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[Kernel] Stone custom kernel for PF2 OC/UV/etc
Moderators: Marc Schattorie, ctys2ard, oroo708, JHS_NL, RaithK, allram, Frits
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lindsaytheflint
Fri Apr 12 2013, 01:00PM
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Joined: Fri Apr 12 2013, 12:03PM
Location: Australia
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Presenting the Stone Kernel for Padfone 2, a custom kernel designed to get a little more out of the phone.

DISCLAIMER: As per all custom kernel disclaimers, while I do test this kernel on my own device, I'm not responsible for you voiding your warranty, or any damage/bricking/weirdness that may occur to your Padfone. If you're not comfortable with this, do not proceed.



Latest version can be found at:
http://forum.xda-developers.com/showthread.php?p=40212776



v0.3
Main features:
Based on ASUS source code v10.4.15.1, compatible with Android 4.1.1 stock PadFone2 firmwares
Lowest CPU frequency set to 192mhz
CPU frequency locked to 192mhz-1512mhz during boot
Undervolted to save power & reduce heat
Undervolt interface (compatible with System Tuner, Kernel Tuner, etc)
Disabled "Monitor thermal state and limit CPU Frequency"
Additional CPU Governors: Wheatley, InteractiveX v2
Set InteractiveX v2 CPU Governor to default instead of Performance, to lower battery consumption, maintain snappy performance, and improve CPU freq config
GPU normal freq set to 128mhz to lower battery usage (will still scale upto 487mhz when busy)
Simple IO Scheduler (SIO) added, and set as default
Increased min/max read-ahead values from 16/128 to 32/1024
USB FastCharge (enable using Kernel Tuner, sysfs, etc)
Disabled Android Logger to reduce IO</end> and improve performance (temporarily reverted)
OC version: Overclocking upto 1.72ghz for a bit faster performance
OC version: GPU overclock to 487mhz

Currently two versions:
"Dual" = 2 max CPUs (reduced from 4 to save power, and improve overclocking stability)
"Quad" = 4 max CPUs (as per stock, but my tests indicate that the "Dual" version will provide better performance and stability)
"Standard voltage" - Only slightly lowered voltage, for those wanting a only-slightly-lowered voltage, close to stock. Usually more stable.
"Low voltage" - Tweaked voltages that are stable on my PF2. You may need to raise/lower slightly to achieve the best result on your phone.
"OC" = CPU OC to 1.72ghz, GPU OC to 487mhz. Lower CPU voltages.
"STD" = No OC. Only slightly lower CPU voltages than stock.

Minor tweaks:
Replace Wifi modules with AOSP versions (needed due to the way the stock modules were compiled by ASUS)
Disabled swap
Disabled "Compile the kernel with debug info"
Disabled Debug memory initialisation
Disabled Magic SysRq key
NTFS in kernel (instead of module)
FAT support
Disabled "Use MSM_DCVS for CPU/GPU frequency control"


Download:
Stock kernel 10.4.12.24: https://docs.google.com/file/d/0ByOiY1XD_cLvNVFwVi1Yc3lmS2M/edit?usp=sharing
Stock kernel 10.4.15.1: https://docs.google.com/file/d/0ByOiY1XD_cLvVU5KWkJqZzVrU00/edit?usp=sharing
Stone kernel v0.3 "OC": https://docs.google.com/file/d/0ByOiY1XD_cLvd28ybVB2MHhXTXc/edit?usp=sharing
Stone kernel v0.3 "STD": https://docs.google.com/file/d/0ByOiY1XD_cLvUnI4Z01YYzZBY1k/edit?usp=sharing

Installation:
1. Copy StoneK_A68_v0.3_OC.zip or StoneK_A68_v0.3_STD.zip to /sdcard/ via USB.
2. Copy StockKern_A68_10.4.15.1.zip to /sdcard/ via USB, in case you have trouble booting, and need to uninstall.
3. Boot into TWRP or CWM Recovery.
4. Perform backup of at least your "Boot" partition.
5. Install zip from step 1.
6. Reboot.

Uninstallation:
1. Copy StockKern_A68_10.4.15.1.zip to /sdcard/ via USB.
2. Boot into TWRP or CWM Recovery.
3. Install zip from step 1.
4. Reboot.

[ Edited Wed Jun 05 2013, 03:46AM ]
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4 User said Thanks to lindsaytheflint for this post :
 SparkyRih (12 Apr : 14:16) , boyjorge (12 Apr : 15:27) , Cognicom (13 Apr : 15:16) , Rapis (13 Apr : 19:56)
Woody
Fri Apr 12 2013, 01:53PM
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Joined: Wed Apr 10 2013, 05:02PM
Posts: 27
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page is dead
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lindsaytheflint
Fri Apr 12 2013, 02:03PM
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Joined: Fri Apr 12 2013, 12:03PM
Location: Australia
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Fixed.
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SparkyRih
Fri Apr 12 2013, 02:18PM
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Now I really wish I had a PF2, because this is the fun stuff
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boyjorge
Fri Apr 12 2013, 03:27PM
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thanks for this.
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Woody
Sat Apr 13 2013, 01:37PM
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I know this is early days, but can this kernel be adjusted to have the fast usb charge option, like on Franco Kernels and Kernels for the Nexus 4.

Basically when the device is connected to usb it reads as AC instead of DC, hence it can charge quicker
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lindsaytheflint
Sat Apr 13 2013, 02:18PM
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RE: USB Fast Charge - It's on my ToDo list.
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2 User said Thanks to lindsaytheflint for this post :
 Woody (13 Apr : 17:20) , Rapis (13 Apr : 19:56)
Woody
Sat Apr 13 2013, 05:20PM
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Nice one
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hwesun
Thu Aug 22 2013, 11:05AM
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Could you tell me the environment you compiled the kernel??
Like toolchain, deconfig, OS version..etc.
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Gojira
Sat Sep 07 2013, 05:42PM
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possible to makje a custom kernel for the padfone infinity ?

for overclocking etc
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khashayar
Wed Nov 13 2013, 07:48PM
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With this kernel ,can port cyanogenmod to padfone 2?
Can build same kernel for padfone infinity?
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farhadelyasi
Thu Sep 04 2014, 10:22AM
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Stock kernel 10.4.12.24: https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stock kernel 10.4.15.1: https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stock kernel 10.4.16.8: https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.1 "Dual": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.1 "Quad": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.2 "Standard voltage": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.2 "Low voltage": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.3 "OC": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.3 "STD": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.4 "OC": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.4 "STD": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.6 "OC": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.6 "STD": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.7 "OC": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.7 "STD": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.8 "STD": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.8 "OC": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.8 "PS": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.9 "STD": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.9 "OC": https://docs.google.com/file/d/0ByOi...it?usp=sharing
Stone kernel v0.9 "PS": https://docs.google.com/file/d/0ByOi...it?usp=sharing

Not Opening In My system. please help
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