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[INFO] Custom Kernels & Overclocking - FuguMod Ultra Pre Release

After reading through the Thread for the Pre Release of FuguMod Ultra in the development section of this forum I thought I would post some info up for people who are wondering why it doesn't work with their phone, and just some general info on overclocking.
- First off, not all phones will be able to run at 1366MHz. Every CPU made has a range of freuqencies it will work at, and it is different for every single one. So some may be able to handle 1366MHz and above, others may max out at 900MHz. If you are getting black screens, freezes, or random behaviour, then your CPU doesn't like the frequency you have it at, try a lower frequency.
- Always keep an eye on the temp of the CPU when testing overclocking, if the CPU gets too hot, and fail safes don't work, there is a chance you could fry your CPU.
- With the FuguMod Ultra kernel, you must also be aware that gpu bus frequencies have been changed, so if your phone is not happy with that it will black screen. (as bus speeds are like cpu speeds, every different device can handle different clock speeds)
- plls values have been changed, and these may cause problems on your phone.
So if you want to have a go at overclocking your phone, back it up, and then give it a go. Select a frequency, and test with something pretty cpu intensive (3d game, multiple quadrant passes) and see if there are any bugs/overheating during a 15min time period. If you notice any problems/too much heat, try a lower frequency, and try again. And if for some reason your phone doesn't like the kernel, you can reflash with your previous kernel or a new ROM as you have already backed up your data.
If you have any other questions about overclocking, feel free to post here and I will try my best to answer them.
--- Samsung G3, InDroid 4.3, FuguMod 2.4 B3 800MHz ---

How can you check the CPU temperature? I thought it was only battery temperature.
Sent from my GT-I5800 using XDA App

dilzo said:
How can you check the CPU temperature? I thought it was only battery temperature.
Sent from my GT-I5800 using XDA App
Click to expand...
Click to collapse
The battery temp is a good representation of how hot the processor is getting as it is right next to the battery (only a thin sheet of metal seperating it) If the battery rises in temperature by a few degrees, then you can summize that the cpu is probably getting a few degrees hotter than that. I really wouldn't recommend letting the battery get above 55degrees (celcius) as this means the CPU may be getting up close to 65degrees (celcius) which is a very bad thing.

Good post.
Note that if you want to make some stress-tests, you have to put "PERFORMANCE" governor and set the max freq you want to test.

marcellusbe said:
Good post.
Note that if you want to make some stress-tests, you have to put "PERFORMANCE" governor and set the max freq you want to test.
Click to expand...
Click to collapse
Yes, Very true!!
Must also say, Your kernels are pretty legendary! Waiting patiently for the offical release of your FuguMod Ultra

m not able to see time in state with both setcpu and cpuspy and it seems deep sleep is also not working.

Piyush Rawal said:
m not able to see time in state with both setcpu and cpuspy and it seems deep sleep is also not working.
Click to expand...
Click to collapse
How have you got your phone set up? i.e. what ROM are you using etc.

I am using stock jpq with app2sd, swap, zipalign, ramhack and stuff. Setcpu is installed with default min/max freakquency, No profiles in use and undervolt a bit.

Ok,
This may be an issue caused by XXJPQ, as it is a new release there may be some sort of conflict. Have you tried asking if anyone else has this issue in this thread? http://forum.xda-developers.com/showthread.php?t=1132697
I haven't played around with JPQ yet so don't know what the bugs are yet.
Also, are you running a stock kernel? Have you confirmed that the phone has been rooted properly as well?

It's definitely a bug in Kernel. I tried three different roms and i wasn't able to check time in state in any of them (I am talking about fugumod ultra prerelease kernel here).
With previous versions of fugumad kernel everything is fine. So definatly a bug in kernel.

Piyush Rawal said:
It's definitely a bug in Kernel. I tried three different roms and i wasn't able to check time in state in any of them (I am talking about fugumod ultra prerelease kernel here).
With previous versions of fugumad kernel everything is fine. So definatly a bug in kernel.
Click to expand...
Click to collapse
Ok cool, I'll report the bug to the developer so that he can have a look into it. Thanks for testing and proving to the kernel.

Little bit of info some might find helpful. After some recent testing, I have found that some people might experience a black screen freeze when phone is in standby for a while with 83MHz min setting and on demand governor. I am not sure of the exact reason for this, whether it is a bug, or that the processor just doesn't like going that low for extended periods of time. If you experience this type of error, just hard reset the phone then open setcpu after phone has loaded and change the "standby" profile minimum to at least the next step up on the slider. Personally I use 223 setting as it provides a smoother lock screen animation, and no significant difference in battery drain.
Sent from my super smooth GT-I5800 using XDA App

How to revert overclocking ?

Hi everyone,
I got a Wildfire 2.2 froyo (stock rom) rooted...
Recently, I flashed nFinity Mc4 Kernel and installed SetCPU in order to overclock my device, but, I am not feeling secure with this
So I want to cancel my overclocking.. I already have a nandroid bakup with my rooted froyo with official kernel ( Imade it just before flashing the nFinity Mc4 kernel)... All i got to do is to restore that backup right.. ?!
Or I should do something before doing it after doing it ?!
I didn't wanna act myself without asking the experts coz i know that the cpu is a very sensitive part which i don't wanna mess with...
Any help appreciated!

Bump !!!!!

In Recovery
- wipe all
- wipe cache
- restore your nandroid backup.
thats how it always worked for me..without any problems. After that your system is restored to the point of your backup.
I don't think overclocking is in generell harmfull to your phone. You have to consider when htc releases a phone in different countrys with highly different temperatures they have to ensure that this system is working for all users ( i think this is one of the factors when they consider at which frequency the cpu should be clocked). I noticed a big difference when i run my phone when it is 37° warm + overclocked to 691 mhz in the temperature of the battery compared when its 20° warm. At temperature about 37° and keeping the phone in the car behind the windshield charging and running navigation, the battery temp gets up to 45°(then i stopped charging...). I have to say this temperatures i think isn't the ideal working temperature (even when Htc stated in some of their user-manuals that the battery is harmed when the temperatur gets over 60°). When i set the cpumax back to 528Mhz the temperature gets down, i think this is a importent thing to watch the development of the temperature in your terms of usage to ensure a adequate life-time of your phone.

Use the "profiles" feature of SetCPU, set one for Temp <37 (or whatever you are happy with) to 528MHz, i havent got set CPU or any overclocking software, but i have researched into it, and when i get my Wildfire rooted i will certinly overclock,
good luck!
hope i helped

Well, after overclocking, I didn't notice a big difference. I don't use my device for gaming, I use it just to access the internet, so I preferred being safe... Thx every1, u got hit on ur thx button!
Sent from my HTC Wildfire using XDA App

Trinity kernel OTG crash/freese bug

Hi
Sorry cant post in the development thread since i just joined.
Using TS1700-GPUOC-4.1.2-mr1-fr-ALPHA12 with CM10 causes Nexus 7 to Freeze/crash and reboot when you remove a USB pen drive or 2.5 harddrive that is connected with a OTG cable. It happens if you do a dismount from settings/storage or just pull the cable OTG cable out.
Otherwise its a very good kernel for Nexus 7.
/cazrack

cazrack said:
Hi
Sorry cant post in the development thread since i just joined.
Using TS1700-GPUOC-4.1.2-mr1-fr-ALPHA12 with CM10 causes Nexus 7 to Freeze/crash and reboot when you remove a USB pen drive or 2.5 harddrive that is connected with a OTG cable. It happens if you do a dismount from settings/storage or just pull the cable OTG cable out.
Otherwise its a very good kernel for Nexus 7.
/cazrack
Click to expand...
Click to collapse
Finally! I could Kiss you!! I wont don't worry.... at least however a manly high five will do. I am having this issue since using the Trinity Kernel and like an idiot never once though it was the Kernel. Strange how the units will still turn off even if you just plug and unplug in the OTG cable with nothing plugged into the cable itself. So we think it is the Kernel then?

Casanub said:
Finally! I could Kiss you!! I wont don't worry.... at least however a manly high five will do. I am having this issue since using the Trinity Kernel and like an idiot never once though it was the Kernel. Strange how the units will still turn off even if you just plug and unplug in the OTG cable with nothing plugged into the cable itself. So we think it is the Kernel then?
Click to expand...
Click to collapse
Yes, 100% certain its kernel related.
When you run CM10 updater from inside CM10 and a new nightly build gets installed it removes Trinity kernel and install the default CM10 kernel and that makes the problem go away.
After you flash Trinity kernel back you get the freeze and crash/reboot issue again.
If you use this Kernel, please contact morfic. check his site below for email and other contact information.
derkernel.com
(sorry no real link, just joined.)
/cazrack

cazrack said:
Yes, 100% certain its kernel related.
When you run CM10 updater from inside CM10 and a new nightly build gets installed it removes Trinity kernel and install the default CM10 kernel and that makes the problem go away.
After you flash Trinity kernel back you get the freeze and crash/reboot issue again.
If you use this Kernel, please contact morfic. check his site below for email and other contact information.
derkernel.com
(sorry no real link, just joined.)
/cazrack
Click to expand...
Click to collapse
Thank you Cazrack. I will email him now, I can imagine he will be inundated with emails
Another two quick questions "sorry" with Trinity, do you use setcpu to overclock or do you find the kernel gives you all the speed you need? secondly have you had the issue of the unit turning off on an overnight charge? I do not do this normally but I fell asleep with it plugged in and found in the morning it was turned off, when I turned it on it was at 100% so thought is might have turned off as a safety feature but just wondering if you experienced this or heard of it happening?
Thank you again for you help.

The same thing happens to me with the Trinity kernel but it also happens with LeanKernel for 4.2. It did not happen with LeanKernel for 4.1.2, so I don't think it is just a kernel only issue. It doesn't happen on the stock kernel, M-Kernel+, or Franco r30.

O2Blevel said:
The same thing happens to me with the Trinity kernel but it also happens with LeanKernel for 4.2. It did not happen with LeanKernel for 4.1.2, so I don't think it is just a kernel only issue. It doesn't happen on the stock kernel, M-Kernel+, or Franco r30.
Click to expand...
Click to collapse
Cheers for the response, always good to know its not the hardware . Defo a Kernel issue, I have emailed derkernel.com, I am sure we should have a fix soon, otherwise it aint that much of a big issue.

Casanub said:
Thank you Cazrack. I will email him now, I can imagine he will be inundated with emails
Another two quick questions "sorry" with Trinity, do you use setcpu to overclock or do you find the kernel gives you all the speed you need? secondly have you had the issue of the unit turning off on an overnight charge? I do not do this normally but I fell asleep with it plugged in and found in the morning it was turned off, when I turned it on it was at 100% so thought is might have turned off as a safety feature but just wondering if you experienced this or heard of it happening?
Thank you again for you help.
Click to expand...
Click to collapse
I keep the stock clock speed 1.3 ghz but I use setcpu to set certain programs to scale to 1.7 ghz.
For example webbrowsers benefit from 1.7 ghz in faster loading and smoothness.
overclocking for games i prefer to run cpu stock and have my gpu overclocked to 600 mhz.
stock gpu is 416 or 418 mhz.
cant overc to much during long gaming sessions since it get to hot and gpu oc give more than cpu.
when i used franco kernel r25 the power off thing happend to me too.
only 1 night during charging but i flashed a new kernel after that.
/cazrack

cazrack said:
I keep the stock clock speed 1.3 ghz but I use setcpu to set certain programs to scale to 1.7 ghz.
For example webbrowsers benefit from 1.7 ghz in faster loading and smoothness.
overclocking for games i prefer to run cpu stock and have my gpu overclocked to 600 mhz.
stock gpu is 416 or 418 mhz.
cant overc to much during long gaming sessions since it get to hot and gpu oc give more than cpu.
when i used franco kernel r25 the power off thing happend to me too.
only 1 night during charging but i flashed a new kernel after that.
/cazrack
Click to expand...
Click to collapse
Ah I see I have done the same it works very well. However you mentioned overclocking the gpu to 600mhz how is this achieved? its not an option in setcpu, suppose the programe is called setgpu
I think I will stick with the the Trinity as the OTG restart is not that much of a issue really. I am sure derkernel will have an update soon.

Casanub said:
Ah I see I have done the same it works very well. However you mentioned overclocking the gpu to 600mhz how is this achieved? its not an option in setcpu, suppose the programe is called setgpu
I think I will stick with the the Trinity as the OTG restart is not that much of a issue really. I am sure derkernel will have an update soon.
Click to expand...
Click to collapse
yes you can OC the gpu for better gaming fps on some kernels.
for example Trinity kernel and Franco kernel allow this if you use franco.kernel.updater from google play store.
i have tested 700 mhz but but during long gaming sessions with games pushing the gpu hardware like spiderman it just get to hot.
484 and 520 mhz is considerd very safe from the information i gatherd.
600 should work even for longer gaming sessions but the device will be warmer.
650 i will test this but im sceptical about long gaming sessions.
750 some crazy people run this....
at the moment im using cpu gov ondemand in setcpu with value 50 in cpu scaling.
have you tried the elite kernel? 1.8 ghz cpu 650 mhz gpu..
/cazrack

cazrack said:
yes you can OC the gpu for better gaming fps on some kernels.
for example Trinity kernel and Franco kernel allow this if you use franco.kernel.updater from google play store.
i have tested 700 mhz but but during long gaming sessions with games pushing the gpu hardware like spiderman it just get to hot.
484 and 520 mhz is considerd very safe from the information i gatherd.
600 should work even for longer gaming sessions but the device will be warmer.
650 i will test this but im sceptical about long gaming sessions.
750 some crazy people run this....
at the moment im using cpu gov ondemand in setcpu with value 50 in cpu scaling.
have you tried the elite kernel? 1.8 ghz cpu 650 mhz gpu..
/cazrack
Click to expand...
Click to collapse
Okay I see it comes full circle, I will give it a bash.
The elite was going to be my next kernel... only reason for using Trinity was, I was advised to do so as a first try. It might be the next step to get rid of the OTG restart and of course the 650 mhz gpu stock oc. Have you tried it or going to try it?

Casanub said:
Okay I see it comes full circle, I will give it a bash.
The elite was going to be my next kernel... only reason for using Trinity was, I was advised to do so as a first try. It might be the next step to get rid of the OTG restart and of course the 650 mhz gpu stock oc. Have you tried it or going to try it?
Click to expand...
Click to collapse
is it supposed to work with cm10? ive tried to flash it but it didnt seem to flash in good
because trinity animation still showing after flash... but nexus isnt booting up.
no problem just boot into recovery and reflash trinity kernel or a cm10 rom.
any clue?
prehaps reflash elite when you have updated to a 100% cm10 nightly installed.
/cazrack

cazrack said:
is it supposed to work with cm10? ive tried to flash it but it didnt seem to flash in good
because trinity animation still showing after flash... but nexus isnt booting up.
no problem just boot into recovery and reflash trinity kernel or a cm10 rom.
any clue?
prehaps reflash elite when you have updated to a 100% cm10 nightly installed.
/cazrack
Click to expand...
Click to collapse
Sounds strange did you delete the cache? As I had that issue originally? I am just using stock ROM tbh as it seems to be the most responsive at the moment but I have not tried them all obviously
Suppose we best keep on keeping and seeing if the smart devas can release a fix.

Casanub said:
Sounds strange did you delete the cache? As I had that issue originally? I am just using stock ROM tbh as it seems to be the most responsive at the moment but I have not tried them all obviously
Suppose we best keep on keeping and seeing if the smart devas can release a fix.
Click to expand...
Click to collapse
I think i did, but i will try again. Could be that extreme kernel is not compatible with cm10?
I would like to try to OC cpu even more up to 2 ghz would be intresting but i dont think there is such a kernel to download.
Once i reach 10 posts ill post in XDA Trinity developer thread
/cazrack.

overheat

Hi I'm using redmi 2 prime and I'm on cm13 official ROM I have been facing a lot of overheating issue in stock miui ROM too but why is it happening 2gb ram is more than enough and do anyone know how much temp is harmful for my device I get up to 43 to 45 degree Celsius is it OK ??

That temperatures are not normal, I only get those numbers when all cores are running at maximum speed for some time. If you are getting this numbers on both OSs there must be something in common. Since you are on CM and rooted, you can do some tests.
First, to discard a hardware issue you should use a lower max frequency speed than 1200 MHz, use 800 MHz for some minutes and watch and feel your mobile temperature. I hope this will decrease that heat!
Second, if the heat went away, you should identify what is causing it. Typical heat causes are GPS and 3G/4G usage. Make sure these are off for now and list all those apps you are using on both OSs. Go to battery in settings and uninstall those apps which are consuming the most battery, one by one with maxspeed set to 1200 MHz and watch and feel your temperature.
Notice that recent nightly builds are being reported by users as draining battery too fast. If nothing is helping try an older nightly build, previous to 23rd august. Always do a nandroid backup, before updating your ROM and keep a close eye into official CM13 thread.
If you want a quick advice, do this downgrade first and restore your installed apps from a nandroid backup.

Try this CPU settings using Kernel Adiutor on Interactive Governor [Root Needed]

Can anyone give me the link for 0822 nightly of CM 13 official rom.

akshay0036 said:
Hi I'm using redmi 2 prime and I'm on cm13 official ROM I have been facing a lot of overheating issue in stock miui ROM too but why is it happening 2gb ram is more than enough and do anyone know how much temp is harmful for my device I get up to 43 to 45 degree Celsius is it OK ??
Click to expand...
Click to collapse
Try to flash custom kernel if you want to stay in CM13. Then dowload kernel adiutor to change CPU speed, hotplug and etc. We are here to help

Speed and Battery tweaks.

So I've been following this section for months and just got my a2017u 2 weeks ago. I'm rooted with tenfars tool still locked on b20. I've noticed in the last few weeks a tapering off of new and useful info for this phone and would really like to see what and where everyone is with it? LSpeed? Kernel Auditor? Or any tweaks that have helped either performance or battery life!!! Looking for anything to make this already great phone better!!! TIA

I have been using EX Kernel manager to tweak the settings as kernel auditor was not working properly with the big.LITTLE arrangement. I have upped the readahead value and underclocked the cpu to 1036mhz on the little cores and 1401 mhz on the big cores. working still as snappy and getting +2h SOT. I'm a heavy gamer and Asphalt 8 still plays as fluid as before, even better tbh due to less heating.
If you don't like to underclock, you could try these:
http://forum.xda-developers.com/htc-10/development/pnp-tweak-custom-butterfly-ghostpepper-t3431307

+2h? That's really good! I know overclocking can/could/might damage the CPU. Does underclocking have any of the same risks? I'm rooted and unlocked atm. So no warrenty anyway

aPexalpha said:
+2h? That's really good! I know overclocking can/could/might damage the CPU. Does underclocking have any of the same risks? I'm rooted and unlocked atm. So no warrenty anyway
Click to expand...
Click to collapse
Overclocking can't really harm anything. The excess heat might but it would take a long time and really high temps (you couldn't keep the device in your hands). The only thing you risk by overclocking is a system crash. Just reboot, lower the clock values and voilà ! So no, underclocking can't hurt anything. Overvolting however poses a real threat to the integrity of the components. It's quite the same thing as in computers (except for the heat, you don't always realize it's too hot in a computer).
That being said, is overclocking still even possible on smartphones nowadays ? Just for the fun of it because it's not needed in the least on the Axon 7 .
That's impressive results ! Not sure those hours are needed since the battery is doing well with the software power saver but still a good thing to know.

Still any extra sot is welcome. I'm not a gamer, don't really have any apps that truly need the full power of the sd820 so might give it a shot. Greenify does wonders for standby time.
Not sure if the built in 'intelligent country control' does anything tbh

I'm on my phone most of the day whether it be YouTube play music, texts,calls,etc.. I'm just hoping to find a balance between battery and my multitasking ADHD LOL

Nik2424 said:
I have been using EX Kernel manager to tweak the settings as kernel auditor was not working properly with the big.LITTLE arrangement. I have upped the readahead value and underclocked the cpu to 1036mhz on the little cores and 1401 mhz on the big cores. working still as snappy and getting +2h SOT. I'm a heavy gamer and Asphalt 8 still plays as fluid as before, even better tbh due to less heating.
If you don't like to underclock, you could try these:
http://forum.xda-developers.com/htc-10/development/pnp-tweak-custom-butterfly-ghostpepper-t3431307
Click to expand...
Click to collapse
Mine keeps switching back to 'normal' modes with CPU full on. Any idea how to fix that?

aPexalpha said:
Mine keeps switching back to 'normal' modes with CPU full on. Any idea how to fix that?
Click to expand...
Click to collapse
Yup, I had that problem too initially.
First, I made system changes persistent upon reboot by running this command in Terminal emulator(you can also use adb shell):
reboot disemmcwp
Secondly, you have to disable smart power in the quick toggles.
Once this is done, set your new max values, select the arrow next to it to make it applied on every boot and then reboot your device. It should work.
Note: Everytime you open the EX Kernel manager you will see the speeds jump to max for like 1 sec but if you actually check the cpu statistics you'll see that your settings are sticking and the max clock speed was just for everytime you open the app.

The smart power! I forgot that thing controls the CPU.
So that round arrow thing means apply on boot? I selected that, figured it meant something like that.
Cheers!