Questions tagged [screen-brightness]

For questions pertaining to screen brightness, whether how to set, how to control or how it affects battery life.

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Lower ROM minimum brightness

On my rooted stock ROM LG G2 D802 KK 4.4.2 minimum brightness is actually 50 (not 0) on a scale from 0 to 255. Here is my dumpsys power POWER MANAGER (dumpsys power) Settings and Configuration: ... ...
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1answer
2k views

Does using brightness dimmer (screen filter) really save battery?

We know that the lower the scree light/brightness, the lower the battery consumption. There are some applications which provide ability (without root) to lower the brightness beyond the (default) ...
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Brightness slider mapping incorrect

I am using rooted MIUI 10 custom ROM 8.1 on my Xiaomi Mi A1 and whenever I tried to change to brightness, slider on the notification bar won't work correctly. Slider only works roughly between %1 to %...
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2answers
3k views

Screen Distortion After Using Certain Chargers

My Nexus 5 has burned in a few times over the past year, which is very unusual since I never leave it on when not in use (30 second dim time), but today I finally noticed the trend. When I charge the ...
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2answers
2k views

How to lower the minimum brightness?

On my Moto Z Play on the stock 8.0 Oreo ROM (rooted, of course), I find that the lowest brightness setting is still a bit too bright for my liking. This is in contrast with my dad's Galaxy S8+ which ...
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Are there any shortcuts that could adjust the brightness unintentionally on a Huawei Nova 3i (Android 9)

I'm trying to assist an elderly person with poor eyesight with her phone. She has found that when the auto brightness setting is enabled, the screen is too dim for her to see. Without the auto ...
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1answer
1k views

Is there any way to reduce minimum brightness without root?

I want to reduce the minumum brightness of the screen of my Toshiba Excite Pro tablet. This is a tablet which (as far as I can tell) is essentially impossible to root, but I want to change the ...
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2answers
3k views

Can I prevent my S6 from reducing brightness at 5% battery?

My Samsung Galaxy S6 with Android 6.0.1 always dims the screen when hitting 5% remaining battery. This is very bad in bright sunlight because the screen gets so dark that it's impossible to use the ...
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1answer
51 views

Screen Brightness accidently set to dimmest (blank screen) Android-x86_64-8.1-r1

I installed Andriod-x86 on a tablet and was happy with the results untill I changed the screen brightness setting. It accidentally got set to zero brightness. Now the GUI is not obtained when android ...
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1answer
593 views

How to change the lowest and highest screen brightness in Android?

Is there any way to reduce the lowest and highest screen brightness settings by editing the build.prop file in Android? If yes, then how?
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1k views

Enable Samsung's “video enhancer” for arbitrary app

The Samsung S7, S8 and perhaps other phones have a "video enhancer" feature that can be turned on in the phone settings. This significantly improves visibility under strong lighting (outdoors) in ...
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37 views

Make screen brighter when phone is raised?

When raising my Google Pixel XL (latest Android Pie), without pressing anything, it already shows the clock, weather, battery percentage etc. -- that's nice. However, the screen at that point is also ...
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484 views

Error with screen brightness on Samsung Galaxy J7 prime

I have a Samsung galaxy J7 prime SM-G610M Duos with Android 7.0 operating system. I have noticed something curious with the phone, is that sometimes the full screen of the phone does a slight flicker. ...
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2answers
18k views

How can I disable auto-dimming of the screen?

What I'd like to see: When idling, the screen turns off after the configured amount of time. What I see: When I don't do anything, the screen dims a bit after ~23 seconds, then at 30 seconds it ...
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1answer
1k views

Something is filtering blue light and I can't figure out how to stop it

I just got a Samsung Galaxy S9 last week and since day 1 it has been applying a blue light filter even though I turned blue light filter off in the settings (Blue Light Filter turned off and also ...
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1answer
1k views

Reduce the screen brightness below given permissible level

Is it possible to reduce the screen brightness below given level? Well if possible does it really reduce the energy consumption.
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1answer
5k views

Why can't I adjust the brightness and the sleep time on my KitKat device?

Whenever I go to settings and to display, the brightness and the sleep buttons are faded out and I can't click them. I tried rebooting my phone and a factory reset but nothing works. I don't know what ...
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1answer
1k views

Unable to adjust brightness Lenovo Tab3

My brand new Lenovo Tab3 doesn't respond to screen brightness slider at all. Nor does the automatic adjustment work when ambient light changes. Any similar experiences or maybe solutions?
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629 views

How to adjust brightness on android tv

I have a TCL U55P6046 (EU version of the TCL 55P607). The EU version comes with android tv instead of Roku TV. I am trying to change the brightness on this tv but i can't seem to find it anywhere. I ...
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43 views

Turning on the flashlight does not keep the brightness

I wrote a command to turn on the flashlight echo 255 > sys/class/leds/flashlight/brightness The flashlight turns on but after a second it shines darker. Why?
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3answers
10k views

How does reducing brightness of screen increase battery life?

For all I have heard, reducing the screen brightness of your phone can increase your battery life. Just about every expert in the field agrees to this statement. But today I came across this article ...
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1answer
522 views

Turning off true black pixels (#000000) for LCD?

Is there a way to turn off black pixels on LCD screens, similar to how AMOLED devices turn off these pixels? I've tried those pixel-turn-off apps, but they turn off all pixels within a certain grid, ...
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2answers
3k views

Samsung Galaxy S7 Edge Gray Horizontal Bars on Screen

I recently purchased the Galaxy S& Edge, but as of yesterday I have been experiencing a strange problem with the screen. The screen is divided into sections, alternating between sections of normal ...
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1answer
74 views

Turning on screen, flickering.. with logcats

Flickering is only noticeable in 10/255 and above brightness, in 255 brightness the flickering is extreme and it only occurs in the bottom part of screen(almost the size of keyboard)... So whenever I ...
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627 views

How to edit /sys/ files properly without root?

I have android device with version 5.1.1 . The device is not rooted, but root can be accessed on /system or /data partition files from the custom TWRP recovery using adb. The device has SELINUX ...
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51 views

Why is my LG optimus brightness so low that i cant see the screen unless i shine a bright light on it?

It will randomly become bright and then the brightness will go so low that you cant see it without shining a bright light on it. Please help.
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1answer
1k views

Stop screen from dimming while on charger

How can I stop the screen from dimming when my phone is charging? (the same thing the screen does when it's about to turn off). Note that my screen already stays on, but it gets darker after an idle ...
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1answer
2k views

Why does brightness control not work in Oneplus 2 of CM13?

Fig. 1 max, Fig. 2 min of screen brightness where you see no difference Bug hypothesis in CM13 discussed with the authors here: no manual adjustment of brightness when the system auto-brightness ...
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1answer
1k views

How to decrease screen brightness without draining extra battery

I am currently using ZenFone 5 now with android OS 5.0. Even though I've set my brightness to the lowest but it is still too bright for me, and it's battery capacity is low too... so is there any ways ...
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3answers
12k views

Why does video screen get brighter and how to prevent it?

This happens on Nexus 7 2013 (Google stock 5.0.2) and also happens on Galaxy Note 12.2 tablet (Samsung stock 4.4.2). I am in a dark room. I have set the system brightness to the minimum (let us call ...
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4answers
42k views

How can I reduce screen brightness below the minimum without an app?

I have an Optimus Elite, and it has a minimum brightness setting. In certain apps, I can reduce the brightness below the safe minimum, but when I leave the app, the brightness is increased to the ...
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1answer
653 views

Android auto-dim on face down?

I'm looking for an Android app that will temporarily dim the screen (not turn it off!) when the phone is face down, and return it to my normal brightness setting when face up. Does such an app exist? ...
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2answers
33k views

Kindle screen suddenly became very dim on LG tablet running 4.2.2 Can't increase brightness

How can I increase brightness of Kindle screen on my LG tablet running 4.2.2? Screen suddenly became very dim. Thanks.
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2answers
2k views

No auto-brightness option in LG L90 dual

My L90 has no auto-brightness option. Could anyone please suggest a way to fix the issue?
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1answer
67 views

Screen angle and brightness [closed]

I experienced the same on some Android devices: when changing the angle the screen is looked at, I see that the image gets darker or brighter. I would like to know if it is so on all devices or just ...
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0answers
368 views

Brightness level stuck at minimum after upgrading to Android 5.1.1

I have Sony Xperia Z (C6603, 10.7.A.0.222) and the brightness level is stuck at minimum after update to 5.1.1. I have tried: sensor test - light sensor is OK. set brightness via ADB (settings put ...
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0answers
239 views

Brightness resets after reboot Lollipop 5.0.2 (happening since factory reset)

I have an LG OPTIMUS L90 running Lollipop 5.0.2 and every time I boot my brightness settings reset from 0% (how I had it before reboot) to random numbers, for example: sometimes 90%, 100%, 77% etc. ...
16
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2answers
6k views

Can I set the minimum brightness of auto-brightness?

I have a Samsung Galaxy S2 I9100 and I'm getting frustrated with how dark the screen goes. I do find value in using auto brightness but is it possible to limit the minimum or lowest point that the ...
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2answers
5k views

How to adjust brightness alternatively?

What if system brightness control does not work ? How to adjust brightness of android phone alternatively ? I am on HTC One X. I just noticed my phone's system brightness control is not working as I ...
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4answers
5k views

How to prevent brightness from going to full when the battery low popup appears?

Whenever the "battery low" popup appears in my tablet, the brightness goes to full. This makes no sense because the brightness should be decreased to the minimum instead of going to the maximum, as ...
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1answer
123 views

Lollipop Brightness too much

hey. I am on running on a mediatek device and today did an upgrade to Lollipop 5.1 through flashing Still exploring. But one of the things I've noticed is that the brightness level is too much. ...
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2answers
6k views

keep screen from dimming down when running certain app?

My 2.3.5 Android phone is set up to dim down the brightness after 30 seconds of inactivity, and shut off and lock the screen after another 30 seconds. After that, I need to unlock the screen to regain ...
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2answers
9k views

Adaptive brightness is not present in notification bar and altogether does not work

My Nexus 7 2013 has updated with OTA update to Android 5.0.1. The notification bar has changed. Now when I change brightness, there is no button for auto-adjustment. It currently looks like this: ...
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1answer
3k views

How to add screen filter with tasker?

After hours of searching in the internet I decided to ask this question here. How can I add a screen filter using tasker. Apps like Screen Filter, etc. creates an overlay black filter on screen which ...
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1answer
428 views

incorrect mapping from brightness slider to real system values

Sorry in advance for bad english and also for a noob question. I have a problem with brightness on my tablet Supra M94BG. There is a system brightness slider, the range is 0% -- 100% (as usual), and ...
9
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4answers
62k views

How to recover completely darkened screen on Moto G (Lollipop) due to setting brightness to zero?

I have Moto G on Lollipop, and I mistakenly set the brightness bar to zero. Now, the screen is completely darkened and I'm not able to see anything. How to set back the brightness to usable mode ...
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0answers
285 views

Way to remove fade animation when changing brightness? [Like iOS]

When changing brightness on all android devices I've tried, primarily a Nexus 10 running Rastapop, quickly sliding the brightness slider will result in a smooth fade from starting brightness to ending ...
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1answer
737 views

Screen brightness keeps switching to auto & timeout to 500min

My Samsung Galaxy Tab 2 7" (Android v4.1.1) has been having a bizarre problem since I installed (and uninstalled) Aldiko reader. It has been setting the Screen Timeout to 500min (which isn't even an ...
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1answer
9k views

Can I change the *maximum* brightness from a system file/apk?

My old Asus TF101 has a faulty backlight and cuts out if it goes above (roughly) 60%. Therefore, I am hunting for a way to change (lower) the maximum brightness that the tablet will reach - both in ...
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1answer
371 views

Moto G 2-gen - can I recalibrate automatic brightness mechanism?

Is there any way to recalibrate/reconfigure automatic brightness behavior? I would like to make it a little bit brighter in low light conditions. I'm using Moto G 2-gen with KitKat without root ...