Nexus 4 overheating issue - Nexus 4 Q&A, Help & Troubleshooting

I know that overheating in nexus 4 is common problem, but today after installing custom ROM CyanogenMod 10.1 my phone has started overheating more quickly. Is anybody know any solution of it?

Pawan24 said:
I know that overheating in nexus 4 is common problem, but today after installing custom ROM CyanogenMod 10.1 my phone has started overheating more quickly. Is anybody know any solution of it?
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Click to collapse
overheating i doubt, what was the cpu and battery temperature? just because it feels warm, doesnt mean its overheated. when it actually overheats, first the cpu will lower in cpu speed(safety), then if that doesnt help itll shutdown. is the weather around you warm btw?

+1 @simms22
Also, if it's really getting to warm your phone would run unstable.

simms22 said:
overheating i doubt, what was the cpu and battery temperature? just because it feels warm, doesnt mean its overheated. when it actually overheats, first the cpu will lower in cpu speed(safety), then if that doesnt help itll shutdown. is the weather around you warm btw?
Click to expand...
Click to collapse
Thanks for your replay, I still don't understand why my mobile has started getting warmer more quickly ever since I've installed custom rom. I've hardly played any graphics intensive game on it so far.
I don't know from where to know cpu and battery temperature. Do I need to install any application from playstore? Weather around here is warm. On average 35-40 degree temperature.

My phone CPU reaches 70˚C and battery 50˚C when driving in my car, charing with gps on a this time of the year(hot as hell here as well).
Everything seems to be find, didn't even turn itself yet so I doubt theres anything to worry about.
My gf forgot her phone in the car stand in the sun for a few hours, when she came back it wouldn't turn on until it was cooler so you can be sure your phone can take care of itself.

Maybe your governor was changed when you flashed the ROM, depending on the governor (like performance) your cpu clock speed may be increased more often then with the original governor.
You can check your governor with apps like no-frills cpu or setcpu and check the temperatures with cpu z

Pawan24 said:
Thanks for your replay, I still don't understand why my mobile has started getting warmer more quickly ever since I've installed custom rom. I've hardly played any graphics intensive game on it so far.
I don't know from where to know cpu and battery temperature. Do I need to install any application from playstore? Weather around here is warm. On average 35-40 degree temperature.
Click to expand...
Click to collapse
its easier to use an app for battery and cpu temp. being 35-40C around you, id expect the phone to be warm most of the time. anyways, after installing a custom rom your device spends a lot of time syncing stuff. so itll be a little warmer than normal. after about a full battery cycle it should stop, and will be a little cooler. also, a reboot after several hours after a rom flash should help a little too.

Ok, thanks for your quick response.

Related

[Q] Heating problem

it's getting hot within a 10-15 min. last day i have just take 2-3 picture of my friend from N4 and it feel hot in hand and same happened at home also is it normal with N4.
GS150R said:
it's getting hot within a 10-15 min. last day i have just take 2-3 picture of my friend from N4 and it feel hot in hand and same happened at home also is it normal with N4.
Click to expand...
Click to collapse
You may use an app such as System Tuner to watch your CPU temperature. Mine get 50 celcius after 15minutes playing NFS MW... I dont know if it is still normal.
What version are you on? Mine used to be uncomfortably warm, but since 4.2.2, that has been fixed for me.
Sent from my Nexus 4
GS150R said:
it's getting hot within a 10-15 min. last day i have just take 2-3 picture of my friend from N4 and it feel hot in hand and same happened at home also is it normal with N4.
Click to expand...
Click to collapse
Hi,
It feels hot... its very subjective without a real measured CPU or battery temp. Like opticaldh said, install an app with monitoring CPU temp and see. What kernel ?
Also what is the battery temp?
opticaldh said:
You may use an app such as System Tuner to watch your CPU temperature. Mine get 50 celcius after 15minutes playing NFS MW... I dont know if it is still normal.
Click to expand...
Click to collapse
Hi,
Normal with these kind of games... But without more informations, overclock, underclock, undervolt, what kernel?
In any case with such of but playing heavy game I don't see where is the problem.
You can also search in the Nexus 4 General and Nexus 4 Q&A, Help & Troubleshooting sections there is another threads...
nhatters said:
What version are you on? Mine used to be uncomfortably warm, but since 4.2.2, that has been fixed for me.
Sent from my Nexus 4
Click to expand...
Click to collapse
at first use it feel hot(over a wifi) at the top of the back panel then (with 4.2.2)i tried to connect it to my pc running win-xp but fail in between it behaves abnormal after some 2-3 restart it work pretty normal(now i am using Bluetooth to share data to pc) but still some lag in touch and heating problem.
viking37 said:
Hi,
It feels hot... its very subjective without a real measured CPU or battery temp. Like opticaldh said, install an app with monitoring CPU temp and see. What kernel ?
Also what is the battery temp?
Hi,
Normal with these kind of games... But without more informations, overclock, underclock, undervolt, what kernel?
In any case with such of but playing heavy game I don't see where is the problem.
You can also search in the Nexus 4 General and Nexus 4 Q&A, Help & Troubleshooting sections there is another threads...
Click to expand...
Click to collapse
at first use it feel hot(over a wifi) at the top of the back panel then (with 4.2.2)i tried to connect it to my pc running win-xp but fail in between it behaves abnormal after some 2-3 restart it work pretty normal(now i am using Bluetooth to share data to pc) but still some lag in touch and heating problem.
viking37 said:
Hi,
Normal with these kind of games... But without more informations, overclock, underclock, undervolt, what kernel?
In any case with such of but playing heavy game I don't see where is the problem.
You can also search in the Nexus 4 General and Nexus 4 Q&A, Help & Troubleshooting sections there is another threads...
Click to expand...
Click to collapse
I am on Franco kernel, fast CPU, UV 150 (Default for 384Hz is 850, now it is 700). That's what makes me worry.
My Nexus has been getting uncomfortably hot. I first noticed it last night after getting to a friends place and took the phone out. It was really hot and the battery had dropped about 20% for a 15 minute drive. I checked the battery and Google Maps was showing at the top with the most usage even though it wasn't enabled.
I then proceeded to check the settings in Maps and turned off all the location tracking stuff which was unfortunately enabled.
However, even today my phone was again quite warm after driving around. Battery didn't even show Google Maps so that wasn't the cause.
It may have something to do with signal issues always trying to get the strongest signal as it doesn't happen when I am at home and not moving around.
Maybe your friend is hot
sent from my nexus 4; cat on lap, beer in hand
Please help me.how to overcome or reduce heating problem of nexus 4.
is this your first smartphone? they all get "hot"
Only way to really reduce heat without an impact on performance would be to undervolt. Another way would be to underclock. Both you need a custom kernel to do.
IINexusII said:
is this your first smartphone? they all get "hot"
Click to expand...
Click to collapse
Yes! it is.
Detailed said:
Only way to really reduce heat without an impact on performance would be to undervolt. Another way would be to underclock. Both you need a custom kernel to do.
Click to expand...
Click to collapse
Which kernel do you preferred.
GS150R said:
Yes! it is.
Click to expand...
Click to collapse
well its normal then
@Detailed, @opticaldh, shutup and stop telling people to undervolt, youll just get them into more trouble.
Matrix kernel runs at 288 MHz when idling, you can under volt it at around 650ma there.
I am running Motley kernel, idling at 308 MHz, UV at 700 ma. The only time I notice my n4 getting hot is when I use GPS and charging simultaneously.
Sent from my Nexus 4 using xda premium
i don't have a problem with heating on my Nexus 4, running latest franco kernel + uv settings makes it a lot cooler than before, when i don't use uv settings it heats up too pretty fast but with those settings it even stays cool on benchmarks and stability tests, cause i don't play on my Nexus 4, could try that out too to see if it gets hot. well it gets slightly warm but never "hot" i would never call it that.
IINexusII said:
well its normal then
@Detailed, @opticaldh, shutup and stop telling people to undervolt, youll just get them into more trouble.
Click to expand...
Click to collapse
OK.thanks for your help.
jamesc760 said:
Matrix kernel runs at 288 MHz when idling, you can under volt it at around 650ma there.
I am running Motley kernel, idling at 308 MHz, UV at 700 ma. The only time I notice my n4 getting hot is when I use GPS and charging simultaneously.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
OK . I am try this.
Ƶero said:
i don't have a problem with heating on my Nexus 4, running latest franco kernel + uv settings makes it a lot cooler than before, when i don't use uv settings it heats up too pretty fast but with those settings it even stays cool on benchmarks and stability tests, cause i don't play on my Nexus 4, could try that out too to see if it gets hot. well it gets slightly warm but never "hot" i would never call it that.
Click to expand...
Click to collapse
OK. I am try this.

[Q] [email protected] 74C, [email protected] 45C after 4 mins of Stability Test! what to do?

My N4 gets very hot and very fast; after just 4 mins of running stability test 2.7 CPU is at 74C and Battery at 45C...and google's answer was factory reset..... what should i do now? :'(
Note: I'm running stock rom and kernel...
jphantomx said:
My N4 gets very hot and very fast; after just 4 mins of running stability test 2.7 CPU is at 74C and Battery at 45C...and google's answer was factory reset..... what should i do now? :'(
Note: I'm running stock rom and kernel...
Click to expand...
Click to collapse
stop running the stability test. thats what the stability test does. now all you are doing is pushing your phones cpu for no reason, and crying about its temperature. good grief!
But it is normal? I know it should get hot but not this fast.. Basically if I run any heavy game for more than 15mins it will get very hot......
Were you charging via usb/ac/orb at the time?
Nope, the idle temp of the CPU is ~40C and Battery is ~30C
jphantomx said:
But it is normal? I know it should get hot but not this fast.. Basically if I run any heavy game for more than 15mins it will get very hot......
Click to expand...
Click to collapse
jphantomx said:
Nope, the idle temp of the CPU is ~40C and Battery is ~30C
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Click to collapse
its right in the middle of the normal range. sometimes it can get hotter, faster, depending how much you push the cpu/gpu. and it will coll down fast too. idle temp will depend on the surrounding temperatures. remember, human body temp is 37C, so 40C is just a little warmer than your body.

[Q] Mahdi ROM: Temperature during intensive tasks!

Hi.
Question for Mahdi ROM users on the LG G2:
Coming from this thread, I'd like to know how Mahdi ROM's temperature is when you do intensive tasks, like playing games, running benchmarks etc. Does the device get hot? If possible, tell the temperature, what you were running, for how long, did the screen remain on etc.
Thanks.
Compass.
Compass Linux said:
Hi.
Question for Mahdi ROM users on the LG G2:
Coming from this thread, I'd like to know how Mahdi ROM's temperature is when you do intensive tasks, like playing games, running benchmarks etc. Does the device get hot? If possible, tell the temperature, what you were running, for how long, did the screen remain on etc.
Thanks.
Compass.
Click to expand...
Click to collapse
Anytime you run an intensive game or the like your phone will get warm, no matter what phone it is. Benchmarks get warm too, however I find those to be useless.
It isnt useless, he's collecting informations about the black lines from a few roms...at least be happy that we have such guy on our G2 section, who is willing to help out as much as he can..
simon_lefisch said:
Anytime you run an intensive game or the like your phone will get warm, no matter what phone it is. Benchmarks get warm too, however I find those to be useless.
Click to expand...
Click to collapse
If you've ever noticed anything abnormal with the temperature, please tell us. It's relevant to our interests. :good:
Compass.
kewkie said:
It isnt useless, he's collecting informations about the black lines from a few roms...at least be happy that we have such guy on our G2 section, who is willing to help out as much as he can..
Click to expand...
Click to collapse
I think you misunderstood my post. I said benchmarks are useless.
define hot, it increases 5-10 degrees for me from a 29°c default temp
bachera said:
define hot, it increases 5-10 degrees for me from a 29°c default temp
Click to expand...
Click to collapse
Hot as in "it shouldn't be at this temperature at all while doing what it's doing".
So that means 39°C tops. That's a bit above human normal body temperature. Not bad.
If I remember well, playing Plants vs Zombies 2 gave me 47°C tops in GSAM Battery Monitor, without ever rebooting.
Thanks.
Compass.
yeah max I had was 50°C, but not very long.
I guess it can shoot up higher, but for usually when doing intensive stuff, its about 39. Not to bad.
was one build it was 42 also in rest. That wasn't to long though. pretty cool, new build and fixed haha
@Compass Linux - my device gets extremely hot on any aosp rom even on normal usage, like web browsing, texting, checking emails and reading certain articles on the web, the cpu temp ranges from 50*C-60*C at times even 70*C and it gets throttled down as i set my tmep trottle at 70*C.
battery temps range between 27*C to 43*C which is NOT normal so im no longer on any aosp roms. it scares me as for lithium batteries temps above 35*C is bad for its life. also none of these temps are good for the phone so now im on pardus hd 7.1 and my cpu temps are within the rage of 35-50*C and battery temps from 32-35 under the tasks which i mentioned earlier.
shriom_manerker said:
@Compass Linux - my device gets extremely hot on any aosp rom even on normal usage, like web browsing, texting, checking emails and reading certain articles on the web, the cpu temp ranges from 50*C-60*C at times even 70*C and it gets throttled down as i set my tmep trottle at 70*C.
battery temps range between 27*C to 43*C which is NOT normal so im no longer on any aosp roms. it scares me as for lithium batteries temps above 35*C is bad for its life. also none of these temps are good for the phone so now im on pardus hd 7.1 and my cpu temps are within the rage of 35-50*C and battery temps from 32-35 under the tasks which i mentioned earlier.
Click to expand...
Click to collapse
cpu will happily run ~75c without throttling, max temp is 92C at which point it will turn off.
treebill said:
cpu will happily run ~75c without throttling, max temp is 92C at which point it will turn off.
Click to expand...
Click to collapse
wtf ! thats so strange !!!!!!! thats just too high for me man. i always set throttle to 70. at times even at 58*C when the ambient temps are high in my locality. anything above 80*C is bad for any processor.
shriom_manerker said:
wtf ! thats so strange !!!!!!! thats just too high for me man. i always set throttle to 70. at times even at 58*C when the ambient temps are high in my locality. anything above 80*C is bad for any processor.
Click to expand...
Click to collapse
If it was bad for the CPU why would it come from the factory to start throttling at 75?
I think you're mixing your views of desktop CPUs on to SOCs.
SOC (system on a chip) are crested to be passively cooled.
For this phone 30~50 idle/light tasks and unto 75c underload is perfectly normal and safe.
Sent from my LG-D802 using XDA Free mobile app
yeah that seems about right according to so specifications

Nexus 4 is to hot.

Hello,
I have Mahdi ROM, and tried this kernels: Hells Core, Matr1x and Ak. But my phone go very hot and the battery drain tot fast.
Phone is rooted, I run Greenify, Gmail and WhatsApp. Sync is off.
Is there any good and friendly battery kernel?
Without go to hot?
I have nog this settings in Hells Core.
Min: 384000
Max: 1026000 with ondemand
GPU: 128
Undervolted begin with: 65000
YourTheBest said:
Hello,
I have Mahdi ROM, and tried this kernels: Hells Core, Matr1x and Ak. But my phone go very hot and the battery drain tot fast.
Phone is rooted, I run Greenify, Gmail and WhatsApp. Sync is off.
Is there any good and friendly battery kernel?
Without go to hot?
I have nog this settings in Hells Core.
Min: 384000
Max: 1026000 with ondemand
GPU: 128
Undervolted begin with: 65000
Click to expand...
Click to collapse
too hot says nothing. whats the cpu temp?
anyways, if your phone gets too hot, it will hit the safety shutdown and turn itself off. anything below that temp, is not too hot. you have a quad core phone, its normal for it to get hot. with using cpu or gpu intensive apps, it can get extremely hot, and thats normal. tyhe n4 also has a glass back, and for a reason, to cool off the phone. the heat gets transfered through the glass to the surrounding air. because heat gets pushed through the back glass, it will feel hotter. again, if your phone was "too hot", it would shut itself down.
anyways, cpu shutdown temp is 100C, and you arent anywhere near it.
your battery drain is unrelated. battery life all depends on how you personally use your phone, how you set it up, what apps you use, and very much the quality of your phone/data connection.
Don't worry about the temperatures. I don't know about you but during the summer my phone heats up a LOT, and that too very often, but it doesn't harm the phone
has simms22 said, the way the phone is built you get the feeling that the phone is really hot in this time of year
the battery drain depends of the use but if it is really draining fast while idle (like 6-10% for hour IDLE) and the battery charging is inconsistent then you may have a problem with the battery
simms22 said:
too hot says nothing. whats the cpu temp?
anyways, if your phone gets too hot, it will hit the safety shutdown and turn itself off. anything below that temp, is not too hot. you have a quad core phone, its normal for it to get hot. with using cpu or gpu intensive apps, it can get extremely hot, and thats normal. tyhe n4 also has a glass back, and for a reason, to cool off the phone. the heat gets transfered through the glass to the surrounding air. because heat gets pushed through the back glass, it will feel hotter. again, if your phone was "too hot", it would shut itself down.
anyways, cpu shutdown temp is 100C, and you arent anywhere near it.
your battery drain is unrelated. battery life all depends on how you personally use your phone, how you set it up, what apps you use, and very much the quality of your phone/data connection.
Click to expand...
Click to collapse
It might not be normal, and the battery consumption may be related. I had a similar issue a while back after updating my carbon to a latest nightly, I started getting very poor battery life and the phone used to get too hot (just hotter than normal), when I checked the battery consumption, it was Google Play Services and its wakelocks.
@OP, check what's eating up all your battery..
I find that Franco kernel offers a perfect mix of performance/battery.
Apart from that I'll repeat what others said. Due to the design the nexus 4 often feels hotter than it actually is. But I can assure you that nothing will happen. If it really reaches a temperature high enough to harm your hardware the device will shutdown automatically. But it's likely you'll only reach such temperatures while running benchmarks at full power and over clocked.
Sent from my Nexus 4 using XDA Free mobile app
nexus 4 is sexy thats why shes hot
fahadsul3man said:
nexus 4 is sexy thats why shes hot
Click to expand...
Click to collapse
Made my day. Thank you, sir!

Only 4 cores are used

Hello,
I have a peculiar problem with my OnePlus Two
The faster A57 cores don't get activated, I have tried using Antutu, played Asphalt 8 And NFS NL for hours.
But the cores just won't get triggered
I'm using A1 CPU tool to monitor the same.
Even CPU Z wouldn't show me any activity on the other 4 cores while Antutu was running.
Any ideas? It's brand new can be returned
Oxygen OS - 2.1.1
A2003_14_151011
Sent from my C6602 using XDA Free mobile app
Denhot said:
Hello,
I have a peculiar problem with my OnePlus Two
The faster A57 cores don't get activated, I have tried using Antutu, played Asphalt 8 And NFS NL for hours.
But the cores just won't get triggered
I'm using A1 CPU tool to monitor the same.
Even CPU Z wouldn't show me any activity on the other 4 cores while Antutu was running.
Any ideas? It's brand new can be returned
Oxygen OS - 2.1.1
A2003_14_151011
Sent from my C6602 using XDA Free mobile app
Click to expand...
Click to collapse
I just installed A1 CPU to verify your issue.
It shows cores 0,1,2,3,4 are used at 1344ghz for me as well.
When i check with synapse (i'm on AK kernel) it shows all cores are used.
I guess it's a limitation with A1 CPU tool. Try with other tool that supports such architecure.
I was sceptical on the same but, out of the box I remembered seeing 1777 MHz frequencies.
Thanks a lot
I shall try more tools and get back.
Though I think if you're on a different kernel and had the A1 CPU tool been correct it would be redundant, Because core allocation would be done on kernel level (in my knowledge).
Sent from my iPad using Tapatalk
I know that it was already discussed but maybe someone has found a solution.
The problem is that performance of device gradually decreases proportionally to the level of the battery.
For example:
- battery is 90%, Real Racing 3 runs perfectly,
- battery is 45%, some lags appear during gameplay
- battery is 10%, heavily FPS drop, almost impossible to play
Battery saver is turned off, device is cold in all tests.
If I would like to save my battery level - I will turn on battery saver manually,
but I WANT to have good game experience not depending on battery level
This is really crazy.
Tested on stock OOS 2.1.1, with stock kernel, with Boeffla an AK, tested on Exodus ROM - everywhere I can see this weird behaviour.
May be some system files must be edited to overcame this issue?
jemcik said:
I know that it was already discussed but maybe someone has found a solution.
The problem is that performance of device gradually decreases proportionally to the level of the battery.
For example:
- battery is 90%, Real Racing 3 runs perfectly,
- battery is 45%, some lags appear during gameplay
- battery is 10%, heavily FPS drop, almost impossible to play
Battery saver is turned off, device is cold in all tests.
If I would like to save my battery level - I will turn on battery saver manually,
but I WANT to have good game experience not depending on battery level
This is really crazy.
Tested on stock OOS 2.1.1, with stock kernel, with Boeffla an AK, tested on Exodus ROM - everywhere I can see this weird behaviour.
May be some system files must be edited to overcame this issue?
Click to expand...
Click to collapse
Hi Jemcik, hi Denhot!
I'm facing the same issues on my new device and it's definately not normal!
With a battery level of 19% I was not able to get the 4 A57 cores online, which results in lower system performance. Have you found a solution?
@Denhot!
Maybe we should rename the thread into: IS OPT PERFORMANCE REALLY DEPENDENT ON BATTERY STATUS AND IS IT A ROM FEATURE OR AN ISSUE!?
I think, one of the kernel devs should be able to answer this question.
ollimi1 said:
With a battery level of 19% I was not able to get the 4 A57 cores online...
Click to expand...
Click to collapse
It looks like some system configuration files with kernels activation policy have to be edited,
but I haven't found yet which files exactly.
jemcik said:
It looks like some system configuration files with kernels activation policy have to be edited,
but I haven't found yet which files exactly.
Click to expand...
Click to collapse
I've never experienced such a function!
CPU power depending on battery voltage!? 62k with full battery, 49k with 20% battery both with same CPU temps!
Hopefully not a general problem on our side with the motherboard Voltage Regulator or something.
Have you been to a kernel thread and asked this question? If not, I will ask this in AK's kernel thread. Maybe he knows more about it!
The 4 high performance cores will only be activated when needed. What app are you using to check the core usage? Every now and then you should see 2 of the high performance cores sometimes coming to life every now and then, with the other 4 power efficent cores being more busy. Use CPU-Z to check.
Due to the way Oxygen OS's stock kernel works, only 2 of the high performance cores will ever be active, alternating between the 4 cores in an attempt to keep the phone cool and not throttle as often. If you want all 4 high performance cores to be active as well as overclocking it back to its original speeds, you'll need to flash a custom kernel.
jemcik said:
I know that it was already discussed but maybe someone has found a solution.
The problem is that performance of device gradually decreases proportionally to the level of the battery.
For example:
- battery is 90%, Real Racing 3 runs perfectly,
- battery is 45%, some lags appear during gameplay
- battery is 10%, heavily FPS drop, almost impossible to play
Battery saver is turned off, device is cold in all tests.
If I would like to save my battery level - I will turn on battery saver manually,
but I WANT to have good game experience not depending on battery level
This is really crazy.
Tested on stock OOS 2.1.1, with stock kernel, with Boeffla an AK, tested on Exodus ROM - everywhere I can see this weird behaviour.
May be some system files must be edited to overcame this issue?
Click to expand...
Click to collapse
Hi,
would like to share I don't have a similar experience, with NFS NL or Asphalt, phone was consistent with no lags even when it got unbearable to hold.
I as playing and simultaneously screen mirroring over to a TV.
Going from 65 to 25% over a long course.
I normally won't let my battery fall below 20%.
So the thing about Li-ion/pro is that as you go lower voltage decreases so to provide same power draw current increases.
Basically it would heat up faster.
That can be a reason combined with that their might be inbuilt measures to save battery like you said, nor as an engineer I would recommend you to stress your phone at those levels.
I can't explain the lag at 45%, didn't find it might try real racing 3 later to check.
Sent from my iPad using Tapatalk
trapistasajt said:
The 4 high performance cores will only be activated when needed. What app are you using to check the core usage? Every now and then you should see 2 of the high performance cores sometimes coming to life every now and then, with the other 4 power efficent cores being more busy. Use CPU-Z to check.
Due to the way Oxygen OS's stock kernel works, only 2 of the high performance cores will ever be active, alternating between the 4 cores in an attempt to keep the phone cool and not throttle as often. If you want all 4 high performance cores to be active as well as overclocking it back to its original speeds, you'll need to flash a custom kernel.
Click to expand...
Click to collapse
This is consistent with what I've noticed. The time It didn't, a simple reboot helped solve it and it hasn't occurred since.
Also these tools can't monitor the other cores, if you're rooted why not try synapse as helkat suggested
Sent from my iPad using Tapatalk
Denhot said:
This is consistent with what I've noticed. The time It didn't, a simple reboot helped solve it and it hasn't occurred since.
Also these tools can't monitor the other cores, if you're rooted why not try synapse as helkat suggested
Sent from my iPad using Tapatalk[/QUOTE
Thanks man!
I know how the S810 should work!
But I thought the performance issues have only to do with the temps. But now it seems it have also to do with the battery level.
It would be good if someone tries to reproduce the following to verify it:
1. One run Antutu benchmark with fully charged battery and room cool temps.
To be sure the conditions are the same, shut the display off for one or two minutes, than start display again, kill all recent apps and run Antutu test and note the results.
2. Than wait or do something until your battery is down to 20%, shut the display off for the same time, kill recent apps and start Antutu test run again and compare the results.
I've also tried the same after a reboot, with always the same results.
With 100% I get scores between 60 and 66k and with lower capacity (20%) I get only 48 till 50k!
I am not interested about the benchmark results, but I need to know if this only occurs on my side.
Click to expand...
Click to collapse
So, guys!
I have tested it the last few weeks and it is a fact that the performance in benchmarks is dependent by the battery level.
We have tested it with 3 devices and it is always the same.
But thank God, it seems on the devices perfomance themselves (in apps/ui) this has no effect!
But each one can replicate this behavior very easy!
ollimi1 said:
Hi Jemcik, hi Denhot!
I'm facing the same issues on my new device and it's definately not normal!
With a battery level of 19% I was not able to get the 4 A57 cores online, which results in lower system performance. Have you found a solution?
@Denhot!
Maybe we should rename the thread into: IS OPT PERFORMANCE REALLY DEPENDENT ON BATTERY STATUS AND IS IT A ROM FEATURE OR AN ISSUE!?
I think, one of the kernel devs should be able to answer this question.
Click to expand...
Click to collapse
I have the same issue! When battery level goes lower than 20%, my A57 kernels become offline. I checked this with CPU-Z and PerfMon. And this is the same on stock or custom kernel. Now I am using Boeffla kernel. The most frustrating is that my UI suffer from this. I have lot of lags in simple apps, such as calculator or some messengers.
Same issue here, there are threads in one plus forums.
I think the threashold level is at 40 % ?? They made this to keep the battery up. You can also see faster battery drop till the 40-30% mark then it is harder to kill the battery.
I am also dissapointed in this, maybe we can search the kernel sources ? Or is there a daemon app that triggers this?
I received the phone with 20%-30% battery, started an antutu knowing how powerfull 810 chip is, then boom 45k same as the previos phone i had with 801 chipset...i was like what the fxck....runing antutu again with full battery - 66k.
well i have run benchmark in back ground with few game and apps .. and checked with cpuz max that i have notice was around 50-60% cpu load still 2 off those a57 cores were off using this device for 2-3 days it always turns off 2 cores for me rest 6 is working most of the time :/ Even in battery saver mode .. i am not sure if this is a cpuz issue as i have not rooted my device yet so cant say properly ..
Also i face some freq. benchmark issue like in benchmark it scores around single core - 690 multicore - 2.6K .. and if i restarts device it scores normal - 1.1K and 4.5K .. i have no idea whats wrong with this :/
20% Battery Mark
The drop in performance at 20% Battery is standard behavior of the Rom and Stock Kernel. The Big Cluster (A57) is completly shut down to save Battery. If you dont want this you have to use a custom Kernel which is able to switch this Battery saving strategy off. Boeffla Kernel for example can do that.
Read http://www.anandtech.com/show/9828/the-oneplus-2-review/2.
They "optimized" the soc.....
No they just turned off some cores so there is no heat problem.
So I think this is my first and latest oneplus.
they've hit the mark! What the hell, i think they must be sued for false marketing. Its just like buying a car with 400 hp and those hp are only there when i'm parked or listen to music, if i'm on the highway or on the ridge the car has 100 hp...wtf :|
Killer2k8 said:
they've hit the mark! What the hell, i think they must be sued for false marketing. Its just like buying a car with 400 hp and those hp are only there when i'm parked or listen to music, if i'm on the highway or on the ridge the car has 100 hp...wtf :|
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Calm down lol it's actually good on their part. Shutting down A57 cores on low battery is a good thing because the A53 cores use much lesser battery. If you're out on a trip and have 10% battery, with the A57 cores this will probably drain off within an hour of intermittent usage. When only the A53 cores are active, the battery life will increase greatly.
Companies design phones for average users, not just gamers. If you don't want this feature, root your phone, flash boeffla's kernel and disable the BCL Battery Driver. It's as simple as that

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