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I've been searching around for a way to undervolt my captivate to save on battery life. Ideally I'd like to just use a program but it seems SetCPU doesn't adjust the vsel and you either need to edit some kind of dbdata table or use the Unhelpful kernel. Can anyone tell me more about this? I'm not sure if I'd want to flash to unhelpful just so I can undervolt
Im pretty sure flashing unhelpfuls kernel is your best option for undervolting. I ran that kernel for quite a bit on a few different roms and it worked amazingly to preserve battery life. I went from about a 12 hour life to about 30 depending on usage. The biggest problem is finding a table that works for your phone. It seems as though everyone had to customize tables based on their phone. I was lucky enough to find one in the unhelpful thread that worked flawlessly
Is flashing a kernel different than flashing a rom? All I've done so far is root so I'm unsure of the differences.
Is there a sticky on how to flash the unhelpful kernel? I've browsed through the thread with little luck unless something is buried very deep within its 40+ pages
Its fairly simple...all the instructions are in the open f the thread. Download the file. Place it on the root of your SD card. Use rom manager to flash the kernel. Changing the table on the other hand is a little tricky. By default its undervolted at a very safe level... I fulound I could get much lower and still have my phone stable with no issues.
Sent from my SAMSUNG-SGH-I897 using XDA App
Hello,
FIRST OFF!
This thread is NOT for discussing whether or not benchmarking is useful. If you feel the need to flame me or anyone here for CARING about benchmarks, then go find another thread to piss in! I made this thread to clean up Faux's thread as it was taking over.
Ever since moving to any of the newer CM7 updates, I have noticed extremely low benchmark scores on CF Bench. When on CM7-1 with one of faux's kernels, everything is fine. (Cf Bench = 7000)
When I say low, Im talking 4000 on CF Bench despite OCing to 1.56Ghz. That is far below what the Sensation STOCK is measured at...
Notes:
1-Scores can be all over the place. At one point, I got a 6400. This would immediately become a 5000, and then back to 4000 range.
2-I have tried using three different methods of controlling the clock. (System tuner by 3c and fauxclock, both recommended by faux for his kernels, and then the CM7 performance settings). Fauxclock had the best outcome, but EXTREMELY unstable!
3-I have done NUMEROUS restarts along with cache clearing and dalvik clearing. I even pulled the A-Bomb out and used the superwipe script to start fresh. After the a-bomb, I DL only what I needed to test with...
4-My phone feels laggy, which goes along with the crappy scores.
At this point, I am restoring to my trusty Alpha 1 + faux kernel. While that works, I feel I will wind up getting left behind.
What could cause this? What are some things I may have overlooked? Others DONT have this problem, at all.
Matt
well i will say benchmarking isnt a totally conclusive. although there isnt any other method of tangible scoreing as of yet. However i will say that if your phone is laggy then your benchmarks are a good way to test why.
scoreing varies when you have active apps in the background unknowingly.
also if you flashed a new rom and kept your old kernel that will dramatically reduce your scores. check out some other kernels for your new rom and see if that makes a difference.
try flashing back to stock and deleting the kernel, then flash the CM7 rom without the kernel in your system and run a test.
theres a lot of things that will change your scoreing.
let me know what you get out of this.
rddocke said:
well i will say benchmarking isnt a totally conclusive. although there isnt any other method of tangible scoreing as of yet. However i will say that if your phone is laggy then your benchmarks are a good way to test why.
scoreing varies when you have active apps in the background unknowingly.
also if you flashed a new rom and kept your old kernel that will dramatically reduce your scores. check out some other kernels for your new rom and see if that makes a difference.
try flashing back to stock and deleting the kernel, then flash the CM7 rom without the kernel in your system and run a test.
theres a lot of things that will change your scoreing.
let me know what you get out of this.
Click to expand...
Click to collapse
I came from ARHD with fauxs kernel. I did a superwipe and then flashed cm7-1 and then flashed fauxs kernel. Everything was great until I tried any of the new CM7's...Just tried cm7-6 and got a WHOPPING 3000!!!!!!!!! YAY!!!!!!!!
I knew it would be low, just playing with the phone. I find it so weird that going back to cm7-1 fixes everything.
Either their new updates kill my performance for whatever reason, or going from one cm7 build to another is a no go. (I did a superwipe just to be sure when going from alpha1 to alpha 5).
Damnit.
If it werent for seeing others with good scores, I would blame cm7 or faux's kernel. Its got to be some little quirk with my phone. (And a few others).
Matt
I'm really very happy with my Nexus S 4G. It's unlocked and rooted, but otherwise pure stock and I really like it that way.
Coming from the Hero it's a pleasure to have a phone that doesn't require heavy modification to make it perform properly. Still, I miss the thrill of flashing ROM's and kernels.
I would like to try a kernel...mainly to simply o/c a bit, but I don't want it to suffer stable and reliable operation. I recall with the Hero, some of the kernels would adversely affect things like the GPS, making it something I couldn't rely on.
So my question: what kernel can I use that is uncapped, but will otherwise be as close to stock as possible?
Thanks for your thoughts!
Kernels are pretty different over here. I don't even know what's closest to stock. They pretty much all have mods in them. Matr1x kernel is pretty popular. You may have to up the voltage for it if you oc to 14xx. 1200 seemed pretty stable to me with default voltages. Currently franco kernel is pretty popular. You can't oc it, but it seems pretty snappy without oc. GLaDOS is also being used a bit but i've read some mixed reviews and for me at least it did seem a little lagging at times for the short period I ran it. I tried Trinity kernel when I first moved over from the hero and it seemed kind of flaky though it's possible that could have been due to the kang I was running. There are a few others out there. Cm7 kernel has a lot of the same mods cooked in though it's likely not the latest updates. You will see a lot of mention of BLN and Voodoo. There are apps on the market for those features and there's an app nstools that has some kernel config settings you can adjust depending on kernel. Mainly just try to read a lot. Most of the roms and kernels haven't given me any major issues beyond the random reboot, which coming from the hero, just means "normal" lol.
Sent from my Nexus S 4G running CM7/franco.Kernel
Once you flash you can't stop O_O that my experience i'll direct you to Peteralfonso's kernel on his website here
Searching the forums would help you more than anything. You will get more info by searching, rather waiting people to reply here. These questions are asked on daily basis. And get the same replies everyday. I don't sound to be mean but seriously there is more info than you can get by starting another thread, only thing is you need to dig the info.
I have tried a few different roms and kernels and for once cm7 runs perfect for me w the supplied kernel. No reboots. Has been stable at 1440 performance for testing but I usually leave it at 1000 on demand.
Yeah they all have this blinking light crap in it now by default which I hate, and the lights turn off and I don't like that either. I want the light on when I'm using the phone and off when I'm not, not the other way around!
Sent from my Nexus S using XDA App
I like the bln mod, but I do not like the one that turns off the backlights when using the phone. It's just easier to use the buttons imo and gives a quicker visual reference for everything. Otherwise I mostly am left wondering what is up with all the black space.
Sent from my Nexus S 4G running CM7/franco.Kernel
suhas_sm said:
Searching the forums would help you more than anything. You will get more info by searching, rather waiting people to reply here. These questions are asked on daily basis. And get the same replies everyday. I don't sound to be mean but seriously there is more info than you can get by starting another thread, only thing is you need to dig the info.
Click to expand...
Click to collapse
I hear you on that, and spent a lot of time reading comments and concerns and problems about the various kernels available. They all seem to pretty much be experimental, with various idiosyncratic problems and lots of bells and whistles such as aforementioned BLN, Voodoo, deep idle, etc.
I thought maybe I was missing something in my search for a kernel that would allow o/c, but not have the stability concerns of a the feature-rich, highly customizable kernels.
I think the Matr1x kernel will be your best option, u can OC it till 1400mhz, what I don't recommend to do, but at 1200/1300mhz its pretty stable.
It also got many options like BLN, BLX, Live OC, touch wake, etc.
But if you don't want them, why you just don't use 'em?
Like just flash the kernel and keep it like it is, and maybe do some overclocking.
wanna stable ? stock kernel
basically , there is no kernel more stable then stock ...
qtwrk said:
wanna stable ? stock kernel
basically , there is no kernel more stable then stock ...
Click to expand...
Click to collapse
True, but he prefers to OC it a bit.
Sent from my Nexus S
franciscofranco's kernel (link) works best for me. It's fast (no lags even without OC, I'm running at stock 1000 MHz), reliable (I've been using it for at least month and I haven't got any random reboots or application hangs) and battery efficient (thanks to deep idle and other tweaks).
irizwan said:
Once you flash you can't stop O_O that my experience i'll direct you to Peteralfonso's kernel on his website here
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Click to collapse
+1
Never found a more stable kernel than Pete's. However, I've been on Glados for the last week or so and am seeing excellent battery life with Deep Idle.
Icecoldmeat said:
True, but he prefers to OC it a bit.
Sent from my Nexus S
Click to expand...
Click to collapse
personally i think overclock is totally unnecessary , why ? 1 GHz is sufficient to handle all job you require to the phone...
Best thing to do would be compile your own stock kernel with oc.
qtwrk said:
personally i think overclock is totally unnecessary , why ? 1 GHz is sufficient to handle all job you require to the phone...
Click to expand...
Click to collapse
True again. I love 1100mhz because it gives you a bit more speed with no lagg, and you batterylife is still awesome.
Sent from my Nexus S
deville~> said:
franciscofranco's kernel (link) works best for me. It's fast (no lags even without OC, I'm running at stock 1000 MHz), reliable (I've been using it for at least month and I haven't got any random reboots or application hangs) and battery efficient (thanks to deep idle and other tweaks).
Click to expand...
Click to collapse
with deep idle OFF, the difference between the two is minimal, idle stats displayed deep idle has been 0
Downloaded and testing peter alfonso's kernel now. Its very minimalistic, no options like deep idle etc, and u can OC it up to 1400mhz. Running 400-1100mhz for a day now and the battery life is just awesome.
U can find it on:
http://www.peteralfonso.com
Sent from my Nexus S
albundy2010 said:
Best thing to do would be compile your own stock kernel with oc.
Click to expand...
Click to collapse
Or one with LiveOC which is kinda better cause it also OC the GPU =D
+1
Click to expand...
Click to collapse
the akward moment when someone said they +1'd you but actually didn't -_-
there're too many to choose.i don't like the ones that update so often indeed.
I'm sorry about the long post if you want to get straight to my question, skip the first paragraph
I was avoiding this because it is a fairly noob question set (and I've seen a history of new members on XDA being berated for questions that could have been answered by any amount of research and I'm unsure whether my question set will fall into that category), but I just can't do anymore research since most information I'm finding is not in one place and I can't seem to find a full feature list for any of the ROMs and Kernels I research and look into, and on top of that there are SOOO many.... I'm about to pull my hair out of my head and my skull along with it, and every search engine I use is contemplating homicide (google has divorced me and is planning my murder for the life insurance money, and duck-duck-go is biting my heels with its bill) and firefox is planning a suicide bombing taking the 50 or more tabs with it along with my RAM, and I'm not terribly sure any of those actions aren't justified (and also, as you can probably tell, I'm going NUTS!). Just the amount of information and the amount of digging I have to do to find a single answer for the MANY questions I have regarding these ROMs and Kernels is staggering (I remember having similar problems searching to find the right linux distribution for me, but it wasn't this hard and after 2 or more weeks of searching, I didn't find myself not having any substantial answer, nor did it actually take two weeks)
anyways, enough with the crazy intro to the question
My current phone is a Nexus S 4g (sprint) currently running the stock ROM and Kernel, gingerbread 2.3.7 (build GWK74). I have it rooted and I have clockwork mod recovery flashed as well as ROM manager installed. I'm looking for ROM and Kernel recommendations (and combinations, I want to make sure they're compatible) as well as reasons why they might fit my needs
I need a ROM and Kernel that:
1. Won't reduce any of the current features I have on the Stock ROM/Kernel I have (though I don't use NFC so if google wallet isn't applicable, that's not a loss)
2. Will allow more steps in frequencies on my CPU (so CPUtuner won't tell me it can only go between 100Mhz and 1Ghz when I attempt to manually change the frequency, I can get one governor to get me 400mhz, but that only adds one more step to the 2 current steps, and performance and powersave governors don't work with the stock kernel, not that it's a big deal, I prefer conservative and ondemand)
3. will allow voodoo control & voodoo color (or any other feature that might be useful, though BLN isn't a big deal to me)
4. Has better battery life (while in use, use being things similar to internet browsing) than stock ROM/Kernel (so UI flare isn't completely necessary, and underclocking and/or undervolting would be great, as long as it doesn't sacrifice speed)
5. The UI should be less jittery than I'm seeing the stock react half the time (though that might be an effect of the CPU tuner)
6. I would like overclocking (however if that interferes with battery life, then I can live without it as long as it doesn't make the speed worse than stock)
7. this coincides with #1, but I think it should be said anyways: I don't want any connectivity (besides maybe NFC) to be affected adversely, so I want 4g, 3g (given), wifi, tethering, etc...
a few questions I have that I can't seem to clear up:
1. I'm beginning to develop software for android, so I'm wondering if any ROM and/or Kernel will affect ADB or any connection to my PC at all
2. What advantages do CM7.1 nightlies have over the CM7.1 stable, and any disadvantages (because I would prefer stable unless there's something on the nightlies I might want)
3. And any advantages ICS ports might have to anything listed above? and compatible kernels?
well, I have done some research, and the two ROMs I'm currently considering are Oxygen and CM7.1 (stable). I like Oxygen because it's a barebones rom with a few extra features that (from what I've seen thus far) don't interfere with performance or battery life. I like CM7.1 because it seems to be fairly quick and has a good feature set.
now I know that the performance might be more affected by the kernel than the ROM, so the kernels I've been most interested in are Netarchy and Trinity. Netarchy has decent speeds (though I'm unsure of its effect on battery life) and has a great list of features (such as voodoo control). Trinity is fast (depending on which version, I was debating on the overclocked version that doesn't go to the highest clock setting and the undervolted version which stayed at 1ghz but had great powersaving) because of its speed and/or powersaving, but I'm unsure of all of the features it has)
I had read that CM has its own kernel, but I can't find any substantial evidence to it besides a few short forum posts on various forums. I can't find anything on the CM site that backs up those claims (I could have just missed it though)
I was considering MIUI but I had heard that it had some translation problems from chinese into english and I'm not sure if you can get the text to read from left to right (and be alligned that way). Not sure if that has been fixed and if the features on there are necessary and/or make it difficult to use
I'm asking here because I'm sure I've barely scratched the surface on all of the ROMs and Kernels that might be helpful to me (and hope to get info from more knowledgeable people)
I have been referring to this thread
http://forum.xda-developers.com/showthread.php?t=1067813
I'm sure somethings I want aren't possible or if they are, there's negligible gain (I'm starting to thing that about battery life with the more I read)
once again, I apologize for the extremely long post, as you can tell I'm verbose (as it's really the only way I know how to get my point across)
if you need further information, feel free to ask. If any information needs to be cut off (especially if this needs to be cut shorter) let me know
I hate to do this but
BUMP
my main problem with this is that most of these roms and kernels seem to do the same thing but all have different problems
I've also found that some versions are more buggy then others which has thrown yet another curve ball into my research (not as bad as ICS but bad enough). I should have expected it but it's just one more thing to go digging for
an answer at all would be nice, other than just the views with no post. Even if the next person's answer is "this is stupid" or something of the like
even that would help me believe it or not
Honestly, your answer is the same one everyone else gets. Try them out and see. Most of the kernels out there should work with any of the ROMs, even the stock ROM. Personally, I have had no real issues with any ROM/kernel combo I have tried. I use CM because I am so used to the features they add and I dislike the stock GB theme. I'm using the last nightly cm7 had because there was something they didn't have in the stable but I don't recall what that was. But most any ROM or kernel you get for gB is likely done being developed for. The combination in my signature serves me very well. A lot of people do like oxygen. I just missed cm too much. Most of the kernels should allow for all of the wants you have.
I also ran cm9 with the glados kernel and honestly, it ran perfect for me. My only issue was with a few apps i use not wanting to cooperate.
Sent from my Nexus S 4G running CM7/franco.Kernel
Sent from my Nexus S 4G running CM7/franco.Kernel
alright thanks (which the button did for me)
I understand that (and some threads I looked over had answers like that, so I figured someone might say something along the lines of "try it out") I was mostly looking for input from past users about some ROM or kernel
I just don't want to end up with a broken phone before I leave for a week or two (to a rural area for a couple of days)
thanks for the answer, all I really need to know now is have there been any problems with any of them running ADB or transferring files from PC to phone?
EDIT: well I'm going to continue trying to get android SDK working on my linux OS, and I'm going to install and run a few ROMs and Kernels
ROMs I'm going to try: CM7.1 Stable, Oxygen, CM9
Kernels: Netarchy, Trinity, matri1x, and glados (with CM9)
Hello,
I just installed the ressurection remix 1.5 rom, in combination with Thoravukk kernel, and i set my cpu to 1.6 ghz.
Set it at boot, and rebooted the device.
I'm really impressed about the boot speed, and overall smooth scrolling etcetera.
My question is, is there something else i need to do to keep it stable, or change other settings, like voltage, gpu, ram or anything else?
Because i'm really happy with the changes it's given me, but i don't want problems in a while.
Batterylife is not an issue, i don't expect it to last as long as it did on 1.2 ghz
Looking forward to information.
If i don't need to do anything else, i would like to know as well.
Thank you
Lost in space xD
Can any one help me with some info on where can I download the Thoravukk kernel. I've entered around 3 or 4 (including the official team blockbuster) sites and I don't see any download links
Why do you have it overclocked to 1.6? is there even a difference in performance? The phone's so powerful already lol, you could UV for better battery life, increase gpu for performance (in games) I don't think you need more Ram, I have the OG epic 4g and I have plenty lol
As far as stable, pushing your processor may create problems that you won't necessarily see at stock frequency, you get what ask for.
Sent from my SPH-D700 using xda premium
Fire n mage said:
Why do you have it overclocked to 1.6? is there even a difference in performance? The phone's so powerful already lol, you could UV for better battery life, increase gpu for performance (in games) I don't think you need more Ram, I have the OG epic 4g and I have plenty lol
As far as stable, pushing your processor may create problems that you won't necessarily see at stock frequency, you get what ask for.
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Exactly what I had in mind
The Note is plenty powerful even amongst the current crop of droids. And no app requires a dual-core 1.6Gghz. The stock frequencies were chosen for a reason, I'm guessing it's quality. All chips burn out in time, they have a lifespan. But you overclock your device and you burn your chip faster.
So what I'm saying is stay with the original frequencies. Port an optimized ROM and that should suffice.
Thanks for your answers, but i really notice the differenct, especially with a reboot, it normally takes 30-40 seconds, and now in less then 10 secs i'm at my home screen, and ready to go.
Also it is smoother with scrolling, and apps launch even faster.
so the diff is hugh to me.
Battery life is not an issue, i said, even if it goes to crap, i replace it for €20,- (Just about $25,-)
And the performance is nice, but my question was if i have to set other things.
And i use lulzactiv governor, it uses only what it needs, it's not always the full 1.6 ghz. Only when speed is preferred.
@Kenepo112x40 this is where i found it, i use it now, so it works:
http://forum.xda-developers.com/showthread.php?t=1574672
Edit: There's a zip in attachment, that's the one, install in cwm recovery
SGS2-1989 said:
Thanks for your answers, but i really notice the differenct, especially with a reboot, it normally takes 30-40 seconds, and now in less then 10 secs i'm at my home screen, and ready to go.
Also it is smoother with scrolling, and apps launch even faster.
so the diff is hugh to me.
Battery life is not an issue, i said, even if it goes to crap, i replace it for €20,- (Just about $25,-)
And the performance is nice, but my question was if i have to set other things.
And i use lulzactiv governor, it uses only what it needs, it's not always the full 1.6 ghz. Only when speed is preferred.
@Kenepo112x40 this is where i found it, i use it now, so it works:
http://forum.xda-developers.com/showthread.php?t=1574672
Edit: There's a zip in attachment, that's the one, install in cwm recovery
Click to expand...
Click to collapse
I had to go and look for the 2.30 on another post cuz the 2.41 doesn't allows me to have data on the phone. Thanks anyway man, the problem was that they hadn't uploaded the link yet on the official site but they did yesterday.
To OP, I suggest u increase voltage at over locked 1.6 to keep it stable