Database Users

Should I undervolt?

After reading this:
http://forum.xda-developers.com/showthread.php?t=2052496
I found I got the "faster" type. As I understand it, this means my cpu has less power/frequency needs, and so, because the stock kernel is configured to manage any of the possible cpu binnings, the settings are probably not the optimal ones for my particular unit. So, does this mean my phone is running at a higher voltage than it needs? Should I undervolt it? How?

While faster CPU binning does mean that you CPU can run more stable at a lower voltage, UV doesn't save you that much of battery.
Most of the battery goes to the screen. The least I have seen around is 50%. Then the next culprit is the radio. And you also have RAM, storage, etc. UV might give you around 1% more battery or so.
You can try UV if you want, but I don't think you need, or should do it.
Sent from my Nexus 4 using xda app-developers app

KyraOfFire said:
While faster CPU binning does mean that you CPU can run more stable at a lower voltage, UV doesn't save you that much of battery.
Most of the battery goes to the screen. The least I have seen around is 50%. Then the next culprit is the radio. And you also have RAM, storage, etc. UV might give you around 1% more battery or so.
You can try UV if you want, but I don't think you need, or should do it.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Actually that's not the in my phone. I don't know what I'm doing wrong but AndroidOS, Google Services or MediaServer usually show up as the battery top drains. I have to say I'm on wifi most of the time and the screen time is usually around 1 hour per day. I'm using all the sync features, google now etc, so I I thought reducing the 384Mhz voltage would have some impact

hallucynogenyc said:
Actually that's not the in my phone. I don't know what I'm doing wrong but AndroidOS, Google Services or MediaServer usually show up as the battery top drains. I have to say I'm on wifi most of the time and the screen time is usually around 1 hour per day. I'm using all the sync features, google now etc, so I I thought reducing the 384Mhz voltage would have some impact
Click to expand...
Click to collapse
Presumably you're not talking about under volting, but under clocking?
Sent from my Nexus 4 using xda premium

No, I'm not. Looking at my cpu modes graph, it makes sense to me that reducing the voltage at which the cpu runs at 384mhz would reduce the consumption:
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While it is debatable whether you will save any noticeable amount of battery by undervolting, I have found it to significantly reduce the heat produced by the CPU. Our SOC's are great undervolters, so I don't see any reason NOT to undervolt.
Sent from my Nexus 4 using Tapatalk 2

heat = energy, I highly doubt you can feel a difference in temperature but not in battery lol. How are you guys undervolting? I tried setCPU but it doesn't work, is a custom kernel needed?

KyraOfFire said:
While faster CPU binning does mean that you CPU can run more stable at a lower voltage, UV doesn't save you that much of battery.
Most of the battery goes to the screen. The least I have seen around is 50%. Then the next culprit is the radio. And you also have RAM, storage, etc. UV might give you around 1% more battery or so.
You can try UV if you want, but I don't think you need, or should do it.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I think the battery usage by the screen that is being reported includes more than just the amount of battery used to power the screen. Due to project butter, touching the screen ramps up the CPU to high frequencies, like 1026 - 1512 GHz, making the phone buttery smooth yet sucking the life out of it's battery. In other words, the screen usage includes its touch boost processing usage as well, which in its self is allot of usage. Basically, UV should improve battery life significantly.

Still noone tells me how to do it xD

hallucynogenyc said:
Still noone tells me how to do it xD
Click to expand...
Click to collapse
You need to install a custom kernel that allows undervolting then use an app such as system tuner to undervolt.
Mine shows as a nominal CPU and I could under volt quite a bit. Makes a nice difference to heat and battery life is noticeably better.
Sent from my Nexus 7 using Tapatalk 2

Okay, I thought rooting would be enough Honestly, I'm liking the stock kernel overall, what's the closest to stock kernel that allows undervolting I can find? If there's no such thing, what do you recommend me?
Thanks in advance

The easiest way, with the minimun amount of work, would be flashing motley kernel. UV by default and you faster binning CPU is fully accounted for.
http://forum.xda-developers.com/showthread.php?t=2021437
Trinity kernel also UV by default. He has his own website here
http://forums.derkernel.com/index.php/topic,47.0.html
Download the zip file, flash it in recovery, wipe cache/dalvik and you're good to go.
You can also try other kernel/ROM that support UV. Most likely you will need a control app.
Sent from my Nexus 4 using xda app-developers app

What's a good level to undervolt to I'm on faux's 001 have a nominal cpu and right now I'm -100 MV should I UV more? My phone is still completely stable at this level

mbucks911 said:
What's a good level to undervolt to I'm on faux's 001 have a nominal cpu and right now I'm -100 MV should I UV more? My phone is still completely stable at this level
Click to expand...
Click to collapse
Every phone can handle different uv levels, mine seems to be -150, and I have "fast" cpu. You can try higher but don't set the voltage to be "on boot" or else you'll get the bootloop or freeze.

Nexus 4 running hot

In System Tuner, I've been noticing my CPU temps are quite a bit higher then usual (around 50 C when they used to be around 45 C). The only thing I've done is I recently did a factory reset after installing some apps. I don't quite get why the temps are a bit higher then they used to be. The phone is noticeably warmer during very light use -- is there anything I can do to try to fix this or is this pretty normal?

TrevSo said:
In System Tuner, I've been noticing my CPU temps are quite a bit higher then usual (around 50 C when they used to be around 45 C). The only thing I've done is I recently did a factory reset after installing some apps. I don't quite get why the temps are a bit higher then they used to be. The phone is noticeably warmer during very light use -- is there anything I can do to try to fix this or is this pretty normal?
Click to expand...
Click to collapse
My phones idle temps are around 20-28 degrees Celsius. If i'm gaming like Modern Combat 4 then the temps might hit like 38 after 15-30 mins. I really think your temps are way to high for light use. So this only happened after doing a factory reset? Maybe look for apps that might be running in the background from a task manager. If that doesnt work just try a factory reset. Are you all stock?

Just so you know CPU tuner shows you the CPU temp ... That is different to battery temp
For example right now my battery temp is 25 degrees but my CPU temp is 31
Sent from my Nexus 4 using Tapatalk 2

TrevSo said:
In System Tuner, I've been noticing my CPU temps are quite a bit higher then usual (around 50 C when they used to be around 45 C). The only thing I've done is I recently did a factory reset after installing some apps. I don't quite get why the temps are a bit higher then they used to be. The phone is noticeably warmer during very light use -- is there anything I can do to try to fix this or is this pretty normal?
Click to expand...
Click to collapse
italia0101 said:
Just so you know CPU tuner shows you the CPU temp ... That is different to battery temp
For example right now my battery temp is 25 degrees but my CPU temp is 31
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Aw yup my bad, I was trying to find a app to display CPU temp but couldnt find one so I just used one that displayed battery, did think they were gonna be that different.
Also, TrevSo are those idle CPU temps? Or under only light usage? My idle is around 31 now that I just checked but when playing a game I do hit up to 51 degrees Celsius.
---------- Post added at 06:36 AM ---------- Previous post was at 05:51 AM ----------
I just ran stabilitytest and my CPU temp hit 70 degress Celsius after 5 mins and thottled down to 1GHz then it went back to 1.5GHZ, and the CPU temperature fell to 65 degrees Celsius, and the process kept repeating till I stopped it. Also, my battery temp did no get higher than 40 degress Celsius. Are these normal temps? Or should I be worried?

Addsome said:
I just ran stabilitytest and my CPU temp hit 70 degress Celsius after 5 mins and thottled down to 1GHz then it went back to 1.5GHZ, and the CPU temperature fell to 65 degrees Celsius, and the process kept repeating till I stopped it. Also, my battery temp did no get higher than 40 degress Celsius. Are these normal temps? Or should I be worried?
Click to expand...
Click to collapse
You need to undervolt. Undervolting took care of all my heat issues.

Use a custom kernel like faux . he has his own implementation for thermal stuff . and since using it my phone has never throttled or even got above 34 in battery temp
I also run a -125 under volt
Sent from my Nexus 4 using Tapatalk 2

estallings15 said:
You need to undervolt. Undervolting took care of all my heat issues.
Click to expand...
Click to collapse
Ya I probably will but my main question is if my temps at stock volt seem alright.

50C is not hot. it falls right in the middle of a normal cpu temp while being used. 80C is hot.

simms22 said:
50C is not hot. it falls right in the middle of a normal cpu temp while being used. 80C is hot.
Click to expand...
Click to collapse
What about the CPU hitting 70 in a benchmark? Thats when mine starts to throttle.

Addsome said:
What about the CPU hitting 70 in a benchmark? Thats when mine starts to throttle.
Click to expand...
Click to collapse
Throttling during benchmarks has been a problem since day 1 with this phone.

Addsome said:
What about the CPU hitting 70 in a benchmark? Thats when mine starts to throttle.
Click to expand...
Click to collapse
estallings15 said:
Throttling during benchmarks has been a problem since day 1 with this phone.
Click to expand...
Click to collapse
ive hit 100C
you can disable thermal throttle(for benchmarking) in a terminal emulator..
su(press enter)
echo N > /sys/module/msm_thermal/parameters/enabled(press enter)
if you reboot, youll have to enter it again.

simms22 said:
ive hit 100C
you can disable thermal throttle(for benchmarking) in a terminal emulator..
su(press enter)
echo N > /sys/module/msm_thermal/parameters/enabled(press enter)
if you reboot, youll have to enter it again.
Click to expand...
Click to collapse
I feel bad for your battery.

What would be average CPU and battery temps while playing a 3D game like Modern Combat 4 for 30 mins? What about under light usage? Also, at what is the max a temperature a battery can go without getting damaged?

estallings15 said:
I feel bad for your battery.
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Click to collapse
but i use it at 1134mhz normally :angel:
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My better powersave CPU configuration for rooted users (Stock kernel)

Hello, I was recently playing around with the CPU settings in 3C CPU manager, and I noticed the default powersaver configuration isn't that good, compared to mine.
I am using the stock kernel.
Firstly, I noticed that the interactive governor is too sensitive for the A53 cores and it would cause the CPU frequency to jump up to the maximum very easily.
Secondly, I felt that based on my general day-to-day usage (heavy web browsing + some gaming), 4 cores are more than sufficient.
I played around with the ondemand governor and just set its powersave bias to 185, then took all the cores except cores 0, 1 and 4 offline (2x A53 + 1x A57).
I set the A53 cluster to run on the ondemand governor and the A57 core to run on the default interactive governor.
If you want, you can downclock the A53 cluster to 1.34 ghz after you disable pnpmgr, and you should be able to get 6.5 hours of heavy-usage SOT on the stock kernel with little to no lag at all, on a ROM that has Force GPU rendering on.
Do try it out and let me know of the results! :good: (don't forget to disable wakelocks for Google Play Services too)

this is reeeeally high powersaver, too much compromise, and there are people who reach that SOT without any mod

throcker said:
this is reeeeally high powersaver, too much compromise, and there are people who reach that SOT without any mod
Click to expand...
Click to collapse
Hmm... compared to the stock powersaver this actually gives higher scores in both single core and multi core benchmarks. I also have auto-brightness on. However, I get absolutely no lag and my usage is very heavy, almost all my SOT is web browsing on HSPA, with some gaming here and there. I'm open to suggestions though.
For comparison purposes, on the stock powersaver configuration (A53 only), I get 4 hours and 14 minutes of SOT at 1%.
Without downclocking on this configuration, I got 7h 6min of total time and 5h SOT from 98%.
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throcker said:
this is reeeeally high powersaver, too much compromise, and there are people who reach that SOT without any mod
Click to expand...
Click to collapse
only way i could get that amount of SOT without any mods is if i disabled any and all data/signal and just sat at a picture all day

Which core is a53 cluster and which is a57?

acidspider said:
Which core is a53 cluster and which is a57?
Click to expand...
Click to collapse
0,1,2,3 are the little(A53) and 4,5,6,7 are the big one(a57)

Sorry but these setting were pretty much worthless here. the default settings in the LeeDroid Kernel are much better. Freezing Google Play Services just screwed up my contact list and didn't do much else.
applied your settings (phone was at 97%) went to thanksgiving dinner at my sisters never picked up the phone but about 3 times and made 2 phone calls less than 10min each and used almost 57% of the battery in 4 hours. I typically use about 40% battery in a full 9 hour day at work.

clsA said:
Sorry but these setting were pretty much worthless here. the default settings in the LeeDroid Kernel are much better. Freezing Google Play Services just screwed up my contact list and didn't do much else.
applied your settings (phone was at 97%) went to thanksgiving dinner at my sisters never picked up the phone but about 3 times and made 2 phone calls less than 10min each and used almost 57% of the battery in 4 hours. I typically use about 40% battery in a full 9 hour day at work.
Click to expand...
Click to collapse
freezing google play service breaks more then helps.. also stock settings are much better then any of these "powersaving " settings...actually amplify and greenify with donate app and xposed do help also a lot and using high accuracy mode for location.
but keeping the kernel settings at nearly stock, maybe just lower clocks for both clusters helps a lot.
the problem is, that in 5.x.x LITTLE.big SoCs aren't really optimized...so it will do much better with MM...and maybe when kernel devs are getting more knowledge about LITTLE.big so they could together tweak it more.

clsA said:
Sorry but these setting were pretty much worthless here. the default settings in the LeeDroid Kernel are much better. Freezing Google Play Services just screwed up my contact list and didn't do much else.
applied your settings (phone was at 97%) went to thanksgiving dinner at my sisters never picked up the phone but about 3 times and made 2 phone calls less than 10min each and used almost 57% of the battery in 4 hours. I typically use about 40% battery in a full 9 hour day at work.
Click to expand...
Click to collapse
DeeZZ_NuuZZ said:
freezing google play service breaks more then helps.. also stock settings are much better then any of these "powersaving " settings...actually amplify and greenify with donate app and xposed do help also a lot and using high accuracy mode for location.
but keeping the kernel settings at nearly stock, maybe just lower clocks for both clusters helps a lot.
the problem is, that in 5.x.x LITTLE.big SoCs aren't really optimized...so it will do much better with MM...and maybe when kernel devs are getting more knowledge about LITTLE.big so they could together tweak it more.
Click to expand...
Click to collapse
Oops... I meant disabling wakelocks for google play services :silly:
This has only been tested on the stock kernel...

Heat Problems

Does anyone encounter problems with heat? When I play a simple game like Fallout Shelter my phone reaches 50 degrees celsius.
It only heats up so much only on games. Or when I charge it but 50 degrees seems too much.
Is there an app to reduce the cpu frequency so it cools down? Kernel Adiutor doesn't work for me. Or I don't know how to use it properly.

never seen it get to 50.
are you stock or ....

Im on Google Edition by Cydras. It works fine except for the temperature. It heats when I charge it or when I play some games. around 50 degrees

On stock, my record was 39,5. I played games like Heroes 3 HD, Hearthstone, Bloons City.

Fallout Shelter seems a low grafic game and I didn't thought it will make the phone heat.

Fallout: Winter Edition. Play, if your hands are cold. Cool feature!

Battery only reaches ~41°C max while charging, but it normally drops down into the 30's. I don't think I've seen it go past that, but that temp was seen while I was in a hot area.

I played injustice for an hour straight and never heat up. I am on stock
LeEco Pro3

If you're rooted, try setting the gpu governor to power save for that game.
I noticed with my last phone with an sd810, some games would max the gpu when there was no need to. Even some of the escape the room type games did it, while others didn't.

motanel_pufos said:
Does anyone encounter problems with heat? When I play a simple game like Fallout Shelter my phone reaches 50 degrees celsius.
It only heats up so much only on games. Or when I charge it but 50 degrees seems too much.
Is there an app to reduce the cpu frequency so it cools down? Kernel Adiutor doesn't work for me. Or I don't know how to use it properly.
Click to expand...
Click to collapse
the temperature will rise very quickly if you are using xposed, and I met this problem when installed xposed that there is no way to overcome
---------- Post added at 03:55 AM ---------- Previous post was at 03:48 AM ----------
motanel_pufos said:
Does anyone encounter problems with heat? When I play a simple game like Fallout Shelter my phone reaches 50 degrees celsius.
It only heats up so much only on games. Or when I charge it but 50 degrees seems too much.
Is there an app to reduce the cpu frequency so it cools down? Kernel Adiutor doesn't work for me. Or I don't know how to use it properly.
Click to expand...
Click to collapse
the temperature will rise very quickly if you are using xposed, and I met this problem when installed xposed that there is no way to overcome

illuminati113 said:
the temperature will rise very quickly if you are using xposed, and I met this problem when installed xposed that there is no way to overcome
---------- Post added at 03:55 AM ---------- Previous post was at 03:48 AM ----------
the temperature will rise very quickly if you are using xposed, and I met this problem when installed xposed that there is no way to overcome
Click to expand...
Click to collapse
It does not make sense. Exposed alone will not raise temperature. You could be using some super heavy Xposed modules that make CPU to work at full speed. I cannot think of any modules that would do that though.

4K2K said:
It does not make sense. Exposed alone will not raise temperature. You could be using some super heavy Xposed modules that make CPU to work at full speed. I cannot think of any modules that would do that though.
Click to expand...
Click to collapse
I do not know what it is modules, I just used some youtube adaway basic modules, minmin guad, youtube backup, flat style colored bar...

I don't have any exposed program or modules installed. Just the20161212v2_20s Google Edition by Cydras for LEX720

Tried with kernel adiutor to decrease cpu frequencies but didn't work. It made the phone work really bad. So I uninstall it.

motanel_pufos said:
Tried with kernel adiutor to decrease cpu frequencies but didn't work. It made the phone work really bad. So I uninstall it.
Click to expand...
Click to collapse
Use ElementalX. I reduced the big cluster to 800mhz, then disabled it altogether. No problems with this app.

motanel_pufos said:
Does anyone encounter problems with heat? When I play a simple game like Fallout Shelter my phone reaches 50 degrees celsius.
It only heats up so much only on games. Or when I charge it but 50 degrees seems too much.
Is there an app to reduce the cpu frequency so it cools down? Kernel Adiutor doesn't work for me. Or I don't know how to use it properly.
Click to expand...
Click to collapse
Because of the metal back, the phone gets warm but I don't notice any throttling.
Sent from my SM-G935W8 using Tapatalk

Still in games very hot.
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I've yet to see my temp rise above 40, and I've been gaming a lot lately

It depend on the game, on Need for Speed Unlimited is just warm but on Fallout Shelter is really hot, I don't understand what it does. It doesn't have a lot of grafix.

The stock plastic case is quite bad thermal wise. (Most cases probably are.) Although 50C is actually quite cool for a CPU if that's what you're reading.

PUBG Lagging everytime.

I'm on stock and everytime I play pubg Gabe it's lagging a lot ! Please tell me how to fix this ??

@ sanjay sahu said:
I'm on stock and everytime I play pubg Gabe it's lagging a lot ! Please tell me how to fix this ??
Click to expand...
Click to collapse
that is because it has a slow GPU (graphic chip) so it wil lagg... unless u try low setting maybe.

Same here
I also tried to tweak the game with GL tools. I'm getting solid 30 fps at first but then it just ****in dips down to 15 which are unplayable

reggiexp said:
that is because it has a slow GPU (graphic chip) so it wil lagg... unless u try low setting maybe.
Click to expand...
Click to collapse
It's not completely true!
I made some tests running PUBG, and I noticed that the CPU heats up a lot after 5 minutes playing, causing Throttling, monitoring the frequency I saw that the processor has limited the maximum clock to 499 (Big cluster) and 403 (Little cluster) this happens when cell reaches ~ 45 degrees. unfortunately the only way I found to solve this was to disable Thermal Throttling, which is NOT RECOMMENDED!
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Test made on CPU Throttling Test

brundark said:
It's not completely true!
I made some tests running PUBG, and I noticed that the CPU heats up a lot after 5 minutes playing, causing Throttling, monitoring the frequency I saw that the processor has limited the maximum clock to 499 (Big cluster) and 403 (Little cluster) this happens when cell reaches ~ 45 degrees. unfortunately the only way I found to solve this was to disable Thermal Throttling, which is NOT RECOMMENDED!
Click to expand...
Click to collapse
big and lil cluster lol
dont forget thjs phone is just a 8 core a53.... which are slow cores.. not like a72/73 those are performance cores.
i mean still the Motorola phones feel soo smooth even doh it only has 2gb ram and slow cpu. its just smooth

@ sanjay sahu said:
I'm on stock and everytime I play pubg Gabe it's lagging a lot ! Please tell me how to fix this ??
Click to expand...
Click to collapse
I m on RR 7.1 wth vetigo kernel..and game works fyn...i hv 3gb moto model

reggiexp said:
big and lil cluster lol
dont forget thjs phone is just a 8 core a53.... which are slow cores.. not like a72/73 those are performance cores.
i mean still the Motorola phones feel soo smooth even doh it only has 2gb ram and slow cpu. its just smooth
Click to expand...
Click to collapse
i am running stock android nougat with elemental X kernel. my game is lagging. there are huge frame drops. please suggest a good rom and kernel combo for consistent frame rates.

the best is to flash vegito kernel & overclock cpu to 1.8ghz & gpu to 600mhz,and set throttling to 80 or 90

deepak geddam said:
i am running stock android nougat with elemental X kernel. my game is lagging. there are huge frame drops. please suggest a good rom and kernel combo for consistent frame rates.
Click to expand...
Click to collapse
even at low setting? cause it was playable on my GPD XD that only has a quad core and i dont even know what gpu.
but when pugb droped it played it at low like 20-30fps

reggiexp said:
even at low setting? cause it was playable on my GPD XD that only has a quad core and i dont even know what gpu.
but when pugb droped it played it at low like 20-30fps
Click to expand...
Click to collapse
there are frame drops at low settings too. phone is heating up 46°c and cores stopped running. i check the core status while playing too. i over clock big cores to 1600mhz and when they take load they drop down to 499mhz this is when frame rate goes to 10fps. please give suggestions about good rom and respective kernel and kernel governor
I tried GLTools and GFXTools they too are not helpful in my case.

My Solution for PUBG lagging on G4+
Set graphics and frame rate to lowest. Remove back & back cover of the phone so heat dissipation will be fast and phone will run faster. Use third party app like greenify to force stop unwanted ram eating applications. Now you are much closer to chicken dinner. Let me know if this helps you too. All the best

U can use pub gfx tool without any worry.

Playing the game by sitting in front of a table fan fixes all lagging issues.