Hi All.
I have wondered why the software that controls the backlight, with the light sensor, doesn’t adjust the backlight to the lowest setting, when the phone is in total darkness.
I use my phone in complete darkness almost every night, but I think the backlight is way to bright. I know I can adjust it manual, but why not automatic?
Do any of you bright heads, know a reg value to change or another solution, so I can "allow" the backlight to go to the lowest setting, automatically?
I find this anoying also. Any help would be great.
Anyone? I have looked in the registry but cant find anything... :-/
as far as i know there is no software\tweak that can change backlite to min
Same here. In my case, I'd like the backlight to be a bit brighter in brighter conditions, especially when in the car on a sunny day and I'm using iGo. Manually, I can set the backlight higher. I had a sony ericsson phone with a similar light sensor, but you could adjust its maximum threshold and the general brightness. Surely there's a software solution here somewhere!
I searched a little and quickly found some things:
1. The Diamond seems to have an in-built process to adjust brightness according to light sensor. Don't know if it works, though.
2. The registry keys are found at "HKEY_CURRENT_USER\BackLight\". You can modify brightness there, and it will affect the control panel BUT not change your current brightness. There is an Event you must trigger to update brightness. In many devices, this is the BacklightChangeEvent, in some others, this is SDKBacklightChangeEvent, and some others something different. Depends on the device and the manufacturer.
I wrote an app to change the registry value and trigger both SDKBacklightChangeEvent and BacklightChangeEvent. I can see on the control panel the value has changed, but the visible Brightness won't change. Seems HTC decided to make their own DLL to manage that, instead of standard windows mobile events.
So, I searched a bit further and I found that into "HKEY_LOCAL_MACHINE\Drivers\BuiltIn" there is a key called "Frontlight" which is apparently defining a value which points to Backlight.dll. This must be HTC's implementation of the Backlight manager. I was like "yay this will be my first windows mobile dll reverse engineering" BUT, I didn't find this file anywhere on the device, unfortunately.
If anyone could find it on the Diamond, please pass me the info !
Scotchy49 said:
I searched a little and quickly found some things:
1. The Diamond seems to have an in-built process to adjust brightness according to light sensor. Don't know if it works, though.
2. The registry keys are found at "HKEY_CURRENT_USER\BackLight\". You can modify brightness there, and it will affect the control panel BUT not change your current brightness. There is an Event you must trigger to update brightness. In many devices, this is the BacklightChangeEvent, in some others, this is SDKBacklightChangeEvent, and some others something different. Depends on the device and the manufacturer.
I wrote an app to change the registry value and trigger both SDKBacklightChangeEvent and BacklightChangeEvent. I can see on the control panel the value has changed, but the visible Brightness won't change. Seems HTC decided to make their own DLL to manage that, instead of standard windows mobile events.
So, I searched a bit further and I found that into "HKEY_LOCAL_MACHINE\Drivers\BuiltIn" there is a key called "Frontlight" which is apparently defining a value which points to Backlight.dll. This must be HTC's implementation of the Backlight manager. I was like "yay this will be my first windows mobile dll reverse engineering" BUT, I didn't find this file anywhere on the device, unfortunately.
If anyone could find it on the Diamond, please pass me the info !
Click to expand...
Click to collapse
Thank you. Its a lot of attention you have given this topic. For that I thank you. - Just too bad you cant find that dll. :-/ Hope some other helps.
backlight.dll found in Windows folder
axelpix said:
backlight.dll found in Windows folder
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Click to collapse
Thanks, for reference, there are the functions:
Code:
BKL_Close
BKL_Deinit
BKL_Init
BKL_IOControl
BKL_Open
BKL_PowerDown
BKL_PowerUp
BKL_Read
BKL_Seek
BKL_Write
inside the Backlight.dll
This has to be a lot easier.
I found some reg settings in HKCU\ControlPanel\BackLight, one of them called "AutoBklOffset". Actually this is exactly what we're searching for here: When I enter a value >0 here, the backlight instantly goes brighter, and the automatic backlight setting is still active and works.
so, what we have to do is figure out how to enter a negative value here.
Ideas?
Hmm, I don't think we can get anything only with the registry, but we don't lose anything to try, do we ?
I'll check again the registry.
Ok. Actually AutoBklOffset is linked to "Auto backlight adjust". This means that if auto backlight adjust isn't ativated, AutoBklOffset won't do anything.
Ok, all this search was fun. But I told myself: what if I just go ahead and try if the already built-in app works ?
And yea, it already works. Meaning if you put the device in front of the sun, it will go bright, and dim if you're in a dark place.
So I guess this is a configuration specific issue and don't need a new app. I'm out of tha place !
P.S.: It would have been actually quite stupid to include a Light sensor but not using it.
Scotchy49 said:
Ok, all this search was fun. But I told myself: what if I just go ahead and try if the already built-in app works ?
And yea, it already works. Meaning if you put the device in front of the sun, it will go bright, and dim if you're in a dark place.
So I guess this is a configuration specific issue and don't need a new app. I'm out of tha place !
P.S.: It would have been actually quite stupid to include a Light sensor but not using it.
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Click to collapse
my works fine
u can test it on bright light...u will see the change when u cover uper part oh the phone....it will dimm and u will se almost nothing...
microlomaniac said:
This has to be a lot easier.
I found some reg settings in HKCU\ControlPanel\BackLight, one of them called "AutoBklOffset". Actually this is exactly what we're searching for here: When I enter a value >0 here, the backlight instantly goes brighter, and the automatic backlight setting is still active and works.
so, what we have to do is figure out how to enter a negative value here.
Ideas?
Click to expand...
Click to collapse
This tweak still dosnt make the phone use the whole scale. From dimmest to brightest. :-/
Scotchy49 said:
Ok, all this search was fun. But I told myself: what if I just go ahead and try if the already built-in app works ?
And yea, it already works. Meaning if you put the device in front of the sun, it will go bright, and dim if you're in a dark place.
So I guess this is a configuration specific issue and don't need a new app. I'm out of tha place !
P.S.: It would have been actually quite stupid to include a Light sensor but not using it.
Click to expand...
Click to collapse
You misunderstand the issue.
With the backlight set to auto try using your phone in a completely dark room - the light sensor will detect this and the phone dims. Okay, now remove the auto setting and you will find that you can make the phone even dimmer than this using the slider. The lowest auto setting is equivalent to level 3 on the manual scale - what the guys here want to do is make this equal to level 1, or lower (or in the case of one poster make the maximum auto setting equal to the maximum manual setting, or perhaps even higher if possible).
The issue is therefore not whether or not the light sensor works (it does), or whether the phone can automatically dim/brighten the display in response to the ambient light level (it can), but whether it is possible to make the full scale range in automatic mode equal to that which the device offers in manual mode.
Mathew
Spot on!
Hi friends.
I have the problem using TomTom at car. When Diamond receive direct sun light it increases backlight until 70%, but not 100%; when I drive at night Diamond decreases backlight until 30%.
I would like adjust some values to 100% and 10% but I have no idea about registry or dlls.
aidrabmol said:
When Diamond receive direct sun light it increases backlight until 70%, but not 100%; when I drive at night Diamond decreases backlight until 30%.
I would like adjust some values to 100% and 10% but I have no idea about registry or dlls.
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Click to collapse
Nice summary
This exactly was the original topic of this thread.
Scotchy49 said:
Ok, all this search was fun. But I told myself: what if I just go ahead and try if the already built-in app works ?
And yea, it already works. Meaning if you put the device in front of the sun, it will go bright, and dim if you're in a dark place.
So I guess this is a configuration specific issue and don't need a new app. I'm out of tha place !
P.S.: It would have been actually quite stupid to include a Light sensor but not using it.
Click to expand...
Click to collapse
Did you come any further with the app?
I too would like to see a solution for the narrow range of light sensor adjustment. The screen stays too bright when ambient is dark.
In my Sprint CDMA Diamond, I see these registry entries:
HKEY_CURRENT_USER\ControlPanel\BackLight
LSensorReduceBKLDelay
LSensorAvegQuene
I wonder what they do. There must be some way to change the range of adjustment or the bias of the light sensor.
Is there any way to adjust the threshold for when to rotate to landscape?
It is quite annoying to have it switch to landscape on some small rotations...
i would LOVE to know this, too. my damn phone is way too sensitive. it constantly switches when i don't want it to
I would love to limit screen rotation to certain programs.
Makes sense in the browser but nowhere else.
Or show an icon for a couple of seconds after a rotate that will disable rotation in the current program until you close it.
Suggestions on screen auto-rotate
Sensitivity should be adjustable, at its least sensitive setting, the phone would require a full 1g of acceleration PURELY in the direction of the new screen bottom.
Where "PURE" means the acceleration vector lies in the plane of the screen, and the phone is held perfectly orthogonal with g.
It would also be nice to have gesture for manual screen rotate that works in any app without otherwise disrupting the app.
I need some help with options in this phone. First off all I found it annoying that the bottom 4 touch button light turns off in like 5 seconds. I know it saves battery but I want to have the option to keep on longer. I'm pretty sure there isn't a built in option, but is it possible for anyone here to mod this? (I think you can do it because there is a mod to turn them always off).
Next I feel that the lowest screen brightness is still pretty high. Is there anyway that I can reduce it? Possibly through an app? I'm rooted and everything so no problem there. Thanks
Many would like the option to change the time out on the buttons. Unfortunately no fix yet.
As for the brightness, many of the widgets to adjust brightness from the market will allow lower settings
I use extended controls..I don't think it was free but is highly customizable
Hey guys, as you all know, there usually is no way, of how to control led brightness and duration in a stock ROM, except for Zeus ROM. Now I just found a way, of how it probably could be controlled, but I dont know, how to set it correctly... Just open the hidden menu (3845#*970#), then go to device test, scroll all the way down, to LED current control and there you can set different things, but I dont know, how to set it correctly... can anyone explain the settings maybe or even build an easy to use app, which would allow all of the stock users, to control the LED brightness and maybe even the brightness of the LEDs.
And I also discovered, that with some random settings i chose, my softkeys all are illuminated blue, which I like very much, maybe also a feature, that is settable somehow... Would be really cool, if we could use this somehow. There also are some paths, that show, which file is being used, but it doesnt tell me anything, so maybe someone here can take benefit of it I hope so
I would love yo have them all blue
hmm, I don't get the point. when you control screen brightness, it's leds brightness logically... I mean, it's global. decreasing brightness decreases luminosity of leds light. backlight is about zones or areas.
My point is, I first of all want full control over the Softkeys. I want to be able to set color, duration or permantent light and also the brightness of the softkeys. I for example would like to have them blue at full brightness and permanently illuminated, since I hate it if they go out completely and I miss the right button... I know, it's not that much of a deal, but dont you think as well, that it would be cool, to be able to control it? It's not about the screen brightness, but only about the softkeys. Get what I mean and want?
okay I see. there is the notification app already which control a part of softkeys. maybe you could understand how to control them if you're able to decompile the app to see the source code ?
Hi,
Not sure where the correct place is for this, so thought that I'd put it here.
I am looking for an app that controls brightness. I like the brightness of my phones to be dialed down to around 40%. I find it most comfortable for my eyes. Yet when it is bright out, I need to make the screen brighter. This means that I need to go in and manually adjust the brightness. I don't like to have the phone set to automatically adjust the brightness.
I'd like to find an app that allows adjusting brightness by icon. I don't want one that has one icon that toggles through a bunch of preset brightness levels. Instead, I want an app that can have different icons for different brightness levels. That way, if I wanted to toggle the brightness to 60%, I could tap an icon that does that. Then I could have an icon set for 30% to set it back.
Anyone know of an app that does this?
usmaak said:
Hi,
Not sure where the correct place is for this, so thought that I'd put it here.
I am looking for an app that controls brightness. I like the brightness of my phones to be dialed down to around 40%. I find it most comfortable for my eyes. Yet when it is bright out, I need to make the screen brighter. This means that I need to go in and manually adjust the brightness. I don't like to have the phone set to automatically adjust the brightness.
I'd like to find an app that allows adjusting brightness by icon. I don't want one that has one icon that toggles through a bunch of preset brightness levels. Instead, I want an app that can have different icons for different brightness levels. That way, if I wanted to toggle the brightness to 60%, I could tap an icon that does that. Then I could have an icon set for 30% to set it back.
Anyone know of an app that does this?
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Click to collapse
Lux, if properly configured, could do that for you.
I think I understand what you're going for. I use Power Toggles (Dev: Painless Apps), and one of the toggles on the widget is for brightness and I have it set to 3 settings when I touch it; 20%, 40% and 100%. It's not possible to set each new brightness widget for individual brightness presets, unfortunately, but I don't see how it would be difficult to just make some predetermined settings for your brightness.
By now you should have a pretty firm idea on what level of brightness you prefer throughout your day so maybe you can use this app and have 2, 3 or more presets. It's really simple to use, I have it set to 3 settings and touching the widget to get to the brightness I want at that moment is super quick and not difficult at all.
You can see in the screenshot I use the widget at the top on my home page. Brightness is among the other toggles I use on a regular basis. Much quicker to turn on and off things, IMO. It's right there on my home screen so I don't have to pull my notification window down. I hope this helps.
I just use Auto Brightness setting. I set the brightness slider at 40% and the phone will auto-adjust the screen to keep it at a relative 40 indoors and outdoors.
I think this is what you're looking for:
https://play.google.com/store/apps/details?id=com.ss.moreshortcuts