Motorola Droid :: Custom Kernel Without Set CPU?
Jul 15, 2010
So I finally rooted my droid, installed BB 0.4 and from what I understand it comes with an 800 MHz kernel. Fair enough but lets say I want 1 GHz. I'm already noticing that I get slightly less battery life with this than with stock 2.1, so would the "low voltage" or "ultra low voltage" Chevy kernels provide me with more battery life? I know I should probably get SetCPU, but I don't want to constantly have to manage clock speeds manually and I don't know what profiles to set / what's safe and what's not safe and whatnot.If I DON'T install SetCPU, will the phone take care of it by itself and slow the clock down when it's not doing intense tasks and so forth? Is SetCPU really necessary with a kernel or is it just for extra control for super power users?
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Jul 26, 2010
Just like the title says, I'm at the laundrymat on my phone so I didn't have the option to search the forums. I wiped the data, and did a back up. But I would like to use chevys kernel vs a p3, just my preference.
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Nov 18, 2010
Does anybody know if the new desktop kernel patch written by Mike Galbraith can be applied or modified to be used in the android kernel?
Tiny Linux Kernel Patch Delivers Huge Speed Boost - PCWorld Business Center
I haven't messed around with android kernels yet, but I have applied it to my current Ubuntu 10.10 system and you can see the difference. Its like night & day!
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Feb 21, 2014
I just went through the process of compiling a custom ROM and they used a stock kernel. I would like to incorporate a different kernel when I compile and instead of the stock. I know I could compile them separately and have them flash together but I want one zip to flash. Just would like to go through the process to learn.
what I have to do when compiling?'
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May 20, 2010
I currently have bekit 1ghz kernet installed, but I was interested in trying out some other kernels. Can I just install them via Rom Manager over the first kernel? Or is there some kind of uninstall process I should use first?
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Sep 23, 2010
I was wondering if I can flash Netarchy Toastmod Beta: 4.1.9.1 w/HAVS on this newly released OTA rom from XDA? I don't like how the stock kernel has been acting since I installed it. Would this be ok to do?
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Sep 23, 2010
I use Baked Snack 1.7 and I tried the deodexed version of the OTA but noticed no change. Infact I found the OTA would stutter sometimes when scrolling. Also compared to CM6 and Neterchy kernel 4.1.9.1 I don't see it being same or better besides it being official. I know pretty soon the devs will have their own version but for now I don't see a reason to update.
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Aug 17, 2010
Id love to run netarchys to overclock and unlock fps. Is it done the same way as flashing a rom? in recovery I mean.
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Nov 5, 2010
Issue is that I freeze at any speed over 604 max (via Setcpu). Tried setting higher speeds as a charge profile to see if being triggered would change yet didn't. I have done nothing with advanced menu as I have found nothing posted referencing it netting higher speeds. I am rooted, started with zanfur kernel, switched to a conap kernel (bfsv6), both with same results. Did dalvik wipe (i am running amon ra) then went back to zanfur kernel to try again, same results. What am I missing? If this is just equipment limit then what's the result of flashing a custom Rom with default clocks of 710+++?
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Aug 27, 2010
I installed the latest version of fresh last week and im loving it... My battery life is amazing now. I was just wondering if there is a big difference in performance between Fresh with the stock kernel & fresh with a custom. Did i half-ass it by only installing the new rom with no kernel? what about that set cpu app that people were using with unrevocked when the evo came out... Anyone using that still with their custom roms or is it unnecessary?
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Aug 4, 2010
They tell me this will change again when the Droid X and Samsung Galaxy get 2.2 - I wouldn't know. Until then, here's our moment in the sun. Made this using the Quadrant benchmark, free from the Market, using a the stock rooted 2.2 rom and the netarchy-toastmod 3.7.6c kernel with the 30 fps cap lifted. No over-clocking, no hair-on-fire super tweaks, no killing every process to tweak the benchmark - just downloaded and run, the number on the bar says 1165.
EVO-Froyo-fast.png
The Nexus One 2.2 at the top uses the exact same processor (aside from the radio-control circuit) as our EVO. I attribute its higher score to the fact that it's sleeker and not running Sense. I happen to like Sense so I don't care.
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May 3, 2013
I would like to flash the Franco kernel do I need a custom ROM to do it?
Galaxy Nexus using Android
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Sep 26, 2013
how to make custom kernels .....
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May 26, 2012
I try flashing a kernel but it show this.
FAILED (remote: The Device must be rooted first)
finished. total time: 0.001s
I already rooted my phone so what should I do?
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Mar 17, 2013
So is there any custom rom and kernel for the little-known HTC Desire VC? My device lags with sense so i need to root it and put on some lighter OS ASAP..
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Mar 3, 2010
I have vanilla linux kernel version 2.6.27. I want to apply android specific patches and convert it to android linux kernel 2.6.27. Where can a user find the patches to convert a normal vanilla kernel into android kernel?
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Apr 19, 2010
Any thoughts to when we might see overclocking? How much over clocking can this phone safely have? I know it has to do with a custom kernel but what is the holds back of making it custom?
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Jul 17, 2010
Since I am just an average Joe with all this android stuff I didn't wanna get to deep in the process of rooting my phone so I went with Unrevoked3, now since their claiming you can flash custom ROMs I was wondering if anyone knows how to accomplish this in a safe and easy way.
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Jul 2, 2010
So I was under the impression that you could use ROM manager or ClockWork mod to install a custom kernel that I had downloaded to my SDcard. I downloaded a low-volt, overclock kernel and I have discovered that I don't quite know to flash it to my phone.
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Jul 18, 2010
So I rooted for the first time today, and tried to install Hydra Kernel's #1 & #3 kernels. The system seems completely stable with each kernel, except when I open the Camera app, the camera view is completely blank. Almost as if something was blocking the lens. Then when I try and take a photo, it locks up. I tried closing all apps, and restarting the camera, but this didn't work. Once I run a Nandroid restore prior to installing the kernels, the camera works fine.
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Sep 12, 2010
I made this video to show the difference between a stock Evo and one that has the FPS uncap via a custom kernel, in this case, netarchy-toastmod 4.1.7. See my sig for the kernel download link. I shot this at 60fps and 1080p in order to try to capture the difference in framerate before and after. 720p max on youtube. I believe it's the sharpest video out there showing off the difference. Look for two things: scrolling smoothness, and finger tracking. Tracking is the ability of the phone to keep the screen "stuck" to the finger. The better it does this, the better the tracking, and it makes the phone feel very responsive to your commands.
To many people, the difference is night and day. To some, they don't see/feel the difference. I find that hard to believe, which is why I made this video. The truth is out there.
TIP: Click on the video below and watch it from youtube. It's larger and sharper there.
YouTube - HTC EVO: 30FPS uncapped w/ custom kernel - comparison w/ stock
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Apr 26, 2012
I'm trying to make a custom kernel for the Samsung Gravity SMART using sources from the unofficial CM9 port for the Gio/Ace (which both use very similar hardware to the Gravity Smart). What I've succeeded at so far:
1) Acquiring the source, both for the CM9 kernel and for the stock Froyo kernel
2) Searching for the device-dependent references in the stock kernel
3) Porting those changes over to the CM9 kernel
4) Getting everything to actually compile
5) Acquiring the stock CM7.2 source
6) Creating device makefiles (i.e. BoardConfig.mk, etc)
7) Building CM7.2 using kernel built in step #4
8) Putting the various img files into an Odin-compatible .tar.md5
9) Actually flashing to the phone.
And for all that work, I got.. a soft-bricked phone (fortunately, I have an Odin file for stock firmware). The phone boots to a SAMSUNG logo (not flashing/throbbing). how the heck do I figure out what's actually failing? Is there a bootloader to unlock, and if so how do I unlock it?
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Apr 30, 2012
I successfully installed Humberos JP2, everything I need works fine and it is rooted, but I cant get 3G connection, my Galaxy Tab is the P1000L from Telcel.
The phone is working fine, WiFi fine, but no 3G.
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Aug 30, 2013
Acer has released the source code of stock kernel.There are Custom kernel for our Iconia B1-A71?
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Oct 23, 2012
So I've been looking into flashing custom kernels, and I can't seem to find an answer to this question. Basically, I'm wondering if the kernel remains after installing a new nightly, or do I have to reflash the kernel every time the ROM updates?
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Mar 9, 2012
Last week, I played around with getting a custom recovery built for INQ Cloud Touch..
After compiling - flashing recompiling re-flashing for almost a week and on the verge of giving up ...
I realized, searched and found flash_image ... come to find out custom compile of recovery was fine, fastboot did not like my device and wasn't flashing it properly.
So flash_image got the custom recovery working as suppose to, able to backup/restore ... Flash roms.. however there are no roms.. best i could do was try roms from devices close to this one, with no luck!
So i decided i would try my hand at making a 2.3.7 gingerbread rom. Of course stock is froyo 2.2.1 and before i can make the rom.. i need a kernel for gingerbread. So I got the cm-kernel source using this guide:
[URL] .....
[EDIT]
pulled my .config file using both
/proc/config.tgz
and the included script to pull it from the boot.img
[/EDIT]
Now, i been trying to get kernel compiled for the last 5 days.. and like i said, no lack of searching and reading... Had first error, forgot what it was now, but i got it fixed and compile went on.
Code:
LD .tmp_vmlinux1
arm-eabi-ld: no machine record defined
arm-eabi-ld: no machine record defined
arch/arm/mach-msm/built-in.o: In function `parse_tag_msm_partition':
[Code] ......
I have a notepad full of things i have enabled/disabled and restored to original trying to find what is missing or shouldn't be there!
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Feb 15, 2010
I downloaded the custom gumbo kernel and I have no idea how to put it on my hero (fresh 1.1) I need a step by step on doing this.
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May 19, 2010
[Kernel - DE03] joeykrim-SDX - v0.5 - May 19th 2010
Joey had it out 5-6 hours after source was released this contains Numus' battery code and more.
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Mar 15, 2010
First off I want to thank these Dev. for there hard work.
Kam187, Mastermind278, droiddev, mobileband, My420Time, rkhalil2009, Nu11u5
Don't extract the file(s) from the tar that you download, the file that you download is what you need. Load Into the PDA setting in ODIN Flasher!
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Aug 30, 2013
implementation of undervolt in the source of a custom kernel for my Galaxy Ace II X (GT-S7560M)?
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