[Q] Auto brightness doesn't work - Xperia Z3 Compact Q&A, Help & Troubleshooting

Hi
The "Adapt to lighting conditions" is checked, but it doesn't really adapt. I have to manually change the slider to adjust brightness.
Looks like a bug. Not sure if there are any other settings to make.
Is this a known issue? Any workarounds?
Thanks.
Farhad.

The slider sets the maximum brightness of the screen, not the minimum. Hence, in order for the auto adjust to work, set it to the max and tick the check-box.

sxtester said:
The slider sets the maximum brightness of the screen, not the minimum. Hence, in order for the auto adjust to work, set it to the max and tick the check-box.
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Source?

sxtester said:
The slider sets the maximum brightness of the screen, not the minimum. Hence, in order for the auto adjust to work, set it to the max and tick the check-box.
Click to expand...
Click to collapse
seems to work more like a brightness scale kind of thing. not only sets max, but minimum as well.
it'll always adjust when the box is ticked, but the slider determines how bright or dark biased it is.

It's a sliding window of brightness ranges, which should be good news to anyone who's felt that autobrightness on other phones swings too far in either direction. Now you can customize to your own taste.
Personally the sweet spot for me with good compromise between use in low light indoors, daylight and office lights is about 25% - the slider button just above the second "g" in "lighting conditions"
Remember though that changing White Balance settings will darken the display, and you'll need to boost brightness to get decent contrast again.

Use Lux Lite from the playstore. It lets you individually "link" a specific brightness level to a specific lighting condition, which the app then remembers and automates.

phositadc said:
Source?
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What do you mean "Source"?
That's how it work[s|ed] on my Xperia U, Xperia M, Xperia SP and now on Xperia Z3C.
Not proof enough?

It works, but doesn't work well. When I wake up at night the brightness level goes lower but not nearly low enough. I have to manually reduce the brightness to the lowest level. When the day starts, I have to manually increase the brightness. Not ideal, not a deal breaker either. Hopefully Sony addresses in the next update.

garment69 said:
It works, but doesn't work well. When I wake up at night the brightness level goes lower but not nearly low enough. I have to manually reduce the brightness to the lowest level. When the day starts, I have to manually increase the brightness. Not ideal, not a deal breaker either. Hopefully Sony addresses in the next update.
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Totally agree, Im using lux to improve the brightess auto adjust....

Related

Lowering lowest display brightness setting

Is there any way to make set display's brightness level lower than slider in settings allows?
Why?
1) SGS's display got so much brightness and contrast that in low (or zero) light conditions it is simply too bright! It hurts eyes.
2) It might severely improve battery life.
Any gurus around? ^^
echo # > /sys/devices/platform/s3cfb/spi_gpio.3/spi3.0/backlight/s5p_bl/brightness
brightness to 0
If i remember, real mini is 8, max 255, i use Brightness level from Curvefish ( Market ), it seems to be the lowest i can get, an it's a 1X1 widget, not that horrible.
Dimmer Night mode , Market too, is another way to go.
Twice are free.
Thanks, working as intended
The best solution would be to allow 'auto' setting to go that low.
tristecire said:
If i remember, real mini is 8, max 255, i use Brightness level from Curvefish ( Market ), it seems to be the lowest i can get, an it's a 1X1 widget, not that horrible.
Dimmer Night mode , Market too, is another way to go.
Twice are free.
Click to expand...
Click to collapse
Yup even quick settings (free) from market allows to go uptil 18.
i use Dimmer. brightness is 10.
I use extended controls and it has multiple options to control brightness or switch between user and auto brightness settings. Not sure it goes lower than stock but i tested it today and i can get 7 hours of almost nonstop use out of a full battery. Thats a mix between navigation internet and calls. Thats good enouh for me.
Sent from my GT-I9000 using XDA App
fua said:
i use Dimmer. brightness is 10.
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From 1 to 17 theres no difference in brightness. 0 is screen off, 18 is lowest brightness,.... and so on up to 255.

[Q] screen backlight perameters.

I use my Z3C at night quite often and find that the backlighting is too bright even turned all the way down. The adaptive lighting option does not bring it bright enough durring daylight use if left un the low setting. Is there any way to adjust the backlight other than a 3rd party app?
Sent from my D5803 using XDA Free mobile app
Do you mean other than the brightness slider?
Install lux and set it to adjust brightness automatically depending on ambiant light.
Set it to -10 or 5% with 1 lux and 100% with 100. Etc. It take time to adjust it but will save your eyes and battery.
Donation isn't necessary but bring some good options.
Works like default adaptive brightness but with more steps (if you desire), darker or lighter...
Mazzeru said:
Install lux and set it to adjust brightness automatically depending on ambiant light.
Set it to -10 or 5% with 1 lux and 100% with 100. Etc. It take time to adjust it but will save your eyes and battery.
Donation isn't necessary but bring some good options.
Works like default adaptive brightness but with more steps (if you desire), darker or lighter...
Click to expand...
Click to collapse
Thanks man, will look into that! using Twilight now, it is waaaay to complicated for what i want.
Sent from my D5803 using XDA Free mobile app
After a few days with Lux, it is much better. It allows the screen to dim and brighten way past stock settings. I really like the night filter mode. When i am outside and check my phone i am no longer getting blasted by a spotlight bright screen!

Is auto brightness working good ?

I seach many threads but in my case it works but I have a probleme for having the REAL auto brightness with my Z3C.
I mean... If I disable the auto brightness in display settings an put the maximum brigtness it's very high, and when I check the auto brightness and put the brightness (notification bar) to maximum and switch between auto and not auto... YES there is a difference, the auto mode is less bright, so yes the auto brightness option works because i see a difference... I gess
BUT... at night when the room is COMPLETLY dark (yes because I sleep in the dark lol) the brightness is very bright for me, too bright. And I go to the notification bar and put it at less... but wait! This not my definition of "auto brightness" if I have to manage it. For me (maybe I'm weird, tell me) if auto brightness is enabled, when the light sensor see a COMPLETE DARK room the brightness should be at minimum, am I right???
And, with all my previous smartphones, the auto mode was with the brightness bar in notifications bar and if I check the auto mode, the brightness setting bar is desabled... and if I setup the brighness bar, the auto brightness check is disabled... etc
So why my Z3C haven't an real auto brightness? Why can I enable the option in settings but set the brightness bar too? Why in a complete dark the brightness is too high and not at minimum? Because in the morning in the dark if I set it at minimum, later I have to set it more bright because it's too low at the day ligh... BUT I'M IN AUTO MODE IN THE DISPLAY SETTINGS!!!
It's like I have the auto mode and the right to set the brightness too... not logic! If I check the auto mode it's because I don't want to setup brighness bet the device must do it for me like my others phones...
Is it normal?
Thank you for help...
Its normal, auto brightness on the Z3 has a very narrow range of auto adjustment. So exactly like you are saying its either too bright at night or too dark in bright light. Do yourself a favor and use the app LUX, I think there is a free version to try. My auto brightness now works as it should, bright enough to read in sunlight and dim at night so I'm not blinded. You can tweak the values for every type of.light you are in, works great.
Do you have Lollipop on your phone?
Do you know that in Lollipop there is no Auto-Brightness anymore, there's "Adaptive Brightness", and it scales less, which explains your experience (and you're not the only one)?
Jack_R1 said:
Do you have Lollipop on your phone?
Do you know that in Lollipop there is no Auto-Brightness anymore, there's "Adaptive Brightness", and it scales less, which explains your experience (and you're not the only one)?
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It's was called something with "adaptive" in Kitkat, too.
You can just set the slider to the minimum, then it won't be too bright in the dark and it'll get bright enough in sunlight...

App that uses brightness toggles?

Hi,
Not sure where the correct place is for this, so thought that I'd put it here.
I am looking for an app that controls brightness. I like the brightness of my phones to be dialed down to around 40%. I find it most comfortable for my eyes. Yet when it is bright out, I need to make the screen brighter. This means that I need to go in and manually adjust the brightness. I don't like to have the phone set to automatically adjust the brightness.
I'd like to find an app that allows adjusting brightness by icon. I don't want one that has one icon that toggles through a bunch of preset brightness levels. Instead, I want an app that can have different icons for different brightness levels. That way, if I wanted to toggle the brightness to 60%, I could tap an icon that does that. Then I could have an icon set for 30% to set it back.
Anyone know of an app that does this?
usmaak said:
Hi,
Not sure where the correct place is for this, so thought that I'd put it here.
I am looking for an app that controls brightness. I like the brightness of my phones to be dialed down to around 40%. I find it most comfortable for my eyes. Yet when it is bright out, I need to make the screen brighter. This means that I need to go in and manually adjust the brightness. I don't like to have the phone set to automatically adjust the brightness.
I'd like to find an app that allows adjusting brightness by icon. I don't want one that has one icon that toggles through a bunch of preset brightness levels. Instead, I want an app that can have different icons for different brightness levels. That way, if I wanted to toggle the brightness to 60%, I could tap an icon that does that. Then I could have an icon set for 30% to set it back.
Anyone know of an app that does this?
Click to expand...
Click to collapse
Lux, if properly configured, could do that for you.
I think I understand what you're going for. I use Power Toggles (Dev: Painless Apps), and one of the toggles on the widget is for brightness and I have it set to 3 settings when I touch it; 20%, 40% and 100%. It's not possible to set each new brightness widget for individual brightness presets, unfortunately, but I don't see how it would be difficult to just make some predetermined settings for your brightness.
By now you should have a pretty firm idea on what level of brightness you prefer throughout your day so maybe you can use this app and have 2, 3 or more presets. It's really simple to use, I have it set to 3 settings and touching the widget to get to the brightness I want at that moment is super quick and not difficult at all.
You can see in the screenshot I use the widget at the top on my home page. Brightness is among the other toggles I use on a regular basis. Much quicker to turn on and off things, IMO. It's right there on my home screen so I don't have to pull my notification window down. I hope this helps.
I just use Auto Brightness setting. I set the brightness slider at 40% and the phone will auto-adjust the screen to keep it at a relative 40 indoors and outdoors.
I think this is what you're looking for:
https://play.google.com/store/apps/details?id=com.ss.moreshortcuts

Any way to reduce minimum brightness?

Little background: somewhere in kernel code or some other core module of the operation system manufacturers or ROM creators set minimum brightness value for the device. This value was in some of my other devices called min_brightness. I remember faintly that I was able to set the value by running some script in Init.d. Unfortunately I did it several years ago for my other device and cannot remember the details.
The minimum brightness in Colt OS is 31 and seems to be similar other roms, which I tried.
Another option to set the value is Xposed module called Minimum Brightness. Unfortunately it has zero effect on my device. forum.xda-developers.com/xposed/modules/mod-minimum-brightness-t2993161/amp/
Another option is to use app called Brightness Tweak, which does its job somewhat but the result is not exactly desirable. The problem is that it makes the brightness curve not smooth and setting semi-bright values is impossible. It is however able to set the value to 1. https://forum.xda-developers.com/android/apps-games/app-brightness-tweak-t3339579
By the way, I find screen filter apps in adequate because they reduce contrast and add complexity to setting the brightness. Setting minimum brightness affects swipe status bar and brightness sliders as well as auto brightness functionalities. In addition MX Player.
wwwwe said:
Little background: somewhere in kernel code or some other core module of the operation system manufacturers or ROM creators set minimum brightness value for the device. This value was in some of my other devices called min_brightness. I remember faintly that I was able to set the value by running some script in Init.d. Unfortunately I did it several years ago for my other device and cannot remember the details.
The minimum brightness in Colt OS is 31 and seems to be similar other roms, which I tried.
Another option to set the value is Xposed module called Minimum Brightness. Unfortunately it has zero effect on my device. forum.xda-developers.com/xposed/modules/mod-minimum-brightness-t2993161/amp/
Another option is to use app called Brightness Tweak, which does its job somewhat but the result is not exactly desirable. The problem is that it makes the brightness curve not smooth and setting semi-bright values is impossible. It is however able to set the value to 1. https://forum.xda-developers.com/android/apps-games/app-brightness-tweak-t3339579
By the way, I find screen filter apps in adequate because they reduce contrast and add complexity to setting the brightness. Setting minimum brightness affects swipe status bar and brightness sliders as well as auto brightness functionalities. In addition MX Player.
Click to expand...
Click to collapse
Try to use "ScreenDim" app
Thanks for the suggestion. I tried the app, but in my opinion the brightness adjustment method is very convenient. The is no slider in notification or sliding status bar. Also the min brightness is not adjusted globally so other brightness adjustment method are unaffected.
Hi, @wwwwe did you actually solve the problem?
Partha Dip said:
Hi, @wwwwe did you actually solve the problem?
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Click to collapse
No I did not.
wwwwe said:
No I did not.
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Click to collapse
Have you tried light control app?
No + the phone is broken already. It wont keep charge anymore.

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