Develop Bugs

Auto Brightness working for you?

Hi Guys,
So I finally got the desire after being with an iPhone for the past 18 months. Lovely phone so far, even if it feels a little 'work in progress' in some depts.
Anyways!
Have any of you with the phone enabled auto brightness? Does it work? When I jump into the settings to enable it it seems to kick in (once i tick the auto brightness checkbox) but once I actually hit OK to save the changes the screen brightness shoots up again and then doesnt seem to react to ambient light.
weird.
I am running the t-mobile android (uk)

Yep, I have the same thing, glad it's not just me then!
I don't think I've seen it adjust by itself at all...

It works for me and I have seen it adjust.

im not sure really if it works because it always seems the same? i have changed it to 30% now which is just acceptable and we ll see if it gives any battery boost

cez10 said:
im not sure really if it works because it always seems the same? i have changed it to 30% now which is just acceptable and we ll see if it gives any battery boost
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Click to collapse
That's the idea, auto brightness adjusts so that the screen looks the same brightness to your eye at any light level. When it's dark the brightness decreases and when it's light the brightness increases thus you see it as thee same due to the way your eye is already adjusted.

cez10 said:
im not sure really if it works because it always seems the same? i have changed it to 30% now which is just acceptable and we ll see if it gives any battery boost
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Click to collapse
EroThraX said:
That's the idea, auto brightness adjusts so that the screen looks the same brightness to your eye at any light level. When it's dark the brightness decreases and when it's light the brightness increases thus you see it as thee same due to the way your eye is already adjusted.
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Click to collapse
yeah Lol exactly, thats the whole point of auto screen adjustment. if you are indoors all (or most of) the time like me than keep it manual to 30-50%. otherwise leave it auto

Mine works a treat the only thing i do is when i go out the house i turn the brightness to manual and put it on full, as this is the only bad side to this phone the led does suffer in direct sun so full brightness is required.

I haven't seen any change in my screen brightness, whether in full sunlight or middle of the night in a dark room!
Is a bit annoying, would like to know if it can be fixed or we're waiting for the next firmware...

Where's the sensor ? With the Hero, placing a finger over the top part of the phone tricked the sensor but it doesn't seem to on the Desire. Interestingly though, there must be something there, the way the screen flashes up when you remove the phone from your ear

warpkid said:
Hi Guys,
I am running the t-mobile android (uk)
Click to expand...
Click to collapse
Works fine here

It seems that on my Desire the only time the automatic brightness actually tests the light is when I unlock my screen.
I can actually see the brightness change then, but if I switch lights on/off while it's already unlocked it doesn't automaticly adapt to the light.

I only checked it through the Android SDK using Dalvik Debug Monitor and the phone certainly did continuously check and correct screen brightness according to it. Visually, it was too difficult to discern what was happening and when due to my own visual limitations when the amount of light changed.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk

Auto brightness always low

Using stock 4.0.1 here, and have always had the brightness set to auto. But it never seems to do anything? If I am in a light or dark room it is always dark, often darker than the lowest brightness setting.
I am just worried that the sensor might not be working, if the phone needs to be sent back it needs to be done soon. Anyone else with this issue? I know the sensor that turns off the phone screen when in call works, but the auto brightness might use a different one.

Fatila said:
Using stock 4.0.1 here, and have always had the brightness set to auto. But it never seems to do anything? If I am in a light or dark room it is always dark, often darker than the lowest brightness setting.
I am just worried that the sensor might not be working, if the phone needs to be sent back it needs to be done soon. Anyone else with this issue? I know the sensor that turns off the phone screen when in call works, but the auto brightness might use a different one.
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Click to collapse
Auto brightness is just simply low on this device. There are some hacks in the dev section to increase it...but they don't work on my ROM.
I just started using juicedefender to adjust the auto birghtness

So auto brightness itself is broken and sensor is pry OK? I wonder if there are any apps to test it.

Fatila said:
So auto brightness itself is broken and sensor is pry OK? I wonder if there are any apps to test it.
Click to expand...
Click to collapse
Simply put a bright light to it and watch the screen brighten up. The sensor is fine.. auto brightness simply is a little too conservative, probably because more people would moan about battery life than screen brightness.

My auto brightness works just fine. Sometimes I have to the screen off then on for it to adjust. Other than that, the levels are fine. I'm on 4.0.3.
Sent from my Galaxy Nexus using XDA App

Brightness reduced when some apps launched

With auto-brightness turned off and brightness turned up all the way, I am seeing the brightness go down when some apps are launched and turn back up when the app is closed. I noticed this today when launching GoChat and then also saw it when launching the stock jellybean web browser. I am not sure but I think this has only been happening since the last software update (T-Mobile USA).
I wonder if others are noticing this.

gruuvin said:
With auto-brightness turned off and brightness turned up all the way, I am seeing the brightness go down when some apps are launched and turn back up when the app is closed. I noticed this today when launching GoChat and then also saw it when launching the stock jellybean web browser. I am not sure but I think this has only been happening since the last software update (T-Mobile USA).
I wonder if others are noticing this.
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Click to collapse
Saw the same thing when I launched camera app, I am on the latest update.
One difference is that I'm on auto bright and the brightness never came back
Sent from my SGH-M919 using xda premium

gruuvin said:
With auto-brightness turned off and brightness turned up all the way, I am seeing the brightness go down when some apps are launched and turn back up when the app is closed. I noticed this today when launching GoChat and then also saw it when launching the stock jellybean web browser. I am not sure but I think this has only been happening since the last software update (T-Mobile USA).
I wonder if others are noticing this.
Click to expand...
Click to collapse
From DisplayMate:
Since the display often uses 50 percent or more of the total Smartphone power, various display power management schemes are frequently used. The Galaxy S4 uses one innovative approach to overcome this – when Automatic Brightness is turned on, the Peak Brightness becomes significantly brighter in high ambient lighting than is possible with Manual Brightness, up to as high as 475 cd/m2, which is 34 percent higher than is possible with Manual Brightness. This is done so that users can’t permanently set the brightness to very high values, which would run down the battery quickly.​From Samsung:
Samsung Adapt Display: The Galaxy S4 "learns" what you are viewing and adjusts the display's brightness accordingly. If the phone senses you are reading an article, for example, it will illuminate from a more muted brightness.​

BarryH_GEG said:
From DisplayMate:
Since the display often uses 50 percent or more of the total Smartphone power, various display power management schemes are frequently used. The Galaxy S4 uses one innovative approach to overcome this – when Automatic Brightness is turned on, the Peak Brightness becomes significantly brighter in high ambient lighting than is possible with Manual Brightness, up to as high as 475 cd/m2, which is 34 percent higher than is possible with Manual Brightness. This is done so that users can’t permanently set the brightness to very high values, which would run down the battery quickly.​From Samsung:
Samsung Adapt Display: The Galaxy S4 "learns" what you are viewing and adjusts the display's brightness accordingly. If the phone senses you are reading an article, for example, it will illuminate from a more muted brightness.​
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Click to collapse
Well, I have auto-brightness, auto adjust screen tone and power saver ALL TURNED OFF, but this 'feature' persists... and as I said, this is not just during web browsing, this is also during messaging with a 3rd party app, namely GoChat, with black background theme.... this is just not a smart feature.

maybe this is taken care of in the new update. i haven't unpacked it just yet. hoping to do that over the weekend or maybe even tonight.

gruuvin said:
this 'feature' persists.
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Click to collapse
What you're describing sounds like how Adapt Display is supposed to work. Does the display act any differently when you enable Adapt Display?

gruuvin said:
Well, I have auto-brightness, auto adjust screen tone and power saver ALL TURNED OFF, but this 'feature' persists... and as I said, this is not just during web browsing, this is also during messaging with a 3rd party app, namely GoChat, with black background theme.... this is just not a smart feature.
Click to expand...
Click to collapse
I have the same issue. Turned everything off completely and it still happens. I posted about a week ago and some people were having the same issue.
Some people said it was adapt display on, but I have it off. Once I switched to.the CM10.1 the issue went away. I switched back to wicked Rom and I'm still getting the same problem.
Maybe a dev will eventually figure it out while building a Rom
Sent from my SGH-M919

Actionx1 said:
I have the same issue. Turned everything off completely and it still happens. I posted about a week ago and some people were having the same issue.
Some people said it was adapt display on, but I have it off. Once I switched to.the CM10.1 the issue went away. I switched back to wicked Rom and I'm still getting the same problem.
Maybe a dev will eventually figure it out while building a Rom
Sent from my SGH-M919
Click to expand...
Click to collapse
It seems like this is a feature that cannot be disabled by the end user. This is from Anandtech's review
"On the brightness front, the SGS4 includes dynamic contrast functions that cannot be disabled and change as a function of what is being displayed. There's an "auto adjust screen tone" checkbox under display but don't let that fool you, that doesn't disable dynamic contrast, just white point."
http://www.anandtech.com/show/6914/samsung-galaxy-s-4-review/8
If it really annoys you, you can always try rooting it and install CM10. I'll be a drastic change but at least you wont have to deal with Samsung's bloat

G Pro Auto brightness not Working

Just curious if anyone else is having this issue.
I have the box checked, but I found myself manually adjusting, thinking it just wasn't very sensitive. I turned on auto brightness, moved the slider all the way to dim, went out to the sunlight, and it had no effect. Unchecked, and rechecked the box, restated the phone, did the opposite in a dark room... No effect.
Swifted from my LGOG-Pro

davidusr said:
Just curious if anyone else is having this issue.
I have the box checked, but I found myself manually adjusting, thinking it just wasn't very sensitive. I turned on auto brightness, moved the slider all the way to dim, went out to the sunlight, and it had no effect. Unchecked, and rechecked the box, restated the phone, did the opposite in a dark room... No effect.
Swifted from my LGOG-Pro
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Click to collapse
I believe the slider sets the maximum brightness. So when you go out in the sunlight the spot where you placed it is the brightest it will get.

mrfeuss said:
I believe the slider sets the maximum brightness. So when you go out in the sunlight the spot where you placed it is the brightest it will get.
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Click to collapse
I thought that also... But when I had the slider at full bright, with auto turned on, in a pitch black room, it should have dimmed, correct?
Swifted from my LGOG-Pro

Looks like my phone might be doing the same thing... I'm wondering if I should swap my phone out before it's too late to exchange it for an S4.

+1 in the same boat
Sent from my LG-E980

davidusr said:
I thought that also... But when I had the slider at full bright, with auto turned on, in a pitch black room, it should have dimmed, correct?
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Yeah, you're right. Do you have a screen protector on that might be interfering with the ambient light sensor, by any chance?

mrfeuss said:
Yeah, you're right. Do you have a screen protector on that might be interfering with the ambient light sensor, by any chance?
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Click to collapse
Butt naked! No case, nothing... I see I'm not alone though.
Swifted from my LGOG-Pro

davidusr said:
Butt naked! No case, nothing... I see I'm not alone though.
Swifted from my LGOG-Pro
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Click to collapse
Same here must be a bug. But I don't use that function so no biggie for me.
Sent from my Nexus 7 using xda premium
---------- Post added at 08:02 PM ---------- Previous post was at 07:49 PM ----------
nthknd said:
Same here must be a bug. But I don't use that function so no biggie for me.
Sent from my Nexus 7 using xda premium
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Click to collapse
Seems to work with a third party app so I think its software related
Sent from my LG-E980 using xda premium

I don't think it's a bug. The auto brightness on some LG phones doesn't work like the rest of Android phones. On some LG phones, you set the brightness to a certain level and the auto brightness will work around that particular level.
Say you have it at 75% brightness and auto brightness on, the level will go up to maybe about 85% while outdoors and maybe to about 65% in a dim room. Set it at 35% brightness with auto brightness on, the level goes up to 45% in a bright area and 25% in a dark area. That's how my old iPhone 4 used to work.

Sharpshooterrr said:
I don't think it's a bug. The auto brightness on some LG phones doesn't work like the rest of Android phones. On some LG phones, you set the brightness to a certain level and the auto brightness will work around that particular level.
Say you have it at 75% brightness and auto brightness on, the level will go up to maybe about 85% while outdoors and maybe to about 65% in a dim room. Set it at 35% brightness with auto brightness on, the level goes up to 45% in a bright area and 25% in a dark area. That's how my old iPhone 4 used to work.
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Click to collapse
The way you described the functionality is what I have witnessed mine doing. I had to play around with it for a few days before I figured out what it was doing. No matter which level of brightness I set, auto brightness will adjust up and down from there based on ambient lighting. I do like having this option since it basically lets you further tweak the auto brightness to a comfortable level. On my other phones, a lot of the times the auto brightness was either to bright or too dark compared to what I would have preferred.

I thought there was something wrong with the auto brightness on mine as well. I have it on 70% auto bright set and it never seems to change. I have a screen protector but it has cutouts around the camera and other sensors and ear piece so I knew it wasn't that and I also tested it prior to putting the screen protector on.
Seems odd that LG would go a different route on what auto brightness is compared to the rest of the Android OEM's. sort of defeats the purpose but perhaps that is why we have to keep the setting so high to begin with.

RaptorMD said:
I thought there was something wrong with the auto brightness on mine as well. I have it on 70% auto bright set and it never seems to change. I have a screen protector but it has cutouts around the camera and other sensors and ear piece so I knew it wasn't that and I also tested it prior to putting the screen protector on.
Seems odd that LG would go a different route on what auto brightness is compared to the rest of the Android OEM's. sort of defeats the purpose but perhaps that is why we have to keep the setting so high to begin with.
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Click to collapse
I got mine to work. Its kinda strange. I was playing around and I shot a video as I played the video back I hit the menus button and there is a setting for auto dimming so I check it and my phone dimmed so then I checked to see if my main auto brightness would work so I went into settings and checked auto bright there too and the screen dimmed. Havent been outside yet but before this the setting did nothing see if you guys can get it to work on yours.
Sent from my LG-E980 using xda premium

nthknd said:
I got mine to work. Its kinda strange. I was playing around and I shot a video as I played the video back I hit the menus button and there is a setting for auto dimming so I check it and my phone dimmed so then I checked to see if my main auto brightness would work so I went into settings and checked auto bright there too and the screen dimmed. Havent been outside yet but before this the setting did nothing see if you guys can get it to work on yours.
Sent from my LG-E980 using xda premium
Click to expand...
Click to collapse
mine too, the 'auto brightness' seem doesn't work properly, just got dimmed, but not working as well as other phones's auto brightness did

Sharpshooterrr said:
I don't think it's a bug. The auto brightness on some LG phones doesn't work like the rest of Android phones. On some LG phones, you set the brightness to a certain level and the auto brightness will work around that particular level.
Say you have it at 75% brightness and auto brightness on, the level will go up to maybe about 85% while outdoors and maybe to about 65% in a dim room. Set it at 35% brightness with auto brightness on, the level goes up to 45% in a bright area and 25% in a dark area. That's how my old iPhone 4 used to work.
Click to expand...
Click to collapse
Yes, autobrightness on LG works this way since ICS was rolled out for LG Nitro. At 100% even with autobrightness screen will not dim, and at 0% level with or w/o autobrightness screen will not light up.
RaptorMD said:
Seems odd that LG would go a different route on what auto brightness is compared to the rest of the Android OEM's. sort of defeats the purpose but perhaps that is why we have to keep the setting so high to begin with.
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Click to collapse
No, it's right way because brightness sensor works different than human eye and like was said here other phones usually set brightness too dim or too bright using that sensor.

I also think the work Auto Brightness is on the phone E980 strange ... I do not see any change in brightness depending on the ambient light ... Not like all the other android phones

Billy Madison said:
Yes, autobrightness on LG works this way since ICS was rolled out for LG Nitro. At 100% even with autobrightness screen will not dim, and at 0% level with or w/o autobrightness screen will not light up.
No, it's right way because brightness sensor works different than human eye and like was said here other phones usually set brightness too dim or too bright using that sensor.
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Click to collapse
If that is the case, why is there no effect of ambient light on the screen??? The brightness remains the same whatever be the light condition.

I thought my phone had the same issue as everyone else but noticed this weekend when I stepped into a very bright area my screen automatically adjusted the brightness to a higher setting.
Sent from my LG-E980 using Tapatalk 2

now works correctly in this firmware: http://forum.xda-developers.com/showthread.php?t=2419802

Mine has worked from day one and better than my GnoteII I upgraded from... As others have said, it's configured around the amount of brightness you originally set it to.

where is the light sensor of the OGPro located...?

Adaptive Display Brightness Problem

Worked Perfectly fine on Oreo but ever since the update when unlocking the screen Display Brightness goes to 0 if i have adaptive brightness on.
anyone else having the issue? so far only solution is to turn that feature off

jasonx3 said:
Worked Perfectly fine on Oreo but ever since the update when unlocking the screen Display Brightness goes to 0 if i have adaptive brightness on.
anyone else having the issue? so far only solution is to turn that feature off
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Click to collapse
+1

You will have to keep the feature on and keep on correcting brightness when it's too low, until the system finally understands your preferences
It took me almost 2 full days constantly playing with brightness slider, but now it's all good :good:
Seems that brightness artificial inteligence is a bit lazy....

Mellow971 said:
You will have to keep the feature on and keep on correcting brightness when it's too low, until the system finally understands your preferences
It took me almost 2 full days constantly playing with brightness slider, but now it's all good :good:
Seems that brightness artificial inteligence is a bit lazy....
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Click to collapse
really? that's a lot of work for someone who unlocks the screen too often. i prefer older auto brightness where you set a base amount and forget it.

jasonx3 said:
really? that's a lot of work for someone who unlocks the screen too often. i prefer older auto brightness where you set a base amount and forget it.
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Click to collapse
I agree with you, I think that the learning is a bit long and I don't understand the need to always go back to zero (it's painful)
But I must admit that once the system is calibrated, it is more efficient than the older one
This is because it is based not only on the ambient light, but also on your personal preferences.
Give it a try, If you unlock your phone very often it should take less time...

Pixel ambient services

I did not have this problem at all after updating to Pie. I never had to manually readjust.
Maybe try to train you light sensor by placing it under bright light (it should then be on the highest brightness) and afterwards in complete darkness (brightness should be lowest now).
After having witnessed very bright light and complete darkness, the sensor should already have it's baselines and should actually switch accordingly.
However if you for any reason still don't like the low brightness in dark rooms you would obviously do that manually.