Database Develop

[Q] Can't change brightness when battery low

When the battery gets low (not sure what percentage), the screen dims and there is no option to turn up the brightness. Is there a way to change this on a rooted Tab? Is it possible through the development API to adjust this, so that it can be implemented in an app?

Charge your battery. It comes on when like 5% remains anyway.
Sent from my SPH-P100 using Tapatalk

It comes on when there's 15%, as I got two more low-battery notifications after that. The problem is the tab is almost unusable at that brightness (especially outdoors or in a car during the day) and since I ran it for two more hours with Angry Birds and YouTube, I've lost two hours of battery life period. If it let me adjust brightness, I could at least use it until it depleted.
There has to be some way to change this, even if I have to root it, change a config file, or write an app to let me change it. Does anyone know how to modify this setting?

Genuine question only because it wasn't mentioned. Auto brightness isn't checked right?
Sent from my GT-P1000 using XDA App

Brightness was checked the first time, the second time it was unchecked and all the way up.

Did you notice, the backlight for the four haptics buttons at the bottom will also turn off at this point, which makes them impossible to see when it's dark.

You need check then uncheck auto, you be able to change the brightness
swyped from a galaxy far far away...

I'm having the same issue. I have a battery issue where my tab displays 1% when I have 20% or more remaining. Was wondering if you found a fix to this.

[Q] Screen Dims on low battery even when Power saver is turned off.

Hi,
My Screen Dims on low battery, even when Power saver is turned off. This behaviour shows since update to 4.1.
The integrated Power Saver is set to :
Turn Power saver on : at 50% battery level
Brightness : 50% Brigtness
Powersaver : OFF
But still when 5% Battery is reached, the screen goes totally dark.
So dark I cannot read it most of the time. I have to use my hand to cover for shadow, set the brightness up, and then I can use my phone again. This makes toe phone unusable when battery is low.
I hate this behaviour and would like to disable this.
How do I disable it ?
As mentioned, this was not the case with Android 4.0.3 (stock, rooted), it happens since I updated to 4.1.2 (stock, rooted)
The intuitive place to look ws the power saver, but those settings seem not to change anything.
I have searched the net and these forums, but could not find a place where to correct this settings.
I would like the screen to remain it's last setting, not dim at all.
Please help.

You didn't set the brightness to auto, did you? Because this is maybe the cause of dimming. I'm not sure but that's my first thought.
Sent from my LG-P880

Omario-242 said:
You didn't set the brightness to auto, did you? Because this is maybe the cause of dimming. I'm not sure but that's my first thought.
Sent from my LG-P880
Click to expand...
Click to collapse
Nope, tried both, auto and non-auto, in both cases when the 5% battery warning comes, screen is set to lowest possible level automatically, even in bright sunlight outside. In winter maybe, but in summer it suxx. Some automatic adjustment according to ambient light -might- be ok, but I would prefer that the backlight level is not changed at all.

Are you on stock? Or any custom rom?
I think you can maybe change this setting in build.prop or smth similar,
but I'm not that good when it comes to this.
Sent from my LG-P880

As I said in the first post, I use stock rom.
I have now looked through build.prop file. There is a " #Backlight " section, in there is some " ro.lge.lcd_default_brightness=146 " entry. I will change it and see what happens when I hit 5% battery. But since there is no other setting (like when battery below 5%) this does not look very promising..
Does your P880 show the same behaviour ?

It actually did the same when I was on stock (now I'm on WerewolfJB) but it didn't bother me back then (almost never got my phone below 5% battery.
And because I'm not on stock I can not look for the right line in build.prop or other system config files.
Sent from my LG-P880

Turning on Power Saver disables this feature
Sent from my LG-P880 using xda app-developers app

theofficialpimp said:
Turning on Power Saver disables this feature
Click to expand...
Click to collapse
So there is no "OFF" in the powersaver, it defaults to some weird settings when switched "OFF" ?
I will try that too.

Found solution here:
https://play.google.com/store/apps/details?id=mobi.pruss.superdim

^works!
but for me after i lock the screen and un-lock im back at screen min, i had to re-open rootdim each time and set it. even the "lock" feature doesnt seem to overthrow the system 5% batt life force dim. annoying but at least rootdim works, even if i do have to open it each time

disable low battery dim
ugzz said:
^works!
but for me after i lock the screen and un-lock im back at screen min, i had to re-open rootdim each time and set it. even the "lock" feature doesnt seem to overthrow the system 5% batt life force dim. annoying but at least rootdim works, even if i do have to open it each time
Click to expand...
Click to collapse
thanks the root dim it does work, you have no idea how long i search for this.Funny thing i came across this root app like 5 or 6 times and didn't think it would work cause i have lux dim the other root app and that one does bring the display back to 100 percent bright who would thought that the fix was this simple and yes like you say every time you lock the device it brings you back to dim mode but if you open the app and bring the slider all the way up it stays like that at 100 brightness, done that on my rooted galaxy s4 from cricket it works yey.

[Q] How do you set auto-brightness levels with gravitybox to get better battery life?

Just installed the gravity box and try to improve the battery life with adjusting auto-brightness levels.
Any recommended settings?
Thank you!

yghrv said:
Just installed the gravity box and try to improve the battery life with adjusting auto-brightness levels.
Any recommended settings?
Thank you!
Click to expand...
Click to collapse
Not sure about gravity box. But try Lux from app store. Once you learn how it works...it can do a lot.
Sent from my Moto X cell phone telephone.....

I'd like to know what the levels in Gravitybox mean and what are ways to set it so its not so bright. But the Google is not returning much useful...like this thread . The levels seems to be undocumented.

jb0ne said:
I'd like to know what the levels in Gravitybox mean and what are ways to set it so its not so bright. But the Google is not returning much useful...like this thread . The levels seems to be undocumented.
Click to expand...
Click to collapse
After fiddling around with the Gravitybox auto-brighness settings, I want to return to default. Can anyone post these?

If you're concerned about battery life, then you shouldn't use auto-brightness. It will drain the battery faster than a static screen brightness as it will constantly poll the light sensor and adjust the brightness. I'd suggest the pull-down slide brightness change method, which I use and it works quite well, at least to increase screen brightness. Turning it back down is usually more difficult, but still doable.

imnuts said:
If you're concerned about battery life, then you shouldn't use auto-brightness. It will drain the battery faster than a static screen brightness as it will constantly poll the light sensor and adjust the brightness. I'd suggest the pull-down slide brightness change method, which I use and it works quite well, at least to increase screen brightness. Turning it back down is usually more difficult, but still doable.
Click to expand...
Click to collapse
Gravitybox has a setting that lets you adjust brightness by sliding your finger along the statusbar at the top.

12 Ways to Save Battery without Root and break 7hrs SoT

I put together a list of things that helped me get 7 hours SoT on a charge (Wifi). Edit: 6.75hrs SoT. Edit2: 7.75hrs SoT No root access or modifications needed for these.
This is my first Android device and I wanted to share some of the things I've learned mostly reading these forums. It also annoys me to read users complain about their battery life but are unwilling to do anything about it. I hope this will help people to realize the full potential of their phone.
Llama, Tasker, etc: Automate everything you can to save battery. It can be more efficient to run a line of code then to tap the screen.
Force stop all the programs you don't really need running in the background in Settings > Apps > Running. Basically act like your own Greenify. Or use Greenify.
Wakelocks: Track the "Awake Time" of suspicious applications and services and either reboot or force stop them if necessary.
Disable Google applications you don't need. Myself I disabled Chrome, Gmail and News & Weather.
Disable: touch and typing vibration. I have type sounds On and touch sounds Off because those really add up on speaker.
Disable: NFC, Bluetooth, Wireless printing etc. Automate to run only when needed for no lost functionality.
Wifi: Automate to turn on only for Wifi zones of your choice. No lost functionality. Wifi always scanning: Off.
Notifications: Apps and games can send you unnecessary notifications. Disable them. Enable only what you need.
Hotword detection: off. This specifically drains SoT and saves only a single screen tap.
Widgets: These drain battery without ever showing up individually on the stats page. Silent killers.
Lux: Another silent killer even when set "On Wake only" and "Slow". Just by disabling Lux lite and a once-daily updated Feedly widget I noticed significant SoT gains. Using Llama to automate brightness is more efficient.
Speaker vs Headphones: The speaker seems to use more battery.
Two apps that can help you monitor your battery and phone with no root requirement:
Play Store Link.
Current Widget - Set to update manually on your home screen for minimal power draw. Check your charge and discharge rates along with battery temperature.
Play Store Link.
S Tools+ - This just popped up in the XDA apps section the other day. Detailed information on CPU states, Deep Sleep time and ALL your sensors, nicely graphed and very polished including transparent nav bar. Other than real time graphing of sensors this shouldn't be much of a drain.

Speaker vs headphones....what?? Care to explain how? I'm saying the difference is negligible.
Sent from my Nexus 5 using xda app-developers app

Yeah, you really don't need to do all that to save battery. Just don't turn on data until you need it and you'll get a week of standby on a single charge with this phone, and a full day of usage (or more depending on how much you use it).

monkeypaws said:
Speaker vs headphones....what?? Care to explain how? I'm saying the difference is negligible.
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I seem to drain more battery listening to music with speakers over headphones but its hard to tell and probably negligible, as you say.
Ober/Hydra said:
Yeah, you really don't need to do all that to save battery. Just don't turn on data until you need it and you'll get a week of standby on a single charge with this phone, and a full day of usage (or more depending on how much you use it).
Click to expand...
Click to collapse
Not sure if serious or not. That functionality is enabled on the phone by default and you'll see many people struggling to get over 3 hours SoT like that.
There are even reviews which seem to think topping 3 hours SoT is some kind of miracle. Most will answer that by saying: "you need root and flash x ROM with y kernel".
Sent from my Nexus 5 using Tapatalk

Oops

bblzd said:
I put together a list of things that helped me get 7 hours SoT on a charge (Wifi). No root access or modifications needed for these.
Llama, Tasker, etc: Automate everything you can to save battery. It can be more efficient to run a line of code then to tap the screen.
Force stop all the programs you don't really need running in the background in Settings > Apps > Running. Basically act like your own Greenify. Or use Greenify.
Wakelocks: Track the "Awake Time" of suspicious applications and services and either reboot or force stop them if necessary.
Disable Google applications you don't need. Myself I disabled Chrome, Gmail and News & Weather.
Disable: touch and typing vibration. I have type sounds On and touch sounds Off because those really add up on speaker.
Disable: NFC, Bluetooth, Wireless printing etc. Automate to run only when needed for no lost functionality.
Wifi: Automate to turn on only for Wifi zones of your choice. No lost functionality. Wifi always scanning: Off.
Notifications: Apps and games can send you unnecessary notifications. Disable them. Enable only what you need.
Hotword detection: off. This specifically drains SoT and saves only a single screen tap.
Widgets: These drain battery without ever showing up individually on the stats page. Silent killers.
Lux: Another silent killer even when set "On Wake only" and "Slow". Just by disabling Lux lite and a once-daily updated Feedly widget I noticed significant SoT gains. Using Llama to automate brightness is more efficient.
Speaker vs Headphones: The speaker seems to use more battery.
This is my first Android device and I wanted to share some of the things I've learned mostly reading these forums. It also annoys me to read users complain about their battery life but are unwilling to do anything about it. I hope this will help people to realize the full potential of their phone.
Click to expand...
Click to collapse
I suspected Lux was using battery but the actual app use is showing up as very very minimal. Less than 1%.
Its far too convenient! Does llama have the same exact function built in?

Don't forget to disable location reporting in Google Apps.
Sent from my Nexus 5 using Tapatalk

You also forgot to keep the phone off.
Sent from my Nexus 5 using Tapatalk

Ulver said:
You also forgot to keep the phone off.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
If you actually read the post you would realize there is no lost functionality.
Sent from my Nexus 5 using Tapatalk

7hr sot? No way...

bleuwave said:
7hr sot? No way...
Click to expand...
Click to collapse
The link is in the post, my good fellow.

Man I wish I could just stare at a 5 inch screen for 7 hours a day.
Not.
Sent from my Nexus 5 using XDA Premium 4 mobile app

I must admit that using lux from within llama allows me to refresh brightness on screen rotation too which is not bad at all at least.
Inviato dal mio Nexus 5 utilizzando Tapatalk

WATERYEW said:
Man I wish I could just stare at a 5 inch screen for 7 hours a day.
Not.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Gotta agree. The vast majority of users charge overnight and with my own setup - currently on stock rom and stock kernel (though I'm currently bouncing between that and Franco to see which I prefer) with pretty much everything always on (NFC, WiFi, data, location access, though I disable notifications from the likes of Facebook, Twitter, etc. just because I'm not that invested in social networks that I'd want constant updates) I can get 3+ hours SOT - which I'd assume is more than enough for most people. Greenify is to thank for most of my battery savings.
But don't get me wrong - for those who do need more SOT than that, the OP is fantastic advice, and I'll be coming back to this thread when I'm on holiday etc. and won't be able to charge every night.

great tips
kuddos to the OP
very helpful tips...hotword detection remains off for me most the time
as i work in a noisy environment and hardly make use of it unless im relaxed in office/ home

FuMMoD said:
Don't forget to disable location reporting in Google Apps.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Agreed :good:

Done most of those, still getting only around 3.5 hours SOT

bblzd said:
If you actually read the post you would realize there is no lost functionality.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
don't mind the haters. they're just mad that they only get 3 hours of screen on time and 10% battery drain per hour when deep sleeping
they would rather complain than take control of their device and if you dont use your own phone exactly like they use their phone, then they call foul and tell you that your results don't matter. they say the same thing to people that use their device like an ipod touch(by putting it in airplane mode).
haters will always hate

outofthisworld said:
I suspected Lux was using battery but the actual app use is showing up as very very minimal. Less than 1%.
Its far too convenient! Does llama have the same exact function built in?
Click to expand...
Click to collapse
I think it's just really hard to get good auto brightness on this phone right now due to the sensor. Using Lux Lite didn't help me very much since I was bouncing between very low and extremely high brightness but I imagine the full version could be more useful.
Llama is an extremely light weight application and uses only 6MB of RAM, the lowest of any service I've seen. I think it could add to Android System drain but using Cell Tower locations and properly set up conditions I don't think it will by much.
Thanks for the supportive comments. I really just want to help and have no hidden agenda here. We've known for months now that the N5 can get 8.9 hours SoT web browsing on WiFi and 6.9 hours web browsing on LTE. Of course Anandtech used perfect, non-root conditions with airplane mode On, Gnow off and zero apps or widgets; something that even I am unwilling to put up with. We can still strive to get as close to those numbers as possible.
Two apps that can help you monitor your battery and phone with no root requirement:
Play Store Link.
Current Widget - Set to update manually on your home screen for minimal power draw. Check your charge and discharge rates along with battery temperature.
Play Store Link.
S Tools+ - This just popped up in the XDA apps section the other day. Detailed information on CPU states, Deep Sleep time and ALL your sensors, nicely graphed and very polished including transparent nav bar. Other than real time graphing of sensors this shouldn't be much of a drain.

Generally speaking SOT depends on what you are doing.
I've been down this road and can get SOT times on any phone pushing 5 hours.
To say no loss of functionality is wrong. You state to kill half the apps that I use so that is a LOF to me.
The secret, well not really, is the brightness and network reception.
Turning down the brightness and getting max signal/bandwidth will affect the battery more than turning off apps. Remember the rule of thumb the longer the phone has to stay on for a wakelock the more the battery drains and that is SOT and sleep. What I mean is you'll drain your battery faster connected to a dialup internet connection than fiber at 1gig.... It's all about bandwidth and high signal strength and screen brightness.
Not hating just saying that no one person can say this will give you X number of hours of SOT when everyone's signal/bandwidth environment is different.

Auto brightness? Or control % yourself?

How do you control screen brightness on your Pixel 4 / 4 XL?
To help battery life, I have read that Ambient display or Adaptive Brightness and that EQ thing too, can be a bit of a battery drainer, and it's best to just set your brightness yourself. But there's no easy quick way to do that it seems? Other than going into Settings - Display, and sliding the bar up or down to get the specific % you want.
Is there an app, or what are you guys doing?

Zorachus said:
How do you control screen brightness on your Pixel 4 / 4 XL?
To help battery life, I have read that Ambient display or Adaptive Brightness and that EQ thing too, can be a bit of a battery drainer, and it's best to just set your brightness yourself. But there's no easy quick way to do that it seems? Other than going into Settings - Display, and sliding the bar up or down to get the specific % you want.
Is there an app, or what are you guys doing?
Click to expand...
Click to collapse
I'm a full manual kinda dude. Inside, i'll set it at 50, then up to 90 or so when I go outside. If it's really bright, then i'll hit my HBM widget :good:

I run it with adaptive brightness on and ambient EQ on. Time saved on micro managing something like brightness is worth a little battery life. I calibrate my adaptive brightness to 0% in pitch dark and don't touch it anymore.
Sent from my Pixel 4 XL using Tapatalk

EeZeEpEe said:
I run it with adaptive brightness on and ambient EQ on. Time saved on micro managing something like brightness is worth a little battery life. I calibrate my adaptive brightness to 0% in pitch dark and don't touch it anymore.
Sent from my Pixel 4 XL using Tapatalk
Click to expand...
Click to collapse
I like doing that thanks.

Auto!
I used to use manual for my OnePlus 7 Pro because that thing was horrible with setting brightness for me. It would always get too dim. This Pixel, however, has solid auto brightness and doesn't drastically increase or decrease.
Battery life part isn't an issue for me since I don't really notice a huge drain with it on + I'm almost always around a charger anyway.

For those that aren't aware the auto-brightness on these phones takes quite some time to fully adjust to your preferences. You need to keep fiddling it every time you're not satisfied and it will remember the setting you made, make note of ambient light, time of day, etc. and adjust accordingly until it has you pegged. This takes days, a week, more or less. Dutifully counsel it as to correct brightness and you may just find it works very well and can be left alone once you've got it in line. Think of it as a stubborn dog that must corrected until trained.

krabman said:
For those that aren't aware the auto-brightness on these phones takes quite some time to fully adjust to your preferences. You need to keep fiddling it every time you're not satisfied and it will remember the setting you made, make note of ambient light, time of day, etc. and adjust accordingly until it has you pegged. This takes days, a week, more or less. Dutifully counsel it as to correct brightness and you may just find it works very well and can be left alone once you've got it in line. Think of it as a stubborn dog that must corrected until trained.
Click to expand...
Click to collapse
Not for me. I literally just put it to 0% in pitch black and, for me, it's adjustments to all other ambient lights is perfectly fine for me. But you are correct that it can take some time but I say within a week and not multiple weeks.
Sent from my Pixel 4 XL using Tapatalk

I didn't say multiple weeks, I meant the time can be days or up to a week more or less, sorry if I didn't phrase that well. Mine was about a week as was the previous pixels before it. Anecdotally it seems it takes longer if you prefer your phone brighter in general but that's just based on my reading different observations people have had of it. Your own tend to fit that mold, you clearly prefer it dim(mer) simply because the phone really likes to keep it down in the stock model so if you were good to go with just one adjustment you lean that way.