Database Develop

Dimming the brightness even further?

I have the brightness set to zero, but I still find the screen too bright especially at night when the lights are off. Even at the lowest setting, the browser will light up the entire room and its very hard on the eyes. Is there a way to lower the brightness even further? Is there a hack available that will do this?

scrappyabs2 said:
I have the brightness set to zero, but I still find the screen too bright especially at night when the lights are off. Even at the lowest setting, the browser will light up the entire room and its very hard on the eyes. Is there a way to lower the brightness even further? Is there a hack available that will do this?
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You can wear sunglasses while looking at your phone at night.

supremeteam256 said:
You can wear sunglasses while looking at your phone at night.
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I wish that were true, but unfortunately I don't own prescription sunglasses.

you could hit the end button so the screen goes off

gridlock32404 said:
you could hit the end button so the screen goes off
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But then you can't see anything, that's almost as mental a suggestion as layering up 3 or 4 mirror screen protectors.

Instead of suggesting **** you could try to answer his question in a real way.
I think there is a way via setprop..
Try this in terminal (after su)
setprop settings.display.brightness 0

Sunsglasses sounds like a good idea.

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maxisma said:
Instead of suggesting **** you could try to answer his question in a real way.
I think there is a way via setprop..
Try this in terminal (after su)
setprop settings.display.brightness 0
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Thanks for chiming in with an actual suggestion. I tried changing the setprop setting to 0, but it didn't decrease my brightness any further than what I can achieve in the Settings menu. It's too bad, I wonder if an app could be made to force the phone's brightness to decrease even further.

You know what... I like this suggestion. I am one of the few people that sometimes uses the phone as an alarm clock and have it sitting next to my bed. I work nights but get off work at 5 in the morning. When I get home I sleep. It's nice to wake up and look at my phone without having to reach over and hit a tiny ass button just to check the time but keeping it on means that I have a night light shining while I'm trying to sleep. So I like this idea and would like to see it dimmed by at least another 50%.

Binary100100 said:
You know what... I like this suggestion. I am one of the few people that sometimes uses the phone as an alarm clock and have it sitting next to my bed. I work nights but get off work at 5 in the morning. When I get home I sleep. It's nice to wake up and look at my phone without having to reach over and hit a tiny ass button just to check the time but keeping it on means that I have a night light shining while I'm trying to sleep. So I like this idea and would like to see it dimmed by at least another 50%.
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I agree. I often grab my phone in the middle of the night to view new emails or google search random thoughts. My eyes get scorched though even when the brightness is turned all the way down.

I like the sunglasses idea!
how about putting on a darkened screen protector?

shaolinx said:
I like the sunglasses idea!
how about putting on a darkened screen protector?
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Do you have a link to one?

Me too.
I do alot of surfing in the middle of the night with the wife and baby in the bed and its pretty dam bright even when set to 0.
I run the brightness widget (not sure wich one) and I also use Timerific to auto dim to 0 after like 11m.
Sometimes I will see that the brightness is set to -8. Even though it doesnt seem any dimmer than normal, its jsut an observation.
I think that If we want to go dimmer its gonna take some sort of kernel hack.
I tried setting it with a - value and it didnt work, although none of the other set prop stuff worked either I think the apps i have set are blocking it somehow.
Ill mess around with a fresh rom and see if it will go into negative.
I also noticed that sometimes when its auto setting thebrightness levels it will go below what looks like 0 brightness for about a half second before it sets to 0 so I know its physically possible for the screen to go at least a little dimmer.

i know there was a way of getting it to -13 % by playing around with the settings on the brightness widget and useful switers..

Notification LED off center?

Just noticed the LED notification light on my wife's XZ1C is a bit off center.
It's noticeable when charging. It's supposed to be red light but I can also see small green light as well.
Anyone having the same issue?

Same here.

When it's charging is half red half green

It's a surface-mount Red-Green-Blue (RGB) LED.
All RGB LEDs are actually three separate LED chips stuffed into a single, surface-mount package. Each of those single-color chips (called a "die") is separate and the physical distance between each color depends on the manufacturer and model of any given LED package.
Essentially, in order to show a color that isn't pure red, green or blue, you have to light up more than one LED. If there is a large separation between each die, or you are close to the LED, then you will be able to see each color separately. If the distance between dies is smaller, or you are further away, you see the color that is formed from the mixing of those single die colors.
A decent example of that is here:
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Another way to deal with the "separate colors" issue is to use a heavily frosted cover on top of the LED package. That can work, but also significantly reduces the brightness of the LED, which means you have to use more power to light it. Using more power can then make the individual colors stand out more, requiring more frosting, etc. So there's a limit to what you can do there.
Using closer spacing means you end up with smaller LED chips, which have less area to dissipate heat, which means you have to use less power, which means they aren't as bright.
So it all comes down to a bunch of trade-offs.
TLDR: Step back from the phone a bit and what you'll see is orange: Red = 255 / Green = 128 / Blue = 0
http://www.color-hex.com/color/ff8000

pbarrette said:
It's a surface-mount Red-Green-Blue (RGB) LED.
All RGB LEDs are actually three separate LED chips stuffed into a single, surface-mount package. Each of those single-color chips (called a "die") is separate and the physical distance between each color depends on the manufacturer and model of any given LED package.
Essentially, in order to show a color that isn't pure red, green or blue, you have to light up more than one LED. If there is a large separation between each die, or you are close to the LED, then you will be able to see each color separately. If the distance between dies is smaller, or you are further away, you see the color that is formed from the mixing of those single die colors.
A decent example of that is here:
Another way to deal with the "separate colors" issue is to use a heavily frosted cover on top of the LED package. That can work, but also significantly reduces the brightness of the LED, which means you have to use more power to light it. Using more power can then make the individual colors stand out more, requiring more frosting, etc. So there's a limit to what you can do there.
Using closer spacing means you end up with smaller LED chips, which have less area to dissipate heat, which means you have to use less power, which means they aren't as bright.
So it all comes down to a bunch of trade-offs.
TLDR: Step back from the phone a bit and what you'll see is orange: Red = 255 / Green = 128 / Blue = 0
http://www.color-hex.com/color/ff8000
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thank you for all this explanation! love to know it! I always like to know how works stuff. :good: actually this LED doesn't bother me, even in distance I can see the line which both become different colors, but it's not a problem. The real problem for me is to see this light everytime that I've charged this phone. Why can't I just turn it off?

notification led stuck magenta

Something weird just occurred , I was using the shop Samsung website and whenever I pressed the back button to go back one page I noticed a blue dot blink in the middle of the screen. Didn't think much of it, but then was in the BBC app and similar red dot appears on the middle of the screen when opening a sub page withing the app.
I rebooted my device, now the led notification light is stuck on a magenta color, any ideas ?

Annoyingly sometimes the LED will blink blue if Samsung apps need updating

Do the LED test by dialling *#0*#

kradcliffe said:
Do the LED test by dialling *#0*#
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Seems to be working after a reboot. Was thinking maybe Samsung were employing some sort of low level fault indicator with the light being stuck on a certain color.

LED color?
Sorry for hijacking your thread, does anyone knows whether the LED has some sort of bug? I changed LED color in my Whatsapp but it always either not the color or its either blue or magenta.

blecap said:
Sorry for hijacking your thread, does anyone knows whether the LED has some sort of bug? I changed LED color in my Whatsapp but it always either not the color or its either blue or magenta.
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No worries. WhatsApp always did that for me.
Sent from my SM-N950U using Tapatalk

Is dark mode dangerous for the screen?

I've seen a youtube video where author says that dark mode in S9+ killed his phone screen.
He said that when you use app that is not affected by dark mode (stays white) and this app uses keyboard (black in dark mode) it causes screen fatigue when you open keyboard and than close it.
Of course it depends on usage but in his example (using this app few times a day) his screen died after two weeks or something like that.
Is it even possible?
If I understood him correctly it wasn't usual screen burn in.

whatever caused the screen to malfunction wasn't use of dark mode

raul6 said:
whatever caused the screen to malfunction wasn't use of dark mode
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It seemed WEIRD but I decided to ask. I've thought abut it like a light switch.
On bright screen when we turn on black keyboard it will make pixels black. Maybe doing this a lot could be harmful.
Well... I like dark mode so I might turn it on again someday
Thx

860lacov said:
It seemed WEIRD but I decided to ask. I've thought abut it like a light switch.
On bright screen when we turn on black keyboard it will make pixels black. Maybe doing this a lot could be harmful.
Well... I like dark mode so I might turn it on again someday
Thx
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its like saying that driving your car is bad for the car because when you were driving it failed.

Dark mode doesn't kill displays

freeza said:
Dark mode doesn't kill displays
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randomness of the QC does.

860lacov said:
It seemed WEIRD but I decided to ask. I've thought abut it like a light switch.
On bright screen when we turn on black keyboard it will make pixels black. Maybe doing this a lot could be harmful.
Well... I like dark mode so I might turn it on again someday
Thx
Click to expand...
Click to collapse
On Oled screens, the sections of the screen that are black are actually turned off completely. So so those pixels aren't even being powered.

I think that idea behind "problem" is :
When you have bright screen and you turn on keyboard with black elements than turn keyboard off it will work like power switch.
To be honest I choose to believe people from xda and assume that if I'm not unlucky than my screen is gonna be fine .
I feel that dark mode has got to much bright elements like icons . They should be grey or something

860lacov said:
I think that idea behind "problem" is :
When you have bright screen and you turn on keyboard with black elements than turn keyboard off it will work like power switch.
To be honest I choose to believe people from xda and assume that if I'm not unlucky than my screen is gonna be fine .
I feel that dark mode has got to much bright elements like icons . They should be grey or something
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What do you mean "it will work like power switch"? And please explain why "work like power switch" is bad for the screen.

Jammol said:
On Oled screens, the sections of the screen that are black are actually turned off completely. So so those pixels aren't even being powered.
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gruuvin said:
What do you mean "it will work like power switch"? And please explain why "work like power switch" is bad for the screen.
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Click to collapse
Imagine Light bulb.
When switch is on there is light. When off there is no light.
If I'm correct light bulbs burn when you turn on power . Not while emitting light.
I have no idea if this comparison is even near the truth but this is what came to my mind .

860lacov said:
Imagine Light bulb.
When switch is on there is light. When off there is no light.
If I'm correct light bulbs burn when you turn on power . Not while emitting light.
I have no idea if this comparison is even near the truth but this is what came to my mind .
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sounds logical to me.
let's see if an engineer can disprove it.
im not one but i know that incandescent bulbs and oled are pretty different. the burning filament part of a bulb has a high peak uppon power on and and just the nature of the "burning" makes it much more prown to burnouts. plus the AC current switching created by 50 or 60 hz must be a big part of why bulbs break more...just the strain of it switching polarity back and forth and there is no capacitor to smooth it out. Oled being part of a DC electronic device and natively consuming much less, has all sorts of controls and capacitors to smooth everything out and moreover, it is constant.. but id bet if there is some sort of app that could strobe between full max brightness and blackout real quickly, I'd presume failure faster than we might think.

LED works differently than light bulbs... if LED is near to dead... it won't produce the correct light colors which is nearly happens when there's a screen burn on any OLED screens... it will display colors differently
Correct me if I am wrong but that's how I see it

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Maybe some conclusion ??
Dark mode and normal mode are the same for the screen ?

Oleds are designed to turn off the pixels that are not neded, so no, using a dark theme wont damage the screen.
and the power switch theory is very far from beeng anything, everything you turn on works like a "power switch" and you dont see everything on fire
in the case of the phone, is best for the pixels to be off because they have a sort of fixed lifetime, you will extend that lifetime using them only when needed.

A friend of mine used their S8+ in light mode at 80% brightness and after 18 months the screen was badly burned in. There was a brown haze affect over the entire screen and the status and Navigation bars were heavily noticeable on videos.
Dark mode saves battery and is easier on the eyes. Samsung has done well at preventing burn in, whereas LG is still questionable.

LEDs are diodes. A diode is a pn junction (a one-way valve), which is also what you find in transistors. These things are designed to switch on and off thousands of times a second, and do so for years with zero issues. LED brightness can also be driven with pulse width modulation, switching hundreds of times a second, with a modulated duty cycle that varies the LED brightness. Also note that while you are watching a video on your phone, five million LEDs are getting their brightness modulated 30 times a second. These things are designed exactly for this stuff. Nobody on YouTube will convince me these OLED screens are damaged by normal use.
NORMAL USE.
That said, these screens get VERY bright, to accommodate infrequent use under full sunlight. But some people complain that they can't stand (or even read from) their phone if the brightness is any less than full blast. My wife has it this way even in a dark room, or worse, while DRIVING at night. It's ridiculous! Auto-brightness is the way to go. My Auto-brightness varies from about 10-50% in normal indoor lighting, and it's very comfortable on my eyes while saving battery. I've just finished my normal 16 hour, day and I'm have 79% charge left (seriously). I last took my phone off the charger 16 hours ago.
Download and run the OLED tools app to see how bright your Note9 can go. You have an enormous amount of brightness headroom that you should never need to use for very long.

Dark mode actually helps prolong the life of AMOLED/OLED displays. As pixels which display black are turned off, so only the pixels which display color on the display are active.

Screen issue

Hi i've noticed on my a71 screen a black spot on the top corner right of the screen when i turn the brightness low....this stuff happens on the grey backgrounds idk if it is a problem or not?

Ilyas1r said:
Hi i've noticed on my a71 screen a black spot on the top corner right of the screen when i turn the brightness low....this stuff happens on the grey backgrounds idk if it is a problem or not?
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I noticed sth like that in the top left corner. Not sure what that is but it's not visible all the time so I'll keep observing.

So sir you mean that is not a problem? Cz this thing doesn't happen all the time...only in the low light brightness.....so idk what should i do?

Ilyas1r said:
Hi i've noticed on my a71 screen a black spot on the top corner right of the screen when i turn the brightness low....this stuff happens on the grey backgrounds idk if it is a problem or not?
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i have same problem. like you said, this is happening at dark mode only and low brightness
especially, if background is grey color it is more obvious

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Ilyas1r said:
Hi i've noticed on my a71 screen a black spot on the top corner right of the screen when i turn the brightness low....this stuff happens on the grey backgrounds idk if it is a problem or not?
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Is it your problem like this? I've noticed it always in the right top corner, specially with the blue light filter on.
The interesting part is that if I get the brightness any higher it disappears.

Ilyas1r said:
So sir you mean that is not a problem? Cz this thing doesn't happen all the time...only in the low light brightness.....so idk what should i do?
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Well it's not a faulty pixel, the screen is not damaged or anything. You can try to use your warranty but in my country warranties don't work for such negligible and insignificant issues. Heck, in my country you try to use the warranty for a minor issue and Samsung service refuses the repair saying your phone was "pickled" with water while it never was.
I'm gonna keep it that way.

i dont think samsung uses dc dimming, so on a pwm screen it shouldn't have that kind of distortion. Sounds like a screen issue.

All A71 and S10 lite appear to have this defect. I already changed mine twice and both have the defect. I've seen cases where the device has been changed 3 times, and came with this defect every time. But it is a difficult problem to detect, so many people claim that their devices do not have this defect. The problem is usually only visible in some shades of dark gray, such as the image shown below. To check it is necessary to decrease the brightness to between 5% and 10%, go to a dark room and put this gray image in full screen.

My screen is just same as yours