The goal of this guide is to have very low screen brightness with high contrast. Also the battery consumption is lowered. This guide was made for Slim Bean 4.3, however should work mostly in other roms also:
A) Use Screen Filter https://play.google.com/store/apps/details?id=com.haxor
B) Use black background, gray color for text and dark red color for links http://forum.xda-developers.com/showthread.php?p=45710930#post45710930 This tactic is better than invert rendering, because images are not inverted.
C) Shorten the timeout of soft key leds by modifying file "datadata/com.cyanogenmod.settings.device/shared_prefs/com.cyanogenmod.settings.device_preferences.xml". Change value "backlight_timeout" to 1. Unfortunately disabling the light seems impossible (as far as I know), but making the light duration short helps.
D) This I did not manage to do, but I have a faint idea how to do it. The goal is to decrease the minimum brightness to 0, which has been actually implemented in some roms. The following thread has discussion about this, however I was unable to rebuild the framework-res.apk http://forum.xda-developers.com/showpost.php?p=42281805&postcount=2
Help with D) would be appreciated.
Related
I wanna save energy, so, how do I turn the white background into a black one, and foreground vice versa?
Could someone please help me I'd be very grateful
Dan
There was a black theme here somewhere, look for a thread on WM 5 theme creating.
Note that this changes absolutely nothing battery vise (though it is easy on the eyes and matches my Jamin case color).
The colors LCD displays make no difference in terms of power consumption (there is a blog on this by some MS guy but I really don't remember the link).
If you want to save battery reduce your back-light intensity (Start->Settings->System->Backlight) as this is one of the major battery eaters on the device.
levenum said:
The colors LCD displays make no difference in terms of power consumption (there is a blog on this by some MS guy but I really don't remember the link).
Click to expand...
Click to collapse
Thx found it here.
K. Now there wouldn't be a way to turn this down with any more steps than in the built-in-system, coz I can only turn this down one notch before blackness and then it's still pretty bright. Thanx.
Dan
I've done a quick search for this and nothing came up. Is there a way to change the multiplier used for the auto-backlight? I like the idea of it adjusting to the local brightness, but I find that in all lighting conditions it's just a little too bright.
try Lumos
or G-Light
both are Complete and customizable Auto-Backlight replacements
just picked up the tab about an hour ago, and just started playing with it... so far, so good
the one thing that stuck out at me so far is the color... it's at least 300-500K too warm, and waaaaaay to vibrant...
is there anyway to tone it down a bit ?
I couldn't find a way to adjust/calibrate the color on the device. I wanted my photos to look correct ... so I created an action in Adobe Photoshop that correctly adjusts the photos before I download them to the SGT 10.1.
Below is a copy of a post I made on the post processing forum on fredmiranda.com:
A little work allowed me to create a Photoshop action that will take images from my normal calibrated NEC 2690 work environment and apply a transform that preps them for use on the Galaxy Tab 10.1. In case anyone needs to get images looking good on a tablet, here is what worked for me.
In Photoshop, I created three adjustment layers.
1. Hue/Saturation - Reduced saturation (this was to overcome the highly saturated LCD on the Samsung).
2. Curves - I adjusted the individual RGB channels in the curves adjustment layer to get the right color balance on the tablet.
3. Exposure/Gamma - I reduced the exposure slightly and adjusted the gamma value to offset the gamma on the tablet.
Then resized the image for the small screen and applied appropriate sharpening.
I standardized on using sRGB for output. I left the original images intact ... this action can be used to create a a custom set of images for display on the tablet.
The good news ... I ended up with a beautiful tool for sharing images.
UCSB said:
I couldn't find a way to adjust/calibrate the color on the device. I wanted my photos to look correct ... so I created an action in Adobe Photoshop that correctly adjusts the photos before I download them to the SGT 10.1.
Below is a copy of a post I made on the post processing forum on fredmiranda.com:
A little work allowed me to create a Photoshop action that will take images from my normal calibrated NEC 2690 work environment and apply a transform that preps them for use on the Galaxy Tab 10.1. In case anyone needs to get images looking good on a tablet, here is what worked for me.
In Photoshop, I created three adjustment layers.
1. Hue/Saturation - Reduced saturation (this was to overcome the highly saturated LCD on the Samsung).
2. Curves - I adjusted the individual RGB channels in the curves adjustment layer to get the right color balance on the tablet.
3. Exposure/Gamma - I reduced the exposure slightly and adjusted the gamma value to offset the gamma on the tablet.
Then resized the image for the small screen and applied appropriate sharpening.
I standardized on using sRGB for output. I left the original images intact ... this action can be used to create a a custom set of images for display on the tablet.
The good news ... I ended up with a beautiful tool for sharing images.
Click to expand...
Click to collapse
thanks
i guess that's the workaround...
not sure i like having to work around the color issue, but i guess it's better then sitting in front of a booker explaining why the model looks like she just took a bath in orange juice
I think turning off Auto adjust screen power in the screen settings helps the reds a little. There is also an app in the market that will let you adjust the RGB but for the life of me I can't remember what it is called. I uninstalled it because it made the launcher laggy but other than that it worked OK.
Found it: color filter service is the app. Its 99 cents.
jtseidner said:
Found it: color filter service is the app. Its 99 cents.
Click to expand...
Click to collapse
will definitely try this app...
rgb controls would be ideal, and will allow me to use a colorimeter...
thanks
VARIABLES AND CONDITIONS IVE USED.
For using an indicator to point out wind direction. Change "10" in [ar][ar/] to move indicator in or out.
[ar]10[/ar]
[r]#WCWDIR#[/r]
[as]#WCWDIR#[/as]
For adding a low volt warning. Change 25 to the voltage you want warning color to show. First color code is warning color, second is normal color. The two "•" represent the icon the variable is used for. If written using rich text, the • would be what changes color. In fact, i use that method for warning lights on some skins. You can also write text using rich text. Reqular text does not change colors.
$#BLEVN#!>25?•:•[c]ffff0000[/c]:?sBLEVN#!<=25?•$[c]ff000000[/c]
For a fully charged indicator. It is curently set to be transparent when less than 100v and green when charged. I use it as a tiny indicator light. You can change the colors, and if using rich text, you can change the •:• to say for instance, Draining:Charged, then assign colors.
$#BLEVN#!=100?•:•[c]ff01d522[/c]:?sBLEVN#!<=100?•$[c]00ffffff[/c]
For using a needle for a thermometer. Im still trying this one out. Sometimes it seems off. Maybe you can check it. Again, adjust ar for piviot point.
[ar]18[/ar]
[as]$(100/20*#WCTEMP#/1)$[/as]
[r]$(100/20*#WCTEMP#/1)$[/r]
I hope to have more soon. Im new at this so im learning as I go.
ATTENTION: IF YOU HAVE ANY PROVEN CONDITIONALS OR VARIABLES, PLEASE POST A COMMENT.
est.mcmlxxvii
Hello, is there any way to change the screen temperature of my device after rooting it? The blue filter of this tablet is very bad, as it does not change the relative values of the colors, but overlays a layer of color over the entire screen, thus spoiling the contrast and making the black colors horrible.
If you can provide any information about this, I would really appreciate it.