I'm using temasek's UNOFFICIAL BUILD 130 + temasek default kernel. Every time then my battery percentage reaches 20-30 % phone shuts down. with battery monitor tool i see huge battery percentage drop. then i turn on phone, battery percentage gets back to where it should be (screenshot attached).
is there anyone having same issue and knows how to fix it?
Boot into the recovery menu and wipe the battery stats. Or download the battery calibration app, let your phone charge to 100% and then calibrate it.
Sent from my Optimus 2X using xda premium
thanks for hint. will try.
tomudios said:
thanks for hint. will try.
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Wiping battery stats has no effect on the battery life. Diane Hackborn, an Android Developer, has elaborated on this matter on Google+.
I guess you have "Pimp My CPU" running and it is set up to save battery when reached 30% or 20%. It would do so by clocking down CPU, undervolting or both. Your Device seems not to like low Voltage, slow clockspeeds or both and shuts down.
If you have not set up Pimp My CPU yourself, your kernel is maybe set up to do just that.
Set Pimp My CPU up manually to not go to the lowest possible clockspeeds and to not UV.
Related
I have been using setiron's reoriented kernel for awhile now with the Voltage control app set at -75mV for 100, 200, & 400mhz and -50mV for all other frequencies. I am not having any stability issues and the voltages are sticking after reboot. However, I was expecting a pretty significant increase in battery life due to the undervolting and I have seen next to nothing. Battery life is not bad by any means but in real world use is pretty comparable to what I was getting at stock voltage.
people seem to be reporting really big increases in battery life, so I'm a little confused. have I not UV'd by enough? if that were the case I would expect to see at least some battery improvement.
I wiped battery stats/recalibrated the battery when I flashed. I do have BLN enabled, but my understanding is that this causes a really small amount of battery drain. any thoughts?
How much % of battery you loose after night|?
while idle with the screen off (background data enabled) I lose about 1-2% per hour. I lost 10% overnight most recently and I was asleep for 7 hours. that is about the same that I was getting at stock voltage.
all i can sya, is thst you losing not many %
tehsam said:
while idle with the screen off (background data enabled) I lose about 1-2% per hour. I lost 10% overnight most recently and I was asleep for 7 hours. that is about the same that I was getting at stock voltage.
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If you are in a weaker signal area, then the cell phone radio is going to work just as hard no matter what the CPU voltage.
tehsam said:
I have been using setiron's reoriented kernel for awhile now with the Voltage control app set at -75mV for 100, 200, & 400mhz and -50mV for all other frequencies. I am not having any stability issues and the voltages are sticking after reboot. However, I was expecting a pretty significant increase in battery life due to the undervolting and I have seen next to nothing. Battery life is not bad by any means but in real world use is pretty comparable to what I was getting at stock voltage.
people seem to be reporting really big increases in battery life, so I'm a little confused. have I not UV'd by enough? if that were the case I would expect to see at least some battery improvement.
I wiped battery stats/recalibrated the battery when I flashed. I do have BLN enabled, but my understanding is that this causes a really small amount of battery drain. any thoughts?
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Battery drain can be a symptom of i9000 kernel and captivate modem.
Changing the modem and keeping 850mhz is a multi step process. I tried the kernel you are talking about but it's over rated.
if you want battery life flash a 2.1 rom and use unhelpful's kernel, 1.4.1 was the most stable on my phone but it doesn't have voodoo. 1.6 has voodoo and 1.7 has voodoo and clockwork recovery if I remember right. But I had random restarts, others did not report the same problems so who knows.
I would wait for captivate froyo source to drop. I'm getting decent life with cognition and no undervolting.
Edit after reading the whole thread your battery life seems normal, I don't see any problem, you can try more undervolt but test the phone completely. Make sure it doesn't freeze randomly, or on shutdown. Also test it with the charger plugged in, extra heat from the battery charging can affect stability.
Sent from my SAMSUNG-SGH-I897
Hey all 2X lovers!
Ive been thinking more and more of some overklocking here and Im running this ROM so I can overlock. Im running SetCPU for running different profiles and lovering CPU speed to save battery. I know it can overlock too with doing the setcpu.txt files but how do you increase voltage in the textfile?? Or can I run Pimp my Cpu at the same time as SetCPU without problem?
What speed/voltage is safe and draws not too much more battery??
And yesh Ive searched for this but didnt really found any good information..
I think use Pimp my Cpu only is better, it's because most x2' kernel developers suggested to use it.
I prefer stable rather than saving battery. If you having serious problem of battery drain, please wipe the battery stats while your battery is full(for make sure it's full, keep charging 2hrs after 100%)
Ok Ill look more into Pimp my CPU then
What speeds and voltages are you running? PMC suggests certain voltages at some overclocks, I assume you should follow them?
fm.sakura0128 said:
I think use Pimp my Cpu only is better, it's because most x2' kernel developers suggested to use it.
I prefer stable rather than saving battery. If you having serious problem of battery drain, please wipe the battery stats while your battery is full(for make sure it's full, keep charging 2hrs after 100%)
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im just wondering how much does the governerr effect battary life? i changed from ondemand to smartass2 and im not sure i see any diffrent...
and im scheduales which one is best for multitasking and which is for when playing games?
and should i change the governerr setting?
i also read that sleep_ideal_frequency should be 200 and not 100 beacuse 100 wastes more or something like that, is that true?
using galaxy i9000 semaphore kernal jb
bump
I use Performance governor all the time for 3 months now, battery life is same as on demand, smartass v2 or any other governor, except my phone lags much rarely than on any other govenor. For those that dont know, CPU of PC, your phone, calculator or anything else always works at 100% of its frequency even it has no work to do (Let's take for example your PC, even cpu usage is 5%, CPU still works at full frequency, the same works for your phone), so to me there is no point of any other governor except for Performance. If you have problem with battery life, it's mostly your screen. When I drain out my battery, my battery mostly get drained by screen (70-90%), I use about 0-30% of brightness always. Screen of 60-100% brightness will probably drain your phone's battery in 2-3 hours.
Lavoslav said:
I use Performance governor all the time for 3 months now, battery life is same as on demand, smartass v2 or any other governor, except my phone lags much rarely than on any other govenor. For those that dont know, CPU of PC, your phone, calculator or anything else always works at 100% of its frequency even it has no work to do (Let's take for example your PC, even cpu usage is 5%, CPU still works at full frequency, the same works for your phone), so to me there is no point of any other governor except for Performance. If you have problem with battery life, it's mostly your screen. When I drain out my battery, my battery mostly get drained by screen (70-90%), I use about 0-30% of brightness always. Screen of 60-100% brightness will probably drain your phone's battery in 2-3 hours.
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This is so wrong its a pain to read.:banghead: Why do we have the max and min frequency options in the semaphore app? Why do we have "Max Performance" and "Max Battery" power settings on laptops?
Sent from my GT-I9000
There was a thread some while ago that concluded in OnDemand and Performance being to two to give longest battery life and best performance.
I don't have specifics or even a link, but the thread was about schedulers and governors and which went together for best performance and battery life. I'm sure it's google'able
Sent from my GT-I9000 using xda premium
i found that thread but im just wondering how much battary life is wasted if i prefer preformence?
lets say i use smarassv2 since its faster will my phone drain lets say insted 20%\hour - 22%\hour? or is it more then that?
itzikd1 said:
i found that thread but im just wondering how much battary life is wasted if i prefer preformence?
lets say i use smarassv2 since its faster will my phone drain lets say insted 20%\hour - 22%\hour? or is it more then that?
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maybe you can try and tell us
There should be a significant impact regarding battery life when using Performance for example. But it also depends on what you are used to. If you play games all the time or do heavy tasks, the governor will kick the CPU to 100% all the time anyway. But if you mostly surf on the Internet or read texts there's no need to let the CPU go rampage.
Oh and Btw: Modern CPUs in notebooks or computers in general clock themselves down as well when they're idle.
Sent from my Gameboy Color
BlueFlame4 said:
There should be a significant impact regarding battery life when using Performance for example. But it also depends on what you are used to. If you play games all the time or do heavy tasks, the governor will kick the CPU to 100% all the time anyway. But if you mostly surf on the Internet or read texts there's no need to let the CPU go rampage.
Oh and Btw: Modern CPUs in notebooks or computers in general clock themselves down as well when they're idle.
Sent from my Gameboy Color
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I do use internet mostly so what will be the most effective governerr any idea?
itzikd1 said:
I do use internet mostly so what will be the most effective governerr any idea?
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Try OnDemand or SmartAssV2.
It's very saddening but this is the case for me.
I have battery saver app installed but it doesn't help very much.
Is there any good power saving tips or perhaps a ROM really good for battery life?
can I replace my TP's battery?
What ROM are you using?
fat n-creamy CM10
1) check your wifi sleep settings and ensure it is set to off when not in use
2) set your minimum frequency to 192 instead of 384. However some people have seen SODs when set at this frequency
3) Use better battery stats to see if there any wakelocks.
I am getting around 0.5% using JCSullins 20121216 CM10 build.
I've received Nexus 6 from FlipKart, Its great but two major concerns:
1. Screen is very yellow (warm color) and on reducing brightness it becomes magenta. When compared to any other phone including Nexus 5, its extremely yellow. Tried couple of apps, none of them do a good job of fixing the yellows. Did anyone find a good app/setting to calibrate this screen right?
2. Battery life is pathetic: From 100% to 10% in half day. SOT is barely 3 - 3.5 hours (Greenified Facebook, Encryption off), no gaming, where as my friend gets 5hours. Sometimes phone hangs and switches off. When I switch on, it looses 15% battery. It has only been charged 2-3 times (only got it 2 days ago). Does it get better with time? or Am I having a faulty battery?
Update: forgot to mention my phone shuts down at 28% battery. And it didn't boot at all. I realized battery was zero. Is this calibration issue? Or bad battery
Flash elementalx, you'll be able to change color values and battery life is great
1. You can change your RGB using any kernel with support to it. Almost every single kernel have support to RGB LCD KCAL. Use a app such as Trickster to modify the RGB once you flashed a kernel of your choosing.
2. Battery life is subjective to how you use your device. Just because someone was able to achieve 5 hours+ SOT doesn't mean you will either because there are way too many factors that play into effect such as: cellular signal strength, wakelocks, apps installed, etc. If you want to maximize your battery life, look into underclocking the CPU/GPU frequency and flash a custom kernel (e.g. Franco) that removes mpdecision. Mpdecision is a huge battery drain and the frequencies that it selects is completely random and unnecessary in my opinion.
http://forum.xda-developers.com/showpost.php?p=57808725&postcount=7 my battery life with Franco pre-r1.
I agree that mpdecision really does drain battery a lot. I have mine OVERCLOCKED to 2.88 ghz with sensei kernel and intelliplug. And I am still getting way better battery life than stock. Just flash this kernel with intelliplug and there goes your battery issues. And you can also adjust your screen colors.
rmx36 said:
I agree that mpdecision really does drain battery a lot. I have mine OVERCLOCKED to 2.88 ghz with sensei kernel and intelliplug. And I am still getting way better battery life than stock. Just flash this kernel with intelliplug and there goes your battery issues. And you can also adjust your screen colors.
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For more elaboration on mpdecision,
All Qualcomm based phones have Qualcomm prorprietary userspace binary called "mpdecision" aka m(ake)p(oor)decision. Instead of letting the kernel itself to decide what frequencies and how many cores to run, this "mpdecsion" binary polls the kernel run queue statistics and decides for the whole system the "optimal" frequency and the "optimal" number of cores to use. The concept is fine, except the decision making is done in userspace and it's 100% closed source so there's no way to tweak it and there's a latency (because all userspace binaries needs to "poll" the kernel for the latest information which is slightly delayed). - faux123
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In other words, mpdecision makes your phone sit at 1.5GHz for doing the most simplest tasks, even composing a email it'll bring your frequency to be at 1.5GHz.
Download CPU Spy and use your phone, then look at CPU Spy and you'll see how much time is spent in that frequency. Then flash another kernel that does not use mpdecision then you'll see the difference, the phone sits at frequencies that makes sense for the load that is on the device.
The alternative solutions would be, Franco's Hotplugging Algorithm or intelliplug by Faux.
Battery life is very subjective.
I am still 100% stock, encrypted, auto brightness and get over 6 hours SOT every charge. Mainly WiFi, some LTE. No gaming.
I will root and switch to another kernel when I have time and see the difference. I would expect more battery.
However if you are only at 2.5 hours SOT on a full charge, I wouldn't expect it to double just by changing kernels.
JasonJoel said:
Battery life is very subjective.
I am still 100% stock, encrypted, auto brightness and get over 6 hours SOT every charge. Mainly WiFi, some LTE. No gaming.
I will root and switch to another kernel when I have time and see the difference. I would expect more battery.
However if you are only at 2.5 hours SOT on a full charge, I wouldn't expect it to double just by changing kernels.
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Thats so impossible. I've switched to 2G only but i run on Wifi all time and yet 1 day standby and 3.5hrs SOT.
zephiK said:
1. You can change your RGB using any kernel with support to it. Almost every single kernel have support to RGB LCD KCAL. Use a app such as Trickster to modify the RGB once you flashed a kernel of your choosing.
2. Battery life is subjective to how you use your device. Just because someone was able to achieve 5 hours+ SOT doesn't mean you will either because there are way too many factors that play into effect such as: cellular signal strength, wakelocks, apps installed, etc. If you want to maximize your battery life, look into underclocking the CPU/GPU frequency and flash a custom kernel (e.g. Franco) that removes mpdecision. Mpdecision is a huge battery drain and the frequencies that it selects is completely random and unnecessary in my opinion.
http://forum.xda-developers.com/showpost.php?p=57808725&postcount=7 my battery life with Franco pre-r1.
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Impressive! I'm trying ElementalX kernel right now. Is it safe to switch-off MP-decision on that using trickster or shall I go with franco blind folded.
taranfx said:
Thats so impossible. I've switched to 2G only but i run on Wifi all time and yet 1 day standby and 3.5hrs SOT.
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Well, not impossible as it has been that way on my phone since day 1.
But i agree that it is really odd how some people are getting 3 hours and others getting 6.
I had the opposite on my Note 4 though. Everyone got 6 and I got 4. So who knows?
taranfx said:
Impressive! I'm trying ElementalX kernel right now. Is it safe to switch-off MP-decision on that using trickster or shall I go with franco blind folded.
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You only want to disable MPDecision if theres a alternative. For Franco, mpdecision is 100% removed so you don't need to disable anything.
I don't know ElementalX so I can't say, ask in their thread. If you use Franco, everything is done for you and you don't need to do anything on your part.
My battery life with LK is pretty good as well! I was able to tether for 10 hours straight and still had 22% left after sleeping ~8 hours.