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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Increase brightness level without using backlight

I'm looking for a way to increase "software" level of brightness in Android without changing the "hardware" level, just like as if I was applying a brightness filter to an image ...
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1 vote
0 answers
24 views

Auto brightness turned off, but it's not

I have problem with auto brightness setting on my android smartphone. Auto brightness turned off in settings, however it still works via not changing the display brightness, but changing lighntess(or ...
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0 votes
1 answer
259 views

Lower the minimum brightness without third party apps

My default lowest brightness value is around 33. I can't go lower than that from the brightness slider. 33 is too bright for me. I want to take it even lower near 15. Although I can lower it to 15 by ...
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28 views

Dark mode brightness

Is there a way to switch dark/light mode depending on ambient brightness (like Pocket does)?
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1 answer
484 views

How can I disable the warning "Using high brightness for long periods increases battery consumption." so that I don't see it ever again?

I use Android 10 with Samsung Galaxy S9. Whenever I set the brightness to be high, I get the warning: Using high brightness for long periods increases battery consumption. How can I disable this ...
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11 views

Color temp changes depending on content

I have a OnePlus 6 and recently (past few months) I've noticed the color temp changing between a "warm" white and a more "pure" (not the bluish "cool") white. You can't ...
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1 answer
1k views

Stop App from controlling the brightness of my screen

I was on a flight watching movies on the United App. Around 8pm my screen dimmed. It dimmed a lot, to the point of being unwatchable. Pulling the notification pane (where the brightness slider is ...
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181 views

Android prevent brightness from dropping below some percentage

I had the following situation. In my phone I might accidentally drop the brightness to 0. .When that happened I could not do anything. I had a hard time unlocking my lock-screen using a pin code. I ...
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3 votes
0 answers
531 views

How can I see which application is controlling the brightness?

How can I see which application is controlling the brightness?
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1 vote
1 answer
699 views

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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  • 454
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1 answer
2k 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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1 vote
1 answer
5k 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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3 votes
2 answers
8k 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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1 vote
0 answers
47 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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0 votes
1 answer
743 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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1 vote
2 answers
6k 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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1 vote
2 answers
2k 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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0 answers
2k 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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0 answers
87 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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1 answer
2k 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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0 votes
1 answer
895 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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0 votes
1 answer
99 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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0 votes
0 answers
948 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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1 answer
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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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1 vote
1 answer
3k 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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  • 437
1 vote
3 answers
7k 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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1 vote
1 answer
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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1 vote
1 answer
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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0 votes
2 answers
4k 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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7 votes
2 answers
3k 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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2 votes
2 answers
4k 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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-1 votes
1 answer
836 views

Android auto-dim on face down? [closed]

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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0 votes
1 answer
119 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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1 vote
1 answer
126 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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4 votes
1 answer
409 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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1 vote
0 answers
264 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. ...
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3 votes
1 answer
4k 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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1 vote
1 answer
6k 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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8 votes
4 answers
6k 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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  • 525
2 votes
1 answer
575 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 ...
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0 votes
1 answer
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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2 votes
0 answers
355 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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3 votes
3 answers
15k 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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1 vote
1 answer
11k 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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8 votes
4 answers
64k 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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4 votes
2 answers
10k 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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  • 525
0 votes
1 answer
375 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 ...
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  • 125
6 votes
3 answers
12k 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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0 votes
2 answers
1k views

night mode with reverse video?

I have seen apps that lower the brightness, but is there a way to get rid of all light colored backgrounds such as (selectively?) inverting the image colors? For instance, I have an app that only ...
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2 votes
2 answers
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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