[Q] Anyway to adjust the contrast (black level) on the Gtab - G Tablet Q&A, Help & Troubleshooting

I was wondering if there was a way to adjust black level (contrast) on the g tab? There only seems to be brightness in settings. The blacks are a little washed out looking espcially since I went to a gingerbread. Any way we can manually set this up or is it something hardset in a driver? If there is acccess to RGB settings that would be a bonus. It would be nice to color calibrate the tablet for photo display.
thanks

Wondering the same
It looks like you cant put it brighter than the max it comes with

Related

Color temp changing in browser

Is it normal that my color temperature seems to be changing when I'm in the browser. I notice it the most in there due to the white background. I'm running serendipity 8 but noticed before this. I'm not running the dynamic screen mode. Only the standard. Is this related to the auto brightness? Haven't tried disabling it yet but this color change is quite annoying as it goes from like cool to warm colors.
nh5 said:
Is it normal that my color temperature seems to be changing when I'm in the browser. I notice it the most in there due to the white background. I'm running serendipity 8 but noticed before this. I'm not running the dynamic screen mode. Only the standard. Is this related to the auto brightness? Haven't tried disabling it yet but this color change is quite annoying as it goes from like cool to warm colors.
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I'm getting the same on stock rooted. I think it's related to auto-dim because it's at 15 seconds, which is what my auto-dim is set to. Did you time it and verify the same for yours? Not sure why it doesn't just dim like past models, but goes to gross 1970's TV looking color haha
I believe you can adjust browser brightness aside from you regular screen brightness. When you bring up the browser again, look under setting and you will see "browser brightness"...let me know if that helps.
kezell said:
I believe you can adjust browser brightness aside from you regular screen brightness. When you bring up the browser again, look under setting and you will see "browser brightness"...let me know if that helps.
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The browser auto brightness toggle is jenky... when set to auto its when it kicks to low brightness the colors go warm yellow. If set to manual just above that point it disables the rest of the OS's auto dimness and the whole android is too bright dohh.
Color Temp of Browser
Is this just in your browser or does it show up on all white backgrounds? I thought my screen was defective because it would change color temperature with the backlight but the real culprit was that setting under Settings | Display which automatically checks the image being displayed and adjusts it to save battery power... I don't have the phone with me right now so I can't give the exact wording of the option, sorry.
toyfreak said:
Is this just in your browser or does it show up on all white backgrounds? I thought my screen was defective because it would change color temperature with the backlight but the real culprit was that setting under Settings | Display which automatically checks the image being displayed and adjusts it to save battery power... I don't have the phone with me right now so I can't give the exact wording of the option, sorry.
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Seems most noticeable in the browser because it is the only thing with a white background.
I see this problem mainly using the xda app... I will scroll and as I'm holding down on the screen, it will be sliiiiiightly pinkish... then as soon as I let go and the screen is static, it reverts to a cool blue... very slight

[Q] TFP Screen settings

Hi Everyone..
Is there any way or an app by which we can adjust not only the Brightness and contrast, but also saturation, gamma correction and adjust the color balance of the TFP screen?
I browsed a bit but could not find any!
Thanks!
I don't think there's any app out like that. It may be possible after rooting. I think Asus doesn't allow that because most wouldn't really know what their doing and mess the whole display up..lol.
If i come across something like that ill let you know.

[Q] brightness option

is there way how to lower my screen brightness level lower then stock? I want lower my screen brightness because I use my fone in dark a lot and my eyes get tired really fast. So I am looking for any mod or application which is capable of something like that.
screen filter

Display settings

Do you use adaptive display. Standard. Movie. Dynamic. Etc. What and why?
Also do you use auto adjust screen tone?
I disable the auto adjust screen tone and in check adaptive display and put it on standard.
Sent from my SCH-I545 using Tapatalk 2
I use Pro Photo.
I think the auto adjust is there to help with battery as OLED displays are less efficient with whites and bright colors and high brightness levels. Pictures and videos need less brightness to look good as opposed to text on solid background. Auto adjust takes all these factors into effect and balances brightness levels and screen tones to decrees battery use. (I may be wrong on how auto adjust works though)
Movie gives the most accurate colors. (if the S4 is like the note 2, disabling auto adjust as well, provides the most accurate colors overall)
Pro Photo is almost a perfect match to Adobe RGB.
Here is an article about the S4 display and the different modes.
Movie may be more accurate but I found the colors to be rather bland and washed out (compared to an iPhone 4S and HTC Rezound). I use Professional photo because it has the same white point (same whites) as Movie but with poppier colors. It really brings out the best of both worlds on this phone imo. And no auto adjust, but I do use auto brightness.

Dark scenes difficult too see in movies

I have a Samsung Galaxy Tab S3 and it's great but I can't figure one thing out. Which is the screens contrast. Dark scenes in Netflix or VLC player are too dark and hard to see. I tried different brightness settings, with/without blue light filter and the other color correction option for cinematic mode but nothing really works properly.
Is this an issue with the tablet or is there another setting to change the contrast or something?
man_with_hair said:
I have a Samsung Galaxy Tab S3 and it's great but I can't figure one thing out. Which is the screens contrast. Dark scenes in Netflix or VLC player are too dark and hard to see. I tried different brightness settings, with/without blue light filter and the other color correction option for cinematic mode but nothing really works properly.
Is this an issue with the tablet or is there another setting to change the contrast or something?
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I also noticed this with Netflix. Was hoping that turning up the brightness would help but it doesn't.
YES, YES, YES, I am shocked this isn't widely reported, I couldn't find almost anything about it and I've been searching for quite a while.
First of all it is really crazy that popular apps like plex or netflix don't offer any capability to change the brightness of the video played. No, we don't change the colorspace, black levels, bla bla bla.
I DID find eventually a solution (the ONLY one that works, a bit clumsy as it is): http://phandroid.com/2016/03/22/twilight-app-reduces-dark-contrast-on-samsung-galaxy-s7/ (yes, it's for the S7 and yes I did notice there the same issue, which makes it even crazier that it isn't something widely known and fixed).
I just picked up an S3 last night and I'm having this same issue. I watched the opening scene of The Defenders on Netflix, and I could hardly tell what was going on. Rewatched it on a proper display, and you're clearly upposed to tell it's Danny Randy much earlier in the scene, but I had no idea in the S3 until a blue light was clearly shining on him from above.
I used Twilight on my Nexus 7 because it lacked a night vision mode, ala blue light filter on the S3. I'm not sure how that can really help. Surely other people have found more elegant solutions to this problem? I've opened up other media files and they're all simply too dark. I get it's an HDR screen, but surely it has a mode for non-HDR content!
Do oled display have a blue light problem, I though it was only really a led thing.
John.
Might be an inconsistency with the displays. I have no problem with mine. Not getting any lag either but running a heavy debloated rom also. Battery life could be better. It's stupid you can't turn off the Wacom digitizer when s pen not in use. On my note 4 when I lost my s pen battery life was terrible because the Wacom digitizer stayed on. Should be an option in settings to turn it off. If anyone knows how please let me know. I don't use the s pen very often.
man_with_hair said:
I have a Samsung Galaxy Tab S3 and it's great but I can't figure one thing out. Which is the screens contrast. Dark scenes in Netflix or VLC player are too dark and hard to see. I tried different brightness settings, with/without blue light filter and the other color correction option for cinematic mode but nothing really works properly.
Is this an issue with the tablet or is there another setting to change the contrast or something?
Click to expand...
Click to collapse
Try switching from "adaptive display" to "oled cinema".
Sent from my SM-T820 using Tapatalk
DAvid_B said:
Try switching from "adaptive display" to "oled cinema".
Sent from my SM-T820 using Tapatalk
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Switching to modes other than Adaptive Display just gives me seemingly the same shade of yellow....
I have tab s2 and you can't change adaptive display. I wouldn't have bought this tablet if I'd known about this issue. Very annoyed.
I actually have the issue on my Samsung Tab S2, that the colors are really "hard" and lots of color information are missing in the video, details are lost in dark areas. Is there some fix for this or is the screen just too bad on the Tab S2? I know the Tab S3 has a HDR screen, and the S2 not. I dont have any HDR screens actually, but I can put color range to "full" on my desktop PC, which will en-light colors a bit, making details more pop out in dark areas (though black isnt fully black anymore if so).
Any color profile other than basic is mostly unusable, too much saturation. Still dark areas lack lots of information. Is there no way to fix this? I tested this actually
https://phandroid.s3.amazonaws.com/wp-content/uploads/2016/03/Screenshot_20160321-154452-400x711.png
and it helps with the details in dark areas, but it also makes the black bars of movies in Netflix and video players not black anymore but gray.
So from what i can tell, it's only a stock rom problem. As the screen looks amazing running liniage (best screen in the house). But I've recently decided to go back to stock debloated, as I think its running a bit snappier than liniage 16 or 17.
Has anyone found a black level fix for stock yet? (preferably not a screen tint app)
Touch the left hand side of the screen when watching netlix and a brightness slider appears
Baxy57 said:
Touch the left hand side of the screen when watching netlix and a brightness slider appears
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:cyclops: It's beyond what you're suggesting which is known :cyclops: but thanks for it
EDIT: I have now found a full workaround. First you need to enable Blue Light Filter. Then go to Settings > Accessibility > Visibility enhancements > Color adjustment > Personalized color, and choose all the colors in the correct order. If you do it correctly there won't be any change to the colors and Blue Light Filter will be "on", but actually not, which will override whatever Android is doing that's making the dark parts of movies way darker than they should be. So far I haven't found any cons of this workaround.
Original post:
Sorry to resurrect an old thread, but after trying to fix this problem for like half a day (lol) I think I found the best workaround so far. If you turn on Blue Light Filter and set its opacity to minimum, the filter will be barely noticable, but the brightness issue will be fixed.
One thing I noticed is that not all apps have this problem. For example VLC, Youtube do have it (you can even see the transition of colors and brightness for a second when exiting to desktop view). However Youtube Vanced doesn't have this issue, so I asssume the operating system does this dumb change of colors when it sees certain parameters in an app (maybe something in the manifest.json file?). It would be awesome if some more knowledgeable people could look into this issue, maybe they could find something about why YT Vanced has normal colors.

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