Database Users

Doubling battery life using surfaceflinger

http://jsharkey.org/blog/2010/07/01/android-surfaceflinger-tricks-for-fun-and-profit/
Cool

If you didn't know how OLED works it might be cool.
But IMHO it is totally useless, why would I want to distort colors for some battery time?

I am sorry i really have the say the screen looks like your phone is going back to factory.
I do not want a AMOLED LED screen look like damaged nokia phone.
Anyway, still thanks for sharing

Maybe this app is useless but screen looks cool when you enable this and you can trick your friends that they broken your phone

The red filter could be useful at night, for preserving night vision as the author mentioned.

Ycros said:
The red filter could be useful at night, for preserving night vision as the author mentioned.
Click to expand...
Click to collapse
First I think some parts of the device won't be usable since graphics might not have any red in it.
Secondly, since when did anyone care about night vision combined with the use of a phone?
Maybe using it as a GPS, but most programs has a night mode anyways.

why all the negative comments.
android is all about options. if you forget your charger and need limited usage of the screen I could see where it would be useful.
Sent from my SHW-M110S using XDA App

What a great idea, hats off to him!

dseo80 said:
why all the negative comments.
android is all about options. if you forget your charger and need limited usage of the screen I could see where it would be useful.
Sent from my SHW-M110S using XDA App
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Click to collapse
Would it not be more useful to make everything dark instead?

Also, I would like to point out:
Even though some comments may be negative that is the whole thing about a discussion forum. People disagree and vent their opinions.
I look at the usability of what presented and thus venting my thougts on that, for instance this post and can see none.
I also already knew that red needs less electricity than blue OLEDs. That is true for LEDs as well I believe, or anything emitting light, since blue light carries more energy than red.

This could definitely be useful when you're desperate for battery but need to use your phone... ie you need to find a place and you're running out of battery.... It might not be revolucionary but it's nice to have the option to save some battery when you really need to...

@aeo087 - You are right. Could use this in case of emergency situation. Specially if u are away from charger or a usb port of pc and wants more juice from battery for like listening to FM or music.

I think this is excellent work.
At the very least it suggests using a simpler theme could have a big difference on battery life. I dont have a Galaxy S yet but when I do I will definitely be experimenting with this. Im hoping I could also use this OpenGL filter to have a low power mode, as suggested by dseo80, for use when you know your going to be away from a charger.

This would be awesome as low battery mode
Sent from my GT-I9000 using XDA App

thanks for sharing idea m8,,,yeah i agree wiv aboue frnds,,,it is really usefull when u need charging....and this site is all about tweaks,hacks...so yeah gud one.......cheeerz

can't find it in market

Somebody should make this a app
Sent from my GT-I9000 using XDA App

This would be very useful to astronomers, like myself, who would like to use their phones or tabs under the stars and not ruin their night vision.
It's one option that I would almost KILL to have. Someone please do this.

All the apps claiming that our battery backup will double are nothing but useless piece of crap.
Sent from my GT-I9000 using XDA App

[root] Chainfire3D free version got such feature. Its called Night Mode with customization of color

Save power and feel better (for people with cases)

Hello guys. As promised, im releasing a closed beta of Killswitch on XDA. Its a utility designed for tablet devices that will give you a more intuitive user experience by sending the device to sleep when certain sensor conditions have been met.
In effect it means that you can put your device into standby by shutting the case or turning the device over if youre already in a dark room.
For more details, check out the thread HERE.
The app thread is here: http://forum.xda-developers.com/showthread.php?t=988126
We accept anyone, but reserve the right to choose based on post count, join date and general XDA experience.
Posted in Galaxy Tab forums because this is where we come from

Bump - we need more testers!

Count me in. This is a great initiative. I have a Galaxy Tab with a Zenus flip portfolio style case.
Please by definition of 'xda-pro' user I hope you are not measuring this based on the amount of spam they spread in these forums, as this could potentially exclude your best testers. It's constructive feedback your after, not persistent noise or complaining, right?
Sent from my GT-P1000 using Tapatalk

No we are not... but we will be looking through peoples post history because of recent security issues with XDA betas. Its not enough, but we need testers.
In any case, we have tested it on the tab extensively in the last couple of weeks (we have 4 at the office), and there are almost no issues.

Hi. I'd also be happy to test something like this. I have many different cases: one of the ones that covers just the back and sides (so no trigger there), a cheap red leather book type, a white plastic one that forms a shell or a stand, the Samsung leather easel with D30 and the Otterbox Defender.

Thanks for the beta. Here's my feedback. Worked very well. Especially, my screen timeout being 10 minutes (because of e-reader) it seemed like a useful app. Also, it always gives the option of locking or not locking, which is useful. Now, the bad part. Noticed that my tab was unusually warm, battery was draining fast, checked consumption: 13%. Uninstalled. Hope you can fix this.

Hi everyone! A big thanks to all the beta testers! Just to let you know that the app will be avaliable in the android market from around 4PM GMT today.
n2s2k2india - regarding your power consumption issue, we have not experienced this on any of our devices. In fact, Killswitch does not even register on both my Xoom and Galaxy Tab. Looking at the spare parts battery use on both devices its 0.1 to 0.15 of total battery consumption...

by the way, the app is now on the market

Well done on getting this app released. Promise I'm not sour grapes for not being chosen as a beta tester! I've just installed from the market and unfortunately, it's not looking too good so far. So far, I have the following issue.
Both light and proximity sensor is flakey. Light sensor has worked once and not again. Can't get proximity to register. Accelerometer works though.
And just a question, is this app supposed to disable screen shutoff due to inactivity?
I'm using Roto JMIv2 if that helps.
Sent from my GT-P1000 using Tapatalk

Hello!
Im sorry youre having trouble with Killswich... lets see if we can do something about that!
Please update to the latest version if you havent already.
The Samsung Galaxy Tab does not have a proximity sensor (although the system reports it, this is just a glitch from the Galaxy S phones). This means you should be using the light sensor and the accelerometer. Your settings for the Tab should something be like this:
Enable Killswitch: tick
Admin Permissions: tick
Confirmation time: 10sec
Activation delay: 6sec
No-lock: Disable screen lock
Use proximity: no tick
Use light sensor: tick
Sensitivity: 10%
Use accelerometer: no tick
These are the settings Im using right now and they work perfectly.
The point of the app is also to avoid accidental sleep mode in a dark room through the popup dialog. Do not choose "Use accelerometer" unless you plan on using both light sensor and facedown at the same time. Instead, choose "Enable facedown mode only" if you see the popup dialog while using the tab in a dark room - this will disable the light sensor but enable facedown until you next swich on/ off.
Please dont hesitate to write again, or provide a logcat if the light sensor continues to malfunction.

I recommend to disable light sensor usage in killswitch, if your device provides proximity sensor, for better results.

Could we have a add supported version for free as well. If you need more testing i would be happy to test it on my wildfire
Sent from my GT-P1000 using XDA App

Hello everyone! Could those using the app on their Tabs provide us some feedback regarding its compatibility with roms that are floating about?
Also, Im sorry but we will not be providing an ad-supported version. For one thing, there is nowhere to put the ads without wrecking the general aesthetic, and for another ad support is not economically viable. Android programmers have obscene salaries
Its only $1.99 - if you own an android device you can most certainly afford it.

Same issue
krispyjim said:
Well done on getting this app released. Promise I'm not sour grapes for not being chosen as a beta tester! I've just installed from the market and unfortunately, it's not looking too good so far. So far, I have the following issue.
Both light and proximity sensor is flakey. Light sensor has worked once and not again. Can't get proximity to register. Accelerometer works though.
And just a question, is this app supposed to disable screen shutoff due to inactivity?
I'm using Roto JMIv2 if that helps.
Sent from my GT-P1000 using Tapatalk
Click to expand...
Click to collapse
I just purchased and installed the app on my Sprint Tab with similar results. Accelerometer works great but the light sensor doesn't register. I have adjusted the sensitivity from 10% -> 0% -> 100% with no affect. I even thought that maybe I needed to have the brightness set to auto but that too did not work.
When I tried to move over into direct light (12 inches from a bulb) the sensor worked right away at 10%. As I walked back over to my desk in a dim corner, the device went to sleep again. Once in the dim corner, the sensor could not differentiate between dim and closed case. I'm using the official Samsung case FYI.
I don't know if this helps you any but thought I would post my experiences. For the price I love the app if nothing more than for the Accelerometer and No Lock features. Keep up the good work!

Hi. Please read the help and tips section carefully. Killswitch is not a solution, its a hack. If you want it to work well, you have to understand how it works. Sprint tabs are exactly the same as any euro model, and we have had nothing but positive reviews from everyone with galaxy tabs in europe.
I made this app for myself. I have a gsm tab running overcome and everything works flawlessly.

+1 on the lightsensor problem, working one out of ten times i close the lid....
Sent from my GT-P1000 using XDA App

ftgg99 said:
Hi. Please read the help and tips section carefully. Killswitch is not a solution, its a hack. If you want it to work well, you have to understand how it works. Sprint tabs are exactly the same as any euro model, and we have had nothing but positive reviews from everyone with galaxy tabs in europe.
I made this app for myself. I have a gsm tab running overcome and everything works flawlessly.
Click to expand...
Click to collapse
that's not true is it? i beta tested this app and i couldn't get the light sensor to work either with stock roms or modded one's and I wasn't the only one.
it was very hit and miss and per the feedback provided with logs!
Seems to me the light sensor method just isnt enough on the tab all credit for other devices, but the tab just doesn't work correctly with it.

Never mind, looks like my gt has problems with the light sensor...... I'm using richardtrips kernel with the sensor fix but......
Sent from my GT-P1000 using XDA App

Im not sure where these problems youre having stem from. We have 3 tabs at the office, two stock and one overcome, and they all work flawlessly!
And of course those who beta tested but never sent us logcats, we would at least have tried to fix your problems...

brilldoctor said:
Could we have a add supported version for free as well. If you need more testing i would be happy to test it on my wildfire
Sent from my GT-P1000 using XDA App
Click to expand...
Click to collapse
If u were wondering why - im too young 4 a credit card. Would it be possable to have a 10 or 5 min free trial
Sent from my HTC Wildfire using XDA App

[Q] S Health Calibration?

S-Health's pedometer is pretty much useless. Is there anyway to calibrate it?

Have you updated the app? Try that first if you haven't. It updates under the Samsung app store, you have to log into your Samsung account first before it will let you update.
Sent from my Sprint Galaxy S4 using Tapatalk 4 Beta

Mine is very accurate. I've measured my distan c.f. e walked with an odometer and it matches my s-health numbers. I also used it on a treadmill the other day and distances matched also.
Sent from my SPH-L720 using Tapatalk 4 Beta

Sometimes, it's amazingly accurate. I'll run exactly 3 miles and it tells me I've gone 3 miles. Another day, I'll run 4 miles and it says I've gone 400 steps. I wonder if it has to do with how it's positioned on the body or something like that?

I use mine on my hip in a holster. Never had a problem.

Make sure your gyroscope is calibrated also.
Sent from my Sprint Galaxy S4 using Tapatalk 4 Beta

GiantJay said:
Make sure your gyroscope is calibrated also.
Sent from my Sprint Galaxy S4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
How does one calibrate one's gyroscope?

flu13 said:
How does one calibrate one's gyroscope?
Click to expand...
Click to collapse
setings-->my device-->motions and gestures, and you'll see an option for it in that menu
---------- Post added at 09:37 AM ---------- Previous post was at 09:36 AM ----------
lightiv said:
S-Health's pedometer is pretty much useless. Is there anyway to calibrate it?
Click to expand...
Click to collapse
mine is very accurate...
i only find it inaccurate when its in my front pocket and my leg starts twitching, which counts those as steps...which there was a way to stop that

eyecon82 said:
setings-->my device-->motions and gestures, and you'll see an option for it in that menu
---------- Post added at 09:37 AM ---------- Previous post was at 09:36 AM ----------
mine is very accurate...
i only find it inaccurate when its in my front pocket and my leg starts twitching, which counts those as steps...which there was a way to stop that
Click to expand...
Click to collapse
Hi All and thanks for the responses.
I did recently recalibrate the gyroscope and it did not help. I usually hold my phone in my hand while running. Is that a bad thing to do? What is the best position?
I downloaded Accupedio (?) and it was far more accurate than S-Health.

I wear my phone in an armband on my bicep, and as I said, that's not terribly accurate. This morning, I ran 3 miles and it currently says that I've gone 317 steps, most of which were probably between my car and my desk. I'm going to guess that it works a lot better in my pants pocket than it does on my arm.
Of course, I don't really care about the accuracy of S-Health. If I wanted to accurately track my runs, I would use MapMyRun. If I was concerned with tracking steps, I'd get something like a Fitbit.

I've given up on S Health. I have it updated and yesterday had the phone in my back pocket on the treadmill and it was still way off. I had Accupedo running also and it was very close to what the treadmill said.

Use Thermal Paste to Cooling the G3

Many people struggle with the heating issue on the G3. We know that high temperature is not good for the CPU. And I discovered a unique way to solve this issue. Check out this crazy video I made and hopefully this would help you on modding and overclocking!:fingers-crossed:
But keep in mind, I am not responsible for any damaged devices. This mod would damage your warranty.
G3 teardown guide from ifixit
and video is on youtube named "Lg G3 thermal cooling mod" (The video is little shaky due to youtube video software, sorry )
sorry about cannot post the direct links due to the new user policy

Pretty cool, haven't had any major heating issues in the short time ive owned the phone personally, but nice idea
Heres the video for anyone interested

JoinTheRealms said:
Pretty cool, haven't had any major heating issues in the short time ive owned the phone personally, but nice idea
Heres the video for anyone interested
Click to expand...
Click to collapse
thank you very much

Cool idea! I'm considering doing it now. (the yellowish tinge on the screen due to overheat is driving me nuts)

OtakuLi said:
Many people struggle with the heating issue on the G3. We know that high temperature is not good for the CPU. And I discovered a unique way to solve this issue. Check out this crazy video I made and hopefully this would help you on modding and overclocking!:fingers-crossed:
But keep in mind, I don't responsible for any damaged devices. This mod would damage your warranty.
G3 teardown guide from ifixit
and video is on youtube named "Lg G3 thermal cooling mod" (The video is little shaky due to youtube video software, sorry )
sorry about cannot post the direct links due to the new user policy
Click to expand...
Click to collapse
This looks awesome, well done! :good:
Could you give us some details before and after mod? Benchmark scores and temp?

Check the video, I use antutu and geekbench 3 for benchmarking. The temperature is around 60c+
And unstable core clock speed caused phone crash sometimes.
But after modding, issues solved
Sent from my LG-D855 using XDA Free mobile app

Thank you, hopefully this world help you, good luck on that
Sent from my LG-D855 using XDA Free mobile app

I don't know exactly what is the actual space between the 801 and the phone metal body but it realy looks like you put much too much thermal paste
What will happen soon or later is that all that thermal paste will start flowing all around the chip.
Then since most of the time when you use, and heatup, your phone it remains vertical, the thermal paste would probably contaminated all the battery slot.
I hope you did choose a dielectric thermal paste...

The thermal paste is fine and stay underneath the CPU, it does a really good job on cooling, it may be little too much in the video, but actually the gap between CPU and the metal is huge
Sent from my LG-D855 using XDA Free mobile app

OtakuLi said:
The thermal paste is fine and stay underneath the CPU, it does a really good job on cooling, it may be little too much in the video, but actually the gap between CPU and the metal is huge
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
it's the cooling affect great? Cause I'm a heavy user and my d851 always feels like it's going to explode from how hot it gets

Should work fine
Sent from my LG-D855 using XDA Free mobile app

A very good idea, never looked in to what is inside the phone! Will definitely be doing this tomorrow! [emoji106]

What temperatures are you getting during standard use (i.e. browsing, music etc. - not gaming)? I am currently getting 65-70 and would like to cool it down a lot.
Sent from my LG-D855 using XDA Forums

I did the modification yesterday and here are some logs before/after modification:
Before:
- CPU temp phone idle: 55-60 C
- CPU temp phone in use (Playing 2K video or browsing): 60-70C
After:
- CPU temp phone idle: 40C stable
- CPU temp phone in use (Playing 2K video or browsing): 45-55C
My next test will be in GPS mode in my car during a sunny day. This was shutting down my phone due to high temperature.
But so far, it seems to be positive while regarding only the measured temperatures.
PS: I'm using CPU Temperature app.

If you realy want this thermal mod, don't use thermal paste, use a good thermal pad.

bleuxeon said:
If you realy want this thermal mod, don't use thermal paste, use a good thermal pad.
Click to expand...
Click to collapse
I agree with this,
I would rather use a thermal pad then paste.
The pad could also easily be removed for waranty reasons without it being noticable.
Sent from my LG-D855 using XDA Free mobile app

Well, I don't know what kind of thermal pad you are using, but from my experience, thermal paste is MUCH more easier to remove and clean than a pad. Pads stick really bad.
I went with thermal paste and everything is ok, don't apply too much of it... It will not give better results anyway

bleuxeon said:
If you realy want this thermal mod, don't use thermal paste, use a good thermal pad.
Click to expand...
Click to collapse
Or maybe a copper shim, plus "thin" layers of thermal paste?
---------- Post added at 14:41 ---------- Previous post was at 14:38 ----------
OtakuLi said:
The thermal paste is fine and stay underneath the CPU, it does a really good job on cooling, it may be little too much in the video, but actually the gap between CPU and the metal is huge
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
Did you get a sense of "how huge" the gap is? If it is close 1mm maybe a thermal pad or a copper shim would be better; or what do you think?
---------- Post added at 14:43 ---------- Previous post was at 14:41 ----------
shouff said:
Well, I don't know what kind of thermal pad you are using, but from my experience, thermal paste is MUCH more easier to clean and remove than a pad. Pads stick really pad.
I went with thermal paste and everything is ok, don't apply too much of it... It will not give better results anyway
Click to expand...
Click to collapse
Why should you remove it if it works?

_jonte said:
Why should you remove it if it works?
Click to expand...
Click to collapse
In case you need to send it back to LG for a fix under warranty for example?

shouff said:
In case you need to send it back to LG for a fix under warranty for example?
Click to expand...
Click to collapse
Aah, point taken.

Its not the SD810 that overheats

Well today I installed the slyle potrait app which Sony finaly released, in two minutes I got the the notorious message saying that the camera will close if it keeps getting warm and after one more minute it closed. Could it be that the one to blame for the overheating is the camera software itself because I've never seen the message before and I've done some serious usage of the camera. I'll leave a link to the playstore so you can test it on your own!!! Any other thoughts would be much appreciated.
(https://play.google.com/store/apps/details?id=com.sonymobile.android.addoncamera.styleportrait

I was thinking install that app today... After your experience I won't install it. At least not for now.
Enviado do meu D6503 através de Tapatalk

Its not only this app problem. Open camera and go to Effects, play with it for few sec and you gonna get message that phone is to hot...
Its actually hilarious that most of companies had time to create window with info about to "hot phone", instead of spending this few minutes thinking: "wait... we just created phone and app that get really hot making it no usable at all... maybe we should fix that? hmmm?"
I would not be mad if companies would spend this 2-3 months getting their balls together and make optimized phone and apps, instead of covering their failure behind window like "phone need to cool down... closing app"
Sad part is that its not only Sony problem, most of phones have this... No one give a flying crap to think about it and fix it...

SolidSnake1976 said:
I was thinking install that app today... After your experience I won't install it. At least not for now.
Enviado do meu D6503 através de Tapatalk
Click to expand...
Click to collapse
I didn't say that the app is not good actually the effects are amazing but it is so frustrating that after 3 minutes the app closes

It never occurred to you that these apps are heavily using CPU and/or GPU?
Also, I did a heatsink mod (copper plating) inside my phone - kind of helps with heat still yet to post the photo guide though, will do it soon!
Sent from my Xperia Z using Tapatalk

CosmicDan said:
It never occurred to you that these apps are heavily using CPU and/or GPU?
Also, I did a heatsink mod (copper plating) inside my phone - kind of helps with heat still yet to post the photo guide though, will do it soon!
Sent from my Xperia Z using Tapatalk
Click to expand...
Click to collapse
i use creative effects all the time and i never had any problem with the camera closing because of heat (you cant be serious that style potrait uses that much the cpu)

My back panel is unglued because of heat(i would like to say that it's joke but nope) so im gonna change it next month so I would like to se how you made that heatsink mod.
I did a lot of such mods in netbooks and laptops, but phone don't have much room for such mods, so I'm really curious about that...

Akinaro said:
My back panel is unglued because of heat(i would like to say that it's joke but nope) so im gonna change it next month so I would like to se how you made that heatsink mod.
I did a lot of such mods in netbooks and laptops, but phone don't have much room for such mods, so I'm really curious about that...
Click to expand...
Click to collapse
I will share when I find the time to write it my back cover never came loose but I definitely noticed heat fatigue on both the SoC and... Another chip, can't remember what it was - maybe the radio (it was a semi-large chip, second biggest after the SoC). Photos are on my other phone and its flat at the moment, I'll find out when I actually do the guide and look at mainboard diagrams again
Sent from my Xperia Z using Tapatalk
---------- Post added at 06:41 PM ---------- Previous post was at 06:34 PM ----------
ExCuTioN said:
i use creative effects all the time and i never had any problem with the camera closing because of heat (you cant be serious that style potrait uses that much the cpu)
Click to expand...
Click to collapse
Why can't I be serious? Fact is that the SoC is one die containing CPU, GPU and RAM. In normal circumstances these are the highest consumers of power and generators of heat. An exception is if you've got heavy traffic on radio though, and I mean max bandwidth on a LTE or 802.11ac connection, for an extended period of time; I doubt it was that in this case. Or maybe it was...?
Also as a developer I know that software can have bugs that cause unnecessary CPU or GPU usage. You're just speculating here without hard evidence... If you can monitor CPU/GPU clock speeds and/or temperatures while this happens and show us that it's not high, then I will stand corrected.
Sent from my Xperia Z using Tapatalk

CosmicDan said:
Why can't I be serious? Fact is that the SoC is one die containing CPU, GPU and RAM. In normal circumstances these are the highest consumers of power and generators of heat. An exception is if you've got heavy traffic on radio though, and I mean max bandwidth on a LTE or 802.11ac connection, for an extended period of time; I doubt it was that in this case. Or maybe it was...?
Also as a developer I know that software can have bugs that cause unnecessary CPU or GPU usage. You're just speculating here without hard evidence... If you can monitor CPU/GPU clock speeds and/or temperatures while this happens and show us that it's not high, then I will stand corrected.
Sent from my Xperia Z using Tapatalk
Click to expand...
Click to collapse
well i tested it and it seems you were right but still i cant get it, why when both apps (creative effects and style potrait) use around 80% of the CPU, creative effects takes around 14-15 minutes to close and the style potrait just 2 minutes??

Maybe it's a bug. Is this a brand new app? I don't run stock sorry, not up to speed on the Sony specific stuff.
It could also be a simple case of neglect for our ol' Z.
Either way, cross your fingers and hope it gets solved in an update. It certainly sounds like it shouldn't be working so intensively.
Sent from my Xperia Z using Tapatalk

CosmicDan said:
Maybe it's a bug. Is this a brand new app? I don't run stock sorry, not up to speed on the Sony specific stuff.
It could also be a simple case of neglect for our ol' Z.
Either way, cross your fingers and hope it gets solved in an update. It certainly sounds like it shouldn't be working so intensively.
Sent from my Xperia Z using Tapatalk
Click to expand...
Click to collapse
no its not new and its not a case of neglect because i had flashed the app to my phone quite some time ago

But your OP says you installed some app which Sony just released?
I meant neglect from Sony; ever since KitKat our devices have had issues. But, on that note, how does (whatever old app you're talking about) working fine in the past but worse now = not a case of neglect? If the app is an identical version and your firmware is also identical version to when it was working well, but now its not working well, then it could very well be a case of wear and tear. I don't really understand, I'm just going through the process of elimination.
Sent from my Xperia Z using Tapatalk

CosmicDan said:
But your OP says you installed some app which Sony just released?
I meant neglect from Sony; ever since KitKat our devices have had issues. But, on that note, how does (whatever old app you're talking about) working fine in the past but worse now = not a case of neglect? If the app is an identical version and your firmware is also identical version to when it was working well, but now its not working well, then it could very well be a case of wear and tear. I don't really understand, I'm just going through the process of elimination.
Sent from my Xperia Z using Tapatalk
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Click to collapse
i flashed the app from a mod, the app wasnt meant to be installed at sony xperia z but now sony published the app at Play Store for all xperia (i think some old ones are not combatible). The app had the same issues before but i didnt want to post a thread before since it wasnt officialy combatible with my phone