[Q] CM based roms make phone hot? - T-Mobile Samsung Galaxy S 4

Not sure if I am missing something. But anytime I load a rom that is based on CM on my device the device seems to get very warm with even basic usage. Any of the touchwiz based roms, even the s6 port, don't have that issue. They get warm but not as bad. I do have the MDL bootloader and NH7 radio. Does that possibly cause a problem? Currently I am on resurrection and it is getting pretty warm. I have tried kernel auditor to set values and thermal controls, but that has not seemed to make any difference. Any ideas on what I can do to help with the heating and maybe improve battery life?

M9x3mos said:
Not sure if I am missing something. But anytime I load a rom that is based on CM on my device the device seems to get very warm with even basic usage. Any of the touchwiz based roms, even the s6 port, don't have that issue. They get warm but not as bad. I do have the MDL bootloader and NH7 radio. Does that possibly cause a problem? Currently I am on resurrection and it is getting pretty warm. I have tried kernel auditor to set values and thermal controls, but that has not seemed to make any difference. Any ideas on what I can do to help with the heating and maybe improve battery life?
Click to expand...
Click to collapse
I'm unfamiliar with your ROM but, in general, the more auditors you set, the more your device will be crunching numbers, and the more your device will heat up.
Some ROMs overclock the CPU by default, so make sure your upper limit isn't too far above your clockspeed; likewise, check your screen brightness (screens draw the most power) to make sure its not always maxed.
Sent from my SGH-M919 using XDA Free mobile app

The auditor is the kernel control I thought. Only have that one. That would make it work harder? I do have only that one installed and screen brightness I always set manually and never above 50% normally. This rom isn't over clocked at all just the stock 1.9 ghz. This is the same thing I see on any cm based rom. Only ones that don't seem to get this warm are the touchwiz based versions but they always seem a little laggy.

Related

How do you over clock?

Does anyone know how to over clock you're DI to say 1.2? Thanks for any help.
You first need to root your phone, then install a kernel that is compatible with whatever rom you are using, then you need to install an OCing app like SetCPU and adjust accordingly.
I'm rooted running the 2.2 RUU and I have set cpu. So do I just need a kernal? Which one?
i reccomend King Kernel bfs #4, best freaken kernel ever... its located... here
so when i install this kernal is it ok to just bump the cpu speed up to 1.2? are there any guides to do this?
makos101 said:
so when i install this kernal is it ok to just bump the cpu speed up to 1.2? are there any guides to do this?
Click to expand...
Click to collapse
A lot of factors come into play when you start overclocking, every rom will respond differently.
The first thing to do before anything is to do a complete nandroid back up.
When overclocking keep in mind that the more you overclock the more chances you have of making your system unstable.
I have experimented a quite a bit and I have found that the King Kernal #4 seems to work well for me and at 1.2 it seems to be pretty stable. Any higher than that and my phone will sometimes re-boot itself for no apparent reason.
Again, your rom may handle things different so experiment and see what works best for you.
And remember - Do a complete backup first!
I'm using the number 4 kernal and it only goes to 1.19 is this what you mean by 1.2? I have to keep mine at 1.1 ghz at 1.19 my di gets unstable
Ya that's as high as they can oc these chips. I can only get to 115 safely 119 just crashes. But the charging experience will be better than stock with the BFS #4.
Sent from my ADR6300 using XDA App
Could you guys please tell me what your settings for setcpu are?
I want better battery life and a faster cpu but im noticing that my phone almost needs a wake up time when i come out of screen off.
Thanks so much
makos101 said:
Could you guys please tell me what your settings for setcpu are?
I want better battery life and a faster cpu but im noticing that my phone almost needs a wake up time when i come out of screen off.
Thanks so much
Click to expand...
Click to collapse
If you are experiencing slow wake up, try increasing the min cpu speed to something around 460. Better batt life and increased speed takes a lot of experimenting. Your OC speed might differ from others due to differences in the phones cpu. For example, I have never been able to oc to 1.19 without the phone freezing or rebooting. My phone can handle 1152 but 1113 is perfect. In my opinion, ROMs have something to due with best batt-speed combo. I am running Ruby 1.1.1 with a setcpu profile of Screen off=245 without any wake lag. Other ROMs I have tried had wake up lag at that speed profile.
My set up:
(ROM-ASOP) Ruby 1.1.1
King's #1 ASOP "I told you so"- only works with ASOP
With the ROM's "Gem" performance scaling setting off, I use setcpu to OC to 1113, min is 245. I have a profile set to SCREEN OFF = 384 max/245 min.
I haven't worried about battery life since I started using King's kernals (I've tried them all with every compatible ROM on xda). I have several posts elsewhere on XDA showing 12 plus hours on a single bump charge and heavy phone use. Good enough for me. Stock cpu speed plus Sense ROM seems slow to me now.....to each his own though.
I hope to get some help because i value the opinions of those on this forum. Currently i am running virtuous 2.7 with virt. kernal v2. I am rooted, s-off, 2.15.xx radio. I want performance without draining my battery. What are the best settings to use in setcpu?
I did try king's kernal #4, but it was rebooting. switched kernals this morning.
One other app I use in conjunction with SetCPU is MinFreeManager. This will readjust your free ram to a higher standard. But with SetCPU I have it at 1113/Ondemand with no custom profiles. One other thing I really don't set is the Set on Boot option. I don't know why but I do. So with SkyRaider Vanilla 3.0 RC3/ KingX Kernel #4/ and MinFreeManager my phone fly's. I can't say for certain what settings you need for your phone but 1113-1115 is preferred by "most" phones and keep the set on boot option off. I keep a Galaxy S live wallpaper running and pandora while browsing the web and no lag what-so-ever.
CyanogenMod 6.0.2 and KingX kernel #1 with the same setup runs almost as smooth.
Hope this helps you out.

Installed kernel, now buggy sound on video.

Hi guys,
I'm a bit of a noob so please bear with me. I recently rooted my phone (SGH-I747M Telus), I have CWM recovery installed. I was interested in overclocking so I installed this kernel on my stock rooted rom (I installed the "sammy" one). I also cleared the delvik cache, cache, and fixed permissions before rebooting. Now I'm having a weird problem with video playback. I get these bleep like sounds, like you might hear on a spaceship, lol. The normal audio plays in addition to these sounds. Yet, regular audio plays fine (mp3s), same with youtube. So, my question is, why? Is there any way of fixing this? I'd rather not play around the stock ROM. I made a backup before doing anything and recently tried to restore the boot, but I got an invalid md5 check.
-JC
Okay, I was able to fix my problem by flashing the stock at&t kernel... but I would still like to be able to overclock... is there another kernel that I can try or a way to fix the problem with the kernel I already tried? Thanks.
If you still want to try previous kernel your problem might be because of heavy undervolting , kernel creator posted this voltage chart.
You can experiment by increasing voltage and see if that helps.
Or you can just try this faux kernel , its pretty good also, we don't have many kernel choices for Samsung based roms at this early development cycle.
ghost77 said:
If you still want to try previous kernel your problem might be because of heavy undervolting , kernel creator posted this voltage chart.
You can experiment by increasing voltage and see if that helps.
Or you can just try this faux kernel , its pretty good also, we don't have many kernel choices for Samsung based roms at this early development cycle.
Click to expand...
Click to collapse
Thanks for the reply... but I was able to fix the problem. It was something wrong with the settings of SetCPU which I installed earlier. I changed it from on demand to performance and now all is well. Now I have a question about battery life. Will overclocking drain battery a lot faster? I imagine it would only make a difference if I was doing CPU intensive things.
JustChillin1414 said:
Thanks for the reply... but I was able to fix the problem. It was something wrong with the settings of SetCPU which I installed earlier. I changed it from on demand to performance and now all is well. Now I have a question about battery life. Will overclocking drain battery a lot faster? I imagine it would only make a difference if I was doing CPU intensive things.
Click to expand...
Click to collapse
Well.. performance setting makes it so that your CPU runs 100% all the time. I don't think that will be battery friendly . Overclock generally uses more power and battery longevity will depend on your usage.
You can try messing with setcpu settings. Try Conservative, then limit minimum speed to 384 and max to your preference. Try your movie again.
Current kernels and setcpu are a bit quirky.
I had the same issues on ktoonsez Sammy. Ended up back at stock AT&T. I've heard it's an issue with many of the kernels but a fix is on the way. Couldn't find a way to get rid of it, but that's not to say it can't be done. Don't have much time to tinker right now.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Its a known issue on ktoonsez kernel. Flash faux's kernel, it has the same features (as well as GPU OC) and doesn't have the audio issue.

Galaxy running hot...

I'm kinda new to the S3 and have mainly stuck with TWIZ roms, I've tried a couple AOSP roms but found that the battery gets hot as hell quickly either while charging or using and the data connectivity is spotty at best on AOSP, I have LTE where I live but rarely see it on AOSP. I've updated PRL and profile and radios...but no luck...can anybody help or point me in the right direction? Thank...
Sent from my SPH-L710 using Xparent Skyblue Tapatalk 2
well generally twiz roms are more stable than aosp roms... so id stay in the TWiz sections... but thats all i can say
AOSP ROMs typically run the CPU harder. While TouchWiz ROMs use more RAM. Thus why AOSP ROMs typically, emphasis on the 'typically', run hotter than TouchWiz ROMs. There are ways around this. For example, messing with CPU governors and settings. I have found ktoonsez has kept my AOSP ROMs fairly cool, relative to the default. Heat also means battery drain. So you will find here that TouchWiz ROMs normally have better battery life. I highly recommend CleanBean 4.1. Very nice ROM. Complete, stable, very quick and snappy. While no sacrificing battery life, as I was able to squeeze out about 14-15 hours. Good luck
Sent from my SPH-L710 using xda app-developers app
lilman355 said:
AOSP ROMs typically run the CPU harder. While TouchWiz ROMs use more RAM. Thus why AOSP ROMs typically, emphasis on the 'typically', run hotter than TouchWiz ROMs. There are ways around this. For example, messing with CPU governors and settings. I have found ktoonsez has kept my AOSP ROMs fairly cool, relative to the default. Heat also means battery drain. So you will find here that TouchWiz ROMs normally have better battery life. I highly recommend CleanBean 4.1. Very nice ROM. Complete, stable, very quick and snappy. While no sacrificing battery life, as I was able to squeeze out about 14-15 hours. Good luck
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
While I agree that AOSP ROMs use more CPU and TW use more RAM, for me AOSP had the best battery life. Espicially when I'm running ktoonsez kernel I get a good 3+ hours screen time and a total of 20 hours easily. While on a TW ROM running ktoonsez I get maybe 2 and a half hour screen time with a total of maybe 12-15 hours of total battery time. Also for me the only time my phone gets hot is when my phone is charging and I am using it constantly or I'm playing graphic driven games.
bimmerman7 said:
I'm kinda new to the S3 and have mainly stuck with TWIZ roms, I've tried a couple AOSP roms but found that the battery gets hot as hell quickly either while charging or using and the data connectivity is spotty at best on AOSP, I have LTE where I live but rarely see it on AOSP. I've updated PRL and profile and radios...but no luck...can anybody help or point me in the right direction? Thank...
Sent from my SPH-L710 using Xparent Skyblue Tapatalk 2
Click to expand...
Click to collapse
Flash freeza's md4 firmware then clean install Liquidsmooth 2.5 then their gapps, thats it, leave the kernel that comes with it. No more heat, everything works perfectly including LTE
Just recently my phone too has become hot. But the only thing I've changed is the micro SD, from 32-64gb. Could that be the reason why?
VikingoRMCF said:
Just recently my phone too has become hot. But the only thing I've changed is the micro SD, from 32-64gb. Could that be the reason why?
Click to expand...
Click to collapse
I doubt that would be the issue. You haven't changed anything else ? Such as OC'ing higher, or at all ? Switching Kernels ? Dropping the Device ?
prboy1969 said:
I doubt that would be the issue. You haven't changed anything else ? Such as OC'ing higher, or at all ? Switching Kernels ? Dropping the Device ?
Click to expand...
Click to collapse
Nein.
Some info:
Any ROM.
Always using stock kernel.
No tweaks.
have you downloaded any apps? they might be making your cpu work harder...
I like to run my setup for a day before I download any apps, so no.
I've also wiped internal storage.
VikingoRMCF said:
I like to run my setup for a day before I download any apps, so no.
I've also wiped internal storage.
Click to expand...
Click to collapse
this is very strange. but you have flashed a new rom correct? that may be your issue... some roms come pre oc'd and not all phones can handle it
VikingoRMCF said:
I like to run my setup for a day before I download any apps, so no.
I've also wiped internal storage.
Click to expand...
Click to collapse
What Rom are you running ? What Kernel ? What are your Min / Max settings for the Kernel ? Voltages ?
prboy1969 said:
What Rom are you running ? What Kernel ? What are your Min / Max settings for the Kernel ? Voltages ?
Click to expand...
Click to collapse
Previous page.
VikingoRMCF said:
Nein.
Some info:
Any ROM.
Always using stock kernel.
No tweaks.
Click to expand...
Click to collapse
Must have missed that . At this point I would try a different Kernel. I suggest Ktoonsez Kernel.
If anyone is still having issues here.
Apps repeatedly doing wakelocks, Phone becoming hot while on standby or on charging indicates that theres a ton of background processes going while its charging.
And that includes weather updating, widgets with high refresh rate, auto-sync enabled automatically to turn on or off via file tweaks or utility applications.
I've been using CarbonRom and the only time it gets hot is when the phones at it's peak playing graphical games.
Mines is stock kernel but I have tweaked scripts that turn off my CPU's 2nd core while on standby,
and having SetCPU Auto clock the processor to be at its 2nd lowest to very lowest while screen off, and have
it clocked midranged 702-801 while screen on without doing any UV or OV.
I would also have force GPU Rendering checked and disable hardware overlays when im not using anything on the phone.
My battery life is 6-10 hours screen on web browsing, reading articles, watching movies / videos on netflix ~ Depends.
If I charged the battery and calibrate it and left it off standby without touching it, it can last around 3-4 day's depending on my
background wakelocks on messaging or any type of SMS or alerts recieved.
Also using Greenify to hibernate Ram hungry apps. and I'd usually freeze certain apps that aren't killable to save battery life.

[Q] Huge FPS drops in games

I searched the forum and saw some people had similar issues but nothing in the other threads seems to have fixed their issue.
I am having huge FPS drops in games after about 5 minutes of play time. I never had this problem when I was on stock, and ever since I have tried a few different ROMs and all of them have the same result. I found that if I turn my screen off for ~30 seconds the lag will go away for about 2 minutes but just comes right back.
Currently running SOKP ROM.
Games that I play are Valkyrie Crusade, The Gate, Heroes of Camelot.
Any help would be appreciated!
Ok, so the issue seems to only be present while charging. Does anyone have any suggestion on how to alleviate this issue without unplugging my phone from the charger? My battery does not last as long as it used to and I can only play for about a half hour before my phone battery starts to get extremely low.
Does your Rom allow for Changing of Governors and Voltages ? If so, then try Trickster Mod. If it does not allow such changes then switch to a AOSP Rom and then Flash KT747 Kernel by @ktoonsez. that kernel has profiles specifically tailored for Gaming.
That kernel was not compatible with AOKP Roms until Recently. I do not use AOKP Roms so I am not sure if AOKP Code has changed to make it compatible.
Perseus71 said:
Does your Rom allow for Changing of Governors and Voltages ? If so, then try Trickster Mod. If it does not allow such changes then switch to a AOSP Rom and then Flash KT747 Kernel by @ktoonsez. that kernel has profiles specifically tailored for Gaming.
That kernel was not compatible with AOKP Roms until Recently. I do not use AOKP Roms so I am not sure if AOKP Code has changed to make it compatible.
Click to expand...
Click to collapse
The app from the app store? I don't know anything about Trickster mod.
Yes its the App in Play Store. If you are not comfortable tweaking those parameters, then leave that alone.
Perseus71 said:
Yes its the App in Play Store. If you are not comfortable tweaking those parameters, then leave that alone.
Click to expand...
Click to collapse
Any recommendations on settings then?
Explore the thread on Undervolting / Overclocking in my signature. Let me know if you are comfortable with making that kind of changes.
Perseus71 said:
Explore the thread on Undervolting / Overclocking in my signature. Let me know if you are comfortable with making that kind of changes.
Click to expand...
Click to collapse
I checked it out but it seems pretty confusing.. still not sure what settings I should change. Why would it be different from stock rom though?
In that case, please use the App "Fast Reboot Pro". It also creates a shortcut on your homescreen that, when clicked, will improve performance.
You may also want to apply V6 Supercharger Mod by @zeppelinrox.
Perseus71 said:
In that case, please use the App "Fast Reboot Pro". It also creates a shortcut on your homescreen that, when clicked, will improve performance.
You may also want to apply V6 Supercharger Mod by @zeppelinrox.
Click to expand...
Click to collapse
My ROM is 4.4.2. Do I still need to apply the Ultimatic Jar Patcher?
I have not kept up with the more recent developments on that thread. Search the thread or post the question on it.
If your battery is getting low that quickly and easily your best bet, imo, is to replace it. Aa they age and lose capacity they also lose the ability to run the hardware effectively. Youre probably seeing lag because it just isnt able to provide the stable voltage required to run the cpu/gpu at full throttle very long.
Sent from my SGH-T999 using Tapatalk
Perseus71 said:
I have not kept up with the more recent developments on that thread. Search the thread or post the question on it.
Click to expand...
Click to collapse
I tried these modifications and I am still getting terrible FPS drops.
Your only other option is Fast Reboot Pro in lieu of Governor changes and Overclocking.

Thermanger Update and Myths/Fiction about Custom Roms Overheating vs Stock

Here is updated Thermanager, which could be flashed in recovery. I have made some changes after I played Asphalt game for about one hour. With this update, on performance governor the temperature never went higher than 58. And we are talking 1 hour straight. I doubt you can have that on stock. What was interesting that performance governor produced less heat than interactive, which supports my claim that when cpu jumps frequencies, it creates additional overhead.
Now, regarding myths and fiction about stock rom not overheating. There are some dudes on this forum who complain that their Z1 overheats to 70+ on custom roms when they play their beloved games; on stock, they say, there is no overheating.
Here is a short answer. You, guys, don't know what you are talking about.
Custom roms (and custom kernels) give you tools that are not available in stock. You just have to learn how to read/use them. Here is one example: some roms allow you to have internal cpu temperature on screen. Now that you have it, you watch. When it hits 70, you panic, but if you touch the back door, it will be barely warm. So, when you are on stock and without temperature reading, you think your phone is not overheating, while it can still have 65-70.
I used a modified version of M5 kernel compiled with GCC 5.2.1 Ubertc; CPU at 2457; performance governor, inteliplug balance with touch boost disabled; GPU overclocked to 600 with msm-adreno-tz idle wait 30 and workload 3; swapiness 10; enthropy 1024 read/write. That was on DU rom, but I bet the result would be the same on Jaguar and some other custom roms.
lol, that dude is Me, and I will try this, in the stock rom I can see an process running as overheat manager or something, I think it might have to do something with it. I'm sure that my device got heated very much, I didn't meant to offense but you seems to got it wrong. btw I will try this. I use Jaguar atm.
Thanks
I don't think that my phone won't reach 60 C on stock, but I like watching YouTube, so I can see how fast it warms. (I have xposed module that shows me cpu temp even on stock). And as much as I can say my phone warms faster on custom roms than on stock. No matter what governor I use.
Also all animations (like status bar showing) are kind of laggy on custom roms. I don't know it it got better in past 2 months, but last time I used custom rom my phone reached 50C even only with chrome.
Interesting thing is that this all (including animations) is not present on 3.10 kernel, but there are no usable roms at the moment with 3.10 kernel, so I have to use stock.
SuperLamic said:
I don't think that my phone won't reach 60 C on stock, but I like watching YouTube, so I can see how fast it warms. (I have xposed module that shows me cpu temp even on stock). And as much as I can say my phone warms faster on custom roms than on stock. No matter what governor I use.
Also all animations (like status bar showing) are kind of laggy on custom roms. I don't know it it got better in past 2 months, but last time I used custom rom my phone reached 50C even only with chrome.
Interesting thing is that this all (including animations) is not present on 3.10 kernel, but there are no usable roms at the moment with 3.10 kernel, so I have to use stock.
Click to expand...
Click to collapse
So, what's the temperature your xposed module shows on stock under stress?
optimumpro said:
So, what's the temperature your xposed module shows on stock under stress?
Click to expand...
Click to collapse
Usually after 20-30 minutes of YouTube it's around 53-54°C
SuperLamic said:
Usually after 20-30 minutes of YouTube it's around 53-54°C
Click to expand...
Click to collapse
Which browser or is it a youtube app? I have similar temps on Firefox and about 44-48 when using Chromium (not chrome).
ScatteredHell said:
lol, that dude is Me, and I will try this, in the stock rom I can see an process running as overheat manager or something, I think it might have to do something with it. I'm sure that my device got heated very much, I didn't meant to offense but you seems to got it wrong. btw I will try this. I use Jaguar atm.
Thanks
Click to expand...
Click to collapse
Overheat manager: whatever it is, all it does is throttling and thermanager does the same on custom roms. So, the trick is to throttle enough without you noticing any lags...
optimumpro said:
Which browser or is it a youtube app? I have similar temps on Firefox and about 44-48 when using Chromium (not chrome).
Click to expand...
Click to collapse
It's a YouTube app. Really? It's weird, maybe I'll try, but I can see the difference on battery time when I come home from school - on stock I have ~70% and on custom roms I have ~50. Anyway I'll try and report after few days.
Okay, I can say that custom roms are now ok for me when it come to battery life. I compared usual usage of mine on stock and custom roms and now it really gives me same battery life. The only change I made this time is that I used DU instead of Jaguar and this thermalmanager settings.
Though there are still two things that bother me on custom roms: laggy UI - I don't know what causes that, I tried changing lot of cpu/gpu thing to sort it out, but nothing helped. And the other one is headset connecting - I have to press and hold (for a little while) all the buttons on headset to get it recognized.
I'm returning back to stock, but I can say that now is overheating on custom roms gone.
Thank you, @optimumpro
SuperLamic said:
Okay, I can say that custom roms are now ok for me when it come to battery life. I compared usual usage of mine on stock and custom roms and now it really gives me same battery life. The only change I made this time is that I used DU instead of Jaguar and this thermalmanager settings.
Though there are still two things that bother me on custom roms: laggy UI - I don't know what causes that, I tried changing lot of cpu/gpu thing to sort it out, but nothing helped. And the other one is headset connecting - I have to press and hold (for a little while) all the buttons on headset to get it recognized.
I'm returning back to stock, but I can say that now is overheating on custom roms gone.
Thank you, @optimumpro
Click to expand...
Click to collapse
OK. Nice to hear that about battery life and overheating. With regard to lagging: it is not cpu, but rather animations. Either disable them completely in developer options or in DU you can go to tweaks and pick and choose whatever animation you want. I just disable all animations and have absolutely no lag.
SuperLamic said:
Okay, I can say that custom roms are now ok for me when it come to battery life. I compared usual usage of mine on stock and custom roms and now it really gives me same battery life. The only change I made this time is that I used DU instead of Jaguar and this thermalmanager settings.
Though there are still two things that bother me on custom roms: laggy UI - I don't know what causes that, I tried changing lot of cpu/gpu thing to sort it out, but nothing helped. And the other one is headset connecting - I have to press and hold (for a little while) all the buttons on headset to get it recognized.
I'm returning back to stock, but I can say that now is overheating on custom roms gone.
Thank you, @optimumpro
Click to expand...
Click to collapse
Oddly enough, I find custom ROMs hae smoother animations than stock, in my phone. But I don't have good battery life when compared to stock..

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