Question Is black completely black(pixel off) in A52s OLED display? - Samsung Galaxy A52s 5G

I can see the very dim light from the screen while viewing a black image in fullscreen in the dark room. My older phone's (Galaxy J2 Pro) screen turns completely off while viewing the same image. Is this normal? Does anyone have this issue?

Rutvik said:
I can see the very dim light from the screen while viewing a black image in fullscreen in the dark room. My older phone's (Galaxy J2 Pro) screen turns completely off while viewing the same image. Is this normal? Does anyone have this issue?
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Can you try in the settings in screen the natural setting?

BlueChris said:
Can you try in the settings in screen the natural setting?
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After some testing, AOD (AlwaysOnDisplay) has a pure black display (pixels off) in natural/vivid mode and 60/120 Hz refresh rate.
With 60 Hz refresh rate in natural/vivid mode, the display is not pure black, but at 120 Hz natural/vivid it is much darker than 60 Hz and hardly visible.

So as it seems no matter the setting it doesn't switch off the pixels.
Thanks mate for the info, i disabled AOD and i hope Samsung will fix it.

Rutvik said:
After some testing, AOD (AlwaysOnDisplay) has a pure black display (pixels off) in natural/vivid mode and 60/120 Hz refresh rate.
With 60 Hz refresh rate in natural/vivid mode, the display is not pure black, but at 120 Hz natural/vivid it is much darker than 60 Hz and hardly visible.
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I tried the same on a pure black wallpaper and I can't reproduce the issue you are talking about. Everything seems normal on my device.

Related

[Q] Samsung Focus: Hack to Disable Screen Dim on all White Screens (like Email)

Is there currently a hack, custom ROM, or other way to prevent the screen from dimming way down when on screens with lots of white (like the email/Outlook screen). Even when I have brightness set to "HIGH" and Auto to "OFF", all the other screens are really bright. But when I go to the email screen (or any other app that has a white background), the Focus automatically dims it way down. I'm sure this is to save battery or eye-strain on white screens, but I'd like it to be much brighter if possible.
Thanks!
Yeah, It's look hard but I want it on my HD7 too.
because the auto-brightness on WP7 was not smart so much compare to the other.
It's not give the lowest brightness when enter into the dark room (that's hurt my eye) and not bright enough when enter into the sunlight.
Nope. It's programmed into the pentile display driver. Total deal-breaker for me.
Perlnx said:
Yeah, It's look hard but I want it on my HD7 too.
because the auto-brightness on WP7 was not smart so much compare to the other.
It's not give the lowest brightness when enter into the dark room (that's hurt my eye) and not bright enough when enter into the sunlight.
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The auto-brightness setting in WP7 adjusts a screen's brightness based only on the ambient light sensor. The Focus and Omnia 7 dim their screen if they're displaying a majority of white pixels, even with auto-brightness off and set to high.
Switch to the white theme. It happens so frequetly now that I don't even register it!
OK, so that's not a solution but give it a go, it bugged the hell out of me at the start but now ive forgotten it even does it.
I understand why they've done it, but really it should follow the brightness setting if they're worked about battery life.
Sent from my OMNIA7 using Board Express

green/red tint on lower brightness

My pixel 2XL changes color temp on brightness level between reddish tint and greenish tint at lower brightness. Very apparent when adaptive brightness changes brightness in a dark room.
Look at the last 2 swipes at the end when it's clear the transition between color temperature changes around 25%.
Not very clear on YouTube video but it's apparent on my recording and viewing straight on.
Anyone have this issue?
wkJason said:
My pixel 2XL changes color temp on brightness level between reddish tint and greenish tint at lower brightness. Very apparent when adaptive brightness changes brightness in a dark room.
Look at the last 2 swipes at the end when it's clear the transition between color temperature changes around 25%.
Not very clear on YouTube video but it's apparent on my recording and viewing straight on.
Anyone have this issue?
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Yeah mine does the same, the adaptive brightness is shocking. I am hoping that there will be a fix for this coming ASAP as i am running out of days before I can return it.

How to turn off adaptive display? White balance and RGB settings not working?

Does anyone know how to turn off the s20's adaptive display feature? (I'm not asking about adaptive brightness.) I'm on a US snapdragon, unlocked, regular S20. Thanks!
I am referring to:
"Samsung's adaptive super AMOLED screen optimizes the color range, saturation, and sharpness of the picture depending on what you're watching or doing."
https://www.samsung.com/us/support/answer/ANS00063051/
The vivid/natural, white balance, and advanced RGB settings mentioned in that link do NOT seem to impact the adaptive display feature. (And in fact, white balance and RGB settings don't seem to do anything at all... If anyone has thoughts about why THAT is, or how to make them actually have an effect, I'm interested.)
I have tried turning off dark mode completely, turning off the video enhancer, and turning off the dark mode on wallpaper, but the problem persists and impacts things like apps and pages in Chrome - basically everything.
If I look at my task switcher, app screens will often look the way I want them to in the preview, but when I click on one, after about a second the display adjusts and changes the image to something brighter, whiter, and less what I want. This is true whether adaptive brightness is on OR off.
I'm trying to use a screen filter to manually set the screen to the settings I need, and it feels like the screen is fighting the filter and countering it, and I think this business with the adaptive display optimizing color and saturation could be the problem. Or if you have other ideas for the source of the problem, I want to hear them.
Any help is appreciated!
Erre én is k
dovesong said:
Does anyone know how to turn off the s20's adaptive display feature? (I'm not asking about adaptive brightness.) I'm on a US snapdragon, unlocked, regular S20. Thanks!
I am referring to:
"Samsung's adaptive super AMOLED screen optimizes the color range, saturation, and sharpness of the picture depending on what you're watching or doing."
https://www.samsung.com/us/support/answer/ANS00063051/
The vivid/natural, white balance, and advanced RGB settings mentioned in that link do NOT seem to impact the adaptive display feature. (And in fact, white balance and RGB settings don't seem to do anything at all... If anyone has thoughts about why THAT is, or how to make them actually have an effect, I'm interested.)
I have tried turning off dark mode completely, turning off the video enhancer, and turning off the dark mode on wallpaper, but the problem persists and impacts things like apps and pages in Chrome - basically everything.
If I look at my task switcher, app screens will often look the way I want them to in the preview, but when I click on one, after about a second the display adjusts and changes the image to something brighter, whiter, and less what I want. This is true whether adaptive brightness is on OR off.
I'm trying to use a screen filter to manually set the screen to the settings I need, and it feels like the screen is fighting the filter and countering it, and I think this business with the adaptive display optimizing color and saturation could be the problem. Or if you have other ideas for the source of the problem, I want to hear them.
Any help is appreciated!
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they removed the option to close adaptive display since Note 9 starting from s10 it is always on and can't be disabled
They removed the option to close adaptive display since Note 9 starting from s10 it is always on and can't be disabled
It was something like attached picture on Note 9
Ah hah! I think I figured out a solution to my problem (which was that the whites were too blue and bright and vivid as compared to everything else on the screen, no matter what settings I used on Twilight or another screen filtering app). For anyone who comes after me with a similar issue: the native blue light filter doesn't JUST turn on/off - it has an opacity setting which you can find and adjust by clicking on "blue light filter" in your display settings menu, to the left of the on/off toggle switch. Turning it all the way up (to the right) tones down the whites and blues without impacting the rest of the colors on the screen, which for me at least creates a much better color display ratio.

Question Findings on the Pixel 6 Pro's "10–120 Hz" Variable Refresh Rate - (yes, 10 Hz works)

https://www.reddit.com/r/GooglePixel/comments/rn5wrp
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Summary
Pixel 6 Pro goes down to 10 Hz as expected when idle in normal lighting
In low ambient light & low brightness for darker content, refresh rate only goes down to 60 Hz
Pixel 6 Pro PWM frequency is 360 Hz, lowering down to 120 Hz at <20% system brightness
AOD goes down to 10 Hz as expected
Battery Saver/Smooth Display disabled does not go down to 10 Hz, stays at 60 Hz
Watching 24fps/30fps movies/videos does not lower refresh rate down to 24/30 Hz, stays at 60 Hz
The important bits
Some people have (mistakenly) used Android's refresh rate indicator within the Developer Options to come to the conclusion that the 6 Pro's variable refresh rate only goes down to 60 Hz, because that's what the indicator shows when the screen is idle. However, Android's refresh rate indicator does not show the OLED panel's lowest operating refresh rate, due in part by how its VRR is implemented. The Pixel 6 Pro's Samsung Display panel has a variable refresh rate mechanism that operates at a much lower level, within the display driver, and not exposed to the Android user-space.
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Samsung's VRR implementation is not the same as those found in typical gaming monitors which can target any arbitrary refresh rate. The VRR found in Samsung's HOP ("LTPO") panels still work by switching between discrete refresh rate modes, like older implementations, but the new panels now incorporate a low frequency drive (LFD) mechanism which operates the OLED driving rate at a fraction of the current refresh rate mode. As an example, a 10 Hz driving refresh rate is achievable by operating the panel at 60 Hz but skipping re-drives for 5 out of every 6 refresh intervals if the frames are the same.
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And from (#1), we finally find some solid proof that there is a 10 Hz fundamental driving frequency in the Pixel 6 Pro display when screen content is idle, despite the Android refresh rate indicator reporting 60 Hz.
Along with it, we find two other fundamental frequencies at 120 Hz and 360 Hz. The peak at 360 Hz is almost certainly the PWM frequency, and 120 Hz is the fundamental refresh frequency from which the 10 Hz LFD is employed from.
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I also tested if the Always-On Display went down to 10 Hz (#5), and I can confirm that it does. It's driven at a 120 Hz PWM freq. and a 60 Hz fundamental refresh, employing LFD down to 10 Hz.
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Question Screen flickering

After flashing pixel os and changed the settings for colors to boosted ...it seems a little screen flickering is there...only visible in black background...feels black and green...idk what is this
Disable smooth display and see if it stops.
Beackman said:
Disable smooth display and see if it stops.
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I think it stopped.... thanks a lot
Just to clarify, this options is about the change of refresh rate of screen, It flickers when change from 60hz to 90hz and 90hz to 60hz, on miui the hz is fixed, thats why this not happen on miui.
Beackman said:
Just to clarify, this options is about the change of refresh rate of screen, It flickers when change from 60hz to 90hz and 90hz to 60hz, on miui the hz is fixed, thats why this not happen on miui.
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Yeah i should have guessed that earlier...in pixel os rom there is no option to select specific hz...i think it's now running on 90hz....and there's also no traffic indicator in this rom...

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