Database Develop

[Q] SAMOLED Screen Brightness

What can I do to reduce minimal value of the brightness my SGS screen?
waybe exist some patch or fix?

Settings>Display .... :|

I'm also interested in this - minimum brightness is simply too bright in complete darkness.

Voodoo is the only solution.
http://project-voodoo.org/

Toss3 said:
Voodoo is the only solution.
http://project-voodoo.org/
Click to expand...
Click to collapse
I wish too sometimes brithness display use under 5%, to complet dark.
Must be something more, some codes, or some comand in root mode
Any help?
Regards

Profiles app in market can get it down to 7%
Sent from my GT-I9000 using XDA App

Screen filter is working pretty well, and you can reduce brightness to complete dark if you want (except the status bar). One annoying bug is that toast messages are not shown, only after disabling it ...
I am not sure if it has an effect onthe battery usage, but i guess yes if i am right about how amoledworks ...
Sent from my GT-I9000 using XDA App

Tip: brightness level (from CurveFish) via Android market goes to 0% , although not completely dark but works fine.

Brightness level does indeed allow you to select 0% but when I do that, the brightness setting in the application Extended Controls" will go from 2% to 4%
so "Extended Controls" allows you to select 2% as a minimum but this would actually be -2% in "Brightness level".
I could also not see any noticable difference between these two.
Does screen filter actually reduce the brightness or does it rather change the LUT?
It looks like it's just changing the color values to a 'more black' level than reducing the actual light-output.

Screen solution to improve the "whites" ?

Hi guys!
Sorry, its another screen thread. However, Im not enquiring about the screen blackness. Im looking to find out if there is a way to make the background a brighter/crisper white? I notice this when surfing on Goolge or emailing where the background is mainly white.
I never had this problem with my GS1, but the Notes white seems to be dull, like egg shell white.
Any apps or setting to improve this? Thanks!

Part of the whole screen lottery process, some units produce better whites that others.
Or you can goto the settings and under display disable automatic power saving something for the screen, it allows whites to go full blast at the current brightness level.

The stock browser also dims the screen (by default IIRC).
More light == less battery!

EarlZ said:
Part of the whole screen lottery process, some units produce better whites that others.
Or you can goto the settings and under display disable automatic power saving something for the screen, it allows whites to go full blast at the current brightness level.
Click to expand...
Click to collapse
too add up, change screen display to dynamic and u will see the diff in white.

nameejokerx said:
too add up, change screen display to dynamic and u will see the diff in white.
Click to expand...
Click to collapse
Hi how do you change it to dynamic? I dont see that setting

markmessier8888 said:
Hi how do you change it to dynamic? I dont see that setting
Click to expand...
Click to collapse
Settings > Display > Screen Mode > Dynamic

Thread Moved To Q&A​
All questions belong in the Q&A Section!​

EarlZ said:
Settings > Display > Screen Mode > Dynamic
Click to expand...
Click to collapse
Nope the setting isnt there wth???

markmessier8888 said:
Nope the setting isnt there wth???
Click to expand...
Click to collapse
are you on stock rom? im on darky rom and it has the setting for it

Hieuy said:
are you on stock rom? im on darky rom and it has the setting for it
Click to expand...
Click to collapse
I installed this file:
Tegrak-Kernel-Build-32-for-SHV-E160S-FA09.recovery.tar
from here:
http://pspmaster.tistory.com/181

[GUIDE][FIX] Nvidia PRISM/smartdimmer - fix screen washout after watching videos

THE PROBLEM
To save battery while playing video Tegra intelligently decreases the backlight while increasing color brightness and contrast. Because it monitors on a frame by frame basis the changes are often unnoticable. You basically end up with the same displayed image using less backlight.
Unfortunately it seems to get stuck even after you leave the video and the changes are very noticeable as the changes were specific to the video frame you just left and not your homescreen.
This also may be the cause of some ghosting issues and for some it seems to eliminate any ghosting problems for them.
MANUAL FIX
(will reset at each reboot)
In terminal -
(You may need to type "su" and press enter before entering these commands)
To turn it off
echo "0" > /sys/devices/tegradc.0/smartdimmer/enable
To change how aggressive it is (untested)
echo "#" > /sys/devices/tegradc.0/smartdimmer/aggressiveness
Note: battery life while watching videos WILL decrease if you turn it off or decrease the aggresiveness
AUTOMATIC FIX
Trickster Mod
- has the ability to disable PRISM and set it to disable on boot.
N7scripts.rar
- A collection of scripts compiled by hamdir which, in conjunction with Script Manager (available in the market) will allow you to toggle smartdimmer/PRISM on and off at will.
- You can also use script manager to toggle it at boot if you want.
- Also includes a script to disable 3D scaling which may improve 3D gaming performance (untested)
Thanks to hamdir for his pack of scripts and for convincing me to make a new post for these fixes.

I may use this for other sysfs tweaks... mine for now.

Thanks. Easier to save and flash then manually entering in these values each time I crackflash.
If the T3 can increase the color saturation and gamma while decreasing backlight, wonder if we can increase the colors while leaving the backlight alone. All of the N7s I've played with have a dull washed out look with a warm tone for whites.
Sent from my Nexus 7 using xda premium

does flashing the .zip just delete the PRISM file? cuz when I manually enter the command after flashing it via CWM it doesn't allow me to any more.
"
ROM may flash stock recovery on boot? Fix?
No
.
.
.
.
.
Yes - Disable Recovery flash
.
.
.
+++ Go back +++
which reboots if you "go back" what is this?
-------------------------------------------------------------------------
How do you set up the script? I have script manager and the Scrip.rar saved onto my SD card. Thanks in advance!

player911 said:
Thanks. Easier to save and flash then manually entering in these values each time I crackflash.
If the T3 can increase the color saturation and gamma while decreasing backlight, wonder if we can increase the colors while leaving the backlight alone. All of the N7s I've played with have a dull washed out look with a warm tone for whites.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Messing with the kernel I haven't had any luck. You could ask Morfic. He might be able to make something happen.
Also prism increase color BRIGHTNESS for the most part (you said saturation). That's why the homescreen ends up looking washed out and bright and not oversaturated when PRISM fails to shut off.
Sent from my Nexus 7 using xda premium

sharp2G said:
does flashing the .zip just delete the PRISM file? cuz when I manually enter the command after flashing it via CWM it doesn't allow me to any more.
"
ROM may flash stock recovery on boot? Fix?
No
.
.
.
.
.
Yes - Disable Recovery flash
.
.
.
+++ Go back +++
which reboots if you "go back" what is this?
-------------------------------------------------------------------------
How do you set up the script? I have script manager and the Scrip.rar saved onto my SD card. Thanks in advance!
Click to expand...
Click to collapse
There's no prism file. These tweaks are changing a sysfs value. There's no file. The flashable zip adds an init.d file that runs the manual command at every boot.
In your case CWM is complaining about a file that flashes stock recovery on boot and overwrites CWM. These are completely different things. Let CWM "disable recovery flash" and you'll be good to go.
Sent from my Nexus 7 using xda premium

This is awesome. It definitely needs to be implemented in a ton of ROMs

so does flashing this decrease battery life when watching videos? im confused by op..

awesome post, thx!
yes this fix, completely get rid of the grey levels washout issues!!! and greatly improves the quality of the display, it will cost some battery life, but any boost to this average screen is welcome
now about ghosting it did reduce it a lot but sadly it didn't kill it, i still get the very random occasion of faint LCD ghosting
finally we really need to find out a way to fix the stupid low saturation, in particularly the greens are very low
google....these screen issues, lack of tablet UI and launcher rotation issues, makes want to smash it through the wall

Nice find. Hopefully Google/Nvidia/Asus will fix this in an update.

Thank you very much for this! While I don't own a Nexus 7, I *do* own an Asus TF700T and this problem also exists on it. On the TF700, this "mode" is active all of the time, no matter what you are doing and it is *very* noticeable and distracting, especially when watching videos (but it *is* noticeable everywhere else as well).
Disabling this "Feature" makes the problem go away. At the very least, you can enable/disable as needed now.
Thanks again!
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

Hello from Germany,
my Nexus is unlocked and rooted
Terminal:
su
cd /sys/devices/tegradc.0/smartdimmer
./enable
"Permission denied"
change user rights:
chmod 744 enable
(old settings are 644)
./enable
./enable[1]: 1: not found
so where is my fault?

ever since i disabled this gamma destroying feature and my screen keeps getting better and better
starting to fall in love with it really

Riquelme10 said:
Hello from Germany,
my Nexus is unlocked and rooted
Terminal:
su
cd /sys/devices/tegradc.0/smartdimmer
./enable
"Permission denied"
change user rights:
chmod 744 enable
(old settings are 644)
./enable
./enable[1]: 1: not found
so where is my fault?
Click to expand...
Click to collapse
you didn't even enter the command line properly...
Sent from my Nexus 7

sharp2G said:
you didn't even enter the command line properly...
Sent from my Nexus 7
Click to expand...
Click to collapse
Care to post how it should be done then? Might be a little bit more helpful
Also, does this affect battery life overall? Or just while watching movies?

Riquelme10 said:
Hello from Germany,
my Nexus is unlocked and rooted
Terminal:
su
cd /sys/devices/tegradc.0/smartdimmer
./enable
"Permission denied"
change user rights:
chmod 744 enable
(old settings are 644)
./enable
./enable[1]: 1: not found
so where is my fault?
Click to expand...
Click to collapse
You do not "run" the "enable" file. You need to do this:
echo "0" > /sys/devices/tegradc.0/smartdimmer/enable
or
echo "0" > enable (if you are already in that dir).
That will disable the SMartDimmer "feature". Echoing a "1" will re-enable it. I have not noticed any battery life difference....
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

espionage724 said:
Care to post how it should be done then? Might be a little bit more helpful
Also, does this affect battery life overall? Or just while watching movies?
Click to expand...
Click to collapse
yes its an LCD battery saving feature and so disabling it will definitely reduce battery life
choose between battery life or quality display

hamdir said:
yes its an LCD battery saving feature and so disabling it will definitely reduce battery life
choose between battery life or quality display
Click to expand...
Click to collapse
Yes as said in the OP smart dimmer analyzes the video frames and determines whether it can lower the backlight while increasing the color brightness and maintain almost the same image. Lower backlight = better battery life.
Sent from my Nexus 7 using xda premium

After I turned off the dimmer, the screen got a little brighter, so I manually turned down my normal 40% brightness to 30% brightness. So in the end I don't think I'm losing any battery life at all.

Ravynmagi said:
After I turned off the dimmer, the screen got a little brighter, so I manually turned down my normal 40% brightness to 30% brightness. So in the end I don't think I'm losing any battery life at all.
Click to expand...
Click to collapse
I agree - I think any battery life reduction will be *very* minor for most people... I certainly haven't noticed any difference...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

min brightness in build.prop

hi there.
l have noticed a min brightness parameter in the build.prop file which is set to 15. will Changing it to 0 make the screen go black at min level?
rooted 404

There are many such apps like screen filter to do so

these apps seem to interfere in lot of other phone operations. cuz I have read a lot about screen filter issues... wat does this parameter in build prop do

rajsekhar.300 said:
There are many such apps like screen filter to do so
Click to expand...
Click to collapse
Its better to use build.prop if it works, why use an app to change it, it will run in background and drain battery
@OP, it may be dangerous to change it to "0" as if it turns to min brightness you may not be able to change it again due to invisibility.
try it when you have to flash another rom.

nokiamodeln91 said:
hi there.
l have noticed a min brightness parameter in the build.prop file which is set to 15. will Changing it to 0 make the screen go black at min level?
rooted 404
Click to expand...
Click to collapse
Of Course YES....If you would set the brightness to lower level in settings>display>brightness.

sahilarora2003 said:
Of Course YES....If you would set the brightness to lower level in settings>display>brightness.
Click to expand...
Click to collapse
I have tried it..
changed the default from 15 to 0..
earlier i was on min brightness..( slider full left) > screen not black
after changing the build.prop value .> i checked settings in display and the slider can be moved further to the left but does not have any effect on the screen... the brightness on screen stays the same...

Where is the thermalmanager.xml

I would like to edit the screen's brightness settings
When i Looking through the ROOT BROWSER
Where is the thermalmanager.xml ?

david azzz said:
I would like to edit the screen's brightness settings
When i Looking through the ROOT BROWSER
Where is the thermalmanager.xml ?
Click to expand...
Click to collapse
In /system/etc
Sent from my Xperia Z1 using XDA Free mobile app

I solved the problem myself
in etc
file sysmon.cfg
I edited there lighting values
So that the temperature does not affect the intensity of light
And it works perfectly
now when the device heats up the screen remains bright
There are entries starting from 51 up to 255
I changed most of them to 255
I lower and gradually decrease