[PORT][KERNEL] Velocity Kernel • r7 • June 6 - Xiaomi Mi 5X ROMs, Kernels, Recoveries, & Other De

Velocity Kernel • Mi 5X Installer Port
by kdragon and tytydraco​
Introduction
Velocity Kernel was made to provide the best possible experience on all devices. We strive to provide the perfect balance of performance and battery life. Features are also plentiful, but features that nobody uses will not be included. We also completely debloat all our kernels and aim for small sizes relative to other kernels. Due to the small size and careful debloating, boot time is also improved.
Compatibility
This kernel ZIP supports only Mi A1 ported custom ROMs. Simply flash the kernel after flashing your Mi A1 ported ROM like my [PORT][OFFICIAL][ROM][8.1][Pixel Experience][07/06/18]
Features
​ ​ ​ ​ • Latest upstream Linux LTS 3.18.112
​ ​ ​ ​ • CPU underclock to 307 MHz to save battery
​ ​ ​ ​ • CPU overclock to 2208 MHz for a good performance + battery balance
​ ​ ​ ​ • Max performance overclock: 2400 MHz
​ ​ ​ ​ • GPU overclock to 855 MHz
​ ​ ​ ​ • Undervolted CPU on lower frequencies
​ ​ ​ ​ • Optimized GPU governor
​ ​ ​ ​ • Improved 3.5mm jack output
​ ​ ​ ​ • Energy Aware Scheduling
​ ​ ​ ​ • CPU governors: elementalx, zzmoove, yankactive, relaxed, alucard, nightmare, chill, blu_active, darkness, intelliactive, bioshock, impulse
​ ​ ​ ​ • EAS CPU governors: electroutil, schedutil, pwrutilx, sched, helix_schedutil, energy-dcfc, alucardsched, darknesssched
​ ​ ​ ​ • IO schedulers: fiops, zen, sioplus, row, tripndroid, maple, cfq, noop, deadline, bfq
​ ​ ​ ​ • Updated ExFAT drivers that support TRIM (faster long-term performance)
​ ​ ​ ​ • Compiled with latest DragonTC Clang 7.0
​ ​ ​ ​ • Polly optimizations
​ ​ ​ ​ • Full flashable zip is only 9.4 MB, compared to other kernels at 14+ MB
​ ​ ​ ​ • Faster boot due to removing unnecessary drivers and boosting CPU speed
​ ​ ​ ​ • Higher touchscreen scanning frequency
​ ​ ​ ​ • Quick wakeup and input boost for faster wake
​ ​ ​ ​ • Fingerprint boost for faster fingerprint wake
​ ​ ​ ​ • Updated timer subsystem
​ ​ ​ ​ • 100 Hz timer to maximize performance
​ ​ ​ ​ • Ultra Kernel Samepage Merging (UKSM)
​ ​ ​ ​ • ZRAM compressors: lzo, lz4, lz4hc, zstd (higher compressing)
​ ​ ​ ​ • Reduced pop when plugging headphones in
​ ​ ​ ​ • Intellithermal 3.0
​ ​ ​ ​ • KCAL advanced color control
​ ​ ​ ​ • Wakelock blocker with predefined list
​ ​ ​ ​ • Customizable CRC check and Fsync
​ ​ ​ ​ • Hotpluggers: autosmp, thunderplug, blu_plug, intelliplug, thunderplug, lazy_plug, msm_hotplug
​ ​ ​ ​ • Adreno Idler
​ ​ ​ ​ • Backlight dimmer (extremely low brightness)
​ ​ ​ ​ • Adreno Boost
​ ​ ​ ​ • Sound output control
​ ​ ​ ​ • Forced USB fast charge
​ ​ ​ ​ • Westwood TCP congestion control
​ ​ ​ ​ • High performance audio
​ ​ ​ ​ • Improved scrolling performance
​ ​ ​ ​ • Various optimizations from Google Pixel kernels
​ ​ ​ ​ • ChaCha20 crypto algorithm, NEON accelerated
​ ​ ​ ​ • Good battery life
​ ​ ​ ​ • Fast and cryptographically secure random data source based on NEON ChaCha20 (faster than frandom)
​ ​ ​ ​ • Tuned interactive governor
​ ​ ​ ​ • Works on stock and custom ROMs
​ ​ ​ ​ • Vibration intensity control
​ ​ ​ ​ • Wakelocks blocked by default
​ ​ ​ ​ • Double tap to wake
​ ​ ​ ​ • Qnovo charging driver for temperature regulation
​ ​ ​ ​ • Latest WireGuard VPN snapshot
​ ​ ​ ​ • Updated crypto algorithms
​ ​ ​ ​ • Removed legacy drivers
​ ​ ​ ​ • Improved boot time
​ ​ ​ ​ • Optimized and updated touchscreen driver
​ ​ ​ ​ • Ext4 optimizations
​ ​ ​ ​ • Transparent hugepages
​ ​ ​ ​ • Updated zsmalloc
​ ​ ​ ​ • Sweep2wake, sweep2sleep, and doubletap2wake gestures
​ ​ ​ ​ • Updated memory management, mutex, locking
​ ​ ​ ​ • Updated Wi-Fi drivers
​ ​ ​ ​ • Explicit prefetch instructions
​ ​ ​ ​ • Optimized memory page copying
​ ​ ​ ​ • Countless other improvements and optimizations
​ ​ ​ ​ • Transparent Project Treble: one kernel zip supports all
​ ​ ​ ​ • Flash and forget - sensible defaults are set
Downloads
Google Drive
How to install:
- Unlock your bootloader
- [Optional] Flash A1 Oreo Firmware
- Flash Oreo TWRP modded
- Flash Mi A1 ported ROM zip through TWRP (my [PORT][OFFICIAL][ROM][8.1][Pixel Experience][07/06/18])
- Flash port Velocity Kernel from Download section
- In TWRP go to Advanced->File Manager to replace a1oreo.dtb in /sbin/a1oreo.dtb with this one
- In TWRP go to Advanced->Terminal->File Manager to check mode 777 for a1oreo.dtb
- In TWRP go to Advanced -> Terminal -> Write "a1to5x" -> press Enter
- Reboot to System
[Optional] Install Spectrum and select predefined profile
Credits
Without the help and contributions of these people, this kernel would not exist:
​ ​ ​ ​ • nathanchance: upstreaming, kbuild commits, Flash kernel, many other commits
​ ​ ​ ​ • ghpranav: MetaPhoenix kernel, wake gestures on kernel_tissot (savoca, showp1984, ryan-andri), EAS, help, and more
​ ​ ​ ​ • franciscofranco: config options, fsync control, many other commits
​ ​ ​ ​ • Flex1911: Void kernel, base commits
​ ​ ​ ​ • flar2: old wake gestures, many other commits that shaped the kernel
​ ​ ​ ​ • frap129: Maple I/O scheduler (base for Marrow), Electron kernel, many other commits
​ ​ ​ ​ • Alek Dev: overclocking values for CPU and GPU, undervolting and overvolting values
​ ​ ​ ​ • nine7nine: EAS governors, EAS commits, optimized ext4 fsync, many other commits
​ ​ ​ ​ • gougous3: help with tuning Spectrum profiles, helix_schedutil tunables
​ ​ ​ ​ • Everyone else mentioned in Git history
Enjoy!
Contributors
kdragon, tytydraco
Kernel Special Features:
Version Information
Status: Stable
Current Stable Version: r7
Stable Release Date: 2018-06-06

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Looks great
Can I flash it to unofficial lineageos15?

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Like I said in OP, you can flash if you use rom ported from Mi A1.

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How i can disable DoubleTap2Wake??
Edit:
A lot of UI lag... Battery life is really bad. I think the ported Franco Kernel is better.
Sorry...

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Squadalah said:
How i can disable DoubleTap2Wake??
Edit:
A lot of UI lag... Battery life is really bad. I think the ported Franco Kernel is better.
Sorry...
Click to expand...
Click to collapse
1. DoubleTap2Wake: use KernelAuditor or similar tool to enable/disable it
2. You install Spectrum app to set kernel developer's pre-tuned profile. I currently use "Balance" profile and it's good for my daily use :laugh:
3. Franco Kernel port has led notification bug. Check my attachment to try at your own risk

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How is it SOT with Balance Profile?
Becouse with FK i can easily reach 8h SOT.
(LED Notification Bug isn't a problem for me)

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@bragon01, how to install this in an existing ROM?

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adioph said:
@bragon01, how to install this in an existing ROM?
Click to expand...
Click to collapse
If you install any MiA1 ported ROM, so you can do following:
1. Do dirty flash the ported ROM again (do not wipe anything)
2. Flash the kernel
3. Write "a1to5x" command with Aex12's modded TWRP and reboot

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I've never really used a modified rom. I have currently installed the rom cover of oreo in my 5X. Is it really worth it? Are the improvements implemented to the detriment of other things such as unexpected failures or errors?
Greetings and thanks for the post

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I'm using A1 ported rom. ?
https://forum.xda-developers.com/mi-5x/development/rom-android-one-mi5x-t3760048
I flashed A1 oreo firmware (Fastboot) before that rom. After I have flashed the kernel and tried a1to5x terminal command, it gave me the following error;
Installed rom is not from A1 ( something like that ) always staying at the first logo during boot.
Anything I'm doing wrong?

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ninenine2009 said:
I'm using A1 ported rom.
https://forum.xda-developers.com/mi-5x/development/rom-android-one-mi5x-t3760048
I flashed A1 oreo firmware (Fastboot) before that rom. After I have flashed the kernel and tried a1to5x terminal command, it gave me the following error;
Installed rom is not from A1 ( something like that ) always staying at the first logo during boot.
Anything I'm doing wrong?
Click to expand...
Click to collapse
Flash ROM zip --> flash kernel --> write "a1to5x"

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Led bugs and ui lag is caused from dts from aex recovery.
I fixed this bugs using original moded dts from velocity.
And i have 0 bugs

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xemisxu said:
Led bugs and ui lag is caused from dts from aex recovery.
I fixed this bugs using original moded dts from velocity.
And i have 0 bugs
Click to expand...
Click to collapse
Great to hear this. I have just modded base.dtb and it works well!

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bragon01 said:
1. DoubleTap2Wake: use KernelAuditor or similar tool to enable/disable it
2. You install Spectrum app to set kernel developer's pre-tuned profile. I currently use "Balance" profile and it's good for my daily use :laugh:
3. Franco Kernel port has led notification bug. Check my attachment to try at your own risk
Click to expand...
Click to collapse
Hi
When I installed spectrum an error syas that spectrum doesn't
support the kernel.... Could you tell me how did you activate it?!
Thanks in advance

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bragon01 said:
Great to hear this. I have just modded base.dtb and it works well!
Click to expand...
Click to collapse
What is it dtb? How i can mod base.dtb?

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jdki666 said:
Hi
When I installed spectrum an error syas that spectrum doesn't
support the kernel.... Could you tell me how did you activate it?!
Thanks in advance
Click to expand...
Click to collapse
It's strange to me at r7. Please go to the OP and flash again cause I updated the port

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Squadalah said:
What is it dtb? How i can mod base.dtb?
Click to expand...
Click to collapse
Please go to OP for updated port as requested

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can I use this kernel with AEX Asop 5.7 rom?

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Great kernel
I followed the op
Chmod the a1oreo.dtb etc
Flash everything .
Work great, no bug at all atm
Perfect for dialy use
Currently using battery mode on spectrum
I checked the kernel auction , there are lots of settings to play with . Thanks for this awesome ports , hopefully you will port more custom rom and stuffs later soon:good:

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t y
hi. kernel is perfect. and it works with spectrom. but how i can control frequency of cpu and gpu manually?
pls answer