Develop Bugs

ScreenDim 1.10 beta -- need testers

I apologize if this violates forum rules.
ScreenDim is my (paid) app for dimming the screen beyond standard OS settings. On OLED devices, it basically does what ScreenFilter does, but I think in a rather more friendly and useful manner, including pre-sets. (On LCD devices, it's much better than ScreenFilter, as it actually dims the backlight, thereby improving contrast and battery life.)
I just finished making a beta of ScreenDim 1.10. The main new feature is Easy Mode which combines the brightness and contrast sliders into one. Currently, Easy Mode only works on Galaxy S2 (including Epic 4G Touch and other versions) and Kindle Fire. You can toggle Easy Mode with Menu | Settings | Easy Mode.
I'd be grateful for any beta test results. To the first ten people who send me useful reports, I'll give give free copies of the paid ScreenDim 1.10 once it's released, as well as free copies of my LunarMap HD and Force2SD apps, if you want them. (Alas, I don't have a gift-code setup arranged, so the free copies won't auto-upgrade.)

I would be more than happy to be your first beta tester!
Sent from my SPH-D710 using xda premium

Buggy at times, when at 0% it doesn't work with volume keys --- only min: 0.0% and Max 0.1% when put down to 0.0% with volume keys...
Same applies when pressing min (highest will go to 0.1% when holding volume up and repeatedly hitting volume up...)
When screen is too low a dialogue should pop up saying if you do not confirm this brightness within 15 seconds, it will go back to your last setting...
There should be an option to disable notification icon (not invisible, just not at all) totally when using and/or not using the application.
A more detailed About/Help menu would be more useful...
Sent from my SPH-D710 using xda premium

If I've helped, I am interested in free paid versions of your apps... I believe that if you send a check in the mail after the person buys the app as reimbursement would be more easier than consistently updating via email. (Not to overstep you or anything, just a suggestion.)
Sent from my SPH-D710 using xda premium

App works as promised. Some screenshots attached.
Suggestions: have way to disable notification icon.
Also when not in easy mode the lowest you can go is 11.8 on both sliders. Not sure if that is design or a bug.
Sent from my Galaxy S2

Looks good, except the plus button above the brightness slider doesn't work. I'll play with it tonight and let you know how it goes.
Sent from my SPH-D710 using xda premium

Nice app! Everything seems to be working, I just don't understand the "Active" action..I'm not sure what the purpose of it is.
Sent from my SPH-D710 using xda premium

deedscreen said:
If I've helped, I am interested in free paid versions of your apps... I believe that if you send a check in the mail after the person buys the app as reimbursement would be more easier than consistently updating via email. (Not to overstep you or anything, just a suggestion.)
Click to expand...
Click to collapse
Great idea. I can send a paypal payment. I had someone do that for me when I tested their app, and I forgot that I could do it myself.

Bigt2003 said:
Looks good, except the plus button above the brightness slider doesn't work. I'll play with it tonight and let you know how it goes.
Click to expand...
Click to collapse
When did you download? I think I fixed that problem around midnight last night and uploaded a version with that fixed. (But I forgot to mark a version number.)

chucky_93 said:
Nice app! Everything seems to be working, I just don't understand the "Active" action..I'm not sure what the purpose of it is.
Click to expand...
Click to collapse
You mean the "Active" checkbox? That turns ScreenDim on and off.

ravizzle said:
Suggestions: have way to disable notification icon.
Click to expand...
Click to collapse
Can't be done without sacrificing reliability. Unless you do something root-ish (and I really want this app to be non-root), the only way I know of keeping an app from being killed in low-memory situations is by using Service.startForeground(), but the OS requires a notification icon when you do that.
Also when not in easy mode the lowest you can go is 11.8 on both sliders. Not sure if that is design or a bug.
Click to expand...
Click to collapse
If you want, you can make the brightness slider go down to 0.4% by using the "Set minimum brightness" menu option. But you will find that below 11.8%, the brightness stops changing, so there is no point to that, and that's why I set the default minimum for the Galaxy S2 series to 11.8%.
You could make contrast go below 11.8%, but the display would probably be dimmer than anybody wants (I am about the pickiest user in terms of darkness, because I am an amateur astronomer, and I don't want the device to destroy night vision), and the display quality would be low. Unfortunately, given how OLED devices work, at low brightness levels there are much fewer colors available.
Technical stuff in case anybody is curious:
The way Easy Mode works is that 30% on the Easy Mode slider is equivalent to 11.8% on the brightness slider and 100% on the contrast slider. When you go above 30% in Easy Mode, you're increasing brightness and keeping contrast at 100%. When you go below 30% in Easy Mode, brightness stays at 11.8%, and contrast goes down, hitting 11.8% when the Easy Mode slider is at 0%.
On LCD devices, the brightness slider controls the backlight and the contrast slider controls the white level (by drawing a gray rectangle over the screen). On OLED devices, both of them have a similar visual effect, namely they both reduce the intensity of the miniature LEDs that make up an OLED display. But at low brightness levels, you have fewer color intensities available on the physical display.

Works great. I have been waiting for this so I don't have hear the wife complain that my screen is too bright at night and keeping her up.
Sent from my SPH-D710 using xda premium

Loving it! I am trying to purchase the paid version but the Play Store keeps popping an error message on both phones. I guess I will have to buy it later today. Nice job!
Sent from my Nexus S 4G using Xparent Blue Tapatalk 2

I just posted 1.10b (see link in original post) which fixes a few minor issues.

arpruss said:
You mean the "Active" checkbox? That turns ScreenDim on and off.
Click to expand...
Click to collapse
Oh I see..well this app seems to be working great
Sent from my SPH-D710 using xda premium

everything works really well, tested in easy mode... only issue was the " + " button didn't work the first time I pressed it, and the n I pressed " - " and they both started working again. I could not get the issue to happen again, don't know why it happened the first time.

works as expected. only problem, and perhaps this is intentional, is that if you change the brightness in the android display settings (as oppoposed to the app), then it goes back to the standard android brightness scheme. in other words, the app and android settings dont seem to correlate with eachother? lemee try to give you an example...
i go into android display settings and change it to 100%. then i go into your app and set the brightness to 0%. this dims the screen down tremendously, which is exactly what i like. okay, now if i go back into android display settings (still leaving the app still at 0% with ultra dim display), and lower the android screen brightness setting to say... 95%, the app seems to disable or something and the brightness will jump UP to android's 90%. instead of the display getting further dimmer, it instead shoots back up to almost full brightness when it should be going down. i hope that makes sense.

cnstarz said:
works as expected. only problem, and perhaps this is intentional, is that if you change the brightness in the android display settings (as oppoposed to the app), then it goes back to the standard android brightness scheme. in other words, the app and android settings dont seem to correlate with eachother? lemee try to give you an example...
Click to expand...
Click to collapse
Right, the system settings partly override ScreenDim's brightness setting. I can't lock in the settings without root.

this app rocks man, thx

I found a bunch of bugs when using "Quick activate" and loading presets and changing settings starting from a disabled state. I fixed the ones I found in 1.10c (now up), but there may be others.

Galaxy Nexus Collaborative Optimal Color Settings

Hey Guys, I've seen people's color settings all over for the Galaxy Nexus, we have different tools, different kernels and different ways to improve the Purple/Red/Tint Issues with Franco's App, Morfics, as well as free tools like Trickster Mod's App and the new CM10 Color Multiplier, Color Gamma Tuning, and Color Hack presets.
Goal: Have all this information in one place
I have created a Publicly Accessible Spreadsheet on Google Docs that you can edit without sign-in, please either
A:Edit the doc with your color settings or
B: Reply to this thread with your color settings for each different kernel and app and one of us in the thread may update the spreadsheet. Also only reply if you can provide useful information regarding these issues.
I know allot of people are stuck with their Galaxy Nexus, so lets all work together on sharing our settings and tips/tricks regarding this since samsung still has not fixed the issue and still sends out devices with this issue. I've heard people go through 5-6 replacements, ouch.
Checkout the format of the spreadsheet, and feel free to improve it.
Collaborative Nexus Color Spreadsheet here
Other useful Screen Color Links:
[Tips] Screen Color Calibration for the Galaxy Nexus
Galaxy Nexus - Purple Tint + Grainy Screen
Trickster MOD app
Color Calibration. Before / after
Galaxy Nexus grainy and vertical banding screen!
Edit: If requested, I could make a Google Docs form to auto populate the spreadsheet
Anyone know of a way to disable the screen dimming on the notification drop down? When it dims on low brightness the notification and background is purple.

No clue how to get rid of the screen dimming on drop down. You should watch out when running the higher contrast numbers, burn in is a spooky thing. I'm glad that a list of some type is being made (suggestion gathering has been abysmal), although every screen has it's own inherent faults and oddities, it will be very interesting to see the results. Thanks man.

Good idea. I added a couple.

Thanks for this list. I've been messing around with color settings for awhile now with no success. I always felt like the screen had a tinge of green that I couldn't get rid of.

TyroneLT said:
Thanks for this list. I've been messing around with color settings for awhile now with no success. I always felt like the screen had a tinge of green that I couldn't get rid of.
Click to expand...
Click to collapse
Adding some red should help that. My problem is that there are a couple "hot spots" of yellowing and magenta that I have to strike a balance between. Went through a few different settings but posted my current to the spreadsheet.
Previous:
200,215,280
-2,0,15
-23
And I added a Gradient Fix column since I find using that mod changes what you need for color settings to make things nice.
Also worth mentioning that in some apps the OMAP Gamma runs on a 1.0-2.0 scale (by 0.2s) and in others 5-10 (by 1s), these are equivalent however.

Finally a useful idea for a thread.

Just wondering, isn't every screen at least slightly different? I'm pretty sure that's why there's color calibration, or the screens would come calibrated perfectly.

8mileroad said:
Just wondering, isn't every screen at least slightly different? I'm pretty sure that's why there's color calibration, or the screens would come calibrated perfectly.
Click to expand...
Click to collapse
There isn't a HUGE variation in the differences. Each screen isn't a special snowflake. There's a relatively small, finite number of different screen settings that work for all screens.
This will give people a narrowed-down list to try first instead of spending hours experimenting.

Im finding my self having OCD in getting this perfect lol, just added another setting that I found pretty nice but there is still slight purple at 1-5percent brightness. Thanks guys for adding your settings to the spreadsheet, I think with enough data we can average the setting variables and find a good base setting
For me color is only an issue below 20 percent and sometimes lower depending on gamma settings, im finding that gamma and contrast seem to help more than the actual color multipliers
Edit: Just updated the spreadsheet with more settings others have shared on XDA, credits go to isinisterx, amit_sen
ÜBER™, for sharing their settings in other threads

This worked wonders for me
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Really, the only purpose to document all these settings is for statistics. To show that more Nexus screens come with x-color tint than y-color. Even then, you're trusting people to know what white and gray are supposed to look like. I've seen how most people set up their TVs - they're usually wrong.
There isn't a HUGE variation in the differences. Each screen isn't a special snowflake. There's a relatively small, finite number of different screen settings that work for all screens.
This will give people a narrowed-down list to try first instead of spending hours experimenting.
Click to expand...
Click to collapse
It doesn't take hours, it's a pretty easy process:
Color multiplier is white balance, which also affects overall color tone. Get two things: a blank white screen, and a pure black screen with white text (settings is easy if you have gradient disabled.) Use these, and go with what you think white should be, unless you have a good reference or a calibration tool. For example, I dropped red/green because my screen was too yellow stock. I then found that I could still almost see the individual red pixels sticking out of text (best way I can describe it), and looking at my home screen felt a little too "pink", dropped red a little more until it looked fine.
Next is gamma/offset/whatever which is the adjustment of everything in between white and black. This one can be trickier because grays can easily look too red/brown, too blue, too yellow, etc. and on these screens the gray balance will change depending on brightness. Yes, sometimes drastically (see: purple tint) This can be a pain if you need to lower greens because green can't be lowered (the screen goes nuts), and the colors don't scale the same, so if you increase red and blue by the same amount one will probably be stronger than the other.
Just from my experiences. And yes, each screen is a special snowflake. Most people are just happy enough with canned settings.

The only thing I would add to that is if you are going to eyeball the whites and grays without a reference, it's better to do it in soft, indirect daylight instead of artificial light, which has various color tints depending on what kind of bulb you use.

vkamicht said:
Really, the only purpose to document all these settings is for statistics. To show that more Nexus screens come with x-color tint than y-color. Even then, you're trusting people to know what white and gray are supposed to look like. I've seen how most people set up their TVs - they're usually wrong.
It doesn't take hours, it's a pretty easy process:
Color multiplier is white balance, which also affects overall color tone. Get two things: a blank white screen, and a pure black screen with white text (settings is easy if you have gradient disabled.) Use these, and go with what you think white should be, unless you have a good reference or a calibration tool. For example, I dropped red/green because my screen was too yellow stock. I then found that I could still almost see the individual red pixels sticking out of text (best way I can describe it), and looking at my home screen felt a little too "pink", dropped red a little more until it looked fine.
Next is gamma/offset/whatever which is the adjustment of everything in between white and black. This one can be trickier because grays can easily look too red/brown, too blue, too yellow, etc. and on these screens the gray balance will change depending on brightness. Yes, sometimes drastically (see: purple tint) This can be a pain if you need to lower greens because green can't be lowered (the screen goes nuts), and the colors don't scale the same, so if you increase red and blue by the same amount one will probably be stronger than the other.
Just from my experiences. And yes, each screen is a special snowflake. Most people are just happy enough with canned settings.
Click to expand...
Click to collapse
What brightness setting should we test this on? My colors look fine it's just it's a bit dark on auto brightness which is at like 1/3 brightness
Mandated from Stannis Baratheon

exzacklyright said:
What brightness setting should we test this on? My colors look fine it's just it's a bit dark on auto brightness which is at like 1/3 brightness
Mandated from Stannis Baratheon
Click to expand...
Click to collapse
I usually calibrate at maximum brightness, then double check if the settings are ok at 50% and minimum brightness.
You probably should do this on the brightness setting you're most regularly at.

I personally did my calibration at 50% as I almost never go above that (unless in direct sunlight.) I read in another calibration thread someone mentioned that with default settings 50% brightness is quite close to a "standard" brightness level (measured in IRE) - so I'm going on someone's word, but it looks good and natural to me.
harveydent said:
You probably should do this on the brightness setting you're most regularly at.
Click to expand...
Click to collapse
Agreed with this, it'll be different for everyone

I think mine looks better setting the trinity contrast to 10...but then again when i add a widget i can't even read anything.
Mandated from Stannis Baratheon

exzacklyright said:
I think mine looks better setting the trinity contrast to 10...but then again when i add a widget i can't even read anything.
Click to expand...
Click to collapse
Screenshots don't really prove anything.. It's all in how your screen looks in person after compensating for the "special snowflakiness"
Take a photo if you want to show us how different settings are affecting things.

osm0sis said:
Screenshots don't really prove anything.. It's all in how your screen looks in person after compensating for the "special snowflakiness"
Take a photo if you want to show us how different settings are affecting things.
Click to expand...
Click to collapse
I just noticed... haha true.. But that's the issue. I can't read the black on the gray.... while looking at my phone. What should I adjust?

Still can't figure out what to change. The colors are fine but the darks are dark and hard to compare them to against each other
Edit: I'm stupid! I was using the lowest omap gamma..should be 1 right :/
Mandated from Stannis Baratheon

Currently using Paranoid 1.9.4 which is based on CM10 early preview , so comes with CM 10 default kernel : 3.0.36 .
Color multiplier : 1 , 1, 1
Gamma : RGB : 9:0:16 with DSS gamma : off
No trinity contrast applied ,

[Q] Red sensor light on front of GN2

I noticed last night while using my GN2 in the dark that the sensor on the right hand side of the phone, closest to the speaker above the samsung logo has a dim red glow. Does anybody know what this sensor is for?

oRAirwolf said:
I noticed last night while using my GN2 in the dark that the sensor on the right hand side of the phone, closest to the speaker above the samsung logo has a dim red glow. Does anybody know what this sensor is for?
Click to expand...
Click to collapse
Yeah I have noticed that mine does that too. I'm glad I'm not the only one. It's likely an ambient light sensor, but I don't know why it would glow. Also mine only does it when the phone is asleep once you turn on the screen it goes away.

It the light sensor. If you guys have auto brightness enabled its always glowing to detect the light and adjust the screen brightness accordingly

Avatar said:
It the light sensor. If you guys have auto brightness enabled its always glowing to detect the light and adjust the screen brightness accordingly
Click to expand...
Click to collapse
That makes sense. I was thinking it was because I had the hand over the sensor notification thingy turned on.
Sent from my SPH-L900 using xda premium

Avatar said:
It the light sensor. If you guys have auto brightness enabled its always glowing to detect the light and adjust the screen brightness accordingly
Click to expand...
Click to collapse
Interesting... I hate auto brightness and always turn it off. Why then would it be glowing when the screen is asleep?

Avatar said:
It the light sensor. If you guys have auto brightness enabled its always glowing to detect the light and adjust the screen brightness accordingly
Click to expand...
Click to collapse
Correction. The red glow people notice is an Infra Red emitter which is used in conjunction with the proximity sensor. The light sensor is the black hole to the right of the red glow people report.
You can test this by using at CMOS based camera (i.e. the camera in another smartphone, or any point-and-shoot digital)
Point the camera at the Galaxy Note's front while the screen is off and you'll see the light is bright white coming from the point where we see the faint red glow. It's most pronoun when tested in a dark room.
This is cause IR emitters are generally just LEDs which work at the far red side of the spectrum and near-visible red light is not a real concern in the applications they're used in. You see this alot on "night time security cameras" that have the arrays of IR LEDs to light up night shows with near 0 LUX cameras.
Also try testing your TV remote against your phone's camera, you'll see it strobe bright light the camera can see but you can't. Get an array of high power IR LEDs and you won't need a flash for you smart phones at night. Lots of fun stuff to do with these.

I was actually convinced it was the sensor used to to monitor your eyes for the smart stay feature.

Jed Dignazio said:
I was actually convinced it was the sensor used to to monitor your eyes for the smart stay feature.
Click to expand...
Click to collapse
The front facing camera takes care of that.

mr_wrong_0 said:
Interesting... I hate auto brightness and always turn it off. Why then would it be glowing when the screen is asleep?
Click to expand...
Click to collapse
Do you have quick glance on?
Sent from the Galaxy beast note ll

the red light that you see is the night sensor, just wave your hand above the sensor in the dark, a blue notification light will light up and then the top screen will glow showing you the time, missed calls , message and battery percentage. it's awesome...

One word. Skynet.
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aramova said:
Correction. The red glow people notice is an Infra Red emitter which is used in conjunction with the proximity sensor. The light sensor is the black hole to the right of the red glow people report.
You can test this by using at CMOS based camera (i.e. the camera in another smartphone, or any point-and-shoot digital)
Point the camera at the Galaxy Note's front while the screen is off and you'll see the light is bright white coming from the point where we see the faint red glow. It's most pronoun when tested in a dark room.
This is cause IR emitters are generally just LEDs which work at the far red side of the spectrum and near-visible red light is not a real concern in the applications they're used in. You see this alot on "night time security cameras" that have the arrays of IR LEDs to light up night shows with near 0 LUX cameras.
Also try testing your TV remote against your phone's camera, you'll see it strobe bright light the camera can see but you can't. Get an array of high power IR LEDs and you won't need a flash for you smart phones at night. Lots of fun stuff to do with these.
Click to expand...
Click to collapse
I'm going to look for ir emitters now thanks lol
Sent from my SPH-L900 using xda premium

Bunch of dummies! Jk lol.. That is the motion sensor and it turns on when the screen is off because you have quick glance from the motion settings enabled. Turn off screen glance and no more red light when screen is off. Ps screen glance is when your phone is sleep and the swipe of your hand over the red sensor turns on the screen to give you a preview. It also comes on when you're on a call. You guys are welcome for the answer
Sent from my SPH-L900 using xda app-developers app
---------- Post added at 06:30 PM ---------- Previous post was at 06:26 PM ----------
Avatar said:
It the light sensor. If you guys have auto brightness enabled its always glowing to detect the light and adjust the screen brightness accordingly
Click to expand...
Click to collapse
Not true. It is not the light sensor or the reason why it's glowing.
Sent from my SPH-L900 using xda app-developers app
---------- Post added at 06:31 PM ---------- Previous post was at 06:30 PM ----------
Subiegsr said:
That makes sense. I was thinking it was because I had the hand over the sensor notification thingy turned on.
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
Correct
Sent from my SPH-L900 using xda app-developers app
---------- Post added at 06:36 PM ---------- Previous post was at 06:31 PM ----------
Stank0 said:
The front facing camera takes care of that.
Click to expand...
Click to collapse
Yup!
Sent from my SPH-L900 using xda app-developers app

i thought it was just a charging notification because it goes away when hitting power on stock
and when fully charged its a bright green so i think its fine
but you might can get led flow to maybe change that particular light?

Tha_Dynasty2049 said:
i thought it was just a charging notification because it goes away when hitting power on stock
and when fully charged its a bright green so i think its fine
but you might can get led flow to maybe change that particular light?
Click to expand...
Click to collapse
They are talking about something completely different, than the charge indicator.

that red glow is the PROXIMITY sensor
My OG Evo had the red light
so did my Evo 3D
and my galaxy SII
it technically isn't even a motion sensor. It just detects when your face is up to the phone (to turn screen off during calls) or when you touch it with the quick glance thing turned on (to turn the screen on)
It doesn't actually detect motion, but instead detects the distance of an object to the sensor

I don't have quick glance on, or any of those motion things, but my proximity sensor seems to get stuck on (and non reactive) every now and then. A reboot to the phone fixes it usually. Anyone else randomly getting it stuck on? I know it doesn't waste much battery at all, but I do know that it confuses apps that use sensor.proximity attributes, so a fix would be nice. I'm complete stock.

aramova said:
Correction. The red glow people notice is an Infra Red emitter which is used in conjunction with the proximity sensor. The light sensor is the black hole to the right of the red glow people report.
You can test this by using at CMOS based camera (i.e. the camera in another smartphone, or any point-and-shoot digital)
Point the camera at the Galaxy Note's front while the screen is off and you'll see the light is bright white coming from the point where we see the faint red glow. It's most pronoun when tested in a dark room.
This is cause IR emitters are generally just LEDs which work at the far red side of the spectrum and near-visible red light is not a real concern in the applications they're used in. You see this alot on "night time security cameras" that have the arrays of IR LEDs to light up night shows with near 0 LUX cameras.
Also try testing your TV remote against your phone's camera, you'll see it strobe bright light the camera can see but you can't. Get an array of high power IR LEDs and you won't need a flash for you smart phones at night. Lots of fun stuff to do with these.
Click to expand...
Click to collapse
This. is. the. RIGHT. answer.

Screen does not come back on when moving it away from your face
The issue I have is that when I make or receive a call once the screen goes off after putting it up to your face it will not come back on even after hitting power or any other keys. It acts like its still up against your face. I flashed back to my recovery and tried several roms but still the same issue. There are no special features on like quick glance. Has anyone else had this issue?

Whats up with the gamma color settings on ROMS

Hey im still noobish about quite a few things and im wanting to know about what changing colors on my device do...I've heard that it helps battery somewhat but i didn't know if anything else. Like making certain colors pop more or whatever. Just curious about what some peoples thoughts are on this and if anyone has their phone set a certain way with colors that makes their phone "pop" out or looks better.....i would like to see some screenshots and what settings you guys have on your device....much appreciated if anyone can show and help me out. Thanks
Sent from my Galaxy Nexus using xda app-developers app

npainter7 said:
Hey im still noobish about quite a few things and im wanting to know about what changing colors on my device do...I've heard that it helps battery somewhat but i didn't know if anything else. Like making certain colors pop more or whatever. Just curious about what some peoples thoughts are on this and if anyone has their phone set a certain way with colors that makes their phone "pop" out or looks better.....i would like to see some screenshots and what settings you guys have on your device....much appreciated if anyone can show and help me out. Thanks
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
i use these color settings on my gnex and they are the best IMO..
contrast is -15 the rest are in the pic

k786 said:
i use these color settings on my gnex and they are the best IMO..
contrast is -15 the rest are in the pic
Click to expand...
Click to collapse
Sweet....thanks, so what does that all do to your device? Battery battery life, better color saturation or whatever? I'd like to know the point of doing this to the device and benefits...or if its just for personal fun
Sent from my Galaxy Nexus using xda app-developers app

So no one is willing to explain any of this to me?
Sent from my Galaxy Nexus using xda app-developers app

all it does is adjust the screen color/gamma. any difference in battery life would be a placebo effect. it might sound kind of pointless but i know that i and probably alot of other people would go insane if we lost the ability to adjust the screen like this. im a sucker for screen with lots of gamma reduction, the colors look so much more crisp and vivid; you can make it look damn good. decreasing the gamma will help make the colors crisper and less washed out, and the blacks blacker. you can also change the color balance -- some people notice a yellowish tint on the stock rom, adjusting the color values you can completely remove any tint and achieve a pretty true white.
edit: regarding screenshots, you wont see anything from a screenshot. screenshots show what the system is rendering, not what the screen is displaying. heres my settings, they may be a little too dark for you:
gamma adjustment - 0
red - 0
green - 0
blue - -3
color multiplier-
red - 153
green - 156
blue - 199

username8611 said:
all it does is adjust the screen color/gamma. any difference in battery life would be a placebo effect. it might sound kind of pointless but i know that i and probably alot of other people would go insane if we lost the ability to adjust the screen like this. im a sucker for screen with lots of gamma reduction, the colors look so much more crisp and vivid; you can make it look damn good. decreasing the gamma will help make the colors crisper and less washed out, and the blacks blacker. you can also change the color balance -- some people notice a yellowish tint on the stock rom, adjusting the color values you can completely remove any tint and achieve a pretty true white.
edit: regarding screenshots, you wont see anything from a screenshot. screenshots show what the system is rendering, not what the screen is displaying. heres my settings, they may be a little too dark for you:
gamma adjustment - 0
red - 0
green - 0
blue - -3
color multiplier-
red - 153
green - 156
blue - 199
Click to expand...
Click to collapse
Thanks for explaining this to me....i known screenshots wouldn't show the difference. I meant just a screenshot of peoples settings....so this is what i have that i can change...i think some peoples are different. Any suggestions? Lol
Sent from my Galaxy Nexus using xda app-developers app

Yeah some people's are slightly different, it dependant on the rom they are running. It's hard so say what to set yours at, some screens just don't look the same as others at the same settings. I would just get a few pictures you really like, put them on you sd card and use them as a reference to adjust them, just pick whatever looks best to you, that's what I did.

If you use Franco kernel updater app, trickster or tkt from play store you will have more options. Gives you ability to calibrate the screen to correct for poor color, mine is beautiful, that's why I can't leave this phone.
Sent from my Galaxy Nexus using xda app-developers app

Settings will be different from display to display. Also from brightness settings can potentially have an effect on how things look too. Unfortunately there is no universal plug in these numbers and your display will look great. Also, a bit of subjectivity can come into play here as well. As mentioned using a picture of something you know and adjusting settings until it looks right is a great idea.
http://forum.xda-developers.com/showthread.php?t=1790325 <-- that thread has a discussion about various settings, including a spreadsheet in the OP where there is a list of them. Which once again shows that people's settings are all over the place so you probably will have to do some tweaking to get them how you want.

VonEsch said:
If you use Franco kernel updater app, trickster or tkt from play store you will have more options. Gives you ability to calibrate the screen to correct for poor color, mine is beautiful, that's why I can't leave this phone.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
And by calibrating, it will automatically change the colors for you for the best looking results?
Sent from my Galaxy Nexus using xda app-developers app

npainter7 said:
And by calibrating, it will automatically change the colors for you for the best looking results?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Not automatically, you will need to put in things manually look up calibration color galaxy nexus as there are lots of posts and charts saying what people use, pick one that is close and tweak it from there
Sent from my Galaxy Nexus using xda app-developers app

Screen Brightness

HI have auto brightness turned off, but when scrolling web pages I notice the brightness changing. Its seems to get darker if images are displayed and brighter when I scroll past them. I dont notice this in any other application, but I suspect its the mostly white background of web pages. Do I have a defective unit or is this normal?

nunyabiz said:
HI have auto brightness turned off, but when scrolling web pages I notice the brightness changing. Its seems to get darker if images are displayed and brighter when I scroll past them. I dont notice this in any other application, but I suspect its the mostly white background of web pages. Do I have a defective unit or is this normal?
Click to expand...
Click to collapse
I had this problem on my S3, I'm assuming your using the stock browser if so then press "Menu" and click Brightness and then uncheck auto brightness - hopefully that helps.

Geordie Affy said:
I had this problem on my S3, I'm assuming your using the stock browser if so then press "Menu" and click Brightness and then uncheck auto brightness - hopefully that helps.
Click to expand...
Click to collapse
I have auto brightness off in the settings menu, but don't see it in the browser menu.

go to device - display and change the screen mode. I believe auto will use dynamic lighting. I've got it on movie.

madsquabbles said:
go to device - display and change the screen mode. I believe auto will use dynamic lighting. I've got it on movie.
Click to expand...
Click to collapse
I have it set on standard.

nunyabiz said:
I have it set on standard.
Click to expand...
Click to collapse
Went to best buy and looked at the display and I noticed the same brightness fluctuation. A best buy employee though he might have seen it, and the Samsung rep says she doesn't see it. So I guess I have sensitive eyes and that's just a feature of this tablet. I hope I can learn to live with it.

nunyabiz said:
Went to best buy and looked at the display and I noticed the same brightness fluctuation. A best buy employee though he might have seen it, and the Samsung rep says she doesn't see it. So I guess I have sensitive eyes and that's just a feature of this tablet. I hope I can learn to live with it.
Click to expand...
Click to collapse
AH...I think I have the answer.
While on homescreen press "menu" then "settings" then "Display" then Uncheck "Auto Adjust Screen Tone"
I must have done this on my S3 and forgot :silly: either way hopefully this fixes it for you.

Geordie Affy said:
AH...I think I have the answer.
While on homescreen press "menu" then "settings" then "Display" then Uncheck "Auto Adjust Screen Tone"
I must have done this on my S3 and forgot :silly: either way hopefully this fixes it for you.
Click to expand...
Click to collapse
Thanks for trying, but I have searched all the menus and there is not anything like that.

nunyabiz said:
Thanks for trying, but I have searched all the menus and there is not anything like that.
Click to expand...
Click to collapse
The reason I believed it was "Auto Adjust Screen Tone" is because its description is exactly what you describe. Its description is "Save power by adjusting screen tone according to analysis of images". I was assuming it will be in the same place as my S3 which might not be the case.
It should have been in the general phone display settings mmmmm i hope there is a solution as it would annoy me too when i do purchase the 10.1.

it could be possible that the autobrightness jumps too much. do you have it turned on? i use velis and lux (seeing which i like better) to control autobrightness. i don't have the dynamic screen effect on mine and i hate any tablet or phone that does, so i do notice it when a device has it. where others are saying the tablet is too dim, i think it's too bright and never go above 35% and mostly under 20%.

madsquabbles said:
it could be possible that the autobrightness jumps too much. do you have it turned on? i use velis and lux (seeing which i like better) to control autobrightness. i don't have the dynamic screen effect on mine and i hate any tablet or phone that does, so i do notice it when a device has it. where others are saying the tablet is too dim, i think it's too bright and never go above 35% and mostly under 20%.
Click to expand...
Click to collapse
stated in the op, auto brightness is off.

nunyabiz said:
Thanks for trying, but I have searched all the menus and there is not anything like that.
Click to expand...
Click to collapse
Settings> Device> Display> Screen Mode> Adapt display
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

ddavtian said:
Settings> Device> Display> Screen Mode> Adapt display
Click to expand...
Click to collapse
I have that set to standard.

well since i have my screen set low it doesn't have the option to fluctuate - can't go below zero without an overlay. so as a test i turned up the brightness and check out some white backgrounds and then quickly introduce a dark object and it's definitely there. it's very subtle (i only went to 40% to test) but it's there. this is a feature that should NOT be in a device made people who like to draw. fluctuating screen brightness can totally screw things up for a very particular artist.
i hate that you brought this up b/c now i'm gonna start using it at a brighter setting just so i can see the effect more often, lol.

madsquabbles said:
well since i have my screen set low it doesn't have the option to fluctuate - can't go below zero without an overlay. so as a test i turned up the brightness and check out some white backgrounds and then quickly introduce a dark object and it's definitely there. it's very subtle (i only went to 40% to test) but it's there. this is a feature that should NOT be in a device made people who like to draw. fluctuating screen brightness can totally screw things up for a very particular artist.
i hate that you brought this up b/c now i'm gonna start using it at a brighter setting just so i can see the effect more often, lol.
Click to expand...
Click to collapse
Lol, sorry! I see it really bad at about every brightness. The samsung Rep didnt see it at all, or so she says, so I guess some people are more sensative than others.

I have this problem as well
Sorry for digging up an old post.
I recently bought galaxy note 10.1 2014 and I also noticed this behavior when I was viewing pdf files in class today while taking notes.
The screen brightness dimmed very slightly when an imaged shows up in a pdf file.
I thought this happened only in pdf files in Adobe Reader so I tried polaris pdf viewer - same issue, then I tried opening a word document and scrolled through - same issue again. I tried different settings under display and it did not have any effect on it.
So I'm assuming its a software issue and hopefully with an update it should get better I guess.
Anyone else having this issue?

issue
No one else having this issue? I believe this happen in every note out there, just want to confirm this with other people here. It's easy to reproduce, just open a pdf file with a colored image on one page and text on other page and scroll through pages, you should notice a slight dimming of screen.
Thanks

Tbh I have noticed it, I first noticed it on the BBCNews website whenever an image pops up after some text. The screen does dim very slightly, it must be something with the fact that the image is darker so the display will naturally dim a little since theres less white when it displays small text on a white background. Thats my guess but honestly no idea. Also its not something I find too annoying.
Sent from Galaxy Note 10.1 2014 Edition via Tapatalk.

I noticed the same on a P600 32GB
Mainly in browsers and PDF - as said by others - reading from a text to picture or the revert, even with autobrigthness off and Image Mode set to standard or movie, 'adapt display' option ticked off...I still notice a slight adjustment in brigthness.
too bad that samsung integrated this "autothing" somewhere deeper in the layers (firmware,soft, kernel, hardware,?). It loses some value when you use it as an image monitor (video, photography).
My two cents Samsung!