Kernels - G2 and Desire Z General

I was just wondering about the kernels for CM7, it seems like every other week pershoot comes out with a new kernel, what's the advantage of flashing the new kernels?
___________________________
Sent from my T-Mobile G2 using XDA App
Android 2.3.3
OC'd to 1017 Mhz
CyanogenMod 7.0.0 Stable
ClockworkMod Recovery 3.0.2.4

Battery life, performance and under the hood stuff mostly. Pershoot is UV'd really low so you'll get better battery life. It's smooth as butter too. Flippy's is just a monster.

So, we can flash a new kernel, when we already have a CM. I'm on CM7, can a flash a pershoot kernel still? Would I have to wipe data, and re-flash CM7, then the kernel?

Just dalvik and cache if anything. You'll be safe with Pershoot's kernel if you're running anything that came out after nightly #31. I'm not sure about the G2 Fast kernel but it might be the same way. That's when the new gpu drivers came out.

Ok, that sounds good, better battery life is always worth it.
___________________________
Sent from my T-Mobile G2 using XDA App
Android 2.3.3
OC'd to 1017 Mhz
CyanogenMod 7.0.0 Stable
ClockworkMod Recovery 3.0.2.4

Honestly i have found that Flippys kernel includes the powersave governor, using that with a screen off profile in set cpu is a HUGE battery saver, as long as when the screen is on your not clocked too high cause then it defeats the purpose.. .. not to mention it includes the ability to well.. go fast..

Related

Cyanogenmod 6.1 Overclocking?

I'm running CM 6.1 on my hero cdma and was wondering how to overclock it. I know I've seen forums on here about the same subject but the ones I've seen haven't helped at all. Can someone show me how to overclock mine past 528 mhz?
You're already OC'd to 691mhz if you are running CM6.1.
PieM0nk said:
I'm running CM 6.1 on my hero cdma and was wondering how to overclock it. I know I've seen forums on here about the same subject but the ones I've seen haven't helped at all. Can someone show me how to overclock mine past 528 mhz?
Click to expand...
Click to collapse
As far as I know, CM 6.1 already has an OC'd kernel.
If you want a different one thats better, stable, all around amazing go HERE and download Decad3nce's stable kernel (or whatever suits your needs) and flash it <--- I would do this
If you download Deca's mau5 themed rom or AOSP they both are OC'd with Deca's kernel.
Or you can get SetCPU from the Marketplace (or here) and it will overclock you're current kernal. It has different settings for power or performance. I didn't notice much of a difference and it gave me a couple problems on the power saving mode.
kyouko said:
As far as I know, CM 6.1 already has an OC'd kernel.
If you want a different one thats better, stable, all around amazing go HERE and download Decad3nce's stable kernel (or whatever suits your needs) and flash it <--- I would do this
If you download Deca's mau5 themed rom or AOSP they both are OC'd with Deca's kernel.
Click to expand...
Click to collapse
I think i will do that. Except I'm just confused by the instructions on that link. Could you try to clear that up for me?
PieM0nk said:
I think i will do that. Except I'm just confused by the instructions on that link. Could you try to clear that up for me?
Click to expand...
Click to collapse
All you do is flash it from recovery, as the instructions say.
is there a difference in performance/efficiency between CM 6.1+setCPU to overclock to 768mhz vs. using CM 6.1 with deca's modded 768mhz kernel?
kfreshx said:
is there a difference in performance/efficiency between CM 6.1+setCPU to overclock to 768mhz vs. using CM 6.1 with deca's modded 768mhz kernel?
Click to expand...
Click to collapse
AFAIK, the stock cm kernel will not oc to 768. That may have changed, but IMHO, deca's kernels are better. He's tweaked them to run smoother and more efficiently. Also, I would suggest the batt tweak instead of setcpu.
-----
Sent from my CDMA Hero. I got some hot Froyo-on-Hero action here!
user7618 said:
AFAIK, the stock cm kernel will not oc to 768. That may have changed, but IMHO, deca's kernels are better. He's tweaked them to run smoother and more efficiently. Also, I would suggest the batt tweak instead of setcpu.
-----
Sent from my CDMA Hero. I got some hot Froyo-on-Hero action here!
Click to expand...
Click to collapse
Im new to overclocking, I know what it basically is but. I just flash decas kernel from recovery and then what? Is it done? Also if it kills my battery how do I remove it?
Sent from my HERO200 using Tapatalk

[Q] SETCPU

Hey, quick question: I am on mytouch 4g cm7 ROM
What is a safe max to set the overclocking at? Obviously I don't want to burn the chip, but I want to make it as fast as possible. I have LauncherPro, currently my max is at 1.4, but sometimes it lags when I gesture to expand home screens.
I have 7 Home screens, all of them have 1 or more widget..
Thanks
1.5 is a good speed but you really wanna avoid charging when its set that high. so when charging set it to 1.2. Also what Kernel are you using? Defaults on Faux123 ASOP kernel should do well. I'n still on T-Mo stock and i run defaults with Faux123 Sense Kernel and i have no lag at all so CM7 whit its optimized code and no bloat it should run like a dream with one of his kernels, no OC Needed
Edit: corrected Link
http://forum.xda-developers.com/showthread.php?t=957267
Will the Kernel you linked to work with CM7 rc3? It only mentions CM6
Nm, Cm7 is the gingerbread...see it..got it, thanks!
I kept mine at 1.2ghz. Never gave me a problem.
sent from the rooty tooty fresh and fruity cm7 nighly powered G2
So I flashed 2.3.0 , then like the thread says, before rebooting, I flashed 2.4.3 stock version.
However, I am getting a wi-fi error. I saw some posts on it, and they said to "fix permissions". So I did that, yet still seeing a wi-fi error.
So for now, I restored my backup, but I would really like to have this kernel, do you know what I am doing wrong or what I can do to fix it?
Thanks
My mistake i linked the wrong Kernel here you go.
http://forum.xda-developers.com/showthread.php?t=957267
Yeah, I did use that link, however as described above, the wifi is giving me an error..any idea of a fix or what I am doing wrong?
I was getting the same issues. Then I reflashed the rom, rebooted before turning wifi on and had no problems. Also have had no problems set at 1.75 max and .75 min on minmax. Have been using that setting since faux started making his kernels (cm7 amd froyo based) and have never froze once. Quadrant scores for the new evil dhd ext 4 rom at 2900.
Sent from my HTC Glacier using XDA App

Low voltage kernels

Just rooted. Im new to the droid world, so im curious, can i get a low voltage kernel? A friend has Savage Zen and brags about battery life, but would it be compatible with my default-rooted rom? Also can i backup the kernel? Thanks.
Btw i tried googling but every time i got a good lead the links were dead
Sent from my HTC Evo 4G [rooted] Sprint 2.3.3(stock, came preinstalled) hardware v.4 bought new in July.
If you are referring to a rooted, stock HTC Sense ROM, no, do not use SavagedZen. It is only for AOSP ROMs.
AOSP - Android Open Source Project (vanilla, like on the Nexus)
Sense - HTC's UI
You cannot use a Sense kernel on an AOSP ROM, or an AOSP kernel on a Sense ROM.
(All Gingerbread)
AOSP Kernels:
Tiamat
SavagedZen
Cyanogenmod (kernel)
Godmode
PoonKang
I know that Tiamat and SavagedZen have HAVS and can be undervolted using Vipermod. Cyanogenmod, Godmode and Poonkang may come undervolted, but they do not have HAVS so you cannot adjust it.
Sense Kernels:
Freedom by Lithid
Golden Monkey by Netarchy
ChopSuey by barnacles10
Stock HTC
None of these kernels have HAVS (Freedom used to, but it was causing issues so he took it out). Golden Monkey, ChopSuey, and Freedom can come undervolted by certain degrees, it depends on which version of the kernel you download.
I can't think of any way to back up a kernel except for nandroiding system, but I am probably wrong. Just go into recovery, wipe cache and dalvik and flash a new kernel if you have any issues.
There is a good study guide in I think Q&A stickied, telling all that you need to know about kernels. I advise you to read it. Link: http://forum.xda-developers.com/showthread.php?t=894880
tropicalbrit said:
I can't think of any way to back up a kernel except for nandroiding system, but I am probably wrong. Just go into recovery, wipe cache and dalvik and flash a new kernel if you have any issues.
Click to expand...
Click to collapse
You can usually recover a bad kernel by flashing to back to the stock kernel and wiping cache and dalvik. Its usually worked for me, but depends on how much the custom kernel changed things.
To OP, go check out Kernel Manager in the market. It takes a good amount of the guesswork out of kernel flashing.
I say go with chopsuey 9.1 ill say its really good left my phone off charger for 8 hours while i slept was at 41% before and when i woke up it was still at 41% i mean does it get anybetter than that
Thanks for the help. Really in depth and helpful advice . Using freedom aggressive kernel now. Still testing to see if it helped. Great forums.
Sent from my HTC Evo 4G [rooted] Sprint 2.3.3(stock, came preinstalled) hardware v.4 bought new in July.

nscollab/cyanogenmod - the need of a stable kernel

Hello all,
i have been an owner of a nexus s gsm s-lcd since August 2011 and i have been experimenting mostly with cyanogenmod and cyanogenmod based roms such as nscollab.
Using my phone mainly for my jobs, since the beginning of the usage of non official roms, i am always having stability problems ending up not trusting my phone for everyday use.
I have tried cyanogenmod stable, rc, lots of nightly builds and various nscollab versions from 1.0.39.
From my experience so far, except when using matr1x 5.5 cfs i always have some of the following problems, some times some of them and sometimes all of them:
1. reboots
2. reboots with no ability to load the os, with only solution the removal of battery
3. crashes with the result of the pin needed to be given again
4. never waking up after deep sleep
The kernels i have used so far are all the matr1x cfs(sorry, i do not trust con Kolivas and his bfs, being a linux user for 10 years), various netarchy and the stock cyanogenmod .
The only kernel that has been stable for me until now is matr1x 5.5 cfs.
The reason for not going back to the official rom, and be ok with my mobile is mainly the bln and voodoo(although i have bought the paid app and i can use the module with the official rom) modules.
The first thing I though having all these problems is that the main cause of them would be the undervolting that all most of the kernels have. After some tests i realized that with the voltages that proton suggests or even with the stock voltages, the problems do not disappear.
Although, i have found my stable kernel and i always flash matr1x 5.5 cfs in all the roms i use, i would really like to know what is the usual suspect of all these problems. Is there any possibility that some of them are not kernel related and the cause is in the source code of cyanogenmod?
To sum up, i really believe that we should try an effort to create a kernel that is very close to the stock one, and be very careful with the extra modules that we add. Although i do not have the experience of making a kernel package for android, i will try for sure to make a flashable kernel for my needs, and if it's stable i will upload it and share with all of you.
I believe that every mobile has to be bug-free(as possible), and reliable for everyday use and at least i should be reboot-free.
I would really like to read other users experience and opinions.
Regards,
Michael
it was the same for me. nscollab was unusable since it was always freezing in two minutes after boot. changing the kernel did not help. so I decided to change the rom to Nexus MV 10.05. it works very stable (not a single reboot or freeze) and faster than nscollab.
mikkkg said:
The reason for not going back to the official rom, and be ok with my mobile is mainly the bln and voodoo(although i have bought the paid app and i can use the module with the official rom) modules.
Click to expand...
Click to collapse
Well, I found that custom kernels can work with stock ROM's. I'm using stock Google 2.3.6 on my 9023 + pete's kernel with Voodoo sound and BLN. Stable as ****, practically no issues, I'm happy with my NS as never before just because of the lack of constant flashing the **** around to "optimize". It just works flawlessly.
Here's the link to the kernel : http://www.peteralfonso.com/2011/08/download-nexus-s-263514-kernel.html
Had the no wake issue with cm7 216 and nscol 1.4.5. On nscol 1.4.6 and no problems yet. If it happens again it would seem to be a cm7 issue. While annoying devs are constantly hunting down and correcting problems, just the way it is and doesn't bother me.
Sent from my Nexus S using xda premium
Jeez loueeeeze
Just use nscollab .46 because that has stock voltages and you should be fine
Sent from my Nexus S using XDA App
The hole point for me is not using any other kernel but the stock one.. compile yourself a nexus s kernel (google it for how to) and be happy without any reboot, crash..
baterry? normally 1.5 days @ 1.0ghz..
You could do that as well
Sent from my HTC Sensation 4G using XDA App
mathkid95 said:
Jeez loueeeeze
Just use nscollab .46 because that has stock voltages and you should be fine
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
.45 with stock voltages caused the "pin asking" issue even with stock voltages(even with 5.5 cfs - maybe a cyanogen problem?), so that's why i am stuck at .42 with 5.5 cfs and did not even try .46.
Try .46 and lemme know
Sent from my HTC Sensation 4G using XDA App
mathkid95 said:
Try .46 and lemme know
Sent from my HTC Sensation 4G using XDA App
Click to expand...
Click to collapse
If you see, in the thread of nscollab, there are also problems with the phone dying etc, even with the new stable cyanogenmod + matr1x kernel.
I only do tests in my mobile during the weekend, because i use it all week for my job. So stuck with matr1x 5.5 until i see a really stable matr1x kernel coming after 8.
madd0g said:
Here's the link to the kernel :
Click to expand...
Click to collapse
Thank you very much for posting this link. I did not know that kernel. I just found some time to flash nscollab .50 with this kernel and i only changed interactive governor with ondemand to be even closer to stock kernel.
I hope that it is as stable as it is for you.
After some hours with this new kernel, i am not sure about stability(although it seems stable) but nexus is running smoothier than ever.
I've used ondemand from the beginning I started using this kernel, then I tried interactive (default) just to try it out. Not really a difference, same stability/speed and I could get rid of NoFrillsCPU app setting the default governor at startup. So to wrap up, kernel runs beautiful from the start, no extra fiddling necessary.
I do not believe the issues described in the OP are kernel related. They persist in all custom kernels. I think it is from Dalvik VM crash but I have no proof.
Sent from my Nexus S using XDA App
http://forum.xda-developers.com/showthread.php?t=959282&page=309
As I read here I am not alone in the problems described, and after lots and lots of tests i am sure that this is a matr1x specific issue.
So, as i do not have permission to write in a development thread yet, I suggest the following:
1. if the developer of nscollab wants to continue with Matr1x kernels, makes a new release with the last well known stable kernel, which is Matr1x 5.5 until Matr1x developer finds out what is the problem with the new kernels.
2. Matr1x is replaced with another kernel, such as Peter Alfonso's kernel(running FINE for 24 hours. In the same period with Matr1x kernels i would have at least 2-3 problems- 5.5 cfs excluded).
EDIT:
I just got the first "dead phone" issue with alfonso kernel. I should be more patient about stability results of this kernel, or this issue is not kernel related.
After many days of testing with nscollab and different kernels, i am sure that the major problem of "dead phone" is not kernel related but a cyanogenmod issue.
The most stable kernel i tried was Peter Alfonso, but after 4 days of use the issue appeared.
As i need a really stable rom, before going back to stock, i am testing Oxygen 2.3.1, which i do not know yet if it's stable(i hope) but until now is the fastest and smoothest experience.
Id say if you want stability, stay on stock, extra features like BLN and Voodoo sound are added via kernel anyway.
Sent from my Nexus S using Tapatalk
mikkkg said:
After many days of testing with nscollab and different kernels, i am sure that the major problem of "dead phone" is not kernel related but a cyanogenmod issue.
The most stable kernel i tried was Peter Alfonso, but after 4 days of use the issue appeared.
As i need a really stable rom, before going back to stock, i am testing Oxygen 2.3.1, which i do not know yet if it's stable(i hope) but until now is the fastest and smoothest experience.
Click to expand...
Click to collapse
Kalimocho found a kernel error and a missing vendor file in the CM kernel. It will be fixed in the next nightly. The hope is that this was the cause of the freezes/reboots/bootloops/dimscreen bootloops that people were seeing.
mikkkg said:
Hello all,
i have been an owner of a nexus s gsm s-lcd since August 2011 and i have been experimenting mostly with cyanogenmod and cyanogenmod based roms such as nscollab.
Using my phone mainly for my jobs, since the beginning of the usage of non official roms, i am always having stability problems ending up not trusting my phone for everyday use.
I have tried cyanogenmod stable, rc, lots of nightly builds and various nscollab versions from 1.0.39.
From my experience so far, except when using matr1x 5.5 cfs i always have some of the following problems, some times some of them and sometimes all of them:
1. reboots
2. reboots with no ability to load the os, with only solution the removal of battery
3. crashes with the result of the pin needed to be given again
4. never waking up after deep sleep
The kernels i have used so far are all the matr1x cfs(sorry, i do not trust con Kolivas and his bfs, being a linux user for 10 years), various netarchy and the stock cyanogenmod .
The only kernel that has been stable for me until now is matr1x 5.5 cfs.
The reason for not going back to the official rom, and be ok with my mobile is mainly the bln and voodoo(although i have bought the paid app and i can use the module with the official rom) modules.
The first thing I though having all these problems is that the main cause of them would be the undervolting that all most of the kernels have. After some tests i realized that with the voltages that proton suggests or even with the stock voltages, the problems do not disappear.
Although, i have found my stable kernel and i always flash matr1x 5.5 cfs in all the roms i use, i would really like to know what is the usual suspect of all these problems. Is there any possibility that some of them are not kernel related and the cause is in the source code of cyanogenmod?
To sum up, i really believe that we should try an effort to create a kernel that is very close to the stock one, and be very careful with the extra modules that we add. Although i do not have the experience of making a kernel package for android, i will try for sure to make a flashable kernel for my needs, and if it's stable i will upload it and share with all of you.
I believe that every mobile has to be bug-free(as possible), and reliable for everyday use and at least i should be reboot-free.
I would really like to read other users experience and opinions.
Regards,
Michael
Click to expand...
Click to collapse
I use this, if it helps you.
Thread here.
mikkkg said:
http://forum.xda-developers.com/showthread.php?t=959282&page=309
As I read here I am not alone in the problems described, and after lots and lots of tests i am sure that this is a matr1x specific issue.
So, as i do not have permission to write in a development thread yet, I suggest the following:
1. if the developer of nscollab wants to continue with Matr1x kernels, makes a new release with the last well known stable kernel, which is Matr1x 5.5 until Matr1x developer finds out what is the problem with the new kernels.
2. Matr1x is replaced with another kernel, such as Peter Alfonso's kernel(running FINE for 24 hours. In the same period with Matr1x kernels i would have at least 2-3 problems- 5.5 cfs excluded).
EDIT:
I just got the first "dead phone" issue with alfonso kernel. I should be more patient about stability results of this kernel, or this issue is not kernel related.
Click to expand...
Click to collapse
lol i keep looking but i dont find anything
ahhhh

Please suggest a good ROM/Kernel combo

My primary concern is with battery life and 4G. Thanks.
kush deck's 1.3 aosp rom
tiamat sbc kernel
underclock cpu 768/384 with
smartassV2 governor
go launcher ex
youll have excellent battery life plus 4G if its in ur area. launcher u can customize.
also perhaps u can update radio/nv to newest.
Sent from my PC36100 using XDA App
Yup!!!
Decks tiamat 3.3.7 aka. Lee kernel, COD tweaks.
Sent from my PC36100 using xda premium
Stock ROM with bloatware removed with stock kernel
Sent from my PC36100 using XDA App
MIKG 3.0 Kernel that comes with it. I have had no issues with this ROM and you can add themes to it. It has Wimax working and have had no major issues with it. I go all day (work day) without a charge.
gonna agree with decks 1.3d
honestly i have been trying to figure out if the newer tiamat 4.1.0 and 3.3.7.
i like the smartass v2 4.1.0 seems to be ramp up a bit quicker and isnt a bad thing. 3.3.7 may have a little more battery life to it and i'll admit any lag may be just me lol
sidenote: the older tiamat doesnt have smartass v2 and i dont know the differences if any just saying im going off personal experienced
using stock launcher atm this time i've used adw and the newer kernel seemed to stay snappier if that makes sense. havent tried launcher pro plus yet but im sure that will be about the same since hell adw has been updated more than lpp.
i forgot to add to have a "partioned" sd card with at least 1024 in ext partition, then also to convert that from ext2 to ext3 (u can do all that in amon ra recovery) .
after rom settles flash dark tremors a2sd zip from recovery, go to market n get a2sdgui. inside this app choose to move dalvik cache to ext partition. also u can select to zip align on boot.
ps. this goes with my previous post above.
Sent from my PC36100 using XDA App
Thanks guys. I will try Deck's ROM and the suggested kernel.
I used to have 3 hrs (give or take) of battery life on stock HTC Sense. After switching to MIUI w/ a Tiamat kernel undervolted by -50V via viperMOD, my battery lasted for days at a time.
According to Green_Arrow's guide to the best GB and ICS ROMs, MIUI is described as having "the longest battery life" and is hailed as "very customizable." Green_Arrow goes on to say that "this rom is based off of CM7 and is an excelent rom."
I'd recommend MIUI to anyone looking for a fast, stable, energy-saving Gingerbread ROM as long as they stay away from the latest 1.12.23+ versions. A lot of people are reporting a lot of issues that shouldn't be issues on those builds; Most people would recommend MIUI 1.12.9. Happy flashing!
no 4G in miui...
it is very cool how u can customize the looks of it though!!
to OP: one last thing is to flash the "updated gps fix" zip file which is somewhere in these forums. will give u near instant lock.
pm me for any questions u have or if u need help!
Sent from my PC36100 using XDA App

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