Database Develop

Brightness Sensor

hello everyone,
i noticed that the screen brightness doesnt change"on the spot", the phone needs to be locked and unlocked in order for the screen brightness to adapt at the ambient lighting.
e.g. im in a dark area using my phone then walking towards where is more brighter, the screen remain with the same brightness setting as the dark area,then for the screen to adapt i need to lock it and unlock it.
is this a bug?is my sensor broken? or this is how it really works?
P.S. i've searched already in the forum nothing came up in regards.
Phone Specs: LG optimus dual, rom temasek kang build 133, etana LOC kernel, BB and RIL match, And of course AUTOMATIC BRIGHTNESS TURNED ON.
Hoping for anyone kind consideration in the matter.
Thanks in advance.
Sent using my phone with this forum app

It's the kernel. Have you read its thread?
Sent from my Optimus 2X using xda premium

Problem solved!!! Installed new version of kernel
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Is this normal battery drain?

Hey guys I get good battery when the screen is off. But whenever I use it, it seems like it drops pretty rapidly.
What do you think?
Cm 10 preview 4
Hydracore kernel
Sent from my GT-N7000 using xda premium

Sorry I forgot to upload the screenshot

barretp said:
Hey guys I get good battery when the screen is off. But whenever I use it, it seems like it drops pretty rapidly.
What do you think?
Cm 10 preview 4
Hydracore kernel
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Depends on what you did during that period.. If the processor was running at MAX frequency the entire time, yes thus might be normal.. Also as I notice from the screenshot, the screen is always in in that time frame.. So you deduce from this
--
Sent via XDA Premium from SGS II

barretp said:
Hey guys I get good battery when the screen is off. But whenever I use it, it seems like it drops pretty rapidly.
What do you think?
Cm 10 preview 4
Hydracore kernel
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
No. It's broken. You should send it to me.

Hi,
Thats an abnormal drain. Try restarting your phone and seeing if the problem persists. Also note that the ROM you are using is still under testing and not a finished product so might experience some difficulties. Consider shifting to a more stable ROM if problem persists.
Having said that, battery drain will depend quite a lot on what apps you have running in the background and your settings.
Best way to analyse the situation is by installing an app called 'Better battery stats'. Its by a XDA member and if i'm not mistaken he offers it on XDA as free download. Try to see what is causing partial wakelocks and kernel wakelocks (your phone should be on deep sleep mode for the majority of time). Try to see what MHz is your processor running at (it shouldnt be in the 1400 range for too long unless you are playing some heavy duty games)
Also try to search for threads on 'wakelocks' on XDA to get more details on this subject.
I have experienced close to 10% drop in 1.5 hr in stock ROMs and around 15% in five hours on CleanNote ROM in idle states with lots of background apps disabled.

Black screen wont wake up - have to remove battery

Is there any solution to this problem?
touch buttons illuminated, screen back light on but screen wont wake up, stays black, so i have to remove the battery.
It is driving me mad, happens every other day 2/3 times a day.
Running temaseks rom and kernel on there... is there anything i can do to eradicate this problem?

When i shut down the wifi, i dont have this problem
Sent from my LG-P990 using xda app-developers app

sharvan97 said:
When i shut down the wifi, i dont have this problem
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
cheers for the reply!
But i cant have the wifi off all the time are there any other solutions?

Try to reflash rom. Shouldn't have such issues on Temasek at all.
Sent from my Optimus 2X using xda premium

Gamma Ray said:
Is there any solution to this problem?
touch buttons illuminated, screen back light on but screen wont wake up, stays black, so i have to remove the battery.
It is driving me mad, happens every other day 2/3 times a day.
Running temaseks rom and kernel on there... is there anything i can do to eradicate this problem?
Click to expand...
Click to collapse
it may occur in process downloading data in background (via WIFI) or if apps auto update is being
need to wait or pull out the battery

Did you install any tweaks?
Sent from my Optimus 2X using xda premium

i think it's a rom problem,i face it when i'm on that build,but now i change to gueste.. and everything works,try to change kernel.. or rom..

I also had this problem on Parandroid CM10, no sign of life from the phone at all.
However, I reflashed the rom and now it works great.

Ok rom issue then. I will reflash it with a different one and kernel. Any kernel recomendations?

Gamma Ray said:
Ok rom issue then. I will reflash it with a different one and kernel. Any kernel recomendations?
Click to expand...
Click to collapse
CM7.2, etana kernel. Eliminated black screen problem during overnight charging.

vEget7 said:
i think it's a rom problem,i face it when i'm on that build,but now i change to gueste.. and everything works,try to change kernel.. or rom..
Click to expand...
Click to collapse
Happened to me on gueste2x v3.8 last night while I was USB tethering...and I was just pushing for a record time running made it to 160 hours and had to pull battery out to get it working again. As mentioned already, it's probably something to do about background data/wifi activity.
Nevertheless, I still recommend gueste2x v3.8 :thumbup: Give it a try
Sent from O2x Hybridized by Gueste2X_v3.8

jabooka said:
Happened to me on gueste2x v3.8 last night while I was USB tethering...and I was just pushing for a record time running made it to 160 hours and had to pull battery out to get it working again.
Click to expand...
Click to collapse
wow, i really wonder which settings you use and which usage type you have. hardly get 20 hours of life out of my battery. im using a jb rom which needs more juice, but nevertheless the difference is stunning. maybe i should start thinking about getting a new battery
Sent from my LG-P990 using xda app-developers app

Just set a profile with wifi off and set an alarm about 11 pm with the profile in it, and you wont have this problem anu more
Sent from my LG-P990 using xda app-developers app

Happened to me twice in a row even with temasek. And bunch of times before with variety of roms. Its basicly kernel issue, low voltage set on screen off and probably some background data sync.. Well i hope cm10 is gonna fix this issue forever, because this is making me wanna toss my o2x and whole android to the trashbin and buy a Windows Phone rather.. I Just cant keep a phone i cant rely on

mr_dan said:
Happened to me twice in a row even with temasek. And bunch of times before with variety of roms. Its basicly kernel issue, low voltage set on screen off and probably some background data sync.. Well i hope cm10 is gonna fix this issue forever, because this is making me wanna toss my o2x and whole android to the trashbin and buy a Windows Phone rather.. I Just cant keep a phone i cant rely on
Click to expand...
Click to collapse
Its happened to me on some other roms too.
I had a feelining it might be a low voltage issue, so i have been setting cpu min value higher but havent solved the issue :/

Gamma Ray said:
Ok rom issue then. I will reflash it with a different one and kernel. Any kernel recomendations?
Click to expand...
Click to collapse
Symbiosis
Sent from my Optimus 2X using xda app-developers app

I kept having this issue with stock CM & faux kernel. I resolved it finally by replacing the battery with a new one.

how to solve videoplayback lag after jb update on s advance

i found that there is a considerable lag in video playback after jb update.this happends only sometimes...heard if u enable gpu rendering it might solve the problem.anyone got a way to apply project butter on video playback too.

ksguptalive said:
i found that there is a considerable lag in video playback after jb update.this happends only sometimes...heard if u enable gpu rendering it might solve the problem.anyone got a way to apply project butter on video playback too.
Click to expand...
Click to collapse
I dont have any lag or issue in JB. :3

ksguptalive said:
i found that there is a considerable lag in video playback after jb update.this happends only sometimes...heard if u enable gpu rendering it might solve the problem.anyone got a way to apply project butter on video playback too.
Click to expand...
Click to collapse
There are answers in forum. Do you even read? Or just post new threads with questions???
I see you are new here. See this video: http://www.youtube.com/watch?v=JmvCpR45LKA
P.S. When you allready opened it, let me answer. But you do not deserve it, you are lazy.
Turn OFF Powersaving mode. Swipe down notification and turn it off. It put your CPU to 800MHz instead of 1GHz. If that do not help, look here: http://forum.xda-developers.com/showthread.php?t=2092627
Because of usless posts like yours, the one with answers are gone on 4th-5th page. And you can't find it!

its has nothing to do with power saving mode...even clearing ram does not help.the lag is noticable only few times but wen it happens one has to turn the device off and reboot.
Sent from my GT-I9070 using xda app-developers app

ksguptalive said:
its has nothing to do with power saving mode...even clearing ram does not help.the lag is noticable only few times but wen it happens one has to turn the device off and reboot.
Sent from my GT-I9070 using xda app-developers app
Click to expand...
Click to collapse
Tried this? http://forum.xda-developers.com/showpost.php?p=36551964&postcount=8

i m quite sure this will help.i will try and tell u l8r.
Sent from my GT-I9070 using xda app-developers app

ksguptalive said:
i m quite sure this will help.i will try and tell u l8r.
Sent from my GT-I9070 using xda app-developers app
Click to expand...
Click to collapse
Or download new version from sammobile and flash it in Odin. Someone said that there is no more lag in that version.

Use advance task killer and keep auto kill on..........now no more lags in video playback........
it worked for me....bt it will cost u some of ur battery.

No lag in the new version! Confirmed!
Sent from my GT-I9070 using Tapatalk 2

[Q] Battery-friendly ROM

Hi guys, maybe you read this question a lot of times...
In your opinion which is the best battery friendly ROM for our device atm? I don't really care about performance aspects because I'm not a gamer

TechL0v3r said:
Hi guys, maybe you read this question a lot of times...
In your opinion which is the best battery friendly ROM for our device atm? I don't really care about performance aspects because I'm not a gamer
Click to expand...
Click to collapse
I get +/- 1 day on stock JB (GPS always ON, data always On). Last time i tried CM (RC2) i didn't get 6h...

I'm currently getting a decent ammount of battery life with CM Nightly 20130613 + Idoak v6 kernel.
Also Stock ROM with Idoak kernel is good aswell. Just have my Governor set to Interactive and seems to do a pretty well job.
Paulo87 said:
I get +/- 1 day on stock JB (GPS always ON, data always On). Last time i tried CM (RC2) i didn't get 6h...
Click to expand...
Click to collapse
From what I've read/heard around. The CM RC version are alot more buggy and problematic than the Nightlies. I haven't tried the RCs myself tho the Nightly does feel pretty smooth and stable.

Which firmware?
Sent from my LG-P880 using xda premium

ROM has little to nothing to do with battery life, aside from the obvious settings you can select to turn opn or off features. what does influence battery life is how you use the phone and in particular 3 key elements
1) Kernel - Stock kernel is pretty limited, using alternative kernels will allow different governor and scheduler options along with frequency and voltage control
2) Tweaks - many unsuspectable little things can change the way your phone drains, probably the best way to start is getting pimp my rom from the plauy store
3) Apps - You will need apps to help managing and scheduling when and how the phone drains. LBE security master or any other task manager will prevent unwanted app startings and others like juice defender or other battery saving programs help with which interfaces are on and when.
Also keep in mind that if your phone is new the battery in the first 3-4 days need to settle and will change drastically behaviour.
Hope this helps
In any case a catania sto telefono te lo fanno prima della terza ricarica quindi non mi starei a preoccupar troppo

Grazie XD
In this case which kernel and governor do you suggest me?
Sent from my LG-P880 using xda premium

Stock rom, remove LG MLT and Google Backup Service and you should be good.
I can leave my phone for 2 days without worrying about charging it. However, with screen set to 50 or 100% brightness, the battery drains very fast.
Otherwise, keep your screen brigthness low and get a governor that lets you throttle the CPU. At 800 MHz,you should be fine. Also, dont use auto brightness, it will not help.

Thank you which firmware?
Sent from my LG-P880 using xda premium

I'm using SuperXE with iodak kernel, undervolted.
Currently on 55% battery after 13.5 hrs 1hr+ screen time.

TechL0v3r said:
Thank you which firmware?
Sent from my LG-P880 using xda premium
Click to expand...
Click to collapse
EuroOpen V20A if stock or CM, some nightly between RC2 and RC 3(Thats the last ones I tested that used to be good)

Could someone help on what r the steps for install custom ROMS and Wich one is the best for battery life I'm having very very huge battery problem. The battery it's long for about 3 hours tops and I need to keep charging always and also the overheat is extremely. I will appreciate ur help
Enviado desde mi LG-P880 usando Tapatalk 2

Sorry but you should write a new topic for this problem... Anyway there are several guides in this section that revolve about how to install custom roms. Try looking there... However generally after installed a recovery you should do a full wipe (data/cache/dalvik) -> install zip from sd card -> choose zip from internal/external sd card -> [file directory] -> choose file -> yes
Sent from my LG-P880 using xda premium

Im using iodak 6.0 and latest CM nightly builds. Battery is much better then on stock ROM and kernel.

Cuniek said:
Im using iodak 6.0 and latest CM nightly builds. Battery is much better then on stock ROM and kernel.
Click to expand...
Click to collapse
I dont know if iodak improves battery life, but I do not think that battery improved with CM. It actually got worse for me,

XenonHD + iodak v06 has been very smooth and battery friendly. A day and a half of moderate use and I'm sitting at 18%
Sent from my Optimusx4 using Tapatalk 4 Beta

shadowcore said:
Stock rom, remove LG MLT and Google Backup Service and you should be good.
I can leave my phone for 2 days without worrying about charging it. However, with screen set to 50 or 100% brightness, the battery drains very fast.
Otherwise, keep your screen brigthness low and get a governor that lets you throttle the CPU. At 800 MHz,you should be fine. Also, dont use auto brightness, it will not help.
Click to expand...
Click to collapse
This helped me a lot, only reinstalled LG mlt and I get plus 10 hours with 2 hours on screen and +60% of battery, and im on the second circle since I install v20c global, great Rom and working excellent even in hard 3d games
Enviado desde mi LG-P880 usando Tapatalk 4 Beta

Maybe you mean uninstall instead of reinstall?
Sent from my LG-P880 using xdapremium

Yes uninstall, sorry for the typo
Enviado desde mi LG-P880 usando Tapatalk 4 Beta

No problem
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