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...
Related
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.
Sorry for my english..
when I switch from an app with black screen (notification bar xda app etc etc) to a bright one.. Like whatsapp I see a strange thing... There is less contrast for 0.5sec then contrast is perfect and all is normal...
I don't know if you understand what I mean...
Is this normal? Or is a fault display?
Happens with stock and cyano... Full brightness and at lowest brightness...
thx for the replay
drigerott said:
Sorry for my english..
when I switch from an app with black screen (notification bar xda app etc etc) to a bright one.. Like whatsapp I see a strange thing... There is less contrast for 0.5sec then contrast is perfect and all is normal...
I don't know if you understand what I mean...
Is this normal? Or is a fault display?
Happens with stock and cyano... Full brightness and at lowest brightness...
thx for the replay
Click to expand...
Click to collapse
Thermal throttling is normally given as the answer to this.
Thanks for the fast replay... Then I must change my device? Or it'snormal
drigerott said:
Thanks for the fast replay... Then I must change my device? Or it'snormal
Click to expand...
Click to collapse
Its normal, but there are ways to change the way it does it, I am not an expert but if you root you can start to cange values. Search for thermal throttling values and you will hit a good thread about.
Yes I have root.. But I didn't understand.. For thermal throttle you mean cpu? Or even the display?
cause I don't have problem with multitask or other.. Only this strange problem that image quality is not perfect when switching to dark image to bright one.. But for less then a second.. But is frustrating and strange
drigerott said:
Yes I have root.. But I didn't understand.. For thermal throttle you mean cpu? Or even the display?
cause I don't have problem with multitask or other.. Only this strange problem that image quality is not perfect when switching to dark image to bright one.. But for less then a second.. But is frustrating and strange
Click to expand...
Click to collapse
as i said i am not an expert, but if you search in this forum you will find other threads that will give you information on which files to modify and how to do it...
gregbradley said:
as i said i am not an expert, but if you search in this forum you will find other threads that will give you information on which files to modify and how to do it...
Click to expand...
Click to collapse
ok i found some 3d about termal throttle and is not my problem.. i tried different mod but nothig...
i uploaded a video to show my problem ...
see the contrast change?
is not brightness...it's contrast that changes...
Yes, a have this effect too. I`ve changed brightness values at system/etc/sysmon.cfg, to a maximum values, after that screen doesn`t changing brightness when device is more hot, but this effect like in this video, is still exists! This contrast shading are not a termal throttling, this is something else, i don`t know exactly what it is.
i'm not alone then...
with cyanogenmod is so more evident...
tomorrow i'll turn on another one in my shop and see if is all xperia t like this...
anyway if some other has this strange problem, plz post here ^^ (maybe is a software fault)
Maybe a refresh issue?
when i scroll a page on black background with white txt.. the txt becomes greysh... if you scroll slowly remains white... happens to you too?
drigerott said:
Maybe a refresh issue?
when i scroll a page on black background with white txt.. the txt becomes greysh... if you scroll slowly remains white... happens to you too?
Click to expand...
Click to collapse
I don`t think it`s a refresh rate, but maybe i`n wrong.
And, yes, i have the same issues, and the screen is shading and becomes bright again all the time. Especially this happening when i try to open something or to enter at one of the bookmarks of phone menu, and when the phone "thinking", screen is shading, but then it becomes brighter again. I`m reaaly don`t know what it ies, but it`s not because of a thermal, 100%! I already changed the values of a brightness. I`m sure that all Xperia T phones are with the same issues, it`s bacause of a something in soft.
It has nothing to do with gpu.
Here is data sheet for AS3676 - www1.futureelectronics.com/doc/AUSTRIAMICROSYSTEMS/AS3676.pdf
And here is what DLS is from the data sheet -
8.4.9 DLS - Dynamic Luminance Scaling Input
The pin GPIO1/DLS can be used for dynamic backlight scaling input. Dynamic backlight scaling is used to reduce the power of the backlight especially when showing dark picture contents on the display. The control unit to operate DLS is the display processor sending a PWM signal to the AS3676 and in parallel changing the display content to compen- sate for a reduced brightness backlight.
DLS can be turned off in /system/etc/pre_hw_config.sh -
echo 0 > /sys/class/leds/led_1-lcd/use_dls
echo 0 > /sys/class/leds/led_2-lcd/use_dls
Is it save to turn DLS off ?
Sent from my LT30p using xda app-developers app
peetr_ said:
It has nothing to do with gpu.
Here is data sheet for AS3676 - www1.futureelectronics.com/doc/AUSTRIAMICROSYSTEMS/AS3676.pdf
And here is what DLS is from the data sheet -
8.4.9 DLS - Dynamic Luminance Scaling Input
The pin GPIO1/DLS can be used for dynamic backlight scaling input. Dynamic backlight scaling is used to reduce the power of the backlight especially when showing dark picture contents on the display. The control unit to operate DLS is the display processor sending a PWM signal to the AS3676 and in parallel changing the display content to compen- sate for a reduced brightness backlight.
DLS can be turned off in /system/etc/pre_hw_config.sh -
echo 0 > /sys/class/leds/led_1-lcd/use_dls
echo 0 > /sys/class/leds/led_2-lcd/use_dls
Click to expand...
Click to collapse
great find.. any way yesterday i turned on 5 new xperia t in my shop and all do like mine... that is DSL like peetr say..
but the annoying thing is that on cm10 (that all the ui is gray/dark) DSL is too much visible...) now i'll try to disable it.. i'll report if works
EDIT: still the same..
I don't get how to turn DLS off, what value should i change to turn it off ?
Sent from my LT30p using xda app-developers app
you must edit the file in /system/etc/pre_hw_config.sh
with root explorer or similar and change thise line: (0 instead of 1)
echo 0 > /sys/class/leds/led_1-lcd/use_dls
echo 0 > /sys/class/leds/led_2-lcd/use_dls
0 instead of 1 , and what should i set instead of 2 ? 0 too ?
And, is this save ???
Sent from my LT30p using xda app-developers app
Finally, this will have effect or no?
Because maybe we all have this issue.
Sent from my LT30p using xda premium
all xperia t works like i posted in the video (infact i tried 5 new xperia t all the same)
but that mod is not working.. for me is still the same..
DennisDD78 said:
0 instead of 1 , and what should i set instead of 2 ? 0 too ?
And, is this save ???
Sent from my LT30p using xda app-developers app
Click to expand...
Click to collapse
this is stock
echo 1 > /sys/class/leds/led_1-lcd/use_dls
echo 1 > /sys/class/leds/led_2-lcd/use_dls
change in to this:
echo 0 > /sys/class/leds/led_1-lcd/use_dls
echo 0 > /sys/class/leds/led_2-lcd/use_dls
but i see no difference..
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
Hello, some one please guide me so i can reduce the min brightness in lollipop, even the lowest is too bright and hurts my eyes at night,
I want to change settings in the rom and dont want to use apps
Take a look at this thread: http://forum.xda-developers.com/showthread.php?t=2893061 is for KK but I think is almost the same for LP
DorianX said:
Take a look at this thread: http://forum.xda-developers.com/showthread.php?t=2893061 is for KK but I think is almost the same for LP
Click to expand...
Click to collapse
Thabks, i tried it already and searched all what i could get from google, still nothing works and most mods need custum kernel or patching service jar which is a bit of a head ache of steps
If i could mod build prop or a sys file
My other phones where already dim at low or i could mod their brightness throu build prop or lcd min value but none is possible on this phone
Gamer4Life said:
Hello, some one please guide me so i can reduce the min brightness in lollipop, even the lowest is too bright and hurts my eyes at night,
I want to change settings in the rom and dont want to use apps
Click to expand...
Click to collapse
#!/system/bin/sh
#night mode
echo 1 > /sys/class/leds/wled:backlight/max_current
Can be used as script or via terminal emulator
If you need more brightness change value after echo
My value>
1 for lowest
3 for normal
25 for max
Yenkazu said:
#!/system/bin/sh
#night mode
echo 1 > /sys/class/leds/wled:backlight/max_current
Can be used as script or via terminal emulator
If you need more brightness change value after echo
My value>
1 for lowest
3 for normal
25 for max
Click to expand...
Click to collapse
Explain little more please?
Okay, fir now i lowered the max current, now the display is really nice and dim how just how i like it
But max brightness is very low now, only if i could only changr thr min value
You can use apktool to decompile framework-res.apk and change the lcd backlight related numbers in /res/values/ files. The lowest setting that I can still see my screen was 2. The lowest manual setting changes but the adaptive brightness doesn't go to the new minimum. But sometimes the framework-res.apk doesn't rebuild properly and you need to restore with recovery and ADB.
Gamer4Life said:
Okay, fir now i lowered the max current, now the display is really nice and dim how just how i like it
But max brightness is very low now, only if i could only changr thr min value
Click to expand...
Click to collapse
Just change value to 25
But you need change this value every time each reboot.
Not a permanent, but a handy solution :3
For me, I made 3 script as widget (in small app), so I can change brightness value as I like.
Yenkazu said:
Just change value to 25
But you need change this value every time each reboot.
Not a permanent, but a handy solution :3
For me, I made 3 script as widget (in small app), so I can change brightness value as I like.
Click to expand...
Click to collapse
I will be grateful if you share with us how to make these shortcuts in small app menu.
Also which setting do you use for night?
For me i tried 3 and i like it. My eyes are very sensitive to light and will make them dry and bit sore
Little background: somewhere in kernel code or some other core module of the operation system manufacturers or ROM creators set minimum brightness value for the device. This value was in some of my other devices called min_brightness. I remember faintly that I was able to set the value by running some script in Init.d. Unfortunately I did it several years ago for my other device and cannot remember the details.
The minimum brightness in Colt OS is 31 and seems to be similar other roms, which I tried.
Another option to set the value is Xposed module called Minimum Brightness. Unfortunately it has zero effect on my device. forum.xda-developers.com/xposed/modules/mod-minimum-brightness-t2993161/amp/
Another option is to use app called Brightness Tweak, which does its job somewhat but the result is not exactly desirable. The problem is that it makes the brightness curve not smooth and setting semi-bright values is impossible. It is however able to set the value to 1. https://forum.xda-developers.com/android/apps-games/app-brightness-tweak-t3339579
By the way, I find screen filter apps in adequate because they reduce contrast and add complexity to setting the brightness. Setting minimum brightness affects swipe status bar and brightness sliders as well as auto brightness functionalities. In addition MX Player.
wwwwe said:
Little background: somewhere in kernel code or some other core module of the operation system manufacturers or ROM creators set minimum brightness value for the device. This value was in some of my other devices called min_brightness. I remember faintly that I was able to set the value by running some script in Init.d. Unfortunately I did it several years ago for my other device and cannot remember the details.
The minimum brightness in Colt OS is 31 and seems to be similar other roms, which I tried.
Another option to set the value is Xposed module called Minimum Brightness. Unfortunately it has zero effect on my device. forum.xda-developers.com/xposed/modules/mod-minimum-brightness-t2993161/amp/
Another option is to use app called Brightness Tweak, which does its job somewhat but the result is not exactly desirable. The problem is that it makes the brightness curve not smooth and setting semi-bright values is impossible. It is however able to set the value to 1. https://forum.xda-developers.com/android/apps-games/app-brightness-tweak-t3339579
By the way, I find screen filter apps in adequate because they reduce contrast and add complexity to setting the brightness. Setting minimum brightness affects swipe status bar and brightness sliders as well as auto brightness functionalities. In addition MX Player.
Click to expand...
Click to collapse
Try to use "ScreenDim" app
Thanks for the suggestion. I tried the app, but in my opinion the brightness adjustment method is very convenient. The is no slider in notification or sliding status bar. Also the min brightness is not adjusted globally so other brightness adjustment method are unaffected.
Hi, @wwwwe did you actually solve the problem?
Partha Dip said:
Hi, @wwwwe did you actually solve the problem?
Click to expand...
Click to collapse
No I did not.
wwwwe said:
No I did not.
Click to expand...
Click to collapse
Have you tried light control app?
No + the phone is broken already. It wont keep charge anymore.