Database Info

Toolchain / Wakeup Lag

Various developers have noticed differences in the amount of lag between different toolchains. Dkcldark reported having a toolchain that nearly eliminates this problem, and was able to share with me how he built it using ct-ng. In essence, the versions and options selected in the arm-iphone sample config for ct-ng produce a toolchain that seems to give much better results. A binary package for linux-x86 is available here. I find that my device is typically ready to use after sleep in about one second, running a kernel built with this toolchain and my fast-stepup and OC modifications, and this is similar to the worst-case behavior for stock kernels. Hopefully this will be helpful to others who want to build kernels - I'm going to try other gcc versions with ct-ng without changing any other options and see what results I have with them.
Results (linked to a toolchain download when a kernel has been built successfully):
binutils 2.19.1, gcc 4.3.4, newlib: about 1s lag on wakeup
binutils 2.19.1, gcc 4.4.3, newlib: kernel panic at UI startup

Good work Unhelpful! Glad you decided to share this with everyone rather than keeping it to yourself and ignoring people.

Excellent work! Thank you SO much for sharing . I know JAC is already making a kernel using this toolchain for the Vibrant. Your work is MUCH appreciated

Thanks..
Honestly, friend... Thank you. I wanted to start looking at kernel sources and trying to build them or at least follow the changes.. I really appreciate your openness with what you've found.

Good find.

[KERNEL][ICS][STOCK-ROM] CPU OC 1.83ghz(ov, uv) , scorched, zen, L2 & bus bw boost

[KERNEL][ICS][STOCK-ROM] CPU OC 1.83ghz(ov, uv) , scorched, zen, L2 & bus bw boost
**NOTE: this is a Kernel ONLY, it works with the stock ROM, whch is why I put STOCK-ROM in title.**
Heyas all.. Ive never been a fan of full blown ROM changes because that often leaves features missing, like Wifi calling which I cannot live without...
So... I just wanted to announce Ive basically taken the following project:
[Kernel][ICS] TFQ Scorched Kernel ICS v1.0.22: http://forum.xda-developers.com/show....php?t=2052377
and this project:
-CM Based ONLY! [KERNEL]OC/UV up to 1.83GHz h0tcakez-ICS | 3.0.8: http://forum.xda-developers.com/show....php?t=2027054
and combined them.
This kernel is based on build ICS LH5, works with modem flash UVMB1.
Im using the original source code provided in the first link and tweaking clocks / voltages for cpu, L2 & bus speeds etc.. while adding the increased clock speed of the 2nd link.
This kernel is still experimental as Im testing it on my phone. There are a bunch of variables when it comes to this code and finding the right clocks / voltages can be tricky.
Im aiming for most effecient clocks / voltages on my particular device. This may not be ideal for the rest of you because my particular CPU / hardware may be worse or better to others out there. So, finding a middle ground would be ideal. Thats whats still in the experimental phase.
!!--10.01.14--!!
My device was stable all day today, used various different features including GPS to get around ... no problems, and have used several CPU stress apps at lower than voltage settings specified in my firmware. My device seems to do 1.83ghz @ 1.25v - not bad me thinks...
Anywho, I worked on the code more today and GPU OC is integrated. The device is set 228mhz 2d & 300mhz 3d by default.
Also, signed CWM flashable .zip file is attached to this thread!
Quadrant: over 5400
AnTuTu: over 15400
Here is my github of the project:
https://github.com/GenTarkin/SGH-T769-kernel
I plan on adding a 'stock kernel build' as well at a later date.
Feel free to offer any suggestions.

UPDATE ~ GPU OC added & CWM .zip file posted!
Enjoy all, feel free to try it out.
I plan on releasing a completely stock kernel .zip file as well soon.
Tips: BTC- 12jjayHWtUci3ygPXD4i2yUHMySytiUBd4

Glad to see others are starting to develop for this phone again. Thanks!

[H850,H830,RS988] mk2000 Kernel [STOCK]

THANKS:​
shminer: For his repository
eoghan2t7: For his repository
Mentalmuso: For his repository
savoca: For the invaluable KCAL
USA-RedDragon: For his repository
nathanchance: For his pre-merged sources
TheCrazyLex: And developers of AOSPA, grabbed lots from there
emdroidle: For his work with rooting, and kernel patches
eng.stk: For his blu_active governor, and inspiration
frap129: For his Maple scheduler, and repository
alucard_24: For his governor, and G5 repository
franciscofranco: For his many kernel patches
Lord Boeffla: For his Wakelock Blocker etc
sultanxda: For his many kernel patches
warBeard_actual: For his VM tweaks
neobuddy89: State notifier etc
arter97: Adreno idler etc
flar2: Adreno boost etc
And other's I probably forgot
Previous Versions:​
Features:
1.4 Nougat
Linux 3.18.85
KCAL - Screen panel control.
ElementalX and Zzmoove CPU governors.
Modules signed and secure, as in stock rom.
Disable software CRC checking of SD Card - More performance.
CRC32 and CHACHA20 HW ACC, CRNG based on CHACHA20.
Many patches that improves or fixes things.
Maple I/O scheduler.
LZ4 compression.
RCTD removed.
1.5 Nougat
Linux 3.18.92
KCAL - Screen panel control
Alucard, and blue_active (by eng.stk) Governors
Integrated Virtual Memory tweaks (war_mod) and Blu_active settings into ramdisk
Many work-queues converted to *system_power_efficient_wq*
Patches from CAF mostly, to various subsystems
Support for UAC2 external DAC
Boeffla Wakelock Blocker
Maple I/O scheduler
Adrenoboost
On/Off Fsync
Adreno Idler
1.5.5 Nougat
Linux 3.18.97
KCAL - Screen panel control
blu_active (by eng.stk) cpu governor
Integrated memory tweaks (war_mod), and blu_active settings into ramdisk
Many threads converted to *system_power_efficient_wq*
Toggle USB2 900mA Fast-Charge
Support for UAC2 external DAC
Toggle HiFi mode on/off *
Maple I/O scheduler
Toggle Fsync on/off
Adreno Boost
Adreno Idler
WireGuard
* /sys/kernel/hifi_mode/enable_hifi_mode "1" = enable
- WCD9335 HiFi mode not enabled by default in LG source. This toggle will enable it on the fly.
Download: AndroidFileHost
Anyone is free to include it in their ROM as they like
Compiled with GCC 9.1.1
[2.2] Features:
Linux 3.18.140
SultanXDA's CPU Boost
KCAL - Screen panel control
Backported kernel improvements
Toggle USB2 900mA Fast-Charge
Boeffla Dynamic Sync Control
Boeffla Wake-Lock Blocker
Various patches and fixes
RCTD/Triton disabled
Maple I/O scheduler
DriveDroid support
Modules disabled
WireGuard
K-Lapse
Download: Oreo G5 Folder
The (AnyKernel2) flashable zip will flash kernel as well as /system/lib/modules. If you want to go back you should backup modules as well
Sources:
https://github.com/stendro/msm8996_lge_kernel
LGH830SV_LGH830TN_Android_Oreo_v30c.zip - From http://opensource.lge.com

Questions
Q: Will this work on newer bootloaders?
A: It should. The kernel is based on the most recent of LG sources.
Q: What control app do you suggest using?
A: I suggest using SmartPack, or EX Kernel Manager.
Q: Where can I donate? I want to donate!!
A: I don't accept donations because of two reasons. One: I don't really need it. Two: I like the idea of this being totally free, it adds to the enjoyability of the kernel.
Q: I'm having some problems with kernel not working or booting?
A: If you have downgraded your bootloader (i.e by flashing Asgard kernel first) then that is likely why. My kernel works on new firmware, not exactly sure how far back the compatibility goes.
Q: I flashed this zip in recovery, but it didn't seem to work, I'm still on my old kernel. What can I do?
A: With AnyKernel you shouldn't need to re-flash ROOT after flashing kernel (if already installed, if not, do it before flashing kernel). SuperSu has been known to revert the kernel install if you do so.
Q: OK so I just rooted my phone and installed this, and OMGOSH! so excited, now what do I do - do I tweake-dy freak out huh huh? How do I do it??
A: Put simply, don't do anything. I don't know how things where in the past, but now you don't need to do anything. Not with this kernel anyhow. Such thing are better discussed in a separate thread anyway.

Thanks for your work. Tested your kernel with H850 and Fulmics 4.5. Works well but bluetooth isn't working, it's not possible to activate.
Returned with backup to stock.
Best regards
mkpcxxl

mkpcxxl said:
Works well but bluetooth isn't working, it's not possible to activate.
Click to expand...
Click to collapse
Thank you for your report. How silly of me, I forgot to test bluetooth since I never use that.
I'll see about uploading a fixed version soon.

Version 0.8 is up.

askermk2000 said:
Version 0.8 is up.
Click to expand...
Click to collapse
Flashed and now bluetooth is working.
Thanks again for your work.

I am sorry, but where can I find the source code for this kernel? If it is one of github links, which of them is the one?

dadittoz said:
I am sorry, but where can I find the source code for this kernel? If it is one of github links, which of them is the one?
Click to expand...
Click to collapse
I'm sorry too, but when I started this project, I did it in the only way I know (and what seemed simplest to me) and that is to do stuff manually. I don't have experience with github or any elaborate development tools, heck I hardly know how to do this stuff, but I'm learning more and more.
I can upload the latest source in zip if that is satisfactory.
Sorry if this breaks xda rules, but I'm sure I've seen other projects not having their full, direct sources posted.

askermk2000 said:
I'm sorry too, but when I started this project, I did it in the only way I know (and what seemed simplest to me) and that is to do stuff manually. I don't have experience with github or any elaborate development tools, heck I hardly know how to do this stuff, but I'm learning more and more.
I can upload the latest source in zip if that is satisfactory.
Sorry if this breaks xda rules, but I'm sure I've seen other projects not having their full, direct sources posted.
Click to expand...
Click to collapse
Well, as far as I know GPL requires sources to be published. But it's not that I brag about complying to licenses. I am genuinely interested in changes made. I enjoy reading @eoghan2t7 commits on his kernel tree every few days. As for me, I am not really interested in a single zip Version control systems are awesome and it would be great if your kernel tree could use it.

dadittoz said:
Well, as far as I know GPL requires sources to be published. But it's not that I brag about complying to licenses. I am genuinely interested in changes made. I enjoy reading @eoghan2t7 commits on his kernel tree every few days. As for me, I am not really interested in a single zip Version control systems are awesome and it would be great if your kernel tree could use it.
Click to expand...
Click to collapse
Yes, as I got further into this project I figured it would be better to open a qithub account next time.
So I'll probably do that with the next major source drop from LG.

Flashed in fulmics 4.5, running fine so far. I will report battery life, thanks for your job!
Enviado desde mi LG-H850 mediante Tapatalk

.
battery life is not quite as good

Nick cutter said:
battery life is not quite as good
Click to expand...
Click to collapse
I think you might be right.
May be a problem or conflict with cpu hotplug. I will look into it.

that sounds good but otherwise a great kernel keep it up :good:

Tha.ks for this great kernel. Only two flaws so far: Battery and overheating.

Can you upload your fully kernel source ?
GPL

Nick cutter said:
battery life is not quite as good
Click to expand...
Click to collapse
Hadi99 said:
Tha.ks for this great kernel. Only two flaws so far: Battery and overheating.
Click to expand...
Click to collapse
Hm, don't have this problems, Battery is like stock and temps are normal.
I remember I've had overheating with Asgard kernel.
Regards
mkpcxxl

@walter79
Link added to first post. Bottom.

mkpcxxl said:
Hm, don't have this problems, Battery is like stock and temps are normal.
I remember I've had overheating with Asgard kernel.
Regards
mkpcxxl
Click to expand...
Click to collapse
Temps are alot more stable right now, but battery life is still horrible for me.
Asgard did indeed have overheating in versions 5.x, but since then it had been fixed

Version 1.0
Super excited about this one
Compiled with gnu11, graphite, O3 and other optimizations. Most of them was borrowed from @jahlex D.O.T.S Kernel (Thanks!) - but gnu11 was my idea. I really don't know if is good to do or not, but hey...
It's been tested "adequately" I'd say. But that probably means inadequate in most tongues, however, I like to take few risks and gamble every now and then
Performance seems very much increased, battery as well.
Added Maple i/o
Alucard and Zzmoove (bLE) governors
Fixed small omissions here and there
Maple is default IO (was initially going for FIOPS), since that hooks into "display_state" making it aware of screen on/off.
Zzmoove is default cpu governor. Alucard could not be set as default at build time - kernel would not boot
I've added a zip to fix lg bootup script in /system/etc - it, amongs other things, sets *interactive* governor as default
Hotplugging characteristics can be customized.
May it serve you all well!

[Thea][KERNEL][HMP][Linux 3.4.113] Floppy Kernel [RC1][19/12/17]

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Floppy is kernel for all custom rom based on LineageOS 14.1, support the Moto G 2014 LTE (4G)
Code:
#include <disclaimer.h>
* Your warranty is now void. *
* No guaranteed this'll explode your device, be careful, follow the instructions ! *
*don't point at me if your alarm dies after flashing this kernel ! *
Based on Linux Kernel 3.4.113
Based on LineageOS Kernel
GCC Linaro 7.2.1
Governors: yankdemand, yankactive, smartmax, lionheart, impulse, dancedance, BioShock, zzmoove, intellidemand, intelliactive, Interactive, Conservative, Ondemand, Powersave and Performance.
I/O Schedulers: Zen, Noop, Sio, Sioplus, Tripndroid, vr, bfq, row, fiops and deadline
Compiled with -Os
Full Linaro Optimizations ON
Optimized Parameters from L Speed @Paget96
Overclock CPU 1593600Hz
Overclock RAM to 566MHz
Reclaim RAM from loggers
Google Snappy Algorithm
ARM RWSEM Algorithm
S2w and Dt2w - credits : showp1984
USB Fast Charge Mode
Spectrum support
Kernel Samepage Merging (KSM)
Dynamic File Sync and Asynchronous FIle Sync - credits : andip71 | Francisco Franco
Frandom - Entropy Generator
USB OTG NTFS r/w Support
SYSInterface Gentle Fair Sleepers
Performance enhancements
Intelliplug 4.0, Alucard Hotplug, autosmp
OC Slimbus frequencies to provide better sound quality
Arch Power saving - credits : kirananto | Cl3Kener
Adreno Idler- credits : arter97 | yarpiin
Sound Control
Support f2fs, exfat, ntfs filesystem
Quick WakeUp Driver and power suspend 1.7 - credits : Paul Reioux | Jean-Pierre Rasquin | Francisco Franco
Support cpu boost
MDSS color control - credits : savoca
Sysfs interface to Enable/Disable CRC
Intelli-thermal v2
Kexec-Hardboot - credits : hurtsky
Sysfs interface wakelocks - credits : Francisco Franco
TCP Congestion Algorithms: Westwood (default), Reno, Bic, Highspeed, Hybla, HTCP, Vegas, Scalable, Lp, Yeah and Illinois.
And much more!
First time:
Reboot to recovery
Flash FloppyKernel.zip
Wipe cache e dalvik cache
Reboot
Update the kernel:
Reboot to recovery
Flash FloppyKernel.zip
Wipe cache e dalvik cache
Reboot
Coming from another kernel:
Reboot to recovery
Flash your ROM
Flash FloppyKernel.zip
Wipe cache e dalvik cache
Reboot
Floppykernel
LineageOS builds for Thea
LineageOS
Mi5Devs
@GreekDragon
XDA:DevDB Information
FloppyKernel, Kernel for the Moto G 2014 LTE
Contributors
Jonas Cardoso, Caio99BR, InsideMuz, Artur Macedo Costa
Source Code: https://github.com/JonasCardoso/android_kernel_motorola_msm8226
Kernel Special Features: A magical support, I am all day here, reading the publications of the posts, ready to help in any doubt (unless you have not read the OP that contains the information that you need).
Version Information
Status: Stable
Current Stable Version: RC1
Stable Release Date: 2017-12-19
Created 2017-12-19
Last Updated 2017-12-19

RC1 - 19/12/2017
Initial release

Frequently asked questions
Q: Will this conflict with any mod I'm using?
A: As long as it doesn't have any entropy related stuff, its okay. Since the kernel already comes with an inbuilt entropy generator, it will conflict with the ones from mod, causing a poor, stuttered performance!
Q: Deep Sleep isnt working for me, Google Services causing wake-locks, what to do?
A: Go to settings, Privacy, Privacy Guard, All apps, long press Google Services, and deny/disable wake-locks! (Thanks to @Paget96 for the solution)
Q: Is your kernel secure?
A: You MAY face some issues, but it's safe! My cell phone has not exploded yet.
Q: WiFi doesnt work for me.
A: Reflash ROM and Kernel.
Q: What application can I use to configure the kernel?
A: Use Spectrum, and if you have enough knowledge of what to modify or do in the application use together Kernel Adiutor.
Q: Can I use the kernel source in my ROM?
A: If you want to use my kernel in your ROM, just put my name in the credit, just like I did.
Q: Does your kernel support writing to the NTFS file system?
A: Yeeh, you can use flash drives and HD with NTFS via OTG.
Q: My cpu clock is locked with any governor.
A: Just disable the thermal control in the kernel temperature settings.
Q: I have problems with your kernel.
A: Take a logcat and kmesg, this website and this video should help you
Q: Why does my magisk and root disappear after installing your kernel?
A: The kernel script makes changes that directly interfere with both, reinstall the magisk that it will function normally, follow this installation line always: FloppyKernel -> Magisk -> Reboot system.
Q: What is the "Battery" profile in the spectrum?
A: Based on Project Zhana & X.A.N.A was made for trying to be as efficient as possible without compromising the performance. Thanks to the discovery on Voltages used by our SD820 I could make a profile that utilizes more the BIG cluster. My first attempt was to move ALL the load to the BIG cluster, it was against anything that I have learned about little. BIG CPU but I tried, it turned really good at first, low usage was just amazing... But on more usage things didn't go that good. So what I did it was to give a twist to things, but not such twist. It kind of works like Nameless and Shotgun, Mostafa Wael and I worked the same idea. #LITTLE cluster will be running on low-mid frequencies but delivers full performance when is needed. # BIG Cluster will help LITTLE ease Load, but in a great way than before. Things can be done faster and more efficient giving us profit in form of battery. It should run smooth on all scenarios, but you guys tell me. You can easily get around 7~9 hours SOT for 24 hours even more If you don't play game. This will, of course, may vary, but it will definitely be better.
Q: What is the "Balanced" profile in the spectrum?
A: Based on GhostPepper was made to uses a quantized, frequency-aligned parametric curve to influence low core clock rates while providing extremely smooth transitions from each clock rate and exceptional battery life. Really well-defined clock speed escalation for a good battery and performance.
Q: What is the "Performance" profile in the spectrum?
A: Based on FusionP this profile brings a more "agressive" way to scale frequencies. It will scale frequencies sooner(regarding load values from cpu) and will use more the big cluster to provide more performance doing the tasks on hands. Battery should not take a big hit but using heavy demanding tasks you can expect a higher drain.
Q: What is the "Gaming" profile in the spectrum?
A: Based on Burnout PR5, this profile's main goal is to provide absolute maximum performance when needed, but lies low quite well. You see, some times I see the CPU hitting some of the high freqs of 1190 while making something as simple as watching YouTube or playing some spotify tracks needlessly, and sometimes I feel it is a bit slower than it should be in things like brute multitasking. Most profiles do aim at bringing a mid-ground to rest on. But with the sensible words of one of my favourite idols Jeremy Clarkson, he says 'Power solves everything' and right he is. By eliminating the mid freqs of the Little cluster and efficiently using some specific frequency steps, you get some power savings by staying on lower freqs as much as possible, and even on brutal tasks you get the job done faster as well, since the CPU will give you all the power to finish the job as fast as it can, and hit back to idle faster.
Q: I want more information about your spectrum profiles.
A: Read this thread.

Hi there.
Is it possible to run this kernel on the LOS 15.1?
Did read that it is for the 14.1, but you know, why not try to brick it?
Have you tested it? Cause the android go version of oreo with a good kernel could really make thea a brand new entry-level phone. With google camera 5 it could even compete with some budget phones from 2017.

Thanks for the kernel, Just flashed it on AOKP Nougat and it's running smoothly.
I discovered Spectrum with your post, amazing app to don't have an headache with kernel tweaking.
However does Spectrum activates a hotplug or does I have to activate it with kernel adiutor or else ?
PS: Spectrum profile's values can't be seen in Kernel Adiutor, I just see Lineage profile values... Also by looking at your spectrum init script I see that you assume that Thea have BIG and small clusters. when I'm trying to `cat` the value for some lines they do not exist.
Thanks a lot for keeping our good old Thea alive.

One more thing.
Could you make the kernel compatible with the oneoplus camera from this post ?
What camera app are you using?

BridouZ said:
Thanks for the kernel, Just flashed it on AOKP Nougat and it's running smoothly.
I discovered Spectrum with your post, amazing app to don't have an headache with kernel tweaking.
However does Spectrum activates a hotplug or does I have to activate it with kernel adiutor or else ?
PS: Spectrum profile's values can't be seen in Kernel Adiutor, I just see Lineage profile values... Also by looking at your spectrum init script I see that you assume that Thea have BIG and small clusters. when I'm trying to `cat` the value for some lines they do not exist.
Thanks a lot for keeping our good old Thea alive.
Click to expand...
Click to collapse
Yes, I got this script from the source of my Mi5, some lines do not change it, because the kernel moto g 2014 does not have the resources

Breno Spangler said:
One more thing.
Could you make the kernel compatible with the oneoplus camera from this post ?
What camera app are you using?
Click to expand...
Click to collapse
For this i need source kernel to put this feature

Breno Spangler said:
Hi there.
Is it possible to run this kernel on the LOS 15.1?
Did read that it is for the 14.1, but you know, why not try to brick it?
Have you tested it? Cause the android go version of oreo with a good kernel could really make thea a brand new entry-level phone. With google camera 5 it could even compete with some budget phones from 2017.
Click to expand...
Click to collapse
In the build that I made available probably does not work because of the need Oreo changes

s2w for thea? Amazing

zitronenmelissa said:
s2w for thea? Amazing
Click to expand...
Click to collapse
So far it only works on titan

Any can test in LOS 15.1?

Unfortunately not booting on my phone
Jonas Cardoso said:
Any can test in LOS 15.1?
Click to expand...
Click to collapse
Tried flashing your new build...dirty flashed and then, because it wasn't working, clean flashed on 28/12 and 29/12 build of LOS 15.1 with TWRP 3.2.1-0. But unfortunately the phone (thea - XT1072) was stuck on boot logo every time. I really would like to see the kernel working on LOS 15.1, because it worked really good on LOS 14.1.

A few questions mate:
So the cpu is clocked to 1.6 Ghz right? Cpu z shows it reaching 1.2 only. Perhaps on performance profile?
How do i enable dt2w?
Got some lags in some animations, for example in settings, going to display, the animation in between is kinda sluggish. Whats funny is, overall the device is smoother! Some settings must be changed perhaps?
Is the permissive Selinux a big deal?
Im using Los 14.1 with your balanced profile. Thanks, happy new year!

Arcline said:
A few questions mate:
So the cpu is clocked to 1.6 Ghz right? Cpu z shows it reaching 1.2 only. Perhaps on performance profile?
How do i enable dt2w?
Got some lags in some animations, for example in settings, going to display, the animation in between is kinda sluggish. Whats funny is, overall the device is smoother! Some settings must be changed perhaps?
Is the permissive Selinux a big deal?
Im using Los 14.1 with your balanced profile. Thanks, happy new year!
Click to expand...
Click to collapse
Use kernel adiutor, cpu z is not very good to get info, dt2w dont work on thea, only in titan, it is normal to have some lags, after all it is an old device already, it also depends on its use, selinux dont will stop the lags, if that's what you're thinking

I'm using in titan, your kernel doesn't lag but battery gets horny (bad joke) I mean that the battery duration got worst, you maybe consider undervolting a little and upgrading your lmk parameters because it does make apps don't lag but it's a little aggressive, it does FC my keyboard (google keyboard) and I don't wanna be annoying but I have a request, can you bake voltage control into the kernel?
---------- Post added at 09:39 PM ---------- Previous post was at 09:26 PM ----------
I can provide sources for voltage control if you want and, where I send logs?
---------- Post added at 10:21 PM ---------- Previous post was at 09:39 PM ----------
The fix for laggy animations when opening recents and for almost the animations is disabling the adreno idler, or tweaking it

If you have any other test builds for 8.1 just pm me so I can test it

I am using Thea. I like your kernel but had to remove it and restore a backup because the battery usage settings was hanging. When I unplugged after charging it still showed up as charging. That I could fix with a restart but then it wouldn't show what apps was used since last charge. Didn't note any significant improvement in battery duration the days I tried out your kernel.
BTW is there a way to remove your kernel without having to install a backup?

Are you still here?
Is this kernel compatible with Android 8.1? I am running LOS 15.1 but I want to use FloppyKernel because I loved it when I was running Nougat.
However, there is a problem. I can't afford to flash it because I am currently using my device a lot and there is no boot.img in your script. I tried to manually repack a boot image with your Zimage and hot-boot it from Fastboot but it stays stuck in the Motorola logo when I do it. I dumped LuK's Oreo kernel and it hot-boots fine. I'll also try to build your kernel from source.
I really hope that you didn't abandon this device too, but if you did then I will try to become a developer for this nice old phone.

Wattsensi said:
Is this kernel compatible with Android 8.1? I am running LOS 15.1 but I want to use FloppyKernel because I loved it when I was running Nougat.
However, there is a problem. I can't afford to flash it because I am currently using my device a lot and there is no boot.img in your script. I tried to manually repack a boot image with your Zimage and hot-boot it from Fastboot but it stays stuck in the Motorola logo when I do it. I dumped LuK's Oreo kernel and it hot-boots fine. I'll also try to build your kernel from source.
I really hope that you didn't abandon this device too, but if you did then I will try to become a developer for this nice old phone.
Click to expand...
Click to collapse
No item didnt work it causes Brock on 15.1 or anthther but 14.1

[Kernel][grus] Kowalski Kernel [ beta: XXX - stable: r1.9.3 ]

Ehm... hello everyone
Our phone is quite a little powerful beast, but Xiaomi really made a crappy job on optimizing it, right?
After unlocking the bootloader I felt the need to go back to my roots and get my hands dirty to fix the wrongs in the kernel they released. The phone felt slow and heavy, the battery barely lasted a day. I use my phone for my job and I need to be snappy, stable and last way more than a day. So I started tweaking, digging and experimenting and the result is this kernel that I'm releasing today, in an attempt to make our MI9SE a bit better for all those people who actually use this phone... as a phone...
This kernel is GSI / AOSP only. Don't flash it on Miui based roms unless you are suicidal or want to lose some features, in which case you're free to do as you please and I'm free to ignore your posts, right?
There will be, from time to time, experimental/unstable versions that I release for public testing (usually they're not harmful, but... ehm.... ok you get it) so watch out for the second post if you feel brave and want to be on the bleeding edge. Official kernels are released when the beta testing phase is done and 100% of the feedback is positive.
Don't ask for ETA or you'll be fish slapped... badly! Ignore this warning only in case a nasty bug slips in the release, then you can fish slap me
Ok, enough talk, let's get down to business now.
Features
* Compiled in release mode (all debug stripped)
* Removed all auditing
* Disabled modules support to avoid interference from Xiaomi vendor
* Battery friendly, performance aware
* DT2W support. If disabled the display and touchscreen will power down
* 3G modem small optimizations
* K-Lapse 5.0 support (thanks to tanish2k09 for this awesome piece of code)
* Flicker Reduction via heavily modified Exposure Adjustment module from Sony
* Boeffla Wakelock Blocker pre-configured to block most of the bad boys
* BFQ and CFQ I/O Schedulers
* Adreno Idler support (your gpu will thank me)
* Westwood TCP congestion algorithm enabled by default (and a lot more enabled)
* Support for NTFS (read only)
* Support for F2FS
* And loads more... yeah just ask or check my github
Q & A
Q: Battery !!! Why it's so baaaad ! My phone doesn't sleep !!!
A: Well, don't get it badly, it's not really my problem, is it ? 99.999% is an app you have installed that's preventing deep sleep... go ahead and install BetterBatteryStats, check the Partial Wakelocks and se what's killing your phone. Have fun
Q: App X crashes ! OMG all my data is gone !!!
A: Read again on top, not my fault, sorry. I try my best to give out a stable kernel, but "**** happens" and i can't control it...
Q: I get tons of bsods, my phone doesn't wake up from sleep, it freezes and omg... it just exploded !!!
A: No dmesg / logcat, no party. And please don't post messages like those in the thread if you're not ready to attach a log to the post.
Q: When will you enable gpu overclock, road runner speed mode or wile e. coyote immortality ?
A: Never... on a second thought... maybe... who knows ?
Q: When will you release the new version ? It's a week we're using the old one !!
A: Is it stable ? Then please allow me to fish slap you with a huge trout !
Downloads
All downloads for Kowalski Kernel will be linked in the second post AND in the thread when a new version is released and a changelog will be filed accordingly.
The downloads are labeled as "kowalski-XY-grus" where X can be either "r" for release or "b" for beta. Y is the version number. Eg: kowalski-r1.4-grus is a release, while kowalski-b4-grus is a beta version.
Source will be pushed to my github about 2 or 3 days after a release (or before if I'm not careful), to make sure that no major bugs are introduced in the public repository. You can find the magic code here
This kernel can be compiled with any clang 4.9.x that supports the aarch64-linux-gnu target, so if you want to compile it by yourself you'll have either to build your own toolchain, or use one of the many prebuilt ones (for example from aosp).
Please don't rip-off my work. Please don't kang this kernel. Please don't c&p from my github without proper credit. I'm a nice guy, but i will report you.
Little code of conduct for my threads is necessary: no drama, no OT. Oh and please don't message me on Telegram privately when we have this awesome platform where everyone can benefit from the Q&A.
Thanks
* Okita for the awesome job she made on the base kernel cleanup (this kernel is based on one of her first releases)
* Linus, well, for the linux kernel
* francescod for taking the risks of testing possibly harmful pre-releases
* qualcomm, because codeaurora is awesome!
* osm0sis, the one who allowed us mortals to provide flashable kernels without pain
Oh, I was almost forgetting... on a side note... i'm not really responsible if you decide to test it and your phone melts... right ?
XDA:DevDB Information
Kowalski Kernel, Kernel for the Xiaomi Mi 9 SE
Contributors
pengus77, okitavera, francescod
Source Code: https://github.com/pengus77/kowalski-grus
Kernel Special Features:
Version Information
Status: Stable
Current Stable Version: r1.9.3
Stable Release Date: 2019-09-13
Created 2019-07-25
Last Updated 2019-09-13

Version 1.9.3 release - Download here
* Implement display idle states and expose sysfs nodes to manage them
* qcacld-3.0: Add sme_power_save_api.h include
* Add toggle for disabling newly added USB devices
* sched: don't allow userspace to boost at will
* defconfig: disable misc device and rework a bit
* kernel: implement vDSO64 and vDSO32
* spi: increase timeout to make FOD more reactive
* Bump Linux version to 4.9.192​
Version 1.9.1 release - Download here
* updated ion, binder and uapi apis to latest upstream versions
* backported schedutil governor from 4.14 with a subset of improvements tree-wide
* backported qcacld-3.0 from 4.14 msm nicobar tree and cleaned it up​
Version 1.8 release - Download here
* reverted the update to the latest wifi driver
* disable ssbd mitigations
* mm:compaction: raise priority
* kernel:sched:fair: align periods to our kernel config (100Hz)
* techpack:audio: remove compat code
* mmage-writeback: tune values for better memory handling
* kernel: nasty hack to bypass VTS/VINTF checks
* defconfig: disable AUDIT,PROFILING,TRACING and MORE...
* kernel: build with -O3 optimizations
* defconfig: re-enable BFQ as default scheduler
* block: add zen scheduler
* binfmt_elf.c: use get_random_int() to fix entropy depleting
* net/wireguard: add wireguard
* PM: devfreq: Use high priority workqueue
* cpuidle: don't disable cpuidle when entering suspend
* gpu:drm:msm: convert all pr_info into pr_debug​
* Version 1.7 release - Download here
* Merged Linux v4.9.189 from upstream​
* Version 1.6 release - Download here
* Merged Linux v4.9.188 into MSM base
* Fixed a few wifi issues
* Fixed a possible memory leak in the ext4 driver
* Limited zRam to 1GB
* Rewritten defaults for blu_schedutil with an eye on power saving
* Disabled spammy audit logs
* Stripped all symbols from the kernel (smaller, speedier)
* Reverted an old commit in F2FS that was considered harmful​
* Version 1.5 release - Download here
* Merged Linux v4.9.187 from upstream
* Fixed K-LAPSE upper bounds and drafted a "saner" default target
* Reinstated VTS / VINTF compliancy​
* Version 1.4 release - Download here
* Pretty much initial release with all the goodies from OP after a month of testing...​
All the kernel tweaks can be edited as usual with any kernel management app (EX, FK, etc...)
About the Flicker Reduction system, if your ROM doesn't support it or if you want to tweak it a bit and you feel adventurous, you can play with these sysfs endpoints
* /sys/devices/platform/soc/soc:qcom,[email protected]/msm_fb_ea_min (the minimum amount of exposure added)
* /sys/devices/platform/soc/soc:qcom,[email protected]/msm_fb_ea_enable (kinda self explanatory, isn't it? 1 = enabled, 0 = disabled)
* /sys/devices/platform/soc/soc:qcom,[email protected]/msm_fb_ea_elvss_off_treshold (the brightness threshold under which the system is enabled)

Wow, finally a full battery and features oriented kernel. Great to see it for our little beast. And with no Miui support
I hope you don't fall in modern famous useless stuff as Overclock/Overvolting Cpu-Gpu and Overclocking display. Grus doesn't need it at all, at least now.
I'd like to thank you of course, for all of your hard work done. It was a pleasure to help just a little with testing!
After many test of various configurations I've come to these stable settings useful only if you're searching for some more battery juice, so, no high demanding games at all! Performances on daily light use, seem to me like the same as with stock values.
Cpu Governor: Blu_Schedutil
Freq small cores: 576-1516MHz
Freq big cores: 300-1536MHz
wq_power_saving: enabled
Gpu Governor: Simple_ondemand
Freq: 180-267MHz
Adreno Idler: active (should work only on MsmAdreno Governor, but I like to see it enabled anyway)
I/O scheduler: Maple
Readahead 384kb
Fsync: disabled
Tcp congestion algorithm: bbr or westwood
To maximize even more the battery saving use black/dark grey apps as much as possible, use the right brightness, turn off any fancy features as AOD, FOD, AmbientDisplay, PocketMode, every unused sensors, install AdAway, Greenify, use 2G when in Wi-Fi or 2G/3G/4G on mobile connection and pray for someone :cyclops:
All of these settings are fine on my device with my personal use and my personal apps, so, don't complain about bad behavior on your phone.

Which what GSI are you using your kernel? I'm on PE but it will be snappy to have your same experience... :fingers-crossed:

champagne66601 said:
Which what GSI are you using your kernel? I'm on PE but it will be snappy to have your same experience... :fingers-crossed:
Click to expand...
Click to collapse
Hey there, at the moment I'm on Floko because I need stability. Using it with latest xiaomi.eu vendor/firmware blobs and all is good so far
I know people using this on crDroid or Havok and no problems or issues are known so far.

Stupid question: What is different / advantage against Okita kernel?
I'm glad to see new and new kernels and ROMs for 9 SE. Thank you @pengus77

Does it work in miui rooms? Thanks

Fran Montero said:
Does it work in miui rooms? Thanks
Click to expand...
Click to collapse
Read the OP.

vecino said:
Stupid question: What is different / advantage against Okita kernel?
Click to expand...
Click to collapse
This is a fully debloated Kernel from Miui/useless/redundant stuff, so, for an only custom roms lover as me, it's perfect.
K-Lapse, Adreno Idler, unlocked frequencies and flickering reduction are the main visible points, with ofc more under the hood. I left OkitaKernel when it was perhaps on v4 build, so check it out what's changed recently on it.
While they're born from the same base, each Dev makes own customization, so it's up to you to try them both and choose the one who satisfies you better.
Finally I wanna thank again @okitavera for her dedication. Probably without her kernel I wouldn't have bought the 9 SE so fast :highfive:

@pengus77
I flashed your kernel ... is it working but after every restart I give this message: "Device has an internal problem. Contact the manufacturer for more information." Is it problém with firmware / vendor?

vecino said:
@pengus77
I flashed your kernel ... is it working but after every restart I give this message: "Device has an internal problem. Contact the manufacturer for more information." Is it problém with firmware / vendor?
Click to expand...
Click to collapse
Hi, yeah, it's absolutely normal and harmless. It's a standard thing Android *****es about on GSIs when the kernel is too "stripped" and can't neither debug it nor load modules and/or there is a mismatch between system and vendor props. Search for that message in XDA and you'll see that tons of people have the same "issue". It's nothing to worry about, the system will work just fine.
Some ROMs are more strict than others. I know Floko says that, while Havok doesn't.

Roger that - I will be keep testing.

Testing on havoc
Enviado desde mi MI 9 SE mediante Tapatalk

Kernel have in default min 576 MHz - is it so intentionally? Otika was 300 MHz if I'm not wrong. Doesn't this have a negative effect on higher consumption?

vecino said:
Kernel have in default min 576 MHz - is it so intentionally? Otika was 300 MHz if I'm not wrong. Doesn't this have a negative effect on higher consumption?
Click to expand...
Click to collapse
It's just the default to keep it a bit more responsive. Little technical explanation follows: When the phone is in suspend, the cores are disabled and the cpu goes in low power state, so the frequency doesn't really matter. When in active use, the energy and time required to reach a target frequency (when boosting on touch for example) is pretty high. Having a tiny higher min frequency actually lowers the power needed when a boost is required and the time to reach the target frequency is lower. When idling the energy consumption between 576 and 300 is basically the same and doesn't impact the battery life.
Of course the frequencies are unlocked, so you can set it back down to 300 if you feel more comfortable with it

Beta Release [ b1.5a ]
In the releases page on my github (and in the second post) I just pushed a little beta release.
Thanks @fereidooni for finding out a nasty bug occurring during hard memory copy operations .Will fix it soon, in the meantime ignore this version.
Changes:
* Adopted a drastically more power-efficient and reduced IOMMU implementation (your battery will say thank you)
* Cleaned up a few things (this will never end I think... sigh...)
* Disabled the MSM Performance min frequency override. Now YOU decide, not qualcomm.
Have fun

pengus77 said:
In the releases page on my github (and in the second post) I just pushed a little beta release.
Changes:
* Adopted a drastically more power-efficient and reduced IOMMU implementation (your battery will say thank you)
* Cleaned up a few things (this will never end I think... sigh...)
* Disabled the MSM Performance min frequency override. Now YOU decide, not qualcomm.
Have fun
Click to expand...
Click to collapse
Hi
I tried this version
Any video playing cause phone restarted
Thanks for your work

fereidooni said:
Hi
I tried this version
Any video playing cause phone restarted
Thanks for your work
Click to expand...
Click to collapse
Wow thanks mate, an adventurous soul that tested a beta version... gotta love this people
Anyway, just confirmed the problem and will soon get to fix it. In the meantime use the stable version if you want. It should be safe

pengus77 said:
Wow thanks mate, an adventurous soul that tested a beta version... gotta love this people
Anyway, just confirmed the problem and will soon get to fix it. In the meantime use the stable version if you want. It should be safe
Click to expand...
Click to collapse
Thanks mate
Sure I'm using stable version

I am using beta about 10 hors and I had only one problem with UI FC but after wipe cache and dalvik is all ok.