Develop Bugs

[Q] is it possible to increase LCD brightness on Froyo ?

hello,
since the leaked Froyo Updates the screen is a little bit darker then before. Is it possbile to increase the screen brightness on froyo roms ?
Maybe this seems to be the reason Froyo saves more power then Eclair.
any ideas ?
thanks

Just go to settings/display/uncheck auto brightness and move the slider to your liking.

i have already moved the slider to maximum brightesns - but it not as bright as before with Eclair.

yeah. i have noticed this one too. have compared several times the brightness of the eclair to froyo and there is a great difference comparing the 100% brightness

Hmm, strange. I know by default the Froyo version has night mode on by default. I wonder if that has anything to do with it?

Try to use this app;ledefy

Is there someone who has already found a real solution? The thing with the brightness is very, very bad.
The screen goes dark after the vibration on boot progress. The kernel is load before, isn't it? Then normally this should be no problem to increase the screen brightness for the devs?
In hope, greetz from Germany!

echo 1 > /sys/class/leds/lcd-backlight/als
Click to expand...
Click to collapse
or use ledefy

slph said:
echo 1 > /sys/class/leds/lcd-backlight/als
Click to expand...
Click to collapse
How you can set this value after boot? Is there any init folder from where you could run a script?

download terminal emulator and run this command, this should fix the brightness (it did it for me) providing that your phone is rooted!

zakoo2 said:
download terminal emulator and run this command, this should fix the brightness (it did it for me) providing that your phone is rooted!
Click to expand...
Click to collapse
Right, but I won't do that each time after I rebooted my phone.

Great! Works fine....there's a way to auto execute this command on startup?

I don't know how to execute this command on startup but i'm using the ledefy app (ledefy.com). There you can set the increase brigthness fix and autostart on startup.
Furthermore it will give you a nice battery icon in the status bar with 1% steps and various other fixes...

ledefy does not work on CM7
becaus every time i switch of my screen, the brightness will be decreased to the CM7 default brightness. If i switch on my screen i can increas brightness again with ledefy.

What exactly does this line?
"echo 1 > /sys/class/leds/lcd-backlight/als"
Is it setting backlight fix to a MAX or is it increasing the range of control?
If it is increasing the range - is it works for automatic or manuel or both?
What is the default value to go back?

How to tweak light brightness down even further even lower on the S3?

My screen dim level is at 1 and my phone is still too bright. How could I reduce this even further so that sliding my brightness toggle in the notifications bar all the way to low will reduce the brightness even further? Is there not an option or a mod that allows you to pretty much dim your screen to complete darkness?

zetsui said:
My screen dim level is at 1 and my phone is still too bright. How could I reduce this even further so that sliding my brightness toggle in the notifications bar all the way to low will reduce the brightness even further? Is there not an option or a mod that allows you to pretty much dim your screen to complete darkness?
Click to expand...
Click to collapse
screen filter from playstore

harshrp11 said:
screen filter from playstore
Click to expand...
Click to collapse
I see screen filter, the only problem I have with it is its persistent notification. As far as I can see there's no way to remove it. If I could get rid of the persistent notification I would set it to boot with tasker.
Suggestions to remove from notification?

Try lux auto brightness not sure if it has persistent notification or not.

jefferson9 said:
Try lux auto brightness not sure if it has persistent notification or not.
Click to expand...
Click to collapse
I know about lux too, but it's not what I need.
Is there a way to lower the brightness set by the kernel or is this unchangeable?

Download screen calibrator and it works like a charm, you can also remove the icon from the status bar
Sent from my SGH-I747 using xda app-developers app

I looked into this too, I believe the only option is screen filter or anything like it.. which makes no sense to me.
Lower brightness = better for eyes+battery

i386W7 said:
I looked into this too, I believe the only option is screen filter or anything like it.. which makes no sense to me.
Lower brightness = better for eyes+battery
Click to expand...
Click to collapse
Yeah I actually prefer the dropdown notification built into AOKP roms for brightness, but the lowest brightness is too bright. In a room with lights off, reading the amazon kindle before bed is pretty discomforting if you're trying to ease into sleep. Way too bright.
Apparently the only way to do it unless the screen filter author comes up with a way to get rid of that persistent notification/load on startup is to kernel hack, and personally for someone who isn't a developer/programmer, I wouldn't touch an opensource code with a stick

I have the same problem. The lowest brightness is still too high to read something with the lights off.

Hey, I think I actually found something.. do you have cm10? If you do, you can turn on screen filter normally then go to settings > apps > screen filter and uncheck "show notifications". That took away the persistent notification for me.
I don't know if you can do this in aopk.

i have a great solution (with a notification-so i will try your suggestion 386 once my rom is done backing up), but want to make my own personalized "build (apps, tweaks etc) thread". Where can I make it without getting slapped by the mods? In the galaxy s3 general thread or since most of it is can be done on different android phones in the the overall general thread?

[Tutorial] AUTO BRIGHTNESS 100% Working[NO ROOT]

Hello Guys!!
Have anybody missed AUTO BRIGHTNESS feature in SIII MINI because lack of Ambient Light Sensor,
If yes, the don't worry. I have an easy solution for Auto Brightness, Yes you can use Auto Brightness on Galaxy SIII MiNi:victory:
NO ROOT REQUIRED
Download and install These two app from following links:-
Lux Auto Brightness
Tasker
After Installing these apps follow these steps:-
Lux Auto Brightness:-
Go to Lux settings
Tap on Sample Collection
Tap on Select light reading source
Select Camera
Then get back to main settings menu
Tap on Mopdify linked samples
Tap on Luma TAB
Tap on ADD, set brightness (yello bar) to 4% Luma value to 1 and press ADD
Add 3 more links with these values= 35%-70|100%-80|50%-120|
Exit Lux
Tasker:
Open Tasker, tap on Plus Gign(+) on main screen
Tap on Event
Select Display in Event Category
Select Display On in Display Event
A blank screen will appear, do nothing just press BACK Button
TAP on New Task +
Enter Name to task or just tap on tick
A blank screen will Appear, tap on Plus Sign (+)
Select Plugin from action category
Select Lux Plug-in
Tap on Edit Button
Scroll Down and Tick in front of Refresh Backlight brightness? Under Force
Press Done, then press back and back again
Exit Tasker
Thats all work to do, now your dvice have Auto Brightness feature:silly:
To test, just press power button and lock the screen and then cover front camera with finger and press power button again, screen will Light up wait 1-2 seconds, Screen brightness will reduce, remove finger, lock unlock screen and brightness will resume to normal.
I have tested this for full day on my L9 and got no any battery drainage.
You can modify Linked Samples Values to your comfort zone for batter sample values you can also search other XDA forums.
Guys try it and let me know how you feel
if you got any issue please post, I'll try to solve it (Coz m also new to TASKER & LUX so may be it will take little bit time to Solve:fingers-crossed
EDIT: You can uncheck "Presistent notification" in general settings of Lux Auto Brightness, If you think it is draining your phone's battery. This will also disable the annoying Lux icon from notification.
HIT THANKS IF I DESERVE IT

why tasker?
gdjindal said:
Hello Guys!!
Have anybody missed AUTO BRIGHTNESS feature in SIII MINI because lack of Ambient Light Sensor,
If yes, the don't worry. I have an easy solution for Auto Brightness, Yes you can use Auto Brightness on Galaxy SIII MiNi:victory:
NO ROOT REQUIRED
Download and install These two app from following links:-
Lux Auto Brightness
Tasker
After Installing these apps follow these steps:-
Lux Auto Brightness:-
Go to Lux settings
Tap on Sample Collection
Tap on Select light reading source
Select Camera
Then get back to main settings menu
Tap on Mopdify linked samples
Tap on Luma TAB
Tap on ADD, set brightness (yello bar) to 4% Luma value to 1 and press ADD
Add 3 more links with these values= 35%-70|100%-80|50%-120|
Exit Lux
Tasker:
Open Tasker, tap on Plus Gign(+) on main screen
Tap on Event
Select Display in Event Category
Select Display On in Display Event
A blank screen will appear, do nothing just press BACK Button
TAP on New Task +
Enter Name to task or just tap on tick
A blank screen will Appear, tap on Plus Sign (+)
Select Plugin from action category
Select Lux Plug-in
Tap on Edit Button
Scroll Down and Tick in front of Refresh Backlight brightness? Under Force
Press Done, then press back and back again
Exit Tasker
Thats all work to do, now your dvice have Auto Brightness feature:silly:
To test, just press power button and lock the screen and then cover front camera with finger and press power button again, screen will Light up wait 1-2 seconds, Screen brightness will reduce, remove finger, lock unlock screen and brightness will resume to normal.
I have tested this for full day on my L9 and got no any battery drainage.
You can modify Linked Samples Values to your comfort zone for batter sample values you can also search other XDA forums.
Guys try it and let me know how you feel
if you got any issue please post, I'll try to solve it (Coz m also new to TASKER & LUX so may be it will take little bit time to Solve:fingers-crossed
EDIT: You can uncheck "Presistent notification" in general settings of Lux Auto Brightness, If you think it is draining your phone's battery. This will also disable the annoying Lux icon from notification.
HIT THANKS IF I DESERVE IT
Click to expand...
Click to collapse
hello friend
i could not get the point of installing the Tasker additionally.
i am using only Lux and it is enough i think.
so whats the reason of tasker here?? thamx..

scaliskano said:
hello friend
i could not get the point of installing the Tasker additionally.
i am using only Lux and it is enough i think.
so whats the reason of tasker here?? thamx..
Click to expand...
Click to collapse
Hello scalikano,
Good Question .
i am using tasker coz if we use only lux, then it will run periodically in background for light reading. running lux periodically will drain battery and one more reason for using tasker is sometimes androids default task killing system kills lux service, so than lux will stop working until you restart it, tasker helps to keep it alive, so when ever you turn your phones display on tasker and lux will adjust screen brightness to its best....:highfive:

thanx for the update ..friend.
it is a good solution.
i dont have that problem battery draining or task killer issue.
i use lux on wake-up mode (lux only works when u unlock ur screen) n ignore lux in the task killer..thats another solution..thanx

scaliskano said:
thanx for the update ..friend.
it is a good solution.
i dont have that problem battery draining or task killer issue.
i use lux on wake-up mode (lux only works when u unlock ur screen) n ignore lux in the task killer..thats another solution..thanx
Click to expand...
Click to collapse
+1 same here. Though, I'm trying to understand how to use Lux properly, I mean: in a sunny day, outside, I need the brightness at 80%/100%, else I can't see anything on screen. At night time, viceversa, low brightness.
Now: I can set these low/top values, but, what can I do for average Luma values? Am I clear?

first adjust lux on-wake mode with settings wizard in setup.
then go to sample collection select camera and front camera and check ''ignore 0 lux settings''
in general setting, offscreen button backlight should be ON.
fade brightness changes checked,
jitter control checked
manual call brightness checked
persistent notification checked
and widget opens dashboard checked.
now put lux widget on your homescreen.when u click on widget lux dashboard will be open.
in the middle of the dashboard u will see a circle with yellow line to link brightness value to luma value
just press link button to fix ur brightness to that luma value.
it means according to changing environmental brightness u can adjust the brightness value by dragging line forward or back and make a link that luma value and after several times of linking it automatically comes to that brightness u had linked before.
so, no need to add one by one the values in luma.
i use lux like this way.
it is so simple.just link some values e.g. in the room at night light, in the noon outside,
sorry for my bad english i tried to explain in detailed as can as i do.

TY, I'll try your settings! :highfive:
EDIT: why Offscreen button backlight ON? I mean, it keeps softkeys always on, while, to save battery, I always keep them disabled.. uhm?
scaliskano said:
first adjust lux on-wake mode with settings wizard in setup.
then go to sample collection select camera and front camera and check ''ignore 0 lux settings''
in general setting, offscreen button backlight should be ON.
fade brightness changes checked,
jitter control checked
manual call brightness checked
persistent notification checked
and widget opens dashboard checked.
now put lux widget on your homescreen.when u click on widget lux dashboard will be open.
in the middle of the dashboard u will see a circle with yellow line to link brightness value to luma value
just press link button to fix ur brightness to that luma value.
it means according to changing environmental brightness u can adjust the brightness value by dragging line forward or back and make a link that luma value and after several times of linking it automatically comes to that brightness u had linked before.
so, no need to add one by one the values in luma.
i use lux like this way.
it is so simple.just link some values e.g. in the room at night light, in the noon outside,
sorry for my bad english i tried to explain in detailed as can as i do.
Click to expand...
Click to collapse

no it does not mean sofkeys always on.
it means when u are on lockscreen lux will work after u press menu button when on slide or pattern or other lockscreen mode.
otherwise after locking ur screen, brightness will not be increased by lux if u dont check that option and u are not able to see pattern to unlock under sun light.

scaliskano said:
no it does not mean sofkeys always on.
it means when u are on lockscreen lux will work after u press menu button when on slide or pattern or other lockscreen mode.
otherwise after locking ur screen, brightness will not be increased by lux if u dont check that option and u are not able to see pattern to unlock under sun light.
Click to expand...
Click to collapse
Okay, I see, but, actually, if I enable it, it keeps softkeys on, or that happens only to me? That's why I disabled it.

in phone /settings /lockscreen/ adjust it to 6 seconds...no problem.
softkeys will be turned off after 6 seconds and it will not effect lux working

scaliskano said:
in phone /settings /lockscreen/ adjust it to 6 seconds...no problem.
softkeys will be turned off after 6 seconds and it will not effect lux working
Click to expand...
Click to collapse
I've adjusted it to 5 sec (no way to set it at 6 -- ?), yet, softkeys would not switch off, and stay on all the time.. what do I do wrong?

sorry for mistake way...
settings-display-more settings-touch key light duration..6 seconds is there but i just gave it as an example.it does not matter u can turn it ''always off''
---------- Post added at 11:32 PM ---------- Previous post was at 11:29 PM ----------
u can try different ways..lux will work on lockscreen mode if selected in lux settings.
no worry..just play with ur phone.

scaliskano said:
sorry for mistake way...
settings-display-more settings-touch key light duration..6 seconds is there but i just gave it as an example.it does not matter u can turn it ''always off''
---------- Post added at 11:32 PM ---------- Previous post was at 11:29 PM ----------
u can try different ways..lux will work on lockscreen mode if selected in lux settings.
no worry..just play with ur phone.
Click to expand...
Click to collapse
Thank you, pal

Deleted

itsfozzy said:
deleted
Click to expand...
Click to collapse
As you said.. give it a go! I downloaded it for my gt-I8190, it uses front camera as light sensor, it works, I like it.
If so, follow scaliskano's steps. :good:

In the paid version of lux you can use the front camera as a lightsensor. Works like a charm for me. There's a thread dedicated on this subject. Don't have it at hand, just search for it.
Sent from my GT-I8190 using Tapatalk 4 Beta

[Q] Z1compact: getting minimum brightness LOWER

Hello Everyone,
I have a problem with my amami and I doubt I am the only one but for some reason people do hardly complain: the brightness even at lowest possible setting is still too bright.
I had this back when I had original FW and I am having the same issue with CM11 (latest nightlies). Using manual control or auto-brightness doesn't make much difference, i.e. in a totally dark room the ambient light sensor reports 0Lux and the screen is still too bright.
I found a workaround already (the ScreenFilter app that people recommend all over the internet) but it sucks because it heavily reduces the picture quality, i.e. visibly reduces contrast and especially the gray color resolution. And it also doesn't reduce power consumption like real brightness value change would do.
I looked around for possible solutions and there is a trick with writting a new value of current limit to Linux settings (some mA value between 0 and 20 to some max_current file in procfs). And this really helps but also impacts the maximum brightness, the screen is hardly ready in sun light with reduced current.
Is there a silver bullet? I am thinking about writing an app for that but it would require SU permissions and is kinda dirty to implement. Can anyone recommend a better solution?

have you tried the xposed Modul "minimum brightness" ?

Install Lux Brightness. from play store.
You can overboost it or make the screen so dark that you can't even see it.
Another great screen mod is Twilight which basically dims the screen red based on clock so it helps fall sleep faster when using phone before bed.

New Folder said:
Install Lux Brightness. from play store.
Click to expand...
Click to collapse
Yes, another vote for Lux. It lets you set brightness to negative levels, mine is usually around -50%. https://play.google.com/store/apps/details?id=com.vito.lux&hl=en

Vote for Lux here too.
Nothing comes close

camaro322hp said:
Yes, another vote for Lux. It lets you set brightness to negative levels, mine is usually around -50%. https://play.google.com/store/apps/details?id=com.vito.lux&hl=en
Click to expand...
Click to collapse
Thanks for the hint. I tried the Lite version and AFAICS it simply uses the same trick as ScreenFilter and other "sub-zero" regulators, putting an alpha overlay on top of the image stack.
You can identify this kludge easily by looking at the button areas, they don't get darker anymore. And you can see the black level not getting real black, i.e. the power consumption is not reduced.
However, Lux seems to be one of the better toys because of the plugin interface. Unfortunately there is no HW plugin for Sony devices but judging by the quick look at the Nexus-4 plugin (it's open source!!) it should be possible to adopt this method to Z1 as well. So, maybe when someone could eventually implement that.

xposed Modul "minimum brightness" works, i tested it for you. you can make the screen dim to complete black with your normal display brightness slider without grey or black overlay. it just sets down the minimum brightness level to 1 or 0 (default is 10 or 20), so it should also work with enabled auto brightness

chertVdetali said:
I looked around for possible solutions and there is a trick with writting a new value of current limit to Linux settings (some mA value between 0 and 20 to some max_current file in procfs). And this really helps but also impacts the maximum brightness, the screen is hardly ready in sun light with reduced current.
Click to expand...
Click to collapse
As far as i remember, /proc is only used to call upon information, not to set specific values. What you are looking for is placed within /sys.
To be precise in /sys/devices/leds-qpnp-ee125e00/leds/wled:backlight/. There you will find a file called max_current with which you can easily control the brightness and set it to a very low level. Note that this actually dims the screen and not just applies a filter like most apps do...
One drawback is that the value will change again after you restarted the device. I set up a little flow with Automate β that takes care of this for me. I find this solution a lot better than all the screen filter apps.
This is true for CyanogenMod 11 and GreatDevs Kernel. It might be different on Stock. I know that the path for my Nexus 7 is sys/class/leds/lcd-backlight.
I hope this helps you a little bit.

rob rich said:
xposed Modul "minimum brightness" works, i tested it for you. you can make the screen dim to complete black with your normal display brightness slider without grey or black overlay. it just sets down the minimum brightness level to 1 or 0 (default is 10 or 20), so it should also work with enabled auto brightness
Click to expand...
Click to collapse
I am wondering how you can claim that the result is complete black. Calling this black is like saying "TN monitors have good black values" (I know such people, they change their mind quickly when they see my Eizo with a VA panel at night).
No, seriously, the default was already 10 (see config.xml in cm11 repo) and the difference between 1 and 10 is hardly visible. It's still way too bright for work without eye strain in the darkness.
@Wooaarr: thanks, this is apparently the way to go, I just need to find time to configure it. And yes, of course, the file is in sysfs and not procfs (automated typing, when I grew up with Linux there was no sysfs out there ).

chertVdetali said:
I am wondering how you can claim that the result is complete black. Calling this black is like saying "TN monitors have good black values" (I know such people, they change their mind quickly when they see my Eizo with a VA panel at night).
No, seriously, the default was already 10 (see config.xml in cm11 repo) and the difference between 1 and 10 is hardly visible. It's still way too bright for work without eye strain in the darkness.
@Wooaarr: thanks, this is apparently the way to go, I just need to find time to configure it. And yes, of course, the file is in sysfs and not procfs (automated typing, when I grew up with Linux there was no sysfs out there ).
Click to expand...
Click to collapse
when i disable autobrightness and push the slider to the left my screen goes completely off, so you wanna say that screen off isnt black? funny

chertVdetali said:
Thanks for the hint. I tried the Lite version and AFAICS it simply uses the same trick as ScreenFilter and other "sub-zero" regulators, putting an alpha overlay on top of the image stack.
You can identify this kludge easily by looking at the button areas, they don't get darker anymore. And you can see the black level not getting real black, i.e. the power consumption is not reduced.
However, Lux seems to be one of the better toys because of the plugin interface. Unfortunately there is no HW plugin for Sony devices but judging by the quick look at the Nexus-4 plugin (it's open source!!) it should be possible to adopt this method to Z1 as well. So, maybe when someone could eventually implement that.
Click to expand...
Click to collapse
Interesting information, I did not know that. You are correct, the navigation buttons are brighter than the rest of the screen at negative values. I had noticed that before but didn't know why. Works well enough for me though.

rob rich said:
when i disable autobrightness and push the slider to the left my screen goes completely off, so you wanna say that screen off isnt black? funny
Click to expand...
Click to collapse
Well, you claim that it works for me because you tested it on your device. So... yeah, why not, I could say what you mentioned above just following the same logics. :silly:

suddenly brightness is less than usual -- z5 - E6833 UB, Rooted

Team i am on Stock modified kernel [UB] [32.2.A.0.253] [E6833]
recently i have noticed the brightness is less than optimum even if its at fullest. and it just happened suddenly, i rebooted in to recovery, i felt its the same!
before the full brightness used to hurts the eyes! but not any more!
what could be the reason? screen going dead!? should i contact workshop?

When the phone temperature rises the Processor will Reduces screen brightness Until the temperature becomes normal
for that :
1_ you can Reduce the screen brightness manually to 1% or 4% and install //ES File explorer// (with root)
2_ open the app and turn on the root Explorer (from the tools list) and go mount R/W and turn it all to RW
then go to ...
device/sys/class/leds/weld/
3_ open the file that named brightness as text and select ES not editor click on the pen on top and change the number to 4095 then click back button and save it
these will rise brightness to full power
((((sorry for bad language because I don't know to speak English i'm from syria))))

sinchii said:
When the phone temperature rises the Processor will Reduces screen brightness Until the temperature becomes normal
for that :
1_ you can Reduce the screen brightness manually to 1% or 4% and install //ES File explorer// (with root)
2_ open the app and turn on the root Explorer (from the tools list) and go mount R/W and turn it all to RW
then go to ...
device/sys/class/leds/weld/
3_ open the file that named brightness as text and select ES not editor click on the pen on top and change the number to 4095 then click back button and save it
these will rise brightness to full power
((((sorry for bad language because I don't know to speak English i'm from syria))))
Click to expand...
Click to collapse
wow it really didnt know that!
after this post i observed closely the brightness behaviors, at times it glares so much that it burns the eyes and some times it feels less than perfect
now since you have mentioned the temperature factor, i will consider this and notice further!
thanks bro,
yes the fone is rooted / E6833 / .254 / UB / busybox, Xposed are NOT installed.

sinchii said:
When the phone temperature rises the Processor will Reduces screen brightness Until the temperature becomes normal
for that :
1_ you can Reduce the screen brightness manually to 1% or 4% and install //ES File explorer// (with root)
2_ open the app and turn on the root Explorer (from the tools list) and go mount R/W and turn it all to RW
then go to ...
device/sys/class/leds/weld/
3_ open the file that named brightness as text and select ES not editor click on the pen on top and change the number to 4095 then click back button and save it
these will rise brightness to full power
((((sorry for bad language because I don't know to speak English i'm from syria))))
Click to expand...
Click to collapse
Dear sichil,
I would like to check with you. Your instructions will help to modify the actual LCD brightness values at various brightness setpoints or?
I wish to modify the thermal throttling behaviour to ensure that the LCD brightness is not reduced too much especially when I am outdoors.