Database Users

Galaxy s4 screen throttling

Anyone notice throttling on the screen in terms of contrast tone and brightness. You cannot turn it off no matter what settings you choose. One good example is when you pull up the keyboard and the brightness is fairly low, there's a huge color shift that pops up till the keyboard tray is gone again. Could a kernel fix this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2

i am trying to get some help from international model guys on this; mine DOES NOT change contrast and brightness if i disable every auto feature AND ALL POWER SAVING features. I have seen this on another GS4 and not on my own or my GF's with everything disabled. I wonder if there is a difference in screens or part batches and sensitivity or a different controller chip; another thing im looking into.
also the ambient light sensor; try covering it completely. i think that and the 'auto detect/modify screen contrast/colors' is running no matter what on certain GS4's.

Slade8525 said:
i am trying to get some help from international model guys on this; mine DOES NOT change contrast and brightness if i disable every auto feature AND ALL POWER SAVING features. I have seen this on another GS4 and not on my own or my GF's with everything disabled. I wonder if there is a difference in screens or part batches and sensitivity or a different controller chip; another thing im looking into.
also the ambient light sensor; try covering it completely. i think that and the 'auto detect/modify screen contrast/colors' is running no matter what on certain GS4's.
Click to expand...
Click to collapse
Yeah I've tried it all seems like its at the kernel level. I've had 3 galaxy s4s and they've all done it...
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2

This happened to me on gs3 when I opened internet browser on stock ROM. I just flashed CyanogenMod no more screen throttiling
Sent from my SGH-T959V using xda app-developers app

I'm sure someone will make a kernel that fixes these weird quirks that only I seem to notice lol
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2

i have calibrated many monitors before; maybe when the bootloader is unlocked and there is a full ROM dump someone could assist me to find the screen calibration adjustments so i can create a professional AdobeRGB and sRGB profile for the screen as well as rec 709 full and 16-235 video modes etc. I am not the only one interested in this; the Galaxy S III, Note II, and Google Nexus 7 are all excellent candidates for field monitors with excellent gamut. I just want mine to display colors as accurately as is possible for the moment; i keep all my demo reel footage and music videos i shot on it; a proper 'flat' image is important before editing, and my company we shoot raw, yet even a simple 8 bit example of before/after editing in raw environment would help our clients.
This is the first mobile full HD screen capable of such broadcast range of gamut; would be incredible to use as proper field monitor with correct calibrations.

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I think you should set its original setting then your issue may remove

brightness fluctuating?

Hey folks so i bit the bullet and gave my dna to the wife (still love that thing) and got a brand new G2.
Something weird is up w the brightness or contrast on this phone though: even w auto brightness off and brightness set to minimum the brightness seems to randomly adjust itself when interacting w the screen. Is this a bug or some kind of feature im not aware of? The DNA had it a bit when scrolling but nowhere near as noticeable as this.

I've noticed this as well and from my understanding this is something that all G2s have.
From what I have found this only happens when the brightness is low (i.e. less than %50) and has something to do with the phone trying to adjust the brightness based on what is being displayed on the screen. I have noticed it the most when using the XDA app when I'm scrolling down through a thread; the display brightness seems to randomly jump up and down just a bit as you scroll down with your finger. If you're not scrolling the brightness won't jump up and down.
Initially I thought it was just something goofy with the auto brightness, but as you pointed out the 'flickering' still occurs even when auto brightness is turned off. Hopefully this is just something that can be fixed with a software update as it is a bit annoying.

I use lux brightness app now and have no problems with this issue,it was an issue before.
Sent from my LG-D800 using xda app-developers app

I've noticed it too. Even with automatic brightness off, CABL turned off, and brightness at 68%, it'll still do it. I've poked around with Xposed, and I have yet to figure out why it does that. I've heard speculation that it's controlled in the kernel, so hopefully a kernel dev can figure out how to disable it.

I noticed this as well but its completely gone on on these new AOSP ROMs. If you are looking for a solution this is the best IMO.

xketch said:
I use lux brightness app now and have no problems with this issue,it was an issue before.
Click to expand...
Click to collapse
Try Lux or Velis Auto Brightness ftw. Way better than how the system handles auto brightness.
Sent from my LG-VS980 using xda app-developers app

Hmm i just noticed theres a "content adaptive backlight" app running..wonder if thats the culprit.

This thread seems to debunk that theory as disabling content adaptive backlight seems not to do anything.

yes it's cabl. many posts of mine were about this. we've come to the conclusion it may be activated on the kernel level bc changing anything in the app or build prop does nothing. it's gotta be kernel related. but yes it's content adaptive back light. it sucks.
Sent from my LG G2 using Tapatalk Pro

[Q] Way TOOO dim

I guess I should have done my research about OLED screens, but I feel that this screen is way too dim both indoors and outdoors. Is anyone else having problems with this? I know that the peak brightness is 475 on autobrightness, but I feel that the screen never reaches that. On another note, the colors seem very saturated and unreal even on movie mode...
Is there any way I can set the autobrightness to kick in at a higher lux indoors? I know it seems like I am venting, but I really like this phone but the display brightness may make me abandon for the Nexus 5...
Thank you everyone!

goft20 said:
I guess I should have done my research about OLED screens, but I feel that this screen is way too dim both indoors and outdoors. Is anyone else having problems with this? I know that the peak brightness is 475 on autobrightness, but I feel that the screen never reaches that. On another note, the colors seem very saturated and unreal even on movie mode...
Is there any way I can set the autobrightness to kick in at a higher lux indoors? I know it seems like I am venting, but I really like this phone but the display brightness may make me abandon for the Nexus 5...
Thank you everyone!
Click to expand...
Click to collapse
Root the phone and install a custom ROM. That will give you the ability to change the auto brightness levels easily.
You could also turn off auto brightness and set it manually so you fan boost it all the way up whenever you wanted.
As far as the hardware capabilities the screen is capable of being plenty bright. I could see mine if I was standing on the face of the sun.
Sent from your phone. You should be careful where you leave that thing.

Skipjacks said:
Root the phone and install a custom ROM. That will give you the ability to change the auto brightness levels easily.
You could also turn off auto brightness and set it manually so you fan boost it all the way up whenever you wanted.
As far as the hardware capabilities the screen is capable of being plenty bright. I could see mine if I was standing on the face of the sun.
Sent from your phone. You should be careful where you leave that thing.
Click to expand...
Click to collapse
I have rooted and installed a custom ROM (omega)...is there any way that I can do it on this rom or do I need cyanogenmod?
Sent from my GT-I9505 using Tapatalk

goft20 said:
I have rooted and installed a custom ROM (omega)...is there any way that I can do it on this rom or do I need cyanogenmod?
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
I don't know much about custom TW ROMs as I run aosp exclusively. I know its easy in cm ROMs. If its not a native feature of Omega I'm sure there is a mod you can tweak it with. You would have to search though. I don't know where to direct you.
Sent from your phone. You should be careful where you leave that thing.

Skipjacks said:
I don't know much about custom TW ROMs as I run aosp exclusively. I know its easy in cm ROMs. If its not a native feature of Omega I'm sure there is a mod you can tweak it with. You would have to search though. I don't know where to direct you.
Sent from your phone. You should be careful where you leave that thing.
Click to expand...
Click to collapse
Thanks!
Sent from my GT-I9505 using Tapatalk

Hack to increase Galaxy S5 brightness?

Hello,
I read that the S5 screen can go pretty bright, but only in certain situations and it's not controllable by the user.
Is there a hack that can allow me to set the screen brightness to be at its true max?
Thanks

lamenramen said:
Hello,
I read that the S5 screen can go pretty bright, but only in certain situations and it's not controllable by the user.
Is there a hack that can allow me to set the screen brightness to be at its true max?
Thanks
Click to expand...
Click to collapse
the only way you can set a screen to max is by using auto-brightness. The note 3 had that max brightness but only using stock auto-brightness. I dont think there is way to mod that as the screen has a protection in order to prevent overheating

isn't it already bright enough at 600+nits?
its the brightest phone that exists

eyecon82 said:
isn't it already bright enough at 600+nits?
its the brightest phone that exists
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Click to collapse
It is only that bright in direct sunlight. Normal max brightness is 351 nits. I believe it's 698 nits in direct sunlight. I believe OP is asking if there is a way to make it stay closer to the 698, via software hack.
To answer your question, even if it is the brightest phone out there, it still sucks in sunlight. In my honest opinion.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app

Djspinister said:
It is only that bright in direct sunlight. Normal max brightness is 351 nits. I believe it's 698 nits in direct sunlight. I believe OP is asking if there is a way to make it stay closer to the 698, via software hack.
To answer your question, even if it is the brightest phone out there, it still sucks in sunlight. In my honest opinion.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Oh ok. Didn't know that
-Sent from Tapatalk

eyecon82 said:
Oh ok. Didn't know that
-Sent from Tapatalk
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Click to collapse
Yea I literally just read about it the day before I posted that. I would like to see something like this too. Would be pretty cool!
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app

lamenramen said:
Hello,
I read that the S5 screen can go pretty bright, but only in certain situations and it's not controllable by the user.
Is there a hack that can allow me to set the screen brightness to be at its true max?
Thanks
Click to expand...
Click to collapse
You might see if this Note II hack works for you. I have no idea if it will and it's possible it may simply brick you.
Requires root:
http://forum.xda-developers.com/showthread.php?t=2008197

Any new information maybe??

nikoXda said:
Any new information maybe??
Click to expand...
Click to collapse
Search on Youtube "Hacking max brightness into AOSP for Samsung Galaxy Note 3"
and download the apps to hack your maximum brightness I dont know for sure if its working on S5 but on my S4 GT-I9506 (snapdragon800) makes a huge difference The GT-I9506 has a bit brighter screen in addition to the classic S4 around 5-10% and the classic S4 GT-I9505 can hit 475nits with autobrightness in direct sunlight so maybe my phone hits more than 500nits but I dont care about nits because the phone is really very bright!

auto brightness not so good?

Anyone else find the auto brightness not working well? It seems to bright and sometimes doesn't adjust until i turn auto off and on again

koppee1 said:
Anyone else find the auto brightness not working well? It seems to bright and sometimes doesn't adjust until i turn auto off and on again
Click to expand...
Click to collapse
I quit using it altogether...It drove me nuts.
Sent from my SM-T810 using Tapatalk

OK.. Guess it's not just me then.. Trying lux...

It really sucks. I literally have to hold it out and watch the screen slowly dim. Smh
Turrible..

Wow too bright? I always think its way too dark.

If it's too bright under certain lighting, adjust the slider until it's comfortable. Android will then remember that setting. This was introduced in Marshmallow.
And yes, I'm talking about adjusting the slider while auto brightness is active.
Sent from my LG-H910 using Tapatalk

Weird. I've actually been impressed with the auto brightness feature on my V20. Esp after how horrible it was on my G4. I gave up on using it on my G4 in about 2 days it was so awful.

Its good for me

I've given up on the auto brightness.. lux works fine on my v20. I can set specific screen brightness on any external light level

spexwood said:
If it's too bright under certain lighting, adjust the slider until it's comfortable. Android will then remember that setting. This was introduced in Marshmallow.
And yes, I'm talking about adjusting the slider while auto brightness is active.
Sent from my LG-H910 using Tapatalk
Click to expand...
Click to collapse
Would you mind telling us how to adjust the brightness slider on auto? All I KL now is you can tap the % for a preset 0, 50 and 90.

Auto brightness has a mind of its own on my phone.
I'll set to like 20% and it'll immediately go back up to 60% or whatever.
I'll slide it back down and it'll go right back up by itself and never go back down.

Lux is the key.
Sent from my LG-H918 using Tapatalk

Autobrightness is good. How else am I to achieve 5 hours SOT a day.

@rbiter said:
Would you mind telling us how to adjust the brightness slider on auto? All I KL now is you can tap the % for a preset 0, 50 and 90.
Click to expand...
Click to collapse
Its pretty much as it sounds. With auto brightness on, if it's too bright or too dark, just adjust the slider in the notification bar until its to your liking. From then on, whenever Android experiences that same level of light, it'll use your settings instead of the default, and fills in the blanks using a calculated curve.
I honestly don't see any point in using Lux because adjust the stock brightness works just as good, if not better. Yeah, it does mean that there will be a bit of time before Android learns all the typical lighting levels, but it'll get there as you use the phone throughout your typical day.
Sent from my LG-H910 using Tapatalk

spexwood said:
Its pretty much as it sounds. With auto brightness on, if it's too bright or too dark, just adjust the slider in the notification bar until its to your liking.
Sent from my LG-H910 using Tapatalk
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Click to collapse
I used this on my Note7 but I can't get it to adjust on my V20, the slider doesn't move for me.
Using T-Mobile if that matters.

pbelcomp said:
I used this on my Note7 but I can't get it to adjust on my V20, the slider doesn't move for me.
Using T-Mobile if that matters.
Click to expand...
Click to collapse
spexwood said:
Its pretty much as it sounds. With auto brightness on, if it's too bright or too dark, just adjust the slider in the notification bar until its to your liking. From then on, whenever Android experiences that same level of light, it'll use your settings instead of the default, and fills in the blanks using a calculated curve.
I honestly don't see any point in using Lux because adjust the stock brightness works just as good, if not better. Yeah, it does mean that there will be a bit of time before Android learns all the typical lighting levels, but it'll get there as you use the phone throughout your typical day.
Sent from my LG-H910 using Tapatalk
Click to expand...
Click to collapse
That is what I'm asking. Slider doesn't move when auto on.

Agree, auto is sketchy and needs some tweaking.

@rbiter said:
That is what I'm asking. Slider doesn't move when auto on.
Click to expand...
Click to collapse
Are you using T-Mo version too?
I wonder if T-Mobile took this out for some reason. I haven't a clue as to why though!
What's starting to annoy me about the V20 is that every carrier has stupid tweaks to the software. One carrier is missing Android's native auto brightness (T-Mo maybe), while another carrier is missing the SmartWorld functionality (my ATT version), etc. [emoji35]
Sent from my LG-H910 using Tapatalk
---------- Post added at 11:05 PM ---------- Previous post was at 11:04 PM ----------
leyvatron said:
Agree, auto is sketchy and needs some tweaking.
Click to expand...
Click to collapse
What about you? What version of the phone are you using? I'm just curious to see if all of you are on T-Mobile.
Sent from my LG-H910 using Tapatalk

spexwood said:
Are you using T-Mo version too?
I wonder if T-Mobile took this out for some reason. I haven't a clue as to why though!
What's starting to annoy me about the V20 is that every carrier has stupid tweaks to the software. One carrier is missing Android's native auto brightness (T-Mo maybe), while another carrier is missing the SmartWorld functionality (my ATT version), etc. [emoji35]
Sent from my LG-H910 using Tapatalk
---------- Post added at 11:05 PM ---------- Previous post was at 11:04 PM ----------
What about you? What version of the phone are you using? I'm just curious to see if all of you are on T-Mobile.
Sent from my LG-H910 using Tapatalk
Click to expand...
Click to collapse
Im on Verizon.

Did Verizon also remove this feature?
If you change the level with auto brightness on, it's supposed to work unless the carrier tampered with the programming. This is supposed to be a stock Android feature that even Samsung kept on their devices. -_-