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Brightness lower limit?

I was trying to lower the brightness very low to test how it would affect battery drain and it seems that the phone won't let 3rd party apps lower the brightness lower than what you can set it to, in the phone's settings. I tried an app called timerrific that lets you schedule various settings changes, but the phone seems to be overriding it. When I set the brightness to go down to 15% via the app, it does go very dim, but then immediately bounces back up to lowest level the phone's settings let's you set it at. Also, I had auto brightness off and the power saving mode off.
Has anyone been able to get the phone to go to very low brightness?

Thats a good question and would like the answer too... to me, the lowest brightness which must still HOG the battery as sometimes it seems to drain very fast with usage (and I have it on the lowest setting)... seems overly bright. I would without a doubt use it at a lower brightness to conserve energy depending on what I was doing at the time.

hey maybe its just the screen that makes it look bright

labbu63 said:
hey maybe its just the screen that makes it look bright
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Not sure what you mean? For example, if I set the brightness to go down to 5% through the app Timeriffic, the screen will dim down to where I can barely see anything, but then it immediately raises back up to the lowest setting you can set in the phone's normal settings, which seems to me to be about 25-30%.

Yep
labbu63 said:
hey maybe its just the screen that makes it look bright
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Click to collapse
This is actually correct, the screen is what makes the "Automatic" brightness setting on the SGS phones look brighter than their LCD brethren. As we all know, currently all AMOLED displays use some kind of Pentile Matrix. All HTC devices (The N1 included) currently use RG:BG Pentile Matrix.
Do a google search on: "RGBG Pentile" and Samsung's site details it.
The SAMOLED display Samsung has made uses a new Pentile Matrix called RGBW:
Do a google search on: "nouvoyance" and it's the first site (sorry for the odd instructions, won't let new users post links )
Using the new RGBW, a white subpixel is introduced on top of the standard RGB stripe. From my reading, this allows the screen to achieve the same resolution to the eye with 33% less subpixels and is a brighter display in the process.

Asori said:
This is actually correct, the screen is what makes the "Automatic" brightness setting on the SGS phones look brighter than their LCD brethren. As we all know, currently all AMOLED displays use some kind of Pentile Matrix. All HTC devices (The N1 included) currently use RG:BG Pentile Matrix.
Do a google search on: "RGBG Pentile" and Samsung's site details it.
The SAMOLED display Samsung has made uses a new Pentile Matrix called RGBW:
Do a google search on: "nouvoyance" and it's the first site (sorry for the odd instructions, won't let new users post links )
Using the new RGBW, a white subpixel is introduced on top of the standard RGB stripe. From my reading, this allows the screen to achieve the same resolution to the eye with 33% less subpixels and is a brighter display in the process.
Click to expand...
Click to collapse
Good explanation, but are saying that no you can't dim it to low levels because it makes it look brighter than it is? If so, I don't buy it. I see it being dimmed to a low level. It just doesn't stay there.

Aldiko reader can get the screen even more dim
Sent from my SAMSUNG-SGH-I897 using XDA App

Also since there is less air gap in the new display, it is brighter.
Sent from my SAMSUNG-SGH-I897 using XDA App

This is just me speculating, but I'm thinking maybe the brightness setting is universal to android devices, except that it's calibrated to normal lcd. So the same voltage(or however they regulate the display brightness) on an LCD will look brighter on the Super AMOLED. For me, the dim setting on the auto-brightness seems too bright.

One thing I've noticed is I can take the brightness down to its lowest setting and it still seems bright..however on almost every phone I've used its like this.
The weird thing is on the Captivate I can open the browser, men then scroll down to settings and it has a brightness toggle there that takes it lower.

nbohmer said:
One thing I've noticed is I can take the brightness down to its lowest setting and it still seems bright..however on almost every phone I've used its like this.
The weird thing is on the Captivate I can open the browser, men then scroll down to settings and it has a brightness toggle there that takes it lower.
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Yeah that does take it down lower than the home screen by a small amount. I put the browser brightness on the lowest setting and the global brightness on the lowest. Both auto brightness and power save are off. When I switch from the browser to the home screen, it brightens up a touch. So, it does go lower, but not all that much though, and it's only for the browser.

pjs2004 said:
Good explanation, but are saying that no you can't dim it to low levels because it makes it look brighter than it is? If so, I don't buy it. I see it being dimmed to a low level. It just doesn't stay there.
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You can totally dim it more. In doing so, it will use even less power than an LCD screen at the same brightness setting.

Asori said:
You can totally dim it more. In doing so, it will use even less power than an LCD screen at the same brightness setting.
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Yeah, that's what I thought was cool about this type of screen, but I still don't know how to to dim it below the the lowest setting in the phone's control panel (which isn't very low). 3rd party apps I've tried don't really work, or they work, but the phone immediately raises it back up. Are you saying you've dimmed it down to where you can barley see the screen, like 5-10 percent? That's what I'm looking for confirmation on. If so, what app did you use?

pjs2004 said:
Yeah, that's what I thought was cool about this type of screen, but I still don't know how to to dim it below the the lowest setting in the phone's control panel (which isn't very low). 3rd party apps I've tried don't really work, or they work, but the phone immediately raises it back up. Are you saying you've dimmed it down to where you can barley see the screen, like 5-10 percent? That's what I'm looking for confirmation on. If so, what app did you use?
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I have used this app and seems to be pretty good, makes the brightness lower than system brightness.
http://www.androlib.com/android.application.com-curvefish-widgets-brightnesslevel-jDiB.aspx

i use brightness level too but the brightness goes back to the highest level when you plug the phone in and you cant use the presets on the widget anymore

sfernandez said:
I have used this app and seems to be pretty good, makes the brightness lower than system brightness.
http://www.androlib.com/android.application.com-curvefish-widgets-brightnesslevel-jDiB.aspx
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Click to collapse
I tried this app, and while it's a good app, it still doesn't make the screen go super dim. It looks to me like the lowest level (0%) is the same as lowest setting from the control panel. Zero percent should really be totally black.

Screen Filter
Here is your 100% working solution.
It doesn't work with the bright level, it applies a shade/filter to the screen. No matter what app you're using.
Set the bright to the lowest with your default system settings, because if you use a third party that goes below normal, with some apps like explorer, it set it to minimum allowed be system or whatever you set and then you will notice a setp up, shaded but a change.
I'm using it weeks ago and I found it's the best choice to suft the web at night. Also you can turn off softkeys lights
http://www.appbrain.com/app/screen-filter/com.haxor

flash speedmods new kernel.

[APP] SuperDim

RootDim (formerly known as ScreenDim) lets you set the screen brightness on backlit screens below what the OS normally allows, which is handy for amateur astronomy where the lowest normal OS backlight setting (even with a red nightmode) leaks enough through the black pixels to damage night vision. Moreover, SuperDim lets have several brightness profiles, and to include nightmode settings (enabled by ChainFire3D or Cyanogenmod's render fx) as part of the brightness profile.
Needs root.
Public domain, source code available. In Market (search for RootDim).

Now in Market (free, no ads).

I just uploaded version 1.10, which restores low brightness settings after the screen is turned off and back on (the OS normally was restoring its brighter screen).

Works well, but seems to mess with the functionality of the notification/charge LED (Nexus One, CM7.1)

bobtentpeg said:
Works well, but seems to mess with the functionality of the notification/charge LED (Nexus One, CM7.1)
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Click to collapse
I assume this is when you use the other lights option to toggle these lights, or when you restore a profile, right?
In version 1.11 (just uploaded), I no longer restore other lights when a profile is loaded--this should help with your problem, as long as you don't touch the other lights. Eventually, I may add an option to choose which lights get restored from a profile.

I originally made SuperDim for setting very low backlight settings on LCDs, and so I made it not work on non-LCD screens (e.g., OLED). But I've since realized that the profile feature might be useful for non-LCD users as well, so I've released version 1.20 that supports non-LCD screens. It's in Market. While I was at it, I cleaned up the code a little, made it more javaish (I'm new to java).

My MyTouch 4G just seems to turn the screen off totally if i go below 20 brightness, it dims but then shuts off.

Doesn't work at all with Dell Streak 5

I'm sorry to say, but Screen Filter does the same, but doesn't require root.

fifarunnerr said:
I'm sorry to say, but Screen Filter does the same, but doesn't require root.
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Awesome, thanks for the Advise!

fifarunnerr said:
I'm sorry to say, but Screen Filter does the same, but doesn't require root.
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Click to collapse
Actually, all Screen Filter does is dim the colour of the pixels. This app actually modifies the screen backlight level. E.g. Screen Filter just makes the screen gray-er.
Also, works good on Sony Ericsson Xperia X10, but the backlight completly switches of when set to under 15.
Sent from my X10 TripNMiUI-IRIS using XDA Premium App

fifarunnerr said:
I'm sorry to say, but Screen Filter does the same, but doesn't require root.
Click to expand...
Click to collapse
Screen filter merely adds a black semi-transparent overlay across the screen, making it look dimmer.
This app adjusts the backlight, which means darker black levels on the screen.

Frosty666 said:
Actually, all Screen Filter does is dim the colour of the pixels. This app actually modifies the screen backlight level. E.g. Screen Filter just makes the screen gray-er.
Also, works good on Sony Ericsson Xperia X10, but the backlight completly switches of when set to under 15.
Sent from my X10 TripNMiUI-IRIS using XDA Premium App
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Click to collapse
My eyes don't care. +1 Screen Filter

lownox said:
My eyes don't care. +1 Screen Filter
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Your eyes would probably care if you were doing amateur astronomy under a dark sky (which is the primary purpose for SuperDim). Screen Filter doesn't turn down the backlight, and on a lot of devices there is enough backlight leaking through even completely black pixels to damage night vision. You can try this experiment. Turn a backlit device to a completely black screen (maybe view a black jpg) and take it to a completely dark room. Let your eyes dark adapt. The "black" screen will in fact probably be quite grey. (If it's really black, that's probably because you have an OLED device.)
When I do amateur astronomy, I am not infrequently looking to see objects way dimmer than backlit black pixels.

I'd like to do something about the screen turning completely off issue.
To that end, I need people to do some experiments for me, and I will be very grateful (I'll also give a free full version of Force2SD as compensation for the first couple of experimenters, if you want it--just email me). The first experiment is this. Download SuperDim 1.22, now up in the Market. Press the menu key, and choose "Turn on safe mode" (you can tell safe mode is on, because next time you pull up the menu, it says "Turn off safe mode"). Now, turn brightness down to 10. Does your screen turn off?
I should warn that very low brightness levels can be very low indeed. For instance, if I am outdoors on a sunny day, I have trouble telling the difference between brightness 4 and off. So you need to be in a dark area--I recommend a room without windows and with the lights off.
If the screen does not turn off at 10, turn it down to 5, and then 1. Let me know if it ever turns off.
I am guessing that in safe mode, it doesn't turn off at all.
What safe mode does is it makes very low brightness settings not persist. So if you are in safe mode and leave SuperDim, you lose your low brightness setting.
I'd also appreciate it if people who can normally turn their brightness down to 1 could do some experiments with safe mode. Specifically, I'd like to know if moving the slider to 1 in safe mode has the same effect on screen brightness as moving the slider to 1 in non-safe mode has. (Again, if you're one of the first few experimenters and want a free copy of Force2SD, email me.)
On my Archos 43, brightness 1 is very, very dim, but the screen is still on. And I can't tell the difference between safe mode and non-safe mode, except that in safe mode, the settings don't persist after I leave SuperDim.

Tried this app on my desire HD.
Great idea, but when I reach 10 and below, the backlight doesn't get lower.
If I use the adb method (don't remember the command), I can set the backlight manually all the way down to 0.
There is no difference with or without safe mode on.

inspire 4g with coredroid V7.0 doesnt work

elmanortega said:
inspire 4g with coredroid V7.0 doesnt work
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What happens? And does safe mode work?

I agree, doesn't work with Desire HD/Inspire 4G, safe mode only dims the brightness but no lower than normal, and only dims the brightness on the screen, regardless of your settings

kamranh3 said:
I agree, doesn't work with Desire HD/Inspire 4G, safe mode only dims the brightness but no lower than normal, and only dims the brightness on the screen, regardless of your settings
Click to expand...
Click to collapse
I found a bug. In fact, the bug is such that I have no idea how it was managing to work on my device at all! In any case, I think I fixed it. Try 1.23 (should be in Market or here) and see if it does the job. If not, I have some more ideas.

Screen dimming app.

If any of you other users out there feel that the whites on this thing are too awesome for super late at night like I do, I found a app when searching for a f.lux type alternative for android. I have been using this app to help ease the stress on my eye late at night. I dont know about the techical side of what it does, or any of the jargon involved, but it applies a filter of sorts to dim the screen further than what the phone allows. I been using it a lot lately and figure I would share with you guys. If anyone has any recommendations for other similar apps, please share.
Tl:dr
Screen Filter
https://play.google.com/store/apps/details?id=com.haxor
Sent from my SCH-I535 using Tapatalk 2

enomele said:
If any of you other users out there feel that the whites on this thing are too awesome for super late at night like I do, I found a app when searching for a f.lux type alternative for android. I have been using this app to help ease the stress on my eye late at night. I dont know about the techical side of what it does, or any of the jargon involved, but it applies a filter of sorts to dim the screen further than what the phone allows. I been using it a lot lately and figure I would share with you guys. If anyone has any recommendations for other similar apps, please share.
Tl:dr
Screen Filter
https://play.google.com/store/apps/details?id=com.haxor
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
Or just turn on "Background Color" in Power Saving Settings.

Or if you want the screen brightness itself to be lower than what most ROMs allow, you can use this app called RootDim. It worked amazing on my xoom, not sure if it works on the SGSIII yet..
It requires root though..

yosterwp said:
Or if you want the screen brightness itself to be lower than what most ROMs allow, you can use this app called RootDim. It worked amazing on my xoom, not sure if it works on the SGSIII yet..
It requires root though..
Click to expand...
Click to collapse
Screen filter does the same and doesn't require root. On our AMOLED screens this can save battery.
Also you can turn off those damn capacitive key lights by going to Settings>display>"touch Key light duration"> Always off.

I can confirm that Root dim does work for the SGS3 I use it on my phone.
Current~Samsung Galaxy S3 SynergyRom 1.3 & Imo's Lean Kernel v12 Oc'd @ 1.9ghz
~Acer Iconia A500 Stock
Past~Droid X Gummy ICS 1.2

Lux is an amazing auto brightness app and setting it up for your tastes is incredibly simple.
Go out in the sun and turn brightness up all the way using the app then "link" that setting, go in complete darkness and set it to your taste and link it, then indoor lighting, set it, link it. It then uses just those 3 settings to create a smooth graph of brightness values that are all perfect. You can have as many links as you want but i find the less settings you put in that app the better.
I tried all the suggested ones in here btw.
Sent from my SCH-I535 using xda app-developers app

I've tried and really like Lux (in fact I'm considering purchasing it soon) but I've noticed two issues. First is that sometimes it will not refresh itself and I have to open up the lux dash to get the brightness to change. It doesn't happen often, but it happens often enough to be annoying, and I have it set to automatically.
Also, (and this may simply be an issue with the S3 and not lux itself) but sometimes I will be in a decently lit room and be at 1 lux, while lights out is 0. Not a lot of variance unless it's really bright outside. Have you found anyway to increase the light sensors sensitivity?

noingwhat said:
I've tried and really like Lux (in fact I'm considering purchasing it soon) but I've noticed two issues. First is that sometimes it will not refresh itself and I have to open up the lux dash to get the brightness to change. It doesn't happen often, but it happens often enough to be annoying, and I have it set to automatically.
Also, (and this may simply be an issue with the S3 and not lux itself) but sometimes I will be in a decently lit room and be at 1 lux, while lights out is 0. Not a lot of variance unless it's really bright outside. Have you found anyway to increase the light sensors sensitivity?
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Try setting it to be always active in the task bar, that prevents it from being killed. Also try setting it to not use raw values for light sensor readings, this gives you a simple scale of 0-10 for readings and total darkness always reads as 0.
Edit: oops reread your post. That's weird that it is reading indoor light at 1. I usually get around 2 or 3. I used to have a screen protector on that covered the light sensor and that put it all over the place. Maybe that is what's causing it?

noingwhat said:
I've tried and really like Lux (in fact I'm considering purchasing it soon) but I've noticed two issues. First is that sometimes it will not refresh itself and I have to open up the lux dash to get the brightness to change. It doesn't happen often, but it happens often enough to be annoying, and I have it set to automatically.
Click to expand...
Click to collapse
I noticed the same behavior with the free version. In my case, the lowest value the HTC Desire S can reach with its default Android auto brightness is in fact about 15%.
In LUX settings you can configure the "0" value to be lower and "bypass" the freeware limitation (you can't configure sub-zero levels in the free version). This will work when you test it in the dashboard, but during regular use the light level never goes below the 15% limit already set by the OS.
What I did was purchase the full version (to get astronomer mode along with all the settings unlocked) so I was able to leave the 0 level at its default 15% but link some light intensity values to sub-zero percentages. Guess what? It works great! Once you go into a very dark room, the display dims as far as you set it to.
Another problem with the free version was that a few times I unlocked the phone outside in full sunlight and LUX did not increase the brightness. It appeared almost completely black because the light level was at about 15-25% (the same level it would be inside a low lit room).
Again, with the full version I did not notice this problem (I've used the free version for 1 day and the paid version for 1 day but running tests in different light levels inside and outside).
It's like the free version is a bit buggy on purpose, and I remember uninstalling LUX free about 2 months because of this; I was thinking that if the free version does not work OK, I shouldn't buy the full version. Apparently this is not the case (touch wood).
Just for the record, it's on "dynamically adjust".
noingwhat said:
Also, (and this may simply be an issue with the S3 and not lux itself) but sometimes I will be in a decently lit room and be at 1 lux, while lights out is 0. Not a lot of variance unless it's really bright outside. Have you found anyway to increase the light sensors sensitivity?
Click to expand...
Click to collapse
If the display is a bit dirty (oily, dusty, etc) around the light sensor, you can try to clean it. If this is not the case, open the dashboard, let it determine the light level or hit "auto" a few times and make sure the reading is correct. Then just slide your finger along the yellow line to find the appropriate brightness level and long press the chain to link. Go to a brighter lit room then go back to the first room and see how LUX behaves. Also lock/unlock the phone a few times and see how it goes.
If you still have problems running LUX, disable it and check the default Android auto brightness to make sure it's not a sensor issue.
LUX also has the possibility to set the response delay under Settings -> Advanced -> Developer Settings (the last to just on the bottom, but for this you would need to buy the full version.

Inginerul said:
If the display is a bit dirty (oily, dusty, etc) around the light sensor, you can try to clean it. If this is not the case, open the dashboard, let it determine the light level or hit "auto" a few times and make sure the reading is correct. Then just slide your finger along the yellow line to find the appropriate brightness level and long press the chain to link. Go to a brighter lit room then go back to the first room and see how LUX behaves. Also lock/unlock the phone a few times and see how it goes.
If you still have problems running LUX, disable it and check the default Android auto brightness to make sure it's not a sensor issue.
LUX also has the possibility to set the response delay under Settings -> Advanced -> Developer Settings (the last to just on the bottom, but for this you would need to buy the full version.
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Click to collapse
Thanks, but I think it is more of an issue of the sensor not being sensitive enough. I'm not sure if this is anything you can change in lux or if it would have to be edited in the kernel (or if it is fault of the hardware) but I just feel like the sensor doesn't go down low enough. As I said, I can get down to 1 or 0 in a decently lit room, and yes I have tried cleaning the screen. It's not like it jumps around or anything so it's not like I would notice anything in default auto brightness, it's just that it doesn't seem to be sensitive enough.

Screen filter is great!! I use as well!!!
Sent from my SCH-I535 using Tapatalk 2

Well for my Desire S, the lowest light level that the sensor can read is 160 lux (raw value). You can try and set LUX to use raw values because this is more accurate in my oppinion.

Another +1 for Screen filter here

Does anyone know how to use "luma" values for automatic adjustment in Lux instead of "lux" values?

noingwhat said:
Does anyone know how to use "luma" values for automatic adjustment in Lux instead of "lux" values?
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Click to collapse
What I have noticed on my phone is that "luma" readings are taken from the front facing camera, while "lux" readings are taken from the ambient light sensor (you can chose which one to use in the settings).
I suppose the front facing camera uses more battery than the light sensor; it also appears to be more sensitive because it can read more light levels.

Inginerul said:
What I have noticed on my phone is that "luma" readings are taken from the front facing camera, while "lux" readings are taken from the ambient light sensor (you can chose which one to use in the settings).
I suppose the front facing camera uses more battery than the light sensor; it also appears to be more sensitive because it can read more light levels.
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Click to collapse
I guess so. Thanks! But doesn't that kinda defeat the whole purpose of Lux? Because you can't use automatic mode with the camera(s).... so then what's it good for?

Well even if you don't have an ambient light sensor, you can still use the camera to check the light level when you unlock the phone and let LUX adjust the brightness level. Of course it's not dynamic but it's still better than having the brightness at 50% the whole time or changing brightness levels through a widget..

[TIP] Surface adaptive display

I use a very dim display to save battery on the Surface or any other mobile device. The adaptive (auto) brightness feature isn't truly the best for the Surface for sure. I noticed that the screen flicks too much even though you're in the same environment. On reading about it on the web, I figured that this is a genuine problem for many on the tablet. Bad design maybe. So instead of reducing the brightness to minimum, I kept it at almost like 7-10% and voila ! The display is now as crisp as its supposed to be ! I wouldn't guarantee if it won't flick at all, but trust me, its like 90% better
Enjoy your new Surface !

screen flickering
Hi,
I've also noted some light flickering issues on my Surface (that I really like) even if the auto-brightness feature is off and with 100% level.
Generally speaking, it's not visible unless :
- you're scrolling quickly through the start screen
- you're closing an app with the proper gesture
It seems that for half second the scrim flickers...is it also happening to you ?
I was considering a RMA but I'm not sure if it's more a SW problem than a HW one.
Thank you for your answer.
Fabio
rustedfate said:
I use a very dim display to save battery on the Surface or any other mobile device. The adaptive (auto) brightness feature isn't truly the best for the Surface for sure. I noticed that the screen flicks too much even though you're in the same environment. On reading about it on the web, I figured that this is a genuine problem for many on the tablet. Bad design maybe. So instead of reducing the brightness to minimum, I kept it at almost like 7-10% and voila ! The display is now as crisp as its supposed to be ! I wouldn't guarantee if it won't flick at all, but trust me, its like 90% better
Enjoy your new Surface !
Click to expand...
Click to collapse

I think its more visible when you're on the Metro UI or the Start screen. And more on when I am scrolling from the side of the screen, just like you said. Its pretty weird.

Is there a way to keep the screen always on ?

Hi!
It may look strange, but I really would like to keep the screen of the gear watch always on, at the lowest possible light setting and that when the watch detects the wrist movement, the light settings come back to the normal one.
I'm sure this will add up to very low battrey life. But if I can get a day like this, it would be great!
Thanks!

I wanted this at first, because coming from the Pebble -it's just so convenient having the screen accessible all the time and the gesture doesn't always register.My idea was that it should just be a very minimal screen in terms of pixel use to leverage the power saving qualities of the AMOLED tech. Problem is, the AMOLED screen is also known for burn-in on the phones, so I'm afraid even if we set this it would damage the watch screen in the long run (and I would be ok if I only got a day of use also, as I'm fine charging every night anyways).
There is a watchface called "AlwaysWatch" in the Samsung Gear store that's supposed to give you an always on face until the battery runs out. Problem is, it runs as an app instead of the default face and of course I'm afraid to try it due to the burn-in issue. I sent the developer a note saying make the watchface a small, but still legible digital font instead of analog and float the time around the screen periodically would get around this burn-in risk, we'll see if he adds the option.

Thanks for the info on this app (I also have a pebble ).
In order not to burn the screen, it would be preferable to change the watchface form time to time and put it in the lowet light possible...

FixB said:
Thanks for the info on this app (I also have a pebble ).
In order not to burn the screen, it would be preferable to change the watchface form time to time and put it in the lowet light possible...
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Click to collapse
One of my disappointments besides the flaky gesture wake up is that there doesn't seem to be an ambient light sensor to trigger screen brightness changes. I would have thought that would be a no brainer for a device such as this by now.

rEVOLVE said:
One of my disappointments besides the flaky gesture wake up is that there doesn't seem to be an ambient light sensor to trigger screen brightness changes. I would have thought that would be a no brainer for a device such as this by now.
Click to expand...
Click to collapse
Maybe the camera light sensor in the Gear 2 could be used for that purpose?