Gamma video playback on sm-t805 - Galaxy Tab S Q&A, Help & Troubleshooting

Hi all,
Is there any way to adjust the gamma of the screen for this device? It's too low for video playback using any of the usual players. Screen brightness on full. Black's still crushed.
Rehue and vitalplayer allow software brightness increase but neither are very smooth and it's still not as good as the correct gamma.
I saw one post on here about editing mdnie but couldn't figure it out, also tried ironmaster rom with stweaks, which usually allows gamma correction , but not it seems with this device. The whole 'screen' tab is missing in stweaks.
Any clues anyone? It's frustrating, the screen looks superb for anything other than video playback.

Related

[Q] Screen Brightness

hi, i'm using HTC Desire HD with leedroid rom and kernel.
i read that to save more battery, i must turn down the screen brightness to a low level. but i want to use the auto brightness function but sometimes it isnt accurate to the environment(sorry for bad english). uhm any tweaks or mods that has customized auto brightness? thanks in advance guys
I found that the best thing to do is to do it manualy by using the brightness level app on the market which has a slider on it.
I use Tasker to set the screen brightness to levels defined by me in response to ambient light levels. Takes some experimentation to get it working right, but it's worth it.
Or then you can switch to CM7 as it has all screen adjustments built in the settings i.e automatic screen dimming level adjustments, different levels etc etc.

[Q] Brightness control in video players not working

Hi...my problem is asa stated in the title... i tried in 2 video players (KMP & MX video players)...when adjusting the brightness within the app, nothing happens...but brightness can be adjusted via the status bar...does anyone have an idea what is wrong?

Gamma video playback on sm-805

sorry for the double post!!!
Hi all,
Is there any way to adjust the gamma of the screen for this device? It's too low for video playback using any of the usual players. Screen brightness on full. Black's still crushed.
Rehue and vitalplayer allow software brightness increase but neither are very smooth and it's still not as good as the correct gamma.
I saw one post on here about editing mdnie but couldn't figure it out, also tried ironmaster rom with stweaks, which usually allows gamma correction , but not it seems with this device. The whole 'screen' tab is missing in stweaks.
Any clues anyone? It's frustrating, the screen looks superb for anything other than video playback.

Colour change at min brightness.

MY issue with the stock Rom, which has been bugging me for a while is that when I reduce the brightness to the minimum, the Contrast changes, or something of the sorts, this really annoys me and I would like to disable it. Can someone help me out? I really don't want to flash a custom ROM.
I think that's normal because of AMOLED display, I also noticed it on CM14.1
This is simply the way this particular screen works, can't be fixed with software.
You can only avoid it by not reducing brightness as much. According to "Lux" the color shift starts under 4% brightness.
Sent from my OnePlus 3 using Tapatalk
But why does the min brightness in mxplayer not have this issue?
Zeryth said:
But why does the min brightness in mxplayer not have this issue?
Click to expand...
Click to collapse
Because mx player doesn't set the brightness as low as you can set it manually using the brightness slider.
Select menu - display - settings - screen - untick "brightness". Now you can set your brightness manually to even lower using the brightness slider.
Other apps seem to work similarly (for example an third party brightness widget)... Not setting it to minimum... Like they don't recognize the "real" minimum brightness - which is lower. I don't have this "issue" on my tablet. Haven't looked much into it though.

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!
Click to expand...
Click to collapse
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.

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