Develop Bugs

Sensitive eyes and black levels

I just picked up a Galaxy Nexus from WIND Mobile.
I have to say, the one thing I dread the most about AMOLED is the black/bright contrast. My eyes are very sensitive, and whenever I see something bright against an intensely dark background I get halos and it's very difficult to focus. For this reason I prefer LCD screens where the blacks are slightly grey. Nonetheless I decided to make the leap to the GNex because I like a lot of other things about it.
Do you think there is any sort of hack that could make the AMOLED look a bit more like an LCD? I realize this would affect battery life but basically what I'd like is to hack the colour space so that black becomes maybe 1-5% grey. I remember on CM7 there were hacks that could apply filters to make white into a more salmon-pinkish hue, a warmer white, etc. What I'm looking for is the reverse - leave the white alone but make the blacks greyer.
Anyone think this might be possible?

I don't know a specific solution, but here are some options:
If you're rooted, francois kernel and app can adjust the Gama levels, affecting all colors, but may help.
App Log graph can adjust your auto brightness levels.

Yes I am rooted.
Does increasing the gamma change the black levels? If so that could help.
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The black on my phone at highest brightness is a little bit grey..
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tcchuin said:
The black on my phone at highest brightness is a little bit grey..
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It seems to depend on the app. Some apps have a gentle dark grey gradient in the background. But the stock taskbar, even at full brightness, is just as black as the same part of the screen is when the screen is off.

Not trying to be a comedian here, but have you gotten your eyes checked lately?
Seeing halos is linked to several severe eyediseases or wearing wrong/none correction.

+1. Yup.
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Streaker said:
Not trying to be a comedian here, but have you gotten your eyes checked lately?
Seeing halos is linked to several severe eyediseases or wearing wrong/none correction.
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Fair enough. Optometrist says my eyes are healthy but I have large pupils that don't contract very efficiently. As a result I get halo effects at high contrast even when using proper vision correction. It's not something that poses a health threat otherwise. But he did advise me strongly against laser eye surgery as there would be a high risk of halos getting worse.
So that's me in a nutshell.
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Super dim is a root app and it can lower the brightness below the normal values
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ChongoDroid said:
Super dim is a root app and it can lower the brightness below the normal values
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I'm not looking to lower the brightness - I know how to do that already. I'm looking to decrease the contrast by making the black levels greyer.
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[APP] screenfilter

Found an app that dims your screen more than the stock brightness it helps save battery and helps when its dark.
Link!
https://play.google.com/store/apps/details?id=com.haxor
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wish they'd find away to get rid of the app installing bug .... Juicedefender has the same problem ...

Built into NardROM already.. good app to save battery..
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Thanks so much, great app!

nightmode
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Just a quick FYI, this will only give a battery life improvement on AMOLED screens. AMOLED is special like that. Using this app on an LCD-based device will, if anything, have a negative impact on battery life, as it's not influencing the actual backlight at all.
(P.S. Let's dispel this myth right now -- AMOLED displays DO NOT have a backlight. The pixels themselves emit light. AMOLED displays are literally nothing more than hundreds of thousands of very tiny LEDs made from organic compounds, and a clever transistor layout.)

[Q] Leaving screen on all night

Hey guys, how safe (for our screens) is it to leave it on over night used as a desk clock with the Daydream feature of 4.2? Its on super dim also. Just curious if I do this every day if my screen will give out early or something.
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geoldr said:
Hey guys, how safe (for our screens) is it to leave it on over night used as a desk clock with the Daydream feature of 4.2? Its on super dim also. Just curious if I do this every day if my screen will give out early or something.
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Aside from messing up with your sleep (can't really get into deep sleep, think android ), it will indeed use your screen and battery faster but shouldn't be anything dramatic.

BWolf56 said:
Aside from messing up with your sleep (can't really get into deep sleep, think android ), it will indeed use your screen and battery faster but shouldn't be anything dramatic.
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I see. I have my phone plugged in overnight and my case has a kickstand so for me its a pretty good feature that the clock has a super dim night mode. Thanks for answering.
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The only downsides I really see is killing the overall battery life and screen life. I would address if you can find how many hours of screen life these screens are rated for... I'm sure you could leave this screen on for years straight with out it going bad but it wouldn't hurt to check it out.
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Nooooooooooooo don't do it...it will cause burn in.....
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Thin_Bezel said:
Nooooooooooooo don't do it...it will cause burn in.....
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AMOLED screens aren't subject to image burn-in, are they?

I also use my phone as an alarm clock on my night stand while it's plugged in at night. I use the "Dock Clock" app and it goes very dim and cycles the clock around the screen very slowly so there'no chance of burn-in.

cjranucci said:
AMOLED screens aren't subject to image burn-in, are they?
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You sir, are correct. That is also true for all LED/LCD screens, plasma can have some burn in, but it's usually not permanent. Plus, daydream in Chronus is like a screen saver, it's not static, it moves.
As far as leaving the screen on all the time, AMOLED has a lifespan of about 10 years (depending on manufacturer & other variables). So unless you plan on keeping your S3 for ten years AND plan to always have the screen during that time, I think you'll be fine.
---------- Post added at 05:49 PM ---------- Previous post was at 05:40 PM ----------
When I would leave my screen on overnight my S2 (SGH-I777) using the dock clock, the white text would be blue in the morning. Not sure if was normal, but I could turn the screen off and back on and the text would be white again. I haven't done this on my S3.

Super NOOB Question

So I'm trying to figure some things out on my own, but one of which I cannot figure out.
So whenever my phone's battery reaches 5%, the brightness level is LOCKED onto the lowest possible brightness setting. I can't make it more, or less and it's really annoying.
I'm using stock rooted 4.1.2 with ktoonsz conservative kernel, nothing crazy.

thegame2388 said:
So I'm trying to figure some things out on my own, but one of which I cannot figure out.
So whenever my phone's battery reaches 5%, the brightness level is LOCKED onto the lowest possible brightness setting. I can't make it more, or less and it's really annoying.
I'm using stock rooted 4.1.2 with ktoonsz conservative kernel, nothing crazy.
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Do you happen to have power saving enabled?

LakeSoccer2 said:
Do you happen to have power saving enabled?
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No, it's disabled. Everything is normal until it hits 5%

thegame2388 said:
No, it's disabled. Everything is normal until it hits 5%
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Try using an app to control the brightness. Look for "Screen Adjuster" in the Play store, it may allow you to use a higher brightness at a low battery level.

LakeSoccer2 said:
Try using an app to control the brightness. Look for "Screen Adjuster" in the Play store, it may allow you to use a higher brightness at a low battery level.
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Yeah but why does it do this at 5% anyway?

thegame2388 said:
Yeah but why does it do this at 5% anyway?
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Most likely to conserve the last bit of energy it has left. So if you can't get to a charger right away, at least you'll have a tiny bit more of screen time
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LakeSoccer2 said:
Most likely to conserve the last bit of energy it has left. So if you can't get to a charger right away, at least you'll have a tiny bit more of screen time
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Yeah but during the day, the brightness gets so low that I can barely see it. I'd like to manually control the level of brightness and get rid of this "automatic" thing.

thegame2388 said:
Yeah but during the day, the brightness gets so low that I can barely see it. I'd like to manually control the level of brightness and get rid of this "automatic" thing.
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Hmm, are you saying you wish to get rid of the automatic level when it is at 5% or at any battery level?
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LakeSoccer2 said:
Hmm, are you saying you wish to get rid of the automatic level when it is at 5% or at any battery level?
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Yes I do. Obviously it's something out of the ordinary or else everyone would be complaining about it and it seems like it's just me.

I would agree with lakesoccer2 n just add an app to see if u can control it that way. One other thing, did you go into settings and click on display and then on brightness to see if the automatic box has a check in it? If you unchecked the box then you should be able to control your brightness. Hope this helps
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I'm trying LuxAuto these days and I'll report back.

SCREEN FILTER: Dim/Darken Screen app

I read this up yesterday and wanted to post it here too for those who don't know about the app yet. "Smart Filter".
This app is magnificient in that it doesn't tweak hardware functions, but it applies a dark layer. Thus making it work wonderfully with the OLED screens (Apparantly OLED can only be dimmed to a certain extent).
This app is fantastic for reading, viewing videos or taking notes at night. Also awesome for using your phone in the theatres (I guess?).
Once again, app is called: Screen Filter
https://play.google.com/store/apps/...utm_medium=organic&utm_term=screen+filter+app
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i use this app alot. great one because i too could not figure out how to lower the brightness.

Thanks for sharing!

I have tried many screen filter apps, and to this day, none have come close to Lux Auto Brightness.

Dr. Evo said:
I have tried many screen filter apps, and to this day, none have come close to Lux Auto Brightness.
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+1
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Does Lux apply
a filter as well? The only down side I can think of with the filter method is that it doesn't really save battery (in comparison to actually emitting less light).
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JiraffeLeung said:
Does Lux apply
a filter as well? The only down side I can think of with the filter method is that it doesn't really save battery (in comparison to actually emitting less light).
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I dont think it applies a filter. I think it allows you to go below stock settings.
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