[Q] Undervolted Kernel? - G2 and Desire Z Q&A, Help & Troubleshooting

I was wondering if their is a undervolted kernel for the G2. If not would any developer like to make one? I would be willing to test/host and kernel.
Thanks,
macfan74318 (not a spammer)

Check the development subforum. There have been a number of kernels available for quite some time. I know at the least that Pershoot's is undervolted (that's the one I use and is a popular option for people running CM6). You'll have to check the thread's of the other kernels to see if any of those are undervolted (I know most were focused on overclocking).

Related

[Q] CFS/BFS Clarification..

I have scoured the intarwebs and I have briefed myself on these beautiful kernels.
Now this may be a noob question, and I apologize ahead of time for it..
BFS Kernel #5 & CFS Kernel #7
Are the two aforementioned kernels an Either/or type deal ? or can they be flashed together ( one after the other)..
This shows how much i know about kernels..... Can there only be ONE kernel in a ROM ?
Please help..
Thank you,
John
Only one kernel at a time, and you can flash one or the other. The BFS stands for "Brain **** Scheduler" and these kernels also include HAVS (hybrid adaptive voltage scaling) to increase battery life by regulating the voltage sent to the processor when commands are sent to it (or something like that). These kernels are newer than the non-BFS ones. I started running a BFS kernel on Saturday and am very happy with it. I just flashed #5 over #4 today and it is also working well. I was reluctant to try a BFS kernel because I was quite happy with the way my phone was running previously, but my curiosity got the better of me. I do notice a slight improvement in battery life with the newer kernel.
Hope this helps.

pershoot vs virtuous kernel

Hi,
I just recently went from the villainromz to the virtuous rom. Now i have a few questions about whether i should use the viruous kernel or the one from pershoot. I know the pershoot goes up to 1517 mhz whereas the one from virtuous only goes up to 1497... But i am more interested in the differences regarding battery life, overall performance and memory usage.
Another thing I would like to know is the difference between governors. I honestly don't know what the difference between the different governors is, in virtuous you have interactive and smartass and ondemand and the others. But whats the difference between those 3? Which one is the more interesting choice to use?
Sorry for my english, i'm from belgium so there might be some bumps in my writing
cheers
Here's an explanation of the various governors: http://forum.xda-developers.com/showthread.php?t=843406
I would recommend that you use Virtuous kernel unless you have major problems with it. It was developed specifically for the Virtuous ROM, so it's most likely to be the best fit.
That being said, I know some are using Pershoot's kernel with no issues, either. Note that if you use Pershoot's kernel, you need to use the one *specifically built for Sense ROMs* (i.e. NOT THE ONE IN PERSHOOT'S THREAD). The Sense ROMs require certain features in the kernel for things to work properly (such as Bluetooth, RM radio, WiFi hotspots, etc).
Also... Wrong section But my favourite govoner would be Smartass then Ondemand

[Q] Ziggy Kernel?

On the piggy website, I'm unclear which kernel is for my incredible?
The kernels meant for the incredible have "-inc-" in their title. I believe the most recent ones end with "-041011".
holy crap there a lot of choices. Any guidance? I don't see anything listing descriptions of anything.
This would likely suit you best:
http://www.ziggy471.com/2011/04/10/beta-kernels-10-apr-11/
Ztest-INC-BFS-HAVS-041011
has brain f*ck scheduler and HAVS for custom voltage set. note this is his latest kernel release but it is also labeled beta. So if you have any weird issues with it you may want to check out an earlier release.
-- As always I have to jam in my favorite kernel (chad's incredikernel) if you haven't tried it out yet then I can only suggest that you do.
Cheers
POQbum said:
This would likely suit you best:
http://www.ziggy471.com/2011/04/10/beta-kernels-10-apr-11/
Ztest-INC-BFS-HAVS-041011
has brain f*ck scheduler and HAVS for custom voltage set. note this is his latest kernel release but it is also labeled beta. So if you have any weird issues with it you may want to check out an earlier release.
-- As always I have to jam in my favorite kernel (chad's incredikernel) if you haven't tried it out yet then I can only suggest that you do.
Cheers
Click to expand...
Click to collapse
In going back and forth, I've personally found the performance of Chad's 12/23 kernel and Ziggy's 4/10 kernel virtually indistinguishable. Some devices don't respond well to the hybrid adaptive voltage scaling (HAVS) or the settings he's implemented and will be more stable using static voltage scaling (SVS), which is the standard kernel. IncrediControl works on this Gingerbread kernels so I'm assuming it would work well on his Froyo kernels for adjusting the voltage without a script. Any decent clocking app will handle the speed. But the script guide he has is very useful and might be worth playing with if that's your thing. If you have any questions for him, he's best found at infectedrom.com these days.
Wow thanks! I enjoyed scripting on y Eris so I will look at that
Since i have everyone here, is there a stock rom that has all that blistered removed? I can adb shell and remove the stuff but I was just curious.

[Q] Which kernel work best for you? [subjective/objective]

Hey guys. I'd like to know what kernel you think suits you best. I'm looking for both subjective answers and objective answers. Which of the following suits you best?
Franco kernel
Trinity kernel
Faux kernel
Glados kernel
Stock CM kernel
Other
Please post a comment explaining why you have chosen the way you did. Feel free to discuss any kernel and also share your phenomenal tips and tricks.
glados for:
best compromise (for me)for performance\battery
fully featured like many others kernels but.....most of these features came from glados's dev,and then others dev implement it,love liveOC and is the unique with that feature,the dev is very gentle and available,the kernel can be adjusted via the control app,and IMHO is more good that trinity\franco's app for features,dispositions,colors,style etc.
i tried and used all the kernels and buyed all the dev's control app.my choice is glados,after 2\3 months of usage i don't want to came back.the best for my usage\tastes\preferences.
only 2 things that i miss:
a minimal slot of 190\220 mhz
preset pre-configured like franco's app (powersave,music,high power,etc etc..)
The kernel packaged with CM9 is faux, unless the CM team uses faux as a base and changes something in it..
Franco for me, despite some issues he is devoted to making his kernel perfect and his app is really good too for updating. Makes life a lot easier. With Franco's kernel I can say I have hardly ever had an app FC. I've tried other kernels but I just find with Franco's there is just more consistency and when I look at his thread I know what is going on almost instantly. This is my experience. I also like Fugu kernel and Trinity and GLAdos so on occasion I will try them out.
No Lean Kernel? Probably one of the most popular Kernel's out there
IAP Samurai kernel just rolled on the scene and couple of weeks ago. It's in the Sprint Gnex development section. I recommend giving it a try, Earthbound did some real good kernels in the OG Epic. Community and now he's brought his talents to the Gnex. It is based on Faux, but with IAP twists.
http://forum.xda-developers.com/showthread.php?p=25732343
Sent from a phone...
Currently switch between cm9 plus and leankernel. Both have a great balance of performance and battery life
I use the CMplus Kernel from here, he works with no problems under CM9 by me.
Flukester69 said:
Franco for me, despite some issues he is devoted to making his kernel perfect and his app is really good too for updating.
Click to expand...
Click to collapse
I completely agree. Franco/Lean kernel is the way to go. If I had more time throughout the day I'd like to try out the others again, but I don't feel like there's a need. Franco's kernel and app are great!

Kernels and your preferences

Alright, pointless gathering of information time! How many of you strictly flash a different kernel after a ROM flash? For example, I'm using liq*id 1.5 which comes with Franco kernel bundled with it. Now, I'm sure a large percentage here may agree, the guys have built a nice stable ROM and know what they are doing, likewise Franco is a dependable dev with a solid kernel.
On paper it sounds like a match made in heaven as they both have plenty of experience and i'm sure the liq*id devs chose it for a reason. However, I always go back to Trinity after about 20 mins. Am I a sucker for placebo effects? Does anyone else religiously go back to a preferred kernel despite the knowledge that most bundled kernels SHOULD/POSSIBLY give the best user experience?
TL;DR do you use a kernel most the time because you BELIEVE it will give you the best experience, or do you give bundled kernels a good run first?
Sent from my Galaxy Nexus using XDA
i dont know.. in my experience custom kernels have usually been better than bundled kernels, with cm being an exemption since the cm kernel is very important to cyanogen. on most the other roms, most of the developers really focus most their attention to the rom. anyways, i will usually run/try all the kernels(need to know what is out there and how it compares to trinity), but always go back to trinity since that where my heart lays, and home is where the heart is
Through some sort of sorcery and probably placebo, I've always noticed best results when I use a kernel that has its own ramdisk.
I'm not much for bundled kernels. I know what kernels work for me and how they work by trying them all out.
Currently, GLaDOS kernel is the one that acts best for me.
Franco Kernel... it's what I'm used to and I haven't had any problems with it so why change? plus.. I bought his app, so I'm dedicated to it.
And no I don't use bundled kernels. Just because the kernel comes with the ROM doesn't mean its optimal for that particular ROM. But it may come with ROM settings that are for that kernel (such as AOKP and "GNParts")
LeanKernal 5.7
zephiK said:
Franco Kernel... it's what I'm used to and I haven't had any problems with it so why change? plus.. I bought his app, so I'm dedicated to it.
And no I don't use bundled kernels. Just because the kernel comes with the ROM doesn't mean its optimal for that particular ROM. But it may come with ROM settings that are for that kernel (such as AOKP and "GNParts")
Click to expand...
Click to collapse
If you want to use AOKP 4.2.1 which is MR1 build 1 I suggest just upgrading the kernel they chose to go with...It wtill has some battery issues but if helped at least 30%
I use CM 10.1 with the CM 10.1 kernel. Best combo for me and my usage pattern
I don't use bundled kernels either!Last 3 months using AK Purity Kernel and it's really solid and does the job perfect!
I've been running CM 10.1 with the Air Kernel. Its been working great for me so far.

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