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I found the captivate drain battery too fast, even at the lowest brightness the phone gives. So I am thinking about maybe we could further turn down the brightness of the screen, this might save a lot battery.
But how??
Sent from my SAMSUNG-SGH-I897 using XDA App
I noticed that from JF6 to JH7, the brightness went down one tick lower. When I had stock JF6 set to manual brightness, I used to not have a hard time reading the contents on the display while the phone is on my desk, set to the lowest setting. When I did the JH7 OTA update, I noticed that the lowest brightness setting (when set to manual) is even lower. It made it harder to read. Hope that answers your question on brightness settings. There is more on JH7 than just the brightness settings changes. Plus, there are other things you can do to save battery power than just adjusting the display brightness
When I go into Settings, About and battery use.
It show that the Display using about 60% of the power.
Everything is relative on that page. If all you do is turn on the screen and browse, the "Display" battery usage will be higher. If you're on the phone for an hour or so (which, by default, the display turns off) you'll see "Voice calls" number go up. Etc.
baseballfanz said:
When I go into Settings, About and battery use.
It show that the Display using about 60% of the power.
Click to expand...
Click to collapse
Basically it's saying, the time you've had your device unplugged, 60% of the battery usage has been due to the display. and 40% of it is among other things.
There's an app on the market called Dimmer that will knock the brightness down a bit from the lowest setting. There's a small window that pops up that says "changing brightness from XX to 10" where XX = 30 on the lowest setting via the default brightness settings.
This makes me suspect that the brightness could go even lower, though I don't if it would impact the performance of the screen, given the Super AMOLED tech.
http://www.appbrain.com/app/dimmer-%28-night-mode-%29/com.geekyouup.android.dimmer
baseballfanz said:
When I go into Settings, About and battery use.
It show that the Display using about 60% of the power.
Click to expand...
Click to collapse
This is normal..All this means is your display is using the most and you don't have any background programs eating the battery.It should always show this as the highest from what I've been told.
In settings you can can either use the automatic brightness setting..or not... it is in Sound and Display..scroll down to display settings and you will see Brightness...Screen Time Out...and Power Saving Mode . Click on Power Saving mode....if you see the green check mark there..you are unchecking it..then open the Brightness tab..click on automatic brightness adjustment if checked and do the same thing ..and then ok. Your screen will darken.. You can then install the power bar on one of your screens by touching a unpopulated area large enough to accept the power bar strip. You will then be able to adjust the brightness by tapping on it..as well as being able to turn on and off wi-fi..blue-tooth..satellite..sync..and lastly brightness.
Mac
This is good. It turns my screen from 30 to 10, and it does save battery.
yourtvlies said:
There's an app on the market called Dimmer that will knock the brightness down a bit from the lowest setting. There's a small window that pops up that says "changing brightness from XX to 10" where XX = 30 on the lowest setting via the default brightness settings.
This makes me suspect that the brightness could go even lower, though I don't if it would impact the performance of the screen, given the Super AMOLED tech.
http://www.appbrain.com/app/dimmer-(-night-mode-)/com.geekyouup.android.dimmer
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I897 using XDA App
Theres also an app called Screen Filter which does the same thing as you guys have been describing, except it has a slider you can use to set what you would like, I use it for reading in bed, and it works wonderfully.
http://www.appbrain.com/app/screen-filter/com.haxor
Hey Everyone,
As has been mentioned many times in other threads:
1) The LCD is often the biggest battery drainer
2) The 'minimum' setting of the brightness setting is still needlessly bright.
It certainly can be pushed further down for dim/night/dark settings.
3) Certain apps "dim" the screen but are just changing the color, not the backlight. So while useful they still aren't helping your battery.
Following some tips from a different android phone, I found this file:
/sys/devices/platform_/nov_cabc.0/leds/lcd-backlight/brightness
Which appears to contain the current 'brightness #' of the LCD backlight.
Using the normal Brightness slider, the value changes from 30 - 255, with 255 being the brightest. So this clearly could be reduced further.
Setting 'Screen Filter' to 50% brightness has no effect on the value.
Here's something interesting:
Assume the screen is already set at lowest brightness.
When I use 'Widgetsoid' to set brightness to '1', the screen dims slightly, then brightens back up. The 'brightness' file gets set to 20.
'widgetsoid 20' feels the same as 'min brightness 30'. - I wonder if Android is enforcing minimum backlight?
Anyway, thought that would be interesting to note. I'm going to download some other screen dimmer apps and see what they do.
- Frank
I found this online which is very interesting reading:
http://www.scribd.com/doc/35972886/An-Analysis-of-Power-Consumption-in-a-Smart-Phone
At '30' they said the display consumed 7.8 mW, while at 255 it consumed 414 (!!!)
Various apps coud push the value to 20 - tasker, adjbrightness.
Tasker tries to set it lower but as with widgetsoid, you can see the screen get forced back up to 20.
adjbrightness can "set" it lower than 20, but the entire screen blacks out, even at 19. Remember where the other buttons are so you can restore brightness!
- Frank
Whoa, thanks for the information. That pretty insane but its an apparently in the Market: Screen Filter, saves a helluva lot of battery.
Edit: Nevermind, Frank shut me up LOL.
Sent from my HTC Glacier using XDA App
I read a thread that said that the stock rom just doesn't allow setting it that low.
Ah well
- Frank
ChodTheWacko said:
I read a thread that said that the stock rom just doesn't allow setting it that low.
Ah well
- Frank
Click to expand...
Click to collapse
Can you set it lower in other roms - like cm7?
netter123 said:
Can you set it lower in other roms - like cm7?
Click to expand...
Click to collapse
I've been playing with CM7 which has some nice features for customizing the auto-brightness settings as well as the "dim" value which seems to be the lowest value the screen will go to and what it gets set to when the screen dims before shutting off after a timeout.
For the Dim setting in CM7, the default is 20. The next highest setting in the picker is 18. I believe it goes down to 0 or 1. When set to 18 or lower the screen blanks out completely when dimmed. Depending on how you test this, you may have a problem getting the screen back, so be careful you know where your widget button is on the screen to bring it back... 20 seems to be the lowest value. However, while dim, in a very dark room it could certainly be even dimmer so I don't know why lower values don't work.
I've also found the light detector doesn't seem to detect a continuum of light levels. It seems to be quantized at particular values, so there's a pretty hard limit on how fine you can set the auto brightness levels since the lowest light reading it seems to take is not very sensitive. It can't seem to distinguish between a fully darkened room and a dimly lit room, so setting the lowest value automatically makes the screen too dark to be comfortable in many environments, but then too bright for a really dark room. I don't know if this is an issue with the ROM software or a hardware limitation of the sensor. I've set my lowest auto setting to 40 which seems to work well, then I manually switch it to the dim value (20) if I'm in the dark.
i downloaded this apps name
screen filter
it will reduce the brightness of your screen that is far more better than the android brightness..just dont set the brightness to 0 because it will turn your brightness off
thanks
will try it
works especially well with the "darkness" script at night, as mentioned in This Thread Thanks to Adolf1994 my LED will not blind me at night any more! (script only for rooted 2.1 and above)
how does the app work? and how much battery can it save, for example, a day?
Just what I wanted for day-to-day use.
I prefer renderFX's "night mode" for eye-saving, but this is good for battery-saving. My display is set at 0% and still is the most battery-hungry thing on my phone...
thanks
you reminded me that there's such a app
very useful
Sent from my X10i using XDA Premium App
WORD OF CAUTION!!!!!
DO NOT LEAVE THIS APP ON WHILE YOUR PHONE SLEEPS!!!
I haven't determined that this is the culprit, but last night I went from ~80% to ~25%, all the while having WI-FI off (I have 3G off always anyway), closed most programs, and had a screen filter on 30%.
I think the filter prevented the phone from fully sleeping or something....
Just some caution, please try it and report back.
I haven't experienced that and I've been using it for 5days..anyway in order to track the culprit,install an APk named process watch dog.
Ty man
Sent from my X10 using XDA App
phflorian said:
how does the app work? and how much battery can it save, for example, a day?
Click to expand...
Click to collapse
Actually, it will not save battery, if not drain it faster.
Here's why:
What this app is doing is applying a transparent dark filter over the screen,
so that you can look at it in a dark enviroment and not hurt your eyes from the brightness.
BUT the screen itself uses exactly the same power to light, but you don't see it, because the filter is there.
For example: if you set your brightness to FULL and then apply the filter and make it really dark, the battery drain will be the same as if you didn't apply the filter.
That's the way TFT screens work.
Now, this filter is running constantly, so it's a CPU stresser, thus battery drainer.
That being said, I love the app and I always have it on while I'm in the movies,
but I don't recommend it for daily use 24/7.
Thanks in the darkness it's just the best app
My_Immortal said:
Actually, it will not save battery, if not drain it faster.
Here's why:
What this app is doing is applying a transparent dark filter over the screen,
so that you can look at it in a dark enviroment and not hurt your eyes from the brightness.
BUT the screen itself uses exactly the same power to light, but you don't see it, because the filter is there.
For example: if you set your brightness to FULL and then apply the filter and make it really dark, the battery drain will be the same as if you didn't apply the filter.
That's the way TFT screens work.
Now, this filter is running constantly, so it's a CPU stresser, thus battery drainer.
That being said, I love the app and I always have it on while I'm in the movies,
but I don't recommend it for daily use 24/7.
Click to expand...
Click to collapse
I use it every night and I don't think it drains battery noticeably. 1% per hour maybe?
My_Immortal said:
Actually, it will not save battery, if not drain it faster.
Here's why:
What this app is doing is applying a transparent dark filter over the screen,
so that you can look at it in a dark enviroment and not hurt your eyes from the brightness.
BUT the screen itself uses exactly the same power to light, but you don't see it, because the filter is there.
For example: if you set your brightness to FULL and then apply the filter and make it really dark, the battery drain will be the same as if you didn't apply the filter.
That's the way TFT screens work.
Now, this filter is running constantly, so it's a CPU stresser, thus battery drainer.
That being said, I love the app and I always have it on while I'm in the movies,
but I don't recommend it for daily use 24/7.
Click to expand...
Click to collapse
+1 Actually, it will not save battery, if not drain it faster.
alamatnitotoy said:
i downloaded this apps name
screen filter
it will reduce the brightness of your screen that is far more better than the android brightness..just dont set the brightness to 0 because it will turn your brightness off
Click to expand...
Click to collapse
use the CF3D Nightmode its better and doesn't waste battery
DrKrFfXx said:
I use it every night and I don't think it drains battery noticeably. 1% per hour maybe?
Click to expand...
Click to collapse
Depending in your personal phone usage, it might not be a battery drainer, but, as I explained above, it's not a saver either.
I really love my Inspire, especially w/ Honeyogen installed. But the problem of viewing the screen in direct sunlight is a major problem for me, one that I cant seem to find a soultion for.
Ive tried different screen covers & different ROMs & even different Kernals, yet the Inspires Slcd screen is still terrible in direct sunlight, as all I see is my reflection.
My question is this... is there anyway to hack the screen to increase the brightness beyond the "normal" or "stock" brightness levels?
I would think that if developers can hack volume levels for the external speaker & also freq values for overclocking the cpu, that the same could be possible for the screen brightness!?
Thanks, i appreciate your thoughts!
jaw2012 said:
I really love my Inspire, especially w/ Honeyogen installed. But the problem of viewing the screen in direct sunlight is a major problem for me, one that I cant seem to find a soultion for.
Ive tried different screen covers & different ROMs & even different Kernals, yet the Inspires Slcd screen is still terrible in direct sunlight, as all I see is my reflection.
My question is this... is there anyway to hack the screen to increase the brightness beyond the "normal" or "stock" brightness levels?
I would think that if developers can hack volume levels for the external speaker & also freq values for overclocking the cpu, that the same could be possible for the screen brightness!?
Thanks, i appreciate your thoughts!
Click to expand...
Click to collapse
Thank you for this question. I am interested in a solution to this as well.
is your screen on auto brightness? take it off and adjust yourself. it will adjust to light depending on how much and how little you get.
If your rom is cm7 base go to menu, settings,cyanogenmod settings,display, automatic backlight,scroll down to light levels,check use custom, other levels, (this is what I do) change 1st 3 screen profiles from 41 to 61, 61 to 81, 81 to 101, then hit save and apply. The higher the # the brighter the screen. Those settings are pretty good on battery and definitely helps on making the screen more viewable outside and in bright rooms. Hour this helps
Sent from my Inspire 4G using XDA App
Thanks for trying, but of course I've set my brightness levels myself. Auto-brightness doesn't do it for me.
I'm just surprised that there aren't hacks for screen brightness. Just as speakers levels & the CPU are governed to a certain threshold in stock configs, I would think the screen is governed and has much higher brightness levels it can go beyond.
evostevo1 said:
If your rom is cm7 base go to menu, settings,cyanogenmod settings,display, automatic backlight,scroll down to light levels,check use custom, other levels, (this is what I do) change 1st 3 screen profiles from 41 to 61, 61 to 81, 81 to 101, then hit save and apply. The higher the # the brighter the screen. Those settings are pretty good on battery and definitely helps on making the screen more viewable outside and in bright rooms. Hour this helps
Sent from my Inspire 4G using XDA App
Click to expand...
Click to collapse
Yes, my ROM is CM7 based. But I assume these custom levels are for the Auto-Brightness mode?
Also, where exactly do I make these changes? Because the "screen" values are already at 41, 61, 81, 112 and so forth. So I assume these values have been changed by my ROM developer or are they CM7 defaults? Or do I have it all wrong? LOL. Thanks again.
daddioj said:
is your screen on auto brightness? take it off and adjust yourself. it will adjust to light depending on how much and how little you get.
Click to expand...
Click to collapse
Thanks for trying, but of course I've set my brightness levels myself. Auto-brightness doesn't do it for me.
I'm just surprised that there aren't hacks for screen brightness. Just as speakers levels & the CPU are governed to a certain threshold in stock configs, I would think the screen is governed and has much higher brightness levels it can go beyond.
Yes, this is for auto brightness. You do have the correct defaults. I bumped the first 3 profiles up by 20 and screen is brighter at lower levels.
Sent from my Inspire 4G using XDA App
also would like to know if there is any way to do this! bump!!!!
evostevo1 said:
Yes, this is for auto brightness. You do have the correct defaults. I bumped the first 3 profiles up by 20 and screen is brighter at lower levels.
Sent from my Inspire 4G using XDA App
Click to expand...
Click to collapse
Ok, but my question is does this actually make the screen any brighter than the highest stock brightness level?
Or does this just change the values, so that the lower values are brighter, but no brighter than the stock highest level?
no brighter than brightest stock value
Sent from my Inspire 4G using XDA App
So why can you developers increase & hack the speaker and the CPU values and MAX out their potential, yet the screen's potential is wasted and we are stuck with dark screens that can't be seen very well outdoors?
It doesn't make sense to me. The screen backlight must have more potential, they don't push ANY hardware to it's max in stock configurations.
Come on developers, we need you again!
FALSE - juice defender's ultimate (maybe even pro) app can adjust it higher than the 100% brightness value. Only problem with this is that you have to let it control your brightness settings, but there's a bug that doesn't allow you to install apk's manually - so you have to disable the brightness while you install apks (or you could just install through adb lol). so yes, there is a way.
https://market.android.com/details?id=com.latedroid.ultimatejuice&feature=search_result
nhshah7 said:
FALSE - juice defender's ultimate (maybe even pro) app can adjust it higher than the 100% brightness value. Only problem with this is that you have to let it control your brightness settings, but there's a bug that doesn't allow you to install apk's manually - so you have to disable the brightness while you install apks (or you could just install through adb lol). so yes, there is a way.
https://market.android.com/details?id=com.latedroid.ultimatejuice&feature=search_result
Click to expand...
Click to collapse
Thanks! Didn't know this.
Sent from my Inspire 4G using XDA Premium App
nhshah7 said:
FALSE - juice defender's ultimate (maybe even pro) app can adjust it higher than the 100% brightness value. Only problem with this is that you have to let it control your brightness settings, but there's a bug that doesn't allow you to install apk's manually - so you have to disable the brightness while you install apks (or you could just install through adb lol). so yes, there is a way.
https://market.android.com/details?id=com.latedroid.ultimatejuice&feature=search_result
Click to expand...
Click to collapse
Um no Juicedefender does'nt raise the screen brightness ANY higher than you normally can w/ the stock brightness slider. All that does is mess with the Auto-Brightness settings.
Alot of people seem to get the Auto-Brightness settings confused with what I am asking. I want to be able to raise the brightness beyond the MANUAL brightness slider. If you raise the auto-brightness setting, your STILL limited to the max value that's on the manual brightness slider. I want THAT manual setting to be pushed beyond the normal "stock" value, which I guess is impossible......can't understand why when almost every other hardware is hacked to allow better performance.
jaw2012 said:
Um no Juicedefender does'nt raise the screen brightness ANY higher than you normally can w/ the stock brightness slider. All that does is mess with the Auto-Brightness settings.
Alot of people seem to get the Auto-Brightness settings confused with what I am asking. I want to be able to raise the brightness beyond the MANUAL brightness slider. If you raise the auto-brightness setting, your STILL limited to the max value that's on the manual brightness slider. I want THAT manual setting to be pushed beyond the normal "stock" value, which I guess is impossible......can't understand why when almost every other hardware is hacked to allow better performance.
Click to expand...
Click to collapse
Okay sorry just looked at juice defender again. It allows you to only change the shape of the brightness curve. As for forcing a brighter screen level I'm blank on that. Have you manually set it to 100% and its still. Not bright enough?
Sent from my Inspire 4G using XDA Premium App
You cant overclock the values of your android hardware "screen" for brightness and dimness since it can only work properly on a given threshold hence any more than that is negligible.
I've been using my G Flex 2 H959 for more than 1 year and I'm loving it in every way except one thing, the screen brightness. The screen is damn too bright to use it in the dark. It is so bright that the only way i can use it in the dark is as a flashlight. Seriously!
So is there any mods that can adjust the minimum screen brightness setting? I'm currently on V15E-SEA ROM and haven't root it yet.
Sent from my SHIELD Tablet K1 using XDA-Developers mobile app
Hey, there is only apps that you can find on play store. In my case, I use "Night Owl".
Sent from my LG-H955 using XDA-Developers mobile app
Hi everybody,
I couldn't create a new Thread because I am new, that's why I Post this here:
i tried a few screen filter apps to analyze if they would actually improve my batter life with the following setting:
I Played a 40 minutes video file, sound off for no side effects
Battery not at 100% to avoid calibration shift stuff
No extreme load before to avoid other misleading battery measurements..
With A:
Pixel filter app: pixelize almost to the maximum (actually custom setting, i would say about 80-90 % dead pixels)
System brightness: to max (i assumed maximum differences with this)
B:
Darker app: darken to 20%
System brightness to max
C:
No filter app
System brightness to max
In each Case I dropped 9 to 10 % with every run... This is unexpected..
1st question: anybody else with the same findings?
2nd: any ideas for reasons for this? (i know that 40 minutes isnt THAT long, but 10% is i think)
I use Lux to go below the minimum brightness. It is also a better solution for auto-brightness if you can configure it well.
Yea, I tried Lux a while ago..
U are right, it is well configurable for auto brightness BUT
On the one hand it's interface is oldscool ugly and userunfriendly (just like a real professional Application) - so there is no well usable notification if u want to override lux for short e.g.
On the other hand lux doesnt dark the navigation bar buttons like darker does <- this is a critical point in dark conditions
And on the third hand, if you have or like, lux won't effect battery life like any other filter App, or is it just me??