Database Users

Automatic brightness vs manual

Hi guys
Which preference do you use? Is automatic brightness option best for battery saving?
i remember it was an official battery saving tip for iPhone and wondered if it's the case for N1.

eh, just keep it on the lowest brightness... thats the best bet

the problem with auto-brightness is that it fluctuates a bit too much if you're in a room with localised lights and shadows... even in a seemingly bright area to your eyes, the display will go to lowest brightness... i just found it personally annoying, as it would usually fluctuate when i wasn't expecting, and to a lower brightness than i could stand... i've since stopped using it... i set my brightness manually to about 25%... for me that's a good balance between a usuable brightness for all conditions, while still giving good battery life...

I use auto brightness with locale which toggles it on and off based on my location. But even before I did that I really didn't notice to much of a difference in battery levels at the end of the day.
I just wish there were min and max settings for auto brightness. Cause I am pretty sure I have never needed the brightness turned all the way up.

i prefer auto brightness if it works. my 1st N1 had a glitch where the screen brightness used to flicker. on my 2nd N1 the auto brightness does not adjust on full scale........(if you go into 100% dark room, the brightness setting must automatically drop to 0)

I too found that the auto-brightness flickered too much. I downloaded Brightness Level off the marketplace and never looked back...

Auto-brightness fluctuates too much for my liking. So, I just keep it set to middle brightness.

the light sensor is unstable, so manually 25% all the time..

Auto brightness too dark
In my Nexus autobrightness works ok outdoors, but indoors it sets the light too dark. I wish it`d work fine because it's a waste of time adjusting it manually every time you move into different light conditions.
I've read Nexus users report different behaviours of their light sensors, maybe it is a bad quality component of the phone. Is there an app which can modify the sensibility of the light sensor? Would be great to adjust this sensibility and set brightness always to auto with a little more brightness indoors in my case.

manual, 25% - the best balance of battery and light for me.

i use about 60%. I hated the automatic brightness because it was darker than I would like most of the time.
My position is, I bought a phone that has a high resolution, so why not give it the brightness to make the color "pop" like they should.

Auto or manual brightness..that is the question

I have been experimenting with brightness on my sgs and how it relates to battery life. So should I keep the brightness on auto or the lowest?
I have noticed that when my brightness is set on lowest, the phone will sometime turn the brightness up a lot for no reason. I think it should be on auto brightness.
Ideas?

on the notification bar up there if you sweep it left our right it'll adjust the brightness too, just found that or. pretty damned annoying.
my brightness is on it's lowest always, unless I need to see in the sun.

Adevem said:
on the notification bar up there if you sweep it left our right it'll adjust the brightness too, just found that or. pretty damned annoying.
my brightness is on it's lowest always, unless I need to see in the sun.
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Yeah.. In Froyo they don't have that "feature" (hopefully they don't enable it either).
I keep my light down to minimum too. I've had no probs looking at the screen here, but then again, it is winter and I am an evening person..

I'd say lowest setting is the best, the screen isn't difficult to see even at it's lowest. brightest just makes everything look more vibrant and awesome. you can have a separate brightness setting for the browser too.

i set mine to manual
the auto doesn't work well, i like it bright, and in auto mode, it is not bright enough for me
fakekullu said:
I have been experimenting with brightness on my sgs and how it relates to battery life. So should I keep the brightness on auto or the lowest?
I have noticed that when my brightness is set on lowest, the phone will sometime turn the brightness up a lot for no reason. I think it should be on auto brightness.
Ideas?
Click to expand...
Click to collapse

You are right. If you have your brightness set to Manual, you can adjust brightness by sliding left or right on the notification bar at the top.
It's a problem because you can by accident set it to high and therefore drain your battery fast.
I have setup Tasker to set brightness to 40 once every hour. 40 is about 16% of full brightness.
Regards,
Jkay

Crappy Automatic Brightness Sensor?

Is it just me or does everyone's Epic's have terrible brightness sensor hardware/software? My sensor seems to have about 2-3 settings of brightness, and goes from completely dim to super bright in random situations and nothing in between.
Cyanogen just posted on his twitter that in the past he changed the sensor's abilities through coding modifications. Could we do something of the sort for the Epic's sensor?

Agreed. The sensor is horrible. Also, the transition between brightness settings when set to automatic is near instant instead of slowly transitioning, which makes it more obvious that its changing brightness.

I would agree that it is terrible. Mine also send to sometimes turn auto brightness back on if I've turned it off.
It would be great if someone found a way to mod the code for it!
Sent from my SPH-D700 using XDA App

I thought the screen was just too bright at its lowest setting. Fortunately someone came up with a fix for it that can be found in the developer section. As far as the automatic sensor I would suggest turning off "Power Saving Mode" in the Settings>Sound & Display as well. I've read somewhere that this causes the brightness level to vary on its own.

cfiblc said:
I thought the screen was just too bright at its lowest setting. Fortunately someone came up with a fix for it that can be found in the developer section.
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Hehe, that was me. Stay tuned for more. I have coded up and will post, tonight, a new version that will let you modify the brightness curve (from the command line, for now)
As for automatic mode, I have figured out how to modify some aspects of it at the kernel level, such as the ambient light thresholds at which it switches to a different brightness level. By modifying the brightness curve, we can achieve at least some more control. But to make it really good may be significantly harder.
Personally, since manual brightness is always available by swiping horizontally on the status bar, I have little desire to use auto mode anyway.
- linuxuberant

The sensor is actually pretty sensitive. It's just that Samsung chose to have a really small range of brightness steps for automatic brightness.

Firon said:
The sensor is actually pretty sensitive. It's just that Samsung chose to have a really small range of brightness steps for automatic brightness.
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More like they installed an awesome dimmer switch and lights, but the fixture only does three modes; high, medium, and still pretty damn bright.

Automatic Brightness

Here's my dilemma... I like saving battery by setting my brightness level lower than the automatic setting (since the screen still looks great anyway), but I would like it if I didn't have to go into my settings manually to change the brightness level so that I can see the screen when in direct sunlight. Is there any way someone could develop a mod to have the automatic brightness, but about 20% dimmer? I don't know if it's possible, but it would be pretty awesome.
Sent from my HTC Glacier, powered by a flux capacitor.

geoffott said:
Here's my dilemma... I like saving battery by setting my brightness level lower than the automatic setting (since the screen still looks great anyway), but I would like it if I didn't have to go into my settings manually to change the brightness level so that I can see the screen when in direct sunlight. Is there any way someone could develop a mod to have the automatic brightness, but about 20% dimmer? I don't know if it's possible, but it would be pretty awesome.
Sent from my HTC Glacier, powered by a flux capacitor.
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I have my screen set pretty dim, and use the Power widget to crank up the brightness if I go outside.
You can also you the "Screen Filter' app to make the screen x% darker than the current setting. (which even allows you to make it darker than the dimmest brightness settting, which is really nice on the batteries.)
- Frank

geoffott said:
Here's my dilemma... I like saving battery by setting my brightness level lower than the automatic setting (since the screen still looks great anyway), but I would like it if I didn't have to go into my settings manually to change the brightness level so that I can see the screen when in direct sunlight. Is there any way someone could develop a mod to have the automatic brightness, but about 20% dimmer? I don't know if it's possible, but it would be pretty awesome.
Sent from my HTC Glacier, powered by a flux capacitor.
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I am current searching for the same thing.
temp solution is to Market > Dimmer (night mode) by geekyouup
It toggles auto brightness and sets back light to min. when on. click once, screen goes super dark, click it again, auto brightness take over. handy. (put it up to status bar w/ bar control and you can get to it when ever)
Problem with auto brightness right now is at it's lowest setting, the back light is still at about 25%. there is gotta be a way to change that in the settings.apk
or better yet, have an option to set your own ambient light to lcd brightness ratio for the auto brightness

option to set own ambient light ratio?
sleepyfu said:
there is gotta be a way to change that in the settings.apk
or better yet, have an option to set your own ambient light to lcd brightness ratio for the auto brightness
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I'm search for this also. I believe you can adjust this in CM7 but is there is a way to do this that is not ROM specific? I'm currently using RoyalGlacier with Faux123 kernel and I find the auto brightness setting for dim ambient to be too bright and the bright ambient to be not bright enough.

Does OP have control over adaptive brightness (6T) or is that all Pie? [issue]

EDIT: Wrong subforum, sorry.. please move to Q&A
Very happy with my 6T so far. Adaptive brightness has been a little bit wonky.
I work at my computer in a relatively dark environment. When I wake up my phone and look at it, brightness starts off around 15% and I can barely read the display. I hold my phone screen up to my monitor to get adaptive brightness to kick in, and brightness quickly goes up to about ~80% as expected. Then when I face it back towards me, it finally settles back in around 40% after a few seconds and stays there, which is perfect for my environment.
It seems like there's some kind of issue with adaptive brightness initializing the ideal brightness in a dimly lit environment. Yet it knows where the brightness should be set after it has been exposed to more light.
Is this all part of Android Pie or does OnePlus have some control over how this works?

Pie issue, I believe there is an app that helps, can't recall what the name is, most people seem happy with it.

Thread moved to Q&A

Mine does similar ,screen brightness fine ,then if unlock it comes back on very dim and I have to alert it in settings and adaptive doesn't always seem to work

The impression I get is that it isn't a learning adaptive as you see with Samsung, Pixel, and so on. You just get the same answer for the lighting every time it wakes up, or at least that's what I'm getting from mine.

Adaptive brightness is fully controlled by Pie. You can't set the base brightness in Pie and then let adaptive brightness control it from there.

Yeah I noticed the same thing too just a few days ago. Initially the phone handled fine, but now is always too low. Not sure where the sensor is, and if it is covered by the oem screen protector. If so then maybe that is the issue . The plastic OEM is a smudge magnet.

Yeah this was really annoying me last night. The brightness was fine, then I lock the screen, unlock and the screen is dim compared to before despite the light level staying the same. If I swipe down quick settings and toggle auto brightness off and on again it goes back up so it seems to be the auto brightness not picking up the correct level after unlocking the phone.

Guys have a read about adaptive brightness in Pie. Basically it learns from your behavior. You have to adjust it constantly to your liking and then the phone will learn after a week. Mine is noticeably better after 9 days. Almost perfect I would say. You just have to let it adapt and don't stop adjusting the brightness manually with adaptive option on.

App store, "Velis Auto Brightness", prolem solved..

I've noticed that the adaptive brightness is quite crap in oos. I never like adaptive brightness until I used a pie rom on my 5t, but op did something to the adaptive brightness and it definitely is not as good as Googles version

Guys Goog has just now announced they've added their learning adaptive brightness feature into Pie, and it's up to OEMs to use it at their discretion, Samsung for instance has their own learning adaptive brightness already in use. In any event this phone does not appear to have it. I had a Pixel XL 3 and the brightness there really is learning, you can it adjusting immediately and see a solid difference in a matter of days, by a week it's about perfect. This phone does not do that, mine hasn't adapted at all and is still just as bad as day one.
Any comment on that @Funk Wizard ?

download and setup Velis Auto Brightness from the play store, and you can get the same adaptive brightness..learns and after a few days the difference is great..

krabman said:
Guys Goog has just now announced they've added their learning adaptive brightness feature into Pie, and it's up to OEMs to use it at their discretion, Samsung for instance has their own learning adaptive brightness already in use. In any event this phone does not appear to have it. I had a Pixel XL 3 and the brightness there really is learning, you can it adjusting immediately and see a solid difference in a matter of days, by a week it's about perfect. This phone does not do that, mine hasn't adapted at all and is still just as bad as day one.
Any comment on that @Funk Wizard ?
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Still broken and its been like that for some time. Hopefully in the coming builds it should be taken up as priority :good:

So far it's not that good for me but I have to give some more days to train itself to my usage behaviour. Will see.