fine (WiFi, Sound mods etc).
But call bug v1 seems to be present (touchscreen active during call)...can't comment about call bug v2 (screen-off death) yet, but I hope it's not here, cuz I plan to use this kernel as my driver...
The Dork Knight Rises said:
UPDATE: @Gnome I flashed the kernel, everything seems to be working fine (WiFi, Sound mods etc).
But call bug v1 seems to be present (touchscreen active during call)...can't comment about call bug v2 (screen-off death) yet, but I hope it's not here, cuz I plan to use this kernel as my driver...
Click to expand...
Click to collapse
Sorry, can you make difference in V1 call bug and V2.
I missed something obviously
P.s. OP thanks for 1st OPEN ANDROID development thread wort mention
Gonna try after Worker's day
sudy_freak said:
Sorry, can you make difference in V1 call bug and V2.
I missed something obviously
P.s. OP thanks for 1st OPEN ANDROID development thread wort mention
Gonna try after Worker's day
Click to expand...
Click to collapse
Yeah, call bug v1 is something most ppl who recently joined the Mi3 forums won't have faced.
It is one of the major bugs (aside from deep sleep reboot) that was there in the original Lollipop ROMs for cancro. It was fixed a long time ago (by audahadi and Bitti I believe, as Ivan's ROMs had the bug for a long time afterwards too).
The bug was that the touchscreen would remain active when you're in a call and the proximity sensor turns the screen off. It would cause the notification/quicksettings panel to be pulled down or brightness to be changed due to contact with ear or cheeks. Other more complex things could also happen like when I once turned on Airplane mode while talking and got disconnected :laugh:
And call bug v2 is a new bug that seems to affect ROMs (except I believe Ivan's AOSP and SOKP which switched to Ivans kernel I think) since 5.1...
While calling (or sometimes VERY RARELY while doing something else) the phone kind of hangs, the screen goes dark and it goes into a screen of death mode. Nothing can be done, your only option is to press and hold Power button for a very long time (approx 12-15 secs; much longer than a normal hard reset ~8secs) to hard reboot your phone.
Hope you got it. :good:
PS. Yes, try this kernel. You won't be disappointed.
Added some under the hood stuff on 3rd build, also check if fast charge works, since it works fine on my end.
Gnome said:
Added some under the hood stuff on 3rd build, also check if fast charge works, since it works fine on my end.
Click to expand...
Click to collapse
Thanks Dev @Gnome! I'm trying it at the moment.
Wow, using alpha 3 working great even on temasek 10.6 by moonlight, just waiting another hotplug, IO Scheduler, CPU & GPU Governors, btw can you make a little downclock and overclock cpu freq tables? Thx for great kernel....
Gnome said:
Added some under the hood stuff on 3rd build, also check if fast charge works, since it works fine on my end.
Click to expand...
Click to collapse
Fast charge!
Very useful!
I'll try this asap.:laugh:
@Gnome , Buddy thanks for your work gonna try it soon
just a query
there are two build dated 30-4-15
Alpha 3 and Alpha Z
whats the difference which one to flash
ZenR2 said:
@Gnome , Buddy thanks for your work gonna try it soon
just a query
there are two build dated 30-4-15
Alpha 3 and Alpha Z
whats the difference which one to flash
Click to expand...
Click to collapse
dont mind the Lettered version, just flash the numbers.
Gnome said:
dont mind the Lettered version, just flash the numbers.
Click to expand...
Click to collapse
buddy flashed the alpha 3 build , but now wifi is not working on latest Xenon Hd rom
Deleted.
XDA:DevDB Information
deleted, ROM for the OnePlus One
Contributors
TheCrazyLex
ROM OS Version: 2.3.x Gingerbread
Version Information
Status: Testing
Created 2017-11-12
Last Updated 2017-11-12
Reserved
Reserved
Nice. Its great to see such dev love for the bacon. And thanks. Will try this out.
what is the crispy toolchain based off? Linaro, google, or straight from GNU?
_ASSASSIN_ said:
what is the crispy toolchain based off? Linaro, google, or straight from GNU?
Click to expand...
Click to collapse
It is based on gnu, but many patches from google and linaro are also there.
anirudhvk said:
Nice. Its great to see such dev love for the bacon. And thanks. Will try this out.
Click to expand...
Click to collapse
Thank you
Make sure you give me feedback
Congratulations
New kernel for my opo? it's only right that I test it out
Happy to see new support for ours Opo...
Thanks!
Congrats for the new kernel and welcome to bacon development. However i have just two queries,
1. Arch Power: i asked about this to the Tyr kernel dev and he specifically mentioned that this option should be disabled for better stability and performance. Is it enable by default in your kernel? Ofcourse it's your work and i respect your decisions as well.
2. Transparent Compression: I remember when it was first introduced by CM and it created so many issues on devices and finally many kernel devs disabled it. Any specific reasons to enable it? My info can be a bit outdated so forgive me if i have asked a wrong question.
Deleted
Added to OnePlus One index thread:
[INDEX] OnePlus One Resources Compilation Roll-Up
TheCrazyLex said:
Hey,
thanks. I like it if users ask me questions
1. Yes, in my kernel Arch Power is enabled by default. It is true that it has a small negative impact on battery life, however it improves performance greatly. I am still doing tests with Arch Power so if I have my test results I will decide if I'll turn it off or leave it on. Make sure you watch my Changelog
2. It is true that Transparent Compression v1 had many issues when it was introduced, however in the meantime it was patched and the only major flaw it has now is big memory usage. I believe on the OPO with 3GB RAM that wouldn't be a big problem. But I am not using Transparent Compression v1, I am using (the not yet released) Transparent Compression v2 brings a big boost in i/o speed and because of that also in performance. It is still WIP and has problems like dirty pages, but the pros of TC v2 are that big that I cannot disable it
I hope I could answer all of your questions
Alex
Click to expand...
Click to collapse
Wow! Those were some nice explanations. Thanks bro. Looking forward to try in on COS12.1.
Thank you for this new kernel man good work!!!
Now I'm firing up the COS just because of this. The stock COS kernel was a terrible.
The features listed sounds interesting and looks promising. How confident are you able to achieve a balance between battery life and performance when a lot of your changes seems to use a lot more power?
Deleted
Any change of add f2fs support in the future?
@TheCrazyLex
I have see with Tapatalk your thread have preview of your first page image.
How can I do this ? I never find a solution.
Thank a lot
Sent from my A0001
ak said:
@TheCrazyLex
I have see with Tapatalk your thread have preview of your first page image.
How can I do this ? I never find a solution.
Thank a lot
Sent from my A0001
Click to expand...
Click to collapse
haha! lol AK. I remember you're still figuring it out from the last month or so. :silly: :silly:
Howdy!
I hereby offer an alternative build of the latest visi0nary's kernel.
The original thread is located here
Please note that the credits remain with BlueFlame4 (the maker of visi0nary's kernel), as this is the same kernel, just differently built.
Some years ago I spent many months trying to optimize UI smoothness and power consumption for a kernel of a different device, in which I succeeded.
From this time I remember some build flags and kernel config settings that improved (scrolling) smoothness and power consumtion for that device at that time.
So, in an attempt to do the same for the P9000, I re-built the latest visionary's kernel with the following differences:
different/improved build flags
minor changes in kernel defconfig
compiled using a self-compiled sabermod toolchain
With these changes in the build process I try to achieve the following things:
improved smoothness/snappiness of the UI (NOT higher benchmarks - I just want the user experience to be as smooth as possible, benchmarks do not really matter)
improved (lower) power consumption
The built kernel feels improved in smoothness to me, but this might be my own biased opinion.
Anyway, I would appreciate, if some of you good people could use this kernel as a daily driver, in order to see after a few days, if there are really any noticable improvements over the original build of visi0nary's kernel. Please report back in this thread, thank you.
Installation: just flash in recovery - delete cache & dalvik cache afterwards (also in recovery, after kernel flash)
Attention: this build is not for cyanogenmod - it's for Stock P8000 ROM or other Stock-based ROMs like Eragon (I'm using it on the latest Eragon myself).
To verify that you are running the alternative build, you will see a "-gueste" (that's me) appendend to the kernel version number (see attached screenshot).
Thanks mate.
I will flash it to See if something is different/improved
Wish you all the best for this project!
Thanks Allways glad to see effort.
Testing will return with feedback.
Thanks for the kernel. I've just flashed it and so far I see that when you go directly to the battery menu from the notification bar, that menu is much snappier. On the stock and on visionary's kernel you had to wait a little bit to see the details of specific apps draining the battery. That's the feedback which I can say now, I'll try to give information about the power consumption in the future. Thanks for developing!
Thanks in advance at all.
For me so far power consumption seems to be very good (while it is not bad on the original build either). I'm anxious to see, how it will compare to the original build after 2 more days.
Hello! I have just fleshed the phone with this kernel. Seems great for now. Will update you for the power consumption in the near future.
P.S Im so happy that someone has taken over this project, and I hope it will keep you developing it!
boka18 said:
Hello! I have just fleshed the phone with this kernel. Seems great for now. Will update you for the power consumption in the near future.
P.S Im so happy that someone has taken over this project, and I hope it will keep you developing it!
Click to expand...
Click to collapse
Actually it is still BlueFlame4's project, as the changes I performed so far do not qualify for this project to be standalone. For now I only intend to make improved builds for visi0nary's kernel, but not my own kernel.
Making an own kernel out of this would include things like porting stuff to the kernel to enable new features - like SIO scheduler or "Snappy compression" for ZRAM, or even an enhanced kernel tweaking tool that allows the user to set additional kernel settings and tweaks in Android GUI.
But this is not the purpose of this thread/project
Stefan Gündhör said:
Actually it is still BlueFlame4's project, as the changes I performed so far do not qualify for this project to be standalone. For now I only intend to make improved builds for visi0nary's kernel, but not my own kernel.
Making an own kernel out of this would include things like porting stuff to the kernel to enable new features - like SIO scheduler or "Snappy compression" for ZRAM, or even an enhanced kernel tweaking tool that allows the user to set additional kernel settings and tweaks in Android GUI.
But this is not the purpose of this thread/project
Click to expand...
Click to collapse
Feel free - that's the spirit of open source! My P8000 is already on eBay so I'll visit this forum less and less. It's good to see people picking up my work though!
Stefan Gündhör said:
Actually it is still BlueFlame4's project, as the changes I performed so far do not qualify for this project to be standalone. For now I only intend to make improved builds for visi0nary's kernel, but not my own kernel.
Making an own kernel out of this would include things like porting stuff to the kernel to enable new features - like SIO scheduler or "Snappy compression" for ZRAM, or even an enhanced kernel tweaking tool that allows the user to set additional kernel settings and tweaks in Android GUI.
But this is not the purpose of this thread/project
Click to expand...
Click to collapse
I understand completely, but I DO hope that u will be able to continue optimising this great kernel!
What new in this kernel?
What the bug fix?
Okalash said:
What new in this kernel?
What the bug fix?
Click to expand...
Click to collapse
Pro Tip: Read the OP :laugh:
For me so far battery life seems to be very good.
After 2 days and 10 hours of uptime I still got 42% battery.
Now this value is not very informative, as it depends heavily on the usage of the phone.
Compared to the original build of the kernel at least power consumption seems to be better on my phone.
During phone uptime I occasionally played games (not very long though), was connected to bluetooth and wifi many hours, browsed through the web regularly and had only few and short phone calls. Over night for some hours I was in flight mode, while last night I wasn't.
Thank you for continuing the project! I flashed the rebuilt kernel because I had a "feeling" that the battery performance of the original Visi0nary kernel was somewhat lower than the stock kernel. (But maybe I am mistaken.)
So far I have no problems with the rebuild kernel. It is too early to comment on battery performance.
Does it make sense to run Skeleton's Seeder app (part of Eragon ROM) in conjunction with this custom kernel?
Moreover, is there any chance to port the P7000 kernel scripts that enable Android device encryption into this P8000 kernel/Eragon ROM? See http://forum.xda-developers.com/elephone-p8000/general/dev-cwm-elephone-p8000-t3200296/page11 The lack of device encryption is my main gripe with the P8000. Apart from that, I love this phone.
-Tiz- said:
Does it make sense to run Skeleton's Seeder app (part of Eragon ROM) in conjunction with this custom kernel?
Click to expand...
Click to collapse
This rebuild of visionary's kernel is feature-equivalent to the original build. So, yes, you can use the seeder app (I use it myself).
Regarding device encryption you need to understand that it has been left out of the ROM most likely on purpose, because this is a China-phone, and the chinese government is quite restrictive on encryption. And as Eragon (same as other stock-based ROMs) is based on the stock ROM, this feature is missing there as well.
This means, depending on the effort, Elephone made, to remove this feature from Android, it might be possible to reactivate it, it's just a matter of (testing) time.
I haven't tried with other ROMs like Cyanogenmod, but in theory it should work there.
As far as I have seen, the to enable encryption for P8000 stock and stock-based ROMs we would need to modify one or more scripts of the P8000 ramdisk (for example the russian guy you linked added in init.environ.rc:
Code:
export LD_PRELOAD libsigchain.so
And there are also a couple of other differences in the other rc scripts. It's not exactly clear (to me), which changes in the end are required for encryption to be enabled. Also we don't know if after these changes, the encryption option will magically appear in the device settings, or if we need to enhance the menu ourselves.
Furthermore, the russian guy mentions, that we might have to modify and rebuild the sepolicy binary file located in the ramdisk, in order to get selinux (security enhanced linux) to permit our changes (but I don't know if we would need that just for the encryption feature, as init.d already works for P8000 as opposed to P7000 - correct me if I'm wrong).
So to sum up, this sounds like a lot of testing, which I personally don't have the time for But maybe someone else does.
Don't take the Android encryption feature too seriously - at least not, if you are trying to hide from government. However, if you are trying to protect your data from normal people, it surely would be nice to have.
Stefan Gündhör said:
Tin order to get selinux (security enhanced linux) to permit our changes (but I don't know if we would need that just for the encryption feature, as init.d already works for P8000 as opposed to P7000 - correct me if I'm wrong). ...
However, if you are trying to protect your data from normal people, it surely would be nice to have.
Click to expand...
Click to collapse
Thanks. It is also my understanding that init.d already works for Eragon ROM. Therefore, I was hoping that it might be relatively easy to enable encryption. On the P7000, it seems that the menus simply appeared once the scripts were implemented. Wooster even talked about the possibility to make a "blind" patch for the the P8000.
Moreover, I agree that Android device encryption might not be 100% bullet-proof. However, it would allow me and others to sufficiently protect private email passwords and work-related data (e.g. if the phone gets lost or stolen). By contrast, the screen lock is no protection at all. In particular, if a custom recovery is installed ...
It appears that I am not the only P8000 owner who has a vital interest in device encryption:
http://bbs.elephone.hk/thread-6924-1-1.html#.Vow51hBukwE
http://bbs.elephone.hk/thread-9012-1-1.html#.Vow51xBukwE
Tonight I will download and test it
I don't care much about encryption, but God, I would pay for someone who could actually SOLVE the sub-15% sudden battery charge. Any chance you can look into/fix it, Stefan? You look like one of our potential hopes, haha
---------- Post added at 02:42 PM ---------- Previous post was at 02:41 PM ----------
BlueFlame4 said:
Feel free - that's the spirit of open source! My P8000 is already on eBay so I'll visit this forum less and less. It's good to see people picking up my work though!
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Click to collapse
Hi, sorry to ask but why exactly? Got a new/better phone? Got tired of the P8000 bugs/camera? In time, which phone did you get?
Best regards
Rizera said:
Hi, sorry to ask but why exactly? Got a new/better phone? Got tired of the P8000 bugs/camera? In time, which phone did you get?
Best regards
Click to expand...
Click to collapse
No problem, haha. Well, I bought this phone because I want to learn how to port CM or ROMs in general onto other devices and how Android works internally. Unfortunately MediaTek SoCs are quite beginner-unfriendly so I'll go for Qualcomm for now. Just got my Elephone Trunk btw Also there's basically zero "from source" development going on the the P8000 and it's not really fun to do all the things completely alone.
Cheers!
1.
Battery performance of the newly built kernel seems to be good. Heavy WLAN browsing still quickly kills the battery. But I could imagine that this is a hardware issue (power inefficient Mediatek WLAN modem?).
2.
"Also there's basically zero "from source" development going on the the P8000 and it's not really fun to do all the things completely alone. " Sad but true.
Announcing kernel "guestekrnl" (based on the latest version of visi0nary's kernel): http://forum.xda-developers.com/elephone-p8000/orig-development/kernel-guestekrnl-v1-6-2-t3287518
Kang Kernel
About
First with my story, ~4-5 years ago in the GB/ICS/JB/KK era I used to work on AOKP, a ROM for Android devices offering a lot of features. As time went on, we all got a bit burnt out from the project, and stopped actively working on it (though if this sounds interesting, the ROM is still kicking with new developers). I worked on a few projects for a bunch of devices (HP Touchpad, HTC One X, LG G2, LG Optimus G, Nexus 4). After taking a few years off and working for an Android OEM, I got the development itch again and snagged a Pixel 2 XL, and wanted to run a kernel I built.
This is a kernel I built for my own personal use, and it will probably evolve greatly as time passes (right now it is not incredibly different from stock). My personal priorities are always battery life and responsiveness under heavy load conditions. I am a big fan of doing a quantitative analysis on various performance-related aspects of the system.
Features
Updated to Linux v4.4.127
Safetynet passing
kcal color control
Undervolted CPU steps
MAC address randomization
CFQ upstreamed to latest
CRC disabled
fsync disabled (user controllable)
Wireguard support
Support and Installation
This should be compatible with any AOSP/Stock 8.1-based ROM, though I have only tested this on the Stock 8.1 April security update.
To install this, flash the ZIP in TWRP.
I usually wipe my Dalvik/ART cache after I flash as well, so give this a go if you're experiencing excessive battery drain/other issues.
Download
Download here
Check the Downloads section of this post
Donations
I am not accepting donations for this, and I don't ever plan on accepting donations. If you would like to donate, please instead throw a couple bucks at the people listed in the "Additional Contributors" section, or donate it to a charity of your choice. I don't need money and I am simply releasing a kernel that I have built for my own personal use.
Thanks
nathanchance and the android-linux-stable project for providing a great updated base, and AnyKernel setup + being a great reference
flar2 for kcal color control
sultanxda for his Safetynet patches
franciscofranco/faux123/frap129/freak07 for other random patches
the original #teamkang for introducing me to Android development
Source
Source code
Uses kang_defconfig and the default AOSP gcc toolchain
XDA:DevDB Information
Kang Kernel, Kernel for the Google Pixel 2 XL
Contributors
rohan32, nathanchance, flar2, frap129, franciscofranco, faux123, sultanxda, freak07
Source Code: https://github.com/mathur/wahoo
Kernel Special Features: Linux v4.4.127, kcal control, Safetynet passing, Undervolted, MAC Address randomization, CFQ upstreamed, fsync/crc disabled, wireguard support
Version Information
Status: Testing
Current Beta Version: 2018.04.08
Beta Release Date: 2018-04-08
Created 2018-04-08
Last Updated 2018-04-08
Almost feel obligated to flash this. ?
akellar said:
Almost feel obligated to flash this. ?
Click to expand...
Click to collapse
Hahaha good to see you here buddy, been a long time
OMG I remember you from htc one x I think. This is amazing. Thank you good sir and welcome back.
Welcome @rohan32 :highfive:
Going stock on my replacement device tomorrow so I'll be giving this a whirl. Appreciate you sharing it and working on it. Sure do miss me some AOKP though
Nice to see you here! Kudos
How do I go from Flash kernel to this? I am on Android P stock.
trizzv said:
How do I go from Flash kernel to this? I am on Android P stock.
Click to expand...
Click to collapse
Assuming this works on P, I just flashed in twrp over flash kernel and it worked fine.
rohan32 said:
Hahaha good to see you here buddy, been a long time
Click to expand...
Click to collapse
Does this work on Android P?
Is there any reason you disabled fsync? I thought that can be potentially dangerous?
Yeah I m using it on P @trizzvt
dukat0s said:
Yeah I m using it on P @trizzvt
Click to expand...
Click to collapse
Thanks! Did you just flash over another kernel?
Also does wiping dalvik/art wipe memory?
trizzv said:
Does this work on Android P?
Click to expand...
Click to collapse
trizzv said:
Thanks! Did you just flash over another kernel?
Also does wiping dalvik/art wipe memory?
Click to expand...
Click to collapse
This might work on P, but I haven't tested it on P at all, and it doesn't include the latest updates from the P branch from Google, so there might be some compatibility issues (or might not, totally depends on the scope of the changes Google pushed with P that isnt present in the April security update branch, and I haven't gotten the chance to peek at those changes just yet ).
Wiping dalvik/ART caches does not affect memory, it basically just clears the cache that your phone builds over time launching these apps. Totally not strictly necessary though.
mykenyc said:
Is there any reason you disabled fsync? I thought that can be potentially dangerous?
Click to expand...
Click to collapse
Indeed, fsync flushes the file buffers contents to disk immediately, but incurs a small performance hit. With fsync disabled, the buffers are still flushed to disk, but just not as frequently, so there is a potential for data loss in some rare conditions, but most likely not. I definitely get someone's concern about disabling it though which is why you can toggle it via a kernel manager app .
Flashed this on my backup p2xl yesterday and the battery life has been great. I think I might move it over to my daily driver and give it a full run. Thanks!
@rohan32 - didn't you Dev for a some Nexus devices as well? I remember the name.
Great kernel. Really impressed with performance and battery life
Sent from my Pixel 2 XL using Tapatalk
piyush7243 said:
Great kernel. Really impressed with performance and battery life
Click to expand...
Click to collapse
This kernal is very good for battery life and smooth performance. Thanks to Mr Rohan for such nice kernal.
Nice so far. I just flashed over Flash. I was happy with Flash so I am sure this will be just as good. Kernel feels smooth, battery feels like it is improving, even slightly better intimacy at home which makes the wife happy. What a kernel!
Thank you @rohan32
@rohan32 i just flashed your kernel and fast charging doesn't work for me
I reported the same issue in flash kernel thread and @nathanchance figured the issue and was related to pixel having two different battery cells or like that and he fixed that.
Can you please update it?
Cheers ?
Sent from my Google Pixel 2 XL using XDA Labs
Thanks for the nice kernel. Love especially the mac randomation! Only thing missing is dtw. Would be great if you can add this gesture maybe in mai release.