Hello all
My Galaxy Note runs hot.
Can someone tell me, preferably in methodical order, the steps that should be followed to sort out overheating issues.
If you watch the Australian Open tennis then you will see how hot it gets here in summer at the moment!
1. Root
2. Install SetCPU
3. Set some temperature profiles so when your Note reaches a certain temperature the clock speed is automatically dropped
4. Close unused apps and stuff
5. Don't use 100% brightness
If I was you, I would use, in fact, lowest brightness when indoors, and underclock the CPU (even when it's not hot, as opposed to what vantt1 says).
I underclocked my Sensation from 1'5 Ghz to 1'0 Ghz (both cores). And boy, It's running smooth with ICS, no lag at all.
In fact, my settings are:
Min clock: 192 Mhz
Max clock 1005 Mhz (or something around that)
Governor: Ondemand
But your CPU is probably different than mine... Keep in mind that I underclocked around 30% of it's total capacity. You might want to do the same.
Also, direct sunlight causes overheating. (Might be obvious, but when the sun hits our skin, the body starts several cooling methods, so that you only start to notice the overheating around 30 minutes of direct exposure... And 30 mins of direct sunlight for a phone is a total kill, so also one more tip for when you're on the beach: cover it with clothes, or something. It will also decrease posibilities of thieves )
My Galaxy S2 doesn't really overheat when clocked at 1.4 GHz ondemand. It's the maximum safe clock for the Exynos 4210 found in the S2 and Note. The speed is there when I need it (but that's only 2% of the time) and when I don't, it's around 200-800 MHz. I have a solid aluminium case on it, so when left on the table it can go down to 25°C. In my pocket it's a bit higher at 34°C but it's acceptable. When I play GTA3 though, it can go up to 56°.
Sent from my GT-I9100 using XDA App
force reboot of phone isn't always overheat. the kernel also depends on how high you can overclock.
Related
I am using:
Rom: Insertcoin
Kernel: Bricked 1.5
Could you give me some tips to setup the best way setcpu.
I've seen some guys mentioning setting lowest frequency to around 400 and etc. and I don't know why. Could you give me some advice on setting up the program correctly.
Hi, I personally set the lowest frequency to somewhere around the 500mhz and smaller and set the govenor to ondemand as this will only use the the speed of your kernel when its needed thus, will use less battery.
Why around 500mhz and not 194. And will 5 sec refresh on the widget drain much battery? It's now on passive because I don't want to loose battery on bull****.
SsBloodY said:
Why around 500mhz and not 194. And will 5 sec refresh on the widget drain much battery? It's now on passive because I don't want to loose battery on bull****.
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Click to collapse
I put at 500mhz because sometimes the phone may slow down on its own and I don't think that setting the refresh rate to 5sec will steal much battery because its only a small widget
Any more opinions? Would be nice
Don't set it to 500 minimum. This will lock the phone to at least 500 mhz at all times and will cause substantial battery drain.
Go with 192 minimum or the next step up.
Sdobron said:
Don't set it to 500 minimum. This will lock the phone to at least 500 mhz at all times and will cause substantial battery drain.
Go with 192 minimum or the next step up.
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Click to collapse
+1 on that.
My personal settings (most of the time) are:
Screen On 192/648
Screen Off 192/384
Governer OnDemand
Sometimes I up the frequency if I need to run something heavy, not all that often though.
agreed 192 minimum is much better. if you are having issues with the phone being slow then get rid of sense...
Just wanted to say thanks to the three users above this post as I tried 192mhz and it is in fact a lot better now (please realise I've only just turned 17 and play a lot of games hence 500mhz)
I have downloaded SetCPU in my SGS2 and capped my processor to max-1200mhz and min-600mhz. Will it harm my phone if I switch to performance mode which is max & min at 1200mhz (full capacity).
Well I think it depends on the hardware. But I would never recommend to push it at the max frequency, first of all you will decrease your battery life as well as your CPU lifetime since it will produce more heat.
Obviously it can depends of how many times a day you are using your phone to that max clock. If you are experiencing spontanous reboots that means the clock is too high, if not, well.. up to you to keep it like that.
I overcloked my Hero at 710 Mhz for about 2 years (the max capacity it's 748Mhz) and my CPU suppose to run on stock at 525mhz. I can feel my phone been a little hotter compare to the original clock but it has survived until now. (finger crossed)
But seriously.... ask yourself do you REALLY need all that power from your phone?
Doesn't matter which ROM, which kernel (except stick, didn't stay on there long enough to notice), when everything are off or idling, CPU would still constantly kick up to 601mhz (unless i under clock of course), never really sleep/idle at 214 or whatever
Y?
Seems like this CPU can never sleep, or even idle, thus killing the battery
this phone (and alot of newer ones) are using an idea called Race to idle.
this means that the cpu will kick its cpu speed up higher than it needs to get things done faster, so it can get back to a low power idle state faster.
In reality your cpu is really going in and out of sleep states hundreds or thousands of times a second, the frequency is just kicked up so that it can spend less time computing, and more time sleeping.
for the hell of it try downloading an app that shows you cpu usage in %
that number is the amount of time that the cpu is in a fully awake state vs being in its first stage sleep state, LP1.
if nothing happens for a bit longer than it will go into an even lower power state called LP2. frequency can still be set to a higher number (like 600mhz or even 1ghz) but the cpu is actually not doing any calculations. its sleeping till something needs it.
also, changing cpu speed takes a long time (cpu wise), the cpu has to pause, change speed, then wake up. so the less it does this the less lag you have.
^The guy above is right, you can put it to 1.5 gHz and it wouldn't die sooner, what makes the difference is how much you use the phone. If you listen to music and text, you don't need it to go farther than 800 mHz, but the extra boost with make it faster but also use more energy.
What background apps are open?
Klathmon said:
this phone (and alot of newer ones) are using an idea called Race to idle.
this means that the cpu will kick its cpu speed up higher than it needs to get things done faster, so it can get back to a low power idle state faster.
In reality your cpu is really going in and out of sleep states hundreds or thousands of times a second, the frequency is just kicked up so that it can spend less time computing, and more time sleeping.
for the hell of it try downloading an app that shows you cpu usage in %
that number is the amount of time that the cpu is in a fully awake state vs being in its first stage sleep state, LP1.
if nothing happens for a bit longer than it will go into an even lower power state called LP2. frequency can still be set to a higher number (like 600mhz or even 1ghz) but the cpu is actually not doing any calculations. its sleeping till something needs it.
also, changing cpu speed takes a long time (cpu wise), the cpu has to pause, change speed, then wake up. so the less it does this the less lag you have.
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Click to collapse
Thanks, and i know about the race to idle. 1. My previous phone was a galaxy s 4g. when in idle, it stays at 100mhz, lowest speed and stay there til the screen goes out. Great idle battery life. Cpu info and the likes shows large percent of time in sleep state based on reading the time in state file
2. I haven't found a single kernel that support the time in state file (various cm, faux, morfic, harsh, can't remember the rest, sorry devs - gb n ics). Without this file, we cannot determine time in sleep
Bonus, i use to have a viewsonic tab with same harmony tegra 2 board as the g2x and it can't get 3 days of standby compared to other tablets that can do over a week. Also due to sleep issue. And that don't even have cell data. Wifi off too
atb1183 said:
Thanks, and i know about the race to idle. 1. My previous phone was a galaxy s 4g. when in idle, it stays at 100mhz, lowest speed and stay there til the screen goes out. Great idle battery life. Cpu info and the likes shows large percent of time in sleep state based on reading the time in state file
2. I haven't found a single kernel that support the time in state file (various cm, faux, morfic, harsh, can't remember the rest, sorry devs - gb n ics). Without this file, we cannot determine time in sleep
Bonus, i use to have a viewsonic tab with same harmony tegra 2 board as the g2x and it can't get 3 days of standby compared to other tablets that can do over a week. Also due to sleep issue. And that don't even have cell data. Wifi off too
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Click to collapse
that's due to the 'unique' governor built into tegra. it likes to kick the speed up at the slightest need for power, and keep it there just in case you want to do something. its sure as hell an eager little bugger
on the galaxy s 4g you can change the governor to change its behavior, your probably using a fancy Linux governor that is tweaked to be damn near perfect, Nvidia tried to design its governor from scratch... the success they had is debatable, but its different from what your used to.
Nvidia seemed to prefer performance over battery life, and its definitely not the most standby friendly, but the good news is that custom kernels and roms allow you to change that
Thanks. That's a satisfactory and most likely to be true. Used on demand gov on the gs4g w plenty of tweaks. Hopefully we can do similar tweaks in here on the new kernels
Yeah for a light user like myself, I only use the phone for text/fb/twitter/email and music, so I usually keep my clock at 800mhz, and well.....when i need to play games i just clock it to 1.2kmhz, thats usually enough for me, havnt lag in any 3d games i played yet so far.
and sell, if you open the setcpu and watch it for like 20 seconds, you should notice it never going above 601 on idle, mine kinda bounce between 389 and 601 with 389 most of the time. Which kernel/rom you using anyways? Just wondering.
I notice the top of the phone gets really hot when I play games. So far I've only been testing plants vs zombies 2 with a cpu temp app and the cpu temp averages at 62 celsius which is fine on a cold day. However, on a warm day it tends peaks into the 70s and my cpu temp alarm goes off and I can't play more than a few minutes. I've tried to use powersave mode to lower the clock speed and it doesn't make a difference. I think the sandstone backing doesn't dissipate heat as well as a normal plastic/metal backing. I know the cpu is supposed to have thermal throttling, but I'm wondering if there are any non-stock kernels that may have a more aggressive thermal throttle.
Flash CM11 and a costum kernel. Any of them will let you over and underclock, over and undervolt, raise or lower throttling, but not on stock rom.
still overheating
I've flushed CM11 stockrom.
Now when i use waze and charge the opo it gets overheated too.
+ the touch won't work correctly.
Is there another way to stop this?
I have been able to fix quite a bit of thermal throttling experienced in multiple benchmark runs by tweaking with the thermal-engine configuration file. With just a few changes and with the copper shim mod I can now run geekbench for as many five times with almost no drop in score. After that I get no thermal throttling in single core but I have it setup to disable two cores after it hits 55C CPU temp in core 4 and 7. I use CPU Z to see actual CPU temp from the sensor readings. Even after 8 Geekbench runs the two cores are still running at full speed and the phone is registering 44C. It's warm but not hot by any means.
If anyone is interested in playing around with it just look for the file in \System\etc\thermal-engine-8994.conf
Most of it is just two adjustments. One for Max temperature at which it will throttle and the one below is the temperature at which throttling stops.
probaina said:
I have been able to fix quite a bit of thermal throttling experienced in multiple benchmark runs by tweaking with the thermal-engine configuration file. With just a few changes and with the copper shim mod I can now run geekbench for as many five times with almost no drop in score. After that I get no thermal throttling in single core but I have it setup to disable two cores after it hits 55C CPU temp in core 4 and 7. I use CPU Z to see actual CPU temp from the sensor readings. Even after 8 Geekbench runs the two cores are still running at full speed and the phone is registering 44C. It's warm but not hot by any means.
If anyone is interested in playing around with it just look for the file in \System\etc\thermal-engine-8994.conf
Most of it is just two adjustments. One for Max temperature at which it will throttle and the one below is the temperature at which throttling stops.
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Click to collapse
Without your copper shim mod have you found any better but safe values we can try?
At least no thermal throttle until 55 celsiius
It should be safe without the copper shim. The thermal pad it comes with works pretty well. It will still thermal throttle to whatever temperature you set it at so it won't cause any harm.
I've set the Big cluster to a max of 65C and a single A57 core to up to 71C and haven't had any problems yet. I used to get horrible performance with PPSSPP emulator. When running Tony Hawk Project 8 in PPSSPP after 30 seconds of gameplay It used to drop to 6fps and now it can sustain over 20fps after reaching 71C on a single A57 core. I only saw a maximum battery temperature of 40C and the device wasn't noticeably warmer than it was with the default thermal settings.
probaina said:
It should be safe without the copper shim. The thermal pad it comes with works pretty well. It will still thermal throttle to whatever temperature you set it at so it won't cause any harm.
I've set the Big cluster to a max of 65C and a single A57 core to up to 71C and haven't had any problems yet. I used to get horrible performance with PPSSPP emulator. When running Tony Hawk Project 8 in PPSSPP after 30 seconds of gameplay It used to drop to 6fps and now it can sustain over 20fps after reaching 71C on a single A57 core. I only saw a maximum battery temperature of 40C and the device wasn't noticeably warmer than it was with the default thermal settings.
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[SS-LITTLE_CLUSTER_management]
algo_type ss
sampling 10000
sensor xo_therm
device cluster0
set_point 52000
set_point_clr 42000
action_type 10000
I should change for example here set_point to 70000? This is how it works?
kutulu32 said:
[SS-LITTLE_CLUSTER_management]
algo_type ss
sampling 10000
sensor xo_therm
device cluster0
set_point 52000
set_point_clr 42000
action_type 10000
I should change for example here set_point to 70000? This is how it works?
Click to expand...
Click to collapse
Well yes. Except that's the little cluster and they don't get that hot normally. It's the big cluster that needs to be modified. I also tuned my display thermals so the screen wouldn't get so dim when the phone gets warm. Here you can look over my configuration if you want.
https://www.dropbox.com/s/1yve5d0m7uin0ga/thermal-engine-8994.conf?dl=0
probaina said:
Well yes. Except that's the little cluster and they don't get that hot normally. It's the big cluster that needs to be modified. I also tuned my display thermals so the screen wouldn't get so dim when the phone gets warm. Here you can look over my configuration if you want.
https://www.dropbox.com/s/1yve5d0m7uin0ga/thermal-engine-8994.conf?dl=0
Click to expand...
Click to collapse
Thanks i will try them!!
your settings somehow "unlocked" my phones cpu. lol in geekbench I found an increase of performance of 200 points in multicore from 4020 I had before maximum , now nearly 4300 .It is impressive. also if I run 6-7 geekbench in a row there is a decrease everytime ex 4200 4050 3900 3600..... but temperature stays 45 degree.
I will test them more later.
http://browser.primatelabs.com/user/73366
Someone try this?
Wysłane z mojego LG-H955 przy użyciu Tapatalka
Other than the two of us?
kutulu32 said:
your settings somehow "unlocked" my phones cpu. lol in geekbench I found an increase of performance of 200 points in multicore from 4020 I had before maximum , now nearly 4300 .It is impressive. also if I run 6-7 geekbench in a row there is a decrease everytime ex 4200 4050 3900 3600..... but temperature stays 45 degree.
I will test them more later.
http://browser.primatelabs.com/user/73366
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Click to collapse
Thanks for sharing your results. That's the highest multi core score I've seen on our phones. I never gotten that high of a multi core score. Glad to help. My configuration also tweaked the battery thermal settings so now you should see faster charge times as well. The default charge rates had really conservative thermal settings and the high speed charge would drop after a while but now it will 2.2 to 2.4 amp charge through the whole charge.
probaina said:
Thanks for sharing your results. That's the highest multi core score I've seen on our phones. I never gotten that high of a multi core score. Glad to help. My configuration also tweaked the battery thermal settings so now you should see faster charge times as well. The default charge rates had really conservative thermal settings and the high speed charge would drop after a while but now it will 2.2 to 2.4 amp charge through the whole charge.
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Click to collapse
Yes indeed i saw a difference in chargin thanks for your effort in the configuration. I am not very fond of benchmarks but i run some in my devices after magor changes (firmware....). This device should have been speedier because of the full hd snapdragon 810 combination. I wonder if we delete the thermal config is the device gonna be speedier? I am waiting for 5.1.1 hoping for smoother rom. Lets hope soneone unlocks the bootloader!!!! I took my precautions disabling MLT lol
probaina said:
Well yes. Except that's the little cluster and they don't get that hot normally. It's the big cluster that needs to be modified. I also tuned my display thermals so the screen wouldn't get so dim when the phone gets warm. Here you can look over my configuration if you want.
https://www.dropbox.com/s/1yve5d0m7uin0ga/thermal-engine-8994.conf?dl=0
Click to expand...
Click to collapse
My phone gets really hot with those settings
I overwrote the original one ^^ has someone made a backup and can share it with me.?
I guess it depends on what you're doing but I probably wouldn't play any 3d games with those settings. Here's a copy of the original one https://www.dropbox.com/s/yb76q6qwanb9ujr/thermal-engine-8994.conf?dl=0
smouker said:
My phone gets really hot with those settings
I overwrote the original one ^^ has someone made a backup and can share it with me.?
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Click to collapse
When you apply the settings you need to give time to the phone to 'absorve' them.
Run a couple of benchmarks, test a 4k video, reboot the phone 3-4 times, close it also.
I havent noticed higher tdmperature of 45 celsius.
kutulu32 said:
When you apply the settings you need to give time to the phone to 'absorve' them.
Run a couple of benchmarks, test a 4k video, reboot the phone 3-4 times, close it also.
I havent noticed higher tdmperature of 45 celsius.
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Click to collapse
I noticed that haha now its fine
kutulu32 said:
Yes indeed i saw a difference in chargin thanks for your effort in the configuration. I am not very fond of benchmarks but i run some in my devices after magor changes (firmware....). This device should have been speedier because of the full hd snapdragon 810 combination. I wonder if we delete the thermal config is the device gonna be speedier? I am waiting for 5.1.1 hoping for smoother rom. Lets hope soneone unlocks the bootloader!!!! I took my precautions disabling MLT lol
Click to expand...
Click to collapse
I'm not sure what would happen if you just deleted the file. Maybe it'll revert to some default, or perhaps it won't thermal throttle at all which would result in auto shut off when it overheats. Probably not worth risking it without a custom recovery in case it doesn't boot.
I have notice that my phone is way quicker now. It was fast before but now it's a beast when I push it hard. Also things like PPSSPP emulator was useless with the default thermal throttling now it can beat my Tegra note 7 with 4 A15 cores at 2.1ghz at it.
Was there a problem with your settings? I noticed your settings you had shared on dropbox are no longer available.
uh60james said:
Was there a problem with your settings? I noticed your settings you had shared on dropbox are no longer available.
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Click to collapse
The folder was deleted for some odd reason. I was able to restore it so the link should work now. Let me know how it works out for you.
A few questions about these settings.
-At the top where you have SS-Little_Cluster_management and SS-Big_Cluster_management is the set point the shutdown temp for the entire cluster?
-I think this one is self explanatory by the action listed but towards the middle where CPUx_MONITOR for each core is, is the threshold the temperature at which the entire phone shuts down?
-I'm not sure I am noticing the difference between SS-CPUx and CPU_HOTPLUG_MONITOR. Could you explain these?
uh60james said:
A few questions about these settings.
-At the top where you have SS-Little_Cluster_management and SS-Big_Cluster_management is the set point the shutdown temp for the entire cluster?
-I think this one is self explanatory by the action listed but towards the middle where CPUx_MONITOR for each core is, is the threshold the temperature at which the entire phone shuts down?
-I'm not sure I am noticing the difference between SS-CPUx and CPU_HOTPLUG_MONITOR. Could you explain these?
Click to expand...
Click to collapse
I don't want to assume I know everything about this. Everything I know about the thermal configuration file I learned from seeing others modify the LG G3 thermal config file. I also learned some by experimenting with my G Flex 2.
In my understanding SS-Little_Cluster_management and SS-Big_Cluster_management is the temperature at which the Cluster will thermal throttle when all cores in the cluster are being used at once. From what I've seen anything with "action_type 10000" means thermal throttle. The closest thing I can think off that works like that is how Intel I5 and I7 will limit turbo speed when more than one core is being used. Except in our case this is to prevent higher speeds when it reaches a certain temperature. So lets say your phone is running some heavy multithreaded app now it's going to follow the rules set in Cluster_management. The default Big Cluster temperature is set to start slowing things down when temperature reaches 48C and to not go back to full speed until the temperature drops down to 38C. One thing I find interesting is that at about 48C cluster temperatures was about where the Big cores would drop to a max of 1.5 ghz. So I'm just guessing that this setting may play a big part on the big cores max speed.
[CPUx_MONITOR] seems to shutdown the phone when the core reaches a certain temperature threshold of 120 C and I assume will not allow it to turn back on until it drops below 115C.
[SS-CPUx] on a big core seems to slow the specific core down when it reaches a temperature threshold of 85C and to not allow it to go to full speed until it drops below 55C. However this rule can be overwritten by [CPUx_HOTPLUG_MONITOR] which can shut down a core even if it hasn't reached it's maximum temperature threshold.
[CPUx_HOTPLUG_MONITOR] just tells the specific core to turn off once it reaches the temperature threshold specified. On the default configuration core 4 and 7 are set to turn off when their temperature goes above 50C. After that core 5 turns off at 58C and even core 6 turns off at 61C. At which point only the small cores will remain on.
I hope that helps somewhat.