Guest lflint Posted April 12, 2013 Report Share Posted April 12, 2013 (edited) 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-dev....php?p=40212776 v0.6 available as of 2013/06/05. 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....dit?usp=sharing Stock kernel 10.4.15.1: https://docs.google....dit?usp=sharing Stone kernel v0.3 "OC": https://docs.google....dit?usp=sharing Stone kernel v0.3 "STD": https://docs.google....dit?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 June 5, 2013 by lflint Link to comment Share on other sites More sharing options...
Guest lflint Posted April 12, 2013 Report Share Posted April 12, 2013 (edited) Changelog ToDo: Possibly faster CPU & GPU overclocking, pending successful testing Lower brightness to save power Lower voltages for display GPU undervolt GPU freq sysfs interface WiFi undervolt Enable additional audio codecs: WMA, AAC, etc BLN? v0.3 - 2013/05/07 Based on ASUS source code v10.4.15.1 Two versions - OC & Standard Switched compiler from GCC 4.6 to 4.7 Further voltage tweaking Fixed CPU throttling Added InteractiveX v2 Governor - very good for properly setting CPU freqs across all cores Set default Governor to InteractiveX v2 GPU overclock to 487mhz - working 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, etc) - working Removed Sysctl syscall support Removed software controlled Adaptive Voltage Scaling (AVS) Removed adaptive voltage scaling (AVS) Removed Generic Dynamic Voltage and Frequency Scaling (DVFS) support Removed CPU frequency translation statistics details Reduced max CPU voltage back to 1.30v Re-enabled "Monitor thermal state and limit CPU Frequency" v0.2 Removed dual/quad versions - quad-core is running stably for me with revised voltages Added standard/low voltage versions, for anyone having trouble booting, please try the standard version Lowest CPU frequency set to 192mhz Android Logger re-enabled temporarily, for USB FastCharge troubleshooting CONFIG_SCHED_MC=n (not needed with HotPlugging CPU) CONFIG_SCHED_SMT=n (not needed) Disabled "Monitor thermal state and limit CPU Frequency" Increased max CPU voltage from 1.30v to 1.45v (always monitor your temperature when increasing the voltage/frequency!!) Further tuned CPU voltages Added Wheatley Governor, and set to default Disabled "Use MSM_DCVS for CPU/GPU frequency control" GPU overclock to 487mhz - not verified yet - I think some kind of ASUS lock may still be preventing this USB FastCharge (can be turned on with Kernel Tuner etc) - not verified yet - I think some kind of ASUS lock may still be preventing this Edited May 13, 2013 by lflint Link to comment Share on other sites More sharing options...
Guest lflint Posted April 12, 2013 Report Share Posted April 12, 2013 (edited) FAQ Q. My phone is running hot! A. This is usually related to the voltage being too high. Try lower voltage, and try to determine which frequencies are running hot for you. You may need to also restrict your max CPU frequency with SetCPU, System Tuner, Kernel Tuner, etc, if the frequency won't run stably on your phone. Q. CPU-intensive apps (particularly games) terminate abnormally after a bit of use. A. This usually means the voltage is a little too low for that frequency. Try to raise the voltage (only 12.5mv at a time) until you find a stable voltage, and let the rest of us know what value is best for you. Q. My phone won't even boot with this kernel. A. Sounds like the voltages are too low for you. Try the "STD" version, which uses voltages only slightly lesser than stock. Q. I want GPU overclocking, but I don't want CPU overclocking. A. Use the "OC" version, and use SetCPU, System Tuner, Kernel Tuner, etc, to set the max CPU freq you want. Q. Proximity sensor doesn't work during a call A. Working on it... Edited May 13, 2013 by lflint Link to comment Share on other sites More sharing options...
Guest gsep Posted April 13, 2013 Report Share Posted April 13, 2013 thanks for your work!!! Link to comment Share on other sites More sharing options...
Guest Hwaide Posted April 18, 2013 Report Share Posted April 18, 2013 Would love to try this out, when following download link, ending up in preview inside the zip... what am I doing wrong??? Trying from my padfone2 and chrome/stock webbrowser... Thanks for your work! :-)hplan:-) Link to comment Share on other sites More sharing options...
Guest Ivan12 Posted April 23, 2013 Report Share Posted April 23, 2013 The Stock Kernel updated to 10.4.15.1-0 version. If it is alright for you to update the custom kernel. Thanks a lot! Link to comment Share on other sites More sharing options...
Guest Biggreen Posted April 25, 2013 Report Share Posted April 25, 2013 (edited) Can you make not OV version of kernel too? And thx for you work =) Edited April 25, 2013 by Biggreen Link to comment Share on other sites More sharing options...
Guest tobi1449 Posted May 16, 2013 Report Share Posted May 16, 2013 Any chance you could look into PDroid-Integration? That would be awsome :) Link to comment Share on other sites More sharing options...
Guest SwiftDropkick Posted May 22, 2013 Report Share Posted May 22, 2013 Do you think it will be easy to enable USB OTG on the phone side of the Padfone 2? At the moment, only the Padfone Station supports USB OTG, but could this be solved by patching the kernel? Link to comment Share on other sites More sharing options...
Guest lflint Posted May 23, 2013 Report Share Posted May 23, 2013 Do you think it will be easy to enable USB OTG on the phone side of the Padfone 2? At the moment, only the Padfone Station supports USB OTG, but could this be solved by patching the kernel? Yep. Put it in today, and tested ok with a USB flash drive. I'll upload the new version on the weekend. Link to comment Share on other sites More sharing options...
Guest lflint Posted May 23, 2013 Report Share Posted May 23, 2013 Any chance you could look into PDroid-Integration? That would be awsome :) Not sure exactly what that does. Had a quick look on the web, and it seems to need older versions of Android? Link to comment Share on other sites More sharing options...
Guest VanillaDragon Posted June 2, 2013 Report Share Posted June 2, 2013 Thanx for kernel, im testing it now. There have bug with proximity sensor - it not work on this kernel. With stock al OK, but after flash Stonev0.3 "STD" sensor not turn on in call. Can you fix it? Link to comment Share on other sites More sharing options...
Guest lflint Posted June 5, 2013 Report Share Posted June 5, 2013 Thanx for kernel, im testing it now. There have bug with proximity sensor - it not work on this kernel. With stock al OK, but after flash Stonev0.3 "STD" sensor not turn on in call. Can you fix it? Was fixed in v0.4. Currently up to v0.6, can be found at: http://forum.xda-developers.com/showthread.php?p=40212776 Link to comment Share on other sites More sharing options...
Guest VanillaDragon Posted June 5, 2013 Report Share Posted June 5, 2013 oh, thanx ^_^" on xda bit hard find something, if no forum on device >_> Link to comment Share on other sites More sharing options...
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