Develop Bugs

Undervolt and underclock?...

Are they the same thing?
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no....underclock means to lower the clockspeed (from 1ghz to 900 mhz fkr example) and undervolt means to lower the voltage being delivered to the cpu at a given clockspeed.....you as the user can freely undervolt using setcpu but the kernel chef is the only one who can undervolt a kernel
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Thanks!
Ok, 4 questions:
1)Does undervolting slightly affect the performance of the phone? If so, in what way?
2) Which kernel is better on the battery? Kingclick, our hydra kernel?
3) does it make sense to overclock slightly on an undervolted kernel.
4) which roms are most compatible with each kernel if there is a compatibility issue?
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iflip said:
Thanks!
Ok, 4 questions:
1)Does undervolting slightly affect the performance of the phone? If so, in what way?
2) Which kernel is better on the battery? Kingclick, our hydra kernel?
3) does it make sense to overclock slightly on an undervolted kernel.
4) which roms are most compatible with each kernel if there is a compatibility issue?
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Click to expand...
Click to collapse
1. undervolting improves battery
2. hydra is better on principle
3. overclocking is never necessary....overclocking isnt needed at 1ghz, but if you insist in overclock, 1.113 ghz is good....or 1.15 but i wouldnylt reccommend 1.2
4. all sense roms work with custom kernels
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jdkoreclipse said:
1. undervolting improves battery
2. hydra is better on principle
3. overclocking is never necessary....overclocking isnt needed at 1ghz, but if you insist in overclock, 1.113 ghz is good....or 1.15 but i wouldnylt reccommend 1.2
4. all sense roms work with custom kernels
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Click to expand...
Click to collapse
I'm pretty sold on skyraider. But It s packaged with kingx. Have you tried hydra with skyraider? Does it perform better than king x and would you recommend it?
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iflip said:
I'm pretty sold on skyraider. But It s packaged with kingx. Have you tried hydra with skyraider? Does it perform better than king x and would you recommend it?
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Click to collapse
Kingxklick is a theif
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Which kernel is undervolted more? Hydra or kingxklick?
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iflip said:
Which kernel is undervolted more? Hydra or kingxklick?
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Click to collapse
I'm not sure....but kingklick kernels are overvolted too
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So if I have a stock rooted 2.2 Incredible and just want to save some battery, can I just drop a kernel in place and it will "just work" ? I have SetCPU lowering the clock when screen is off, would this be better?
thanks!

msjulie said:
So if I have a stock rooted 2.2 Incredible and just want to save some battery, can I just drop a kernel in place and it will "just work" ? I have SetCPU lowering the clock when screen is off, would this be better?
thanks!
Click to expand...
Click to collapse
If I was you, I would flash your kernel of choice (mine is hydra ssuv v0.5) and definitely lower the screen off profile....and use a good Rom too...speed isn't always in the kernel you use, its in the Rom too...that's why I don't overlook....
And also, unpack and quadrant are just bragging rites, nothing more nothing less
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jdkoreclipse said:
Kingxklick is a theif
Click to expand...
Click to collapse
WOW...just wow
bro, could you please not speak derogatorily of others?

(Q)Over-Clocking and Under-Volting

havent tried Ocing in my arc,im curious is it really a big difference
from 1ghz Ocing to 1.4 or higher?and the only way to O/C is to unlocked bootloader and use different kernel?is there a stable and safe frequency?tested in a daily usage..

Well, I'm currently running at 806Mhz, I was previously at 1.2Ghz and to be honest, I don't see any difference.
Sent from my LT15i using XDA App

You may try to flash the DoomKernel on your device. It will give you rootaccess, the possibility to over and underclock. But first you need to unlock your bootloader.
I overclocked my Arc to 1,9ghz Max running for days without any problems. I dont recommend much higher or it will run stuck and you may damage your device.
Only overclock your device when you have a good feeling about it

so does that mean i can't over clock to let's say 1.4 GHz and let it be like that for daily use ? either with DoomLord ROM or CM7 ROM..

mr.alawi said:
so does that mean i can't over clock to let's say 1.4 GHz and let it be like that for daily use ? either with DoomLord ROM or CM7 ROM..
Click to expand...
Click to collapse
You can overclock, but ARE YOU REALLY need 1,8Ghz??? All day.
Stock you had 1Ghz and its already fast.
When you doing some grazy OC lets say 1.9ghz your device may be unstable after that.
Most people using 1,2 or 1,4ghz because its stable and not draining battery a lot.
I use 800-900mhz and very happy.
Whay we always talking overclocking, but not "downclocking"
Edit: doomlord kernel max is 2.0Ghz but dont forget about stock is 1ghz....so 2 times faster BUT not all devices are stable with this insane speed.
CM7 and FXP kernel max 1,6Ghz and its rock solid stable all day and night.
Cheers
Taavi
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sunbriel said:
Well, I'm currently running at 806Mhz, I was previously at 1.2Ghz and to be honest, I don't see any difference.
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Click to collapse
Agree.
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From what I've experienced,
If u set the OC in min 1GHz and max 1.8GHz like what I've done, you will notice that ur phone is going smoother.
Well, this is my opinion..
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chitose_ndy said:
From what I've experienced,
If u set the OC in min 1GHz and max 1.8GHz like what I've done, you will notice that ur phone is going smoother.
Well, this is my opinion..
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Click to expand...
Click to collapse
Minimum 1Ghz....wtf? its draining your battery with light speeds.
I think 245Mhz is good
Cheers
Taavi
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taaviu said:
Minimum 1Ghz....wtf? its draining your battery with light speeds.
I think 245Mhz is good
Cheers
Taavi
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Click to expand...
Click to collapse
Yes it drains battery
I mean just to test is there any difference between OC or not.
I'm using min 245GHz and max 1.8GHz
Cheers
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from my experience the browser(opera mobile) is smoother.
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@tyrand3
how much Ghz have you been using?
you using it daily?is it really a big difference?

I overclocked mine to 1.4GHz and use it as daily setup, works smoother and faster.
Min/max 122/1401MHz
Sent from my iPad 2 using Tapatalk

Kernel that is only undervolted but not overclocked?

Can someone post a link to a kernel that runs at the stock 1.5ghz but is undervolted? I don't care about performance. Just want the best battery life. Thanks!!
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Almost any kernal is better in battery than stock
Sent from my SAMSUNG-SGH-I777

you can easily limit the CPU to not go over 1.5 or even 1.0
when i really want to save battery i keep CPU at 800 Mhz or 1.0 Ghz

Any of the kernels in the development section can be either under bolted or over clocked. I'm using synergy the way it comes out of the box and its great. Standby battery drain is unbelievable.
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AllGamer said:
you can easily limit the CPU to not go over 1.5 or even 1.0
when i really want to save battery i keep CPU at 800 Mhz or 1.0 Ghz
Click to expand...
Click to collapse
why dont u UV ur 1.5ghz to 1.0ghz voltage? or near there?

That would be underclocking not under volting
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AllGamer said:
you can easily limit the CPU to not go over 1.5 or even 1.0
when i really want to save battery i keep CPU at 800 Mhz or 1.0 Ghz
Click to expand...
Click to collapse
What app do you use?
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twolfekc said:
What app do you use?
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Click to collapse
in CM ROMs it's build in
in other ROMs you can use SetCPU or faux or the other one i forgot the name right now

AllGamer said:
in CM ROMs it's build in
in other ROMs you can use SetCPU or faux or the other one i forgot the name right now
Click to expand...
Click to collapse
Thanks a lot man!!!
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AllGamer said:
in CM ROMs it's build in
in other ROMs you can use SetCPU or faux or the other one i forgot the name right now
Click to expand...
Click to collapse
Other one = System Tuner
Sent from my Juggernaut SGSII or my "Galaxy Tasked" 10.1

twolfekc said:
That would be underclocking not under volting
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Click to collapse
true, but i find it more effective than UV
yes, we can keep it at 1.5 Ghz with say -0.010v or something like that
it's just a minor hassle to tweak
you can open a Terminal in your phone and launch the command
some apps like the faux can let you control the voltage as well

Overclocking

Y can't the Droid incredible overclock past 1190
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The short answer is yes it can but it's not worth it as it's not stable
The long answer is the CPU in the phone isn't really well built to be overclocked from what I've read online. I can't get enough stability with the current voltage max (1375 - which is already 50mV higher than stock and 25mV higher than tiamat). I won't go higher than 1375 and I get nearly instant reboots at the next speed of 1.22ghz. A lot of what I read online suggested 1325 is the max voltage with 1.113 ghz. I have issues above 1.113 ghz myself so I doubt any higher than 1.19 is worth it.
So, if my phone can't run it (probably a lot of phones as well) then I'm not doing it.
Though if you REALLY want higher, Tiamat (AOSP kernel) supports up to about 1.26 ghz but only allows 1350mV max so if you want to try overclocking higher you are welcome to do that. I have a feeling you'd be disappointed though as I don't expect to see stability.

tiny4579 said:
The short answer is yes it can but it's not worth it as it's not stable
The long answer is the CPU in the phone isn't really well built to be overclocked from what I've read online. I can't get enough stability with the current voltage max (1375 - which is already 50mV higher than stock and 25mV higher than tiamat). I won't go higher than 1375 and I get nearly instant reboots at the next speed of 1.22ghz. A lot of what I read online suggested 1325 is the max voltage with 1.113 ghz. I have issues above 1.113 ghz myself so I doubt any higher than 1.19 is worth it.
So, if my phone can't run it (probably a lot of phones as well) then I'm not doing it.
Though if you REALLY want higher, Tiamat (AOSP kernel) supports up to about 1.26 ghz but only allows 1350mV max so if you want to try overclocking higher you are welcome to do that. I have a feeling you'd be disappointed though as I don't expect to see stability.
Click to expand...
Click to collapse
Right wen I overclock to 1.2 I go into bootloops lol
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Alton (Halo 2) said:
Right wen I overclock to 1.2 I go into bootloops lol
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Click to collapse
Don't set at boot lol...
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itsme said:
then why do you ask where to get tracelogview, if you mean to ask how to get the cellid?
I think you should pay a bit of attention to what the subject of the thread is. you have 3 different questions of which you mix up the answers in all threads. that makes it kind of difficult to answer.
Click to expand...
Click to collapse
I don't It's just right wen i do it..
It's all over lol
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The dx I'm currently on can handle 1.45 undervolted.
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watt9493 said:
The dx I'm currently on can handle 1.45 undervolted.
Sent from my potted plant running Liberty 3
Click to expand...
Click to collapse
W...t...f...
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Alton (Halo 2) said:
W...t...f...
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Click to collapse
Different chipsets. Omap are always good for oc
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[Q] What's the best GB aosp kernel for battery?

I'm having major battery drain with the latest CM7 stable release. I've lost 25% in standby in about 90 minutes....my phone was charged while off to 100% last night, and when I turned it on I left it alone....didn't even turn the screen on. when I came back an hour later it was at 78%
Can someone please recommend a good battery saving kernel, please....I'm pulling my hair out finding one. For such a popular phone the choices seems really sparse

Every phone handles kernels differently but one of the best ones so far on my phone is here.
http://forum.xda-developers.com/showthread.php?t=1546878
[KERNEL][WIP] Mason kernel for supersonic v0.14
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Savaged Zen 2.2.1 bfs undervolted -50mv with sbc. Gets a little hot with sbc but it can be turned off while not charging
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smatherlee said:
Every phone handles kernels differently but one of the best ones so far on my phone is here.
http://forum.xda-developers.com/showthread.php?t=1546878
[KERNEL][WIP] Mason kernel for supersonic v0.14
Sent from my PC36100 using Tapatalk 2
Click to expand...
Click to collapse
+1 and you can undervolt with this kernel as well, I have it set at -50mv running an AOSP rom with COD tweaks and i'm at 17hrs with 78% battery left

Mason kernel
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BigSmoke53 said:
Mason kernel
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Click to collapse
+1
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Wish I still had my EVO to give this a shot with cm7. I miss cm roms. Someday soon I hope I will be reunited with them
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smatherlee said:
Every phone handles kernels differently but one of the best ones so far on my phone is here.
http://forum.xda-developers.com/showthread.php?t=1546878
[KERNEL][WIP] Mason kernel for supersonic v0.14
Sent from my PC36100 using Tapatalk 2
Click to expand...
Click to collapse
I agree with this kernel. I use SBC as well, it will stop the 10% drop in battery whenever you unplug it.

Thanks for all the wonderful responses, everyone!! I'm giving mason a shot first, since it seems so popular
I'm trying Mason G - v0.14 sbc uc'd to 729mhz, powersave gov....but I can't find any options to uv/ov. Does set cpu not work properly with this kernel? What app/script should I be using?

for undervolt if it is sysfs HAVS enabled you need to get vipermod. If it just says undervolt then it may have a pre-set undervolt determined by the dev.

hp420 said:
Thanks for all the wonderful responses, everyone!! I'm giving mason a shot first, since it seems so popular
I'm trying Mason G - v0.14 sbc uc'd to 729mhz, powersave gov....but I can't find any options to uv/ov. Does set cpu not work properly with this kernel? What app/script should I be using?
Click to expand...
Click to collapse
Search vipermod script. Download it, flash in recovery, then run command in terminal then chose voltages
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vipermod...gotcha!! Thanks guys

Isn't set CPU for sense Roms? Go get Rom toolbox and it does it all.
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BigSmoke53 said:
Isn't set CPU for sense Roms? Go get Rom toolbox and it does it all.
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Click to collapse
I've been using setCPU for my xperia & neXus for over a year each I'll try romtoolbox, though...thanks!

BigSmoke53 said:
Isn't set CPU for sense Roms? Go get Rom toolbox and it does it all.
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Click to expand...
Click to collapse
I'm using setcpu right now with CM7, Tiamat kernel. Phone was fully charged early this morning, and is still at 86% battery charge, but I've used it for less than half an hour, and I also use Juice Defender.

BigSmoke53 said:
Isn't set CPU for sense Roms? Go get Rom toolbox and it does it all.
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Click to expand...
Click to collapse
Setcpu works with anything, sense or not
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Evocm7 said:
Savaged Zen 2.2.1 bfs undervolted -50mv with sbc. Gets a little hot with sbc but it can be turned off while not charging
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Click to collapse
On GB is was running this same setup and my battery life was nothing short of amazing. I had a good 15-24 hours depending on use.

best cm7 kernel?
i just recently started using mason. its pretty awesome. before that i used tiamat sbc also no problems. just try which ever ones you think you may like every couple days to see which one works best for you. i also give the kernel about 10 minutes to bake in every time before i unlock it. i dont know if thats been proven to help but it cant hurt and seems to work well for me.

I've been running mason sbc for about a week now. I had to use a combination of vipermod and smurfed out scripts to get the kernel set where I wanted it. I noticed the kernel was set for BFS by default, which I've never been a big fan of, due to its power consumption....so smurfed out let me set the scheduler to CFS, which is much more conservative and doesn't sacrifice any i/o speed, imho. Then I used vipermod to uv -25MHz so it wasn't such a battery-hog. Underclocked, undervolted, and set to CFS seems to be my winning combo!!! I get no less than 3 hours of constant screen time (streaming video, browsing the web, etc.) and enough standby to last me all day so I don't have to carry my charger with me anymore.
With every other android I've ever owned, setcpu does everything I've mentioned changing in this post...so when it wasn't working, I had no idea what to do.
Thanks so much guys!!! I couldn't have done it without all your help....HTC is in a world all its own in the android scene since they use so many different things that no other manufacturers do. It made me want to pull my hair out until you guys came along to help me out