Develop Bugs

Maybe a Black Wallpaper would improve battery life?

Here you go guys! Join me in this test!
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Oh. My. Gosh. Genius!
sent with 3g courage. better recognize. 4g courage coming soon. stock up on diapers.

In super amoled light background doesn't really affect the battery.
Other than your really conscious about the battery life i suggest turning off the LV wallpaper and replacing it with black.
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JuLes' MostWanted said:
In super amoled light background doesn't affect the battery
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Actually it's been proven otherwise back in November.
Black vs White background at different brightness levels:
http://forum.xda-developers.com/showthread.php?t=1366878
Overview:
Maximum Brightness White Image: 5h00m
Maximum Brightness Black Image: 10h52m
Minimum Brightness White Image: 10h20m
Minimum Brightness Black Image: 10h47m
Click to expand...
Click to collapse

Look forward to you comparison!
Don't surrender to colors!

Amoled works almost the same as plasma. Each pixel illuminates.
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scoobdude said:
Amoled works almost the same as plasma. Each pixel illuminates.
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And brighter images use more power. Sucks manufacturers are limiting power consumption on plasmas by reducing power on bright images.
sent with 3g courage. better recognize. 4g courage coming soon. stock up on diapers.

Umm yeah, welcome to 2009. We all know black colors use less power than white on amoled screens.

RogerPodacter said:
Umm yeah, welcome to 2009. We all know black colors use less power than white on amoled screens.
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^seriously.
Also, who spends so much time looking at their wallpaper (especially a boring, solid color) to notice any difference?

I put black wallpaper I got those ugly black spots in the screen. blah

I used to use a black wallpaper because hey, why not, save on the battery, right?
Then I thought about how often my phone is actually displaying my wallpaper and decided it's a trivial matter. It's only ever a few seconds before I tap on something on my homescreen and it goes away. If I was constantly reading info off of widgets, at length, I'd care about it more.
These days I just load up whatever picture I think I'd like to see every now and then. Although I did like the clear contrast of pure black vs the icons etc.
Edit: Also the test linked to in one of the first replies, worth noting that Minimum brightness, white image is only slightly worse than the black results. Brightness matters more than color. Dial it down and look at whatever colors you like best.

Pssst...download no wallpaper app from market. Its a true no wallpaper display.
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I've never used anything other than black on any mobile I've ever used.

I use a solid black wallpaper, but not to save battery. I just like the way it looks.
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For me black wallpaper does matter coz if i open my phone its like 2 seconds before i launch and app leaving the home screen. ^o^
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I suggest you themes with inverted apps like mine if you really wanna save something, a wallpaper does not saves that much
http://forum.xda-developers.com/showthread.php?t=1615767

Razer(x) said:
I suggest you themes with inverted apps like mine if you really wanna save something, a wallpaper does not saves that much
http://forum.xda-developers.com/showthread.php?t=1615767
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I like mms app because i wanna save battery lol.
That's the app i always use

After switching to black background, my battery have been improved dramatically
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marcusva79 said:
I put black wallpaper I got those ugly black spots in the screen. blah
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Doesn't this happen due to a low res not pure black image being used?
I never had that issue, so unless something is wrong with your display I suggest trying a different image

marcusva79 said:
I put black wallpaper I got those ugly black spots in the screen. blah
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This is what I am using, its nice and dark and looks cool.
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grainy screen.not a warrenty problem?

hi all xda members..as some of you might know that some galaxy nexus as purple tint and/or grainy screen.. well mine has a grainy screen at low brightness then at high brightness my screen looks like it gets burn in.. i sent it for repair and they said they cant see the fault or ''we could not replicate the fault mentioned''
are they stupid or??
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From what I've gathered from reading around, this is the nature of our displays. However there are some mods out, that may help the grain and purple tint.
I think the thread was in general.
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i seen it i think but nothing really about grany screens. its only noticable on white and grey backgrounds.its really annoying...
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I think it is normal for pentile. But I can only notice it on lowest brightness and even then I must admit I kinda like it. Looks a bit like paper and the grain seems to be a common trend now (YouTube background for example)

Oliie23 said:
I think it is normal for pentile. But I can only notice it on lowest brightness and even then I must admit I kinda like it. Looks a bit like paper and the grain seems to be a common trend now (YouTube background for example)
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is there such thing as my grain been wore than yours?? my most noticable app is facebook and play market when on grey background

[email protected] said:
is there such thing as my grain been wore than yours?? my most noticable app is facebook and play market when on grey background
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Well, I've checked play store now and you are right - seems to be noticable on all brightness settings. Still though, it is normal for pentile.

But I think mine is really bad? Or am I just over reacting?
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Gavin mine gets really bad to. But when I am using the Franco kernel and his apk at a certain point it my screen look great. All the whites come out and the greys are way better. ARe rooted?

marcusva79 said:
Gavin mine gets really bad to. But when I am using the Franco kernel and his apk at a certain point it my screen look great. All the whites come out and the greys are way better. ARe rooted?
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Hi..my phone still with the repair crowd but yes I've it rooted usually and on trinity kernel and cm9
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you can use the CM9 gamma values. I can tell you some good ones.

Tell me and I'll try some when my phones back please
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Maybe take some pictures of it when you have it so we can see how bad it is.

Gamma are
Color Multipliers
Red .66
Great .66
Blue .89
Color Gamma Tuning:
Red -10
Green -100
Blue -2
DSS gamma set :
Either 1.2 or 1.4
These bring out the colors way better. You will still get the grainy and purple at 0 brightness. But who looks at there phone at that.

marcusva79 said:
Gamma are
Color Multipliers
Red .66
Great .66
Blue .89
Color Gamma Tuning:
Red -10
Green -100
Blue -2
DSS gamma set :
Either 1.2 or 1.4
These bring out the colors way better. You will still get the grainy and purple at 0 brightness. But who looks at there phone at that.
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Click to collapse
Is this bad for the screen tho?I'll try Monday
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Been using that for a while, while I was using ICS CM9 or AOKP. Now I am on Jelly Bean and I have been using Franco kernel. Screen still looking good.

White looks yellowish

Hey guys, I don't know if its me but my screen is weird. My whites are really off in that they look yellowish.
I'm trying to tinker around in color control on franko kernel updater with the blue, red, and green but it hasn't changed the whites. I having touched the gamma things though..
Anyone know how to solve this?
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stephan001 said:
Hey guys, I don't know if its me but my screen is weird. My whites are really off in that they look yellowish.
I'm trying to tinker around in color control on franko kernel updater with the blue, red, and green but it hasn't changed the whites. I having touched the gamma things though..
Anyone know how to solve this?
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go into gamma and increase blue

You need to adjust the multipliers.

Flash the trinity kernel & admire its beauty.
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Nope, the blue gamma doesn't change it. Everything except the whites became a bit more "white" but the white pixels are not as white as before.
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DaX05 said:
Flash the trinity kernel & admire its beauty.
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+1 for Trinity
Colors look amazing. I was wary at first but from the first boot after flashing the kernel, I fell in love. For me, I have found a significant increase in battery life compared to the stock kernel as well.

stephan001 said:
Nope, the blue gamma doesn't change it. Everything except the whites became a bit more "white" but the white pixels are not as white as before.
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Mbh had it, adjust multipliers.
If you remove red+green or increase blue it'll become more white.
Adjust gamma to remove tint in the shadows after that.
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I'm tinkering in every what way possible. Now I'm thinking its hardware problem. But I'll keep trying.
BTW, I am running Franco 240 kernel. I was on trinity, and it was better, but Franco increases my performance and battery life significantly.
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I have the same yellowish screen, flash Trinity like everyone said and boom, white is white.

I'm using the trinity kernel with the liquid smooth ROM and my screen looks just as good as my coworker's SIII does. It is truly amazing how much better it looks...

Anybody know what the color control setting difference is between the two kernels?
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stephan001 said:
Anybody know what the color control setting difference is between the two kernels?
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Should only be in the defaults, unless....
Check if Franco includes omap gamma (preset tables) over my Contrast.

No it does not good sir..
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morfic said:
Should only be in the defaults, unless....
Check if Franco includes omap gamma (preset tables) over my Contrast.
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Yea they support both omap gamma as well as your contrast settings

I am running liquidsmooth beta1 with Franco 240, the smoothness and battery life is so much better and its not a feeling. I experienced both kernels long enough to know the difference.
So I just need to know how to fix this colour shenanigans. There is just too many possibilities with the options but I haven't stopped trying.
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Franco and Trinity, in my experience, both have good color settings out of the box. Franco's colors look a bit more natural to me, as Trinity's are a little "blue" to my eyes. There are a few other threads with users suggesting various color settings. Get Franco (which you already have, aparently) or Trinity and try out some of the combinations suggested. Some are quite good.
Here's one thread on the subject: http://forum.xda-developers.com/showthread.php?t=1521195
Best of luck

Thanks buddy. I'll try this out and report back.
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App to adjust display color

The greatest weakness to an otherwise nice piece of hardware in my opinion is the OG Pro's blue-tinted display. The display is crisp and everything but there is such an obvious blue tinge when I compare to other phones I have. Does anyone know if there's an app to adjust screen color? There's one app that can allow you to add RGB color to the screen but not adjust. If anyone has any suggestions that would be great. Thanks.

I think you can play with the display settings with trickster mod
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misterpostman said:
I think you can play with the display settings with trickster mod
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Thanks for the suggestion - I've tried it and it doesn't stick or actually make a difference on the screen. I've tried with stock kernel and the modified kernel that's available in the development section.

[Q] White theme is too bright. How can I change it to black?

Hi. I have a SM-P600 and white ui theme hurts my eyes. I need a way to change it to good old black style. With ui I mean settings pages, contacts, notfication panel... My device is rooted and I have xposed. Thx.

Flash a custom rom.
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Orion116 said:
Flash a custom rom.
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I really don't wanna do that. So I came up with a workaround. I'm using tasker to activate screen filter while s note is open and deactivate screen filter when I exit s note.

stellaignis said:
I really don't wanna do that. So I came up with a workaround. I'm using tasker to activate screen filter while s note is open and deactivate screen filter when I exit s note.
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I use lux. It's a paid app but worth it for me.
The UI stays white, but you can set the brightness levels to suit you at different ambient light levels. Made a big difference to eye strain, especially at night.