How do you adjust the brightness and the contrast of the screen of an XDA?
Unfortunatelly, you can't. You can turn the backlight on/off, but that's all.
ir ur running 2002, there's a program called EZTWEAK that lets you add Contrast to your settings folder. i think it's a registry tweak since Contrast appears to be already on the rom but unviewable unless it's turned on
brightness can be adjusted under screen in settings though
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I would like to use my 8525 in place of an alarm clock on my nightstand. But when I have it upright in a dock, the backlight is too bright to function as a night time clock, even when on its dimmest setting. Does anyone know of a way to dim the backlight lower than its lowest setting the backlight control panel? Is there are program similar to the "night mode" that some astronomy programs so you can use your device without affecting your night vision. Vito Astronavigator II has such a feature, but it only works when Astronavigator is displayed. If you switch to the Today screen, the display returns to the normal brightness setting.
Thanks.
I figured this would come along by now but for some reason it hasn't. On my iPhone I could set my brightness that the auto brightness would adjust accordingly. Because the auto brightness is generally too bright or too dark. Also maybe adding some timing controls for how long before the auto brightness adjusts. The displays in these devices suck down the battery like crazy this would help significantly.
BrandonG777 said:
I figured this would come along by now but for some reason it hasn't. On my iPhone I could set my brightness that the auto brightness would adjust accordingly. Because the auto brightness is generally too bright or too dark. Also maybe adding some timing controls for how long before the auto brightness adjusts. The displays in these devices suck down the battery like crazy this would help significantly.
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I too thought we might have seen this by now. I know there have been some tweaks in ROMs, but a slider that sets the sensitivity or the upper/lower limits would be excellent.
u talking about this? http://forum.xda-developers.com/showthread.php?t=708660
extended controls has a auto brightness controller sort of if thats what your looking for
b33zy682 said:
extended controls has a auto brightness controller sort of if thats what your looking for
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Extended controls has an Auto Brightness setting, same as Froyo Power Control widget.
What OP wants is auto setting where you can control sensitivity of light sensor.
Ok I'll try explaining again. Communication isn't my strong suite. Basically, on an iPhone you can set auto brightness, then under auto brightness checkbox you have a slider that calibrates the brightness throughout the range of the ambient light sensor. So it's still a brightness control it just works in conjunction with the auto brightness setting. Being able to fine tune the brightness throughout the range of the ambient light sensor would be a bonus because with the current auto brightness I can barely see the screen in daylight but it's not maxed out because I can still adjust it all the way up with the power control widget and the opposite is true at night, i could go dimmer at night and still see the screen clearly. Strictly copying the functionality of the iPhone wouldn't fully address this. An app would be ok I suppose but I'd much rather see a system mod. I really hate apps like Trackball alert, nothing against the author I just don't like running an additional app to address the lack of a feature in the OS itself.
Good thought
I agree completely. I'm a recovering iPhone user and the adjustable auto-brightness is a feature that I desperately miss. One of my top complaints about android.
This idea is fantastic. It's something I've been thinking about too (never knew iPhone has it though)
When indoors I sometimes find auto brightness too bright. When outdoors and its sunny sometimes its upper limit is not bright enough. In both situations I have to turn off auto.
Actually last night I noticed that auto brightness was dimmer than the lowest brightness setting. I reckon that a lower/dimmer threshold should be available too on the manual brightness settings.
I just installed Android 2.1 and rooted it. In the brightness setting there is no longer a selection to choose the Auto-brightness setting, just a slider for low and high brightness.
Also I noticed the Power Widget that has the brightness control switch lets you switch between low, auto, and high, but while in Auto (the dimmer setting while the button is ON), the sensitivity is very poor and will only brighten the display by about 10% while moving from a very dark environment to a very bright environment.
Yup, i agree. This sucks. Although i had forgoten how nice everything looks with the brightness turned up. All the same id like to have it back.
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cant expect everything in 2.1 to be perfect. Yes it has taken them a while but i wouldnt expect it to be without any flaws!
At least we got it finally. WOOOOOOOOOOOOOOOT
azian_advanced said:
I just installed Android 2.1 and rooted it. In the brightness setting there is no longer a selection to choose the Auto-brightness setting, just a slider for low and high brightness.
Also I noticed the Power Widget that has the brightness control switch lets you switch between low, auto, and high, but while in Auto (the dimmer setting while the button is ON), the sensitivity is very poor and will only brighten the display by about 10% while moving from a very dark environment to a very bright environment.
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I thought this today too but the Auto Brighten IS there and still working, just a bit differently.
Initially you choose the 3 levels of brightness on the quick select from the 5 widget icons. This is the brightest it will go, but if you go from a dark or light room it DOES indeed still adjust.
I noticed this after a bit today just standing in the kitchen watching the movers do their thing at my old place. The sun was ducking in and out of the clouds and the auto function was working fine. I tried it in all 3 modes, the only one it doesn't do anything in is the least bright mode...the one I noticed it most is the middle bright mode.
So YES, it is indeed working, just differently.
The auto Brightness sucked in 1.6 anyway. It was never that good for me. I use a brightness widget to adjust it.
I much prefer the way it works now. Seems to be a lot more user friendly tbh
have you tried the setting in spare parts (from the market)?
I've not tried it myself, but I know the auto setting is there.
Auto birghtness
Hmm. I have the 2.1 update and I have set the brightness to the low setting in the power widget. The brightness still adjusts automatically, and I don't want it to. I want it to stay at a low level all the time to save my battery. How?!
Hi, I have an I9100G, with rooted stock ROM, firmware DZKI1, Android 2.3.5. I'm just curious about a couple of items in the Display settings. There's an option called Brightness - Adjust the brightness of the screen, and when we click it, we can adjust the brightness or select the checkbox for Automatic brightness. On the same screen, a bit further down, there's another setting for Auto adjust screen power - Save power by analyzing image and adjusting LCD brightness. Anybody knows what's the difference between the two?
One uses an external light sensor to adjust for lighting conditions.
the other uses an internal sensor to adjust the colour display depending on the background of the graphic and how many colours are used.
Is there a way to add the Auto Adjust Screen Power setting to roms that do not have this setting? I would like to use some of these great roms but they are too dim for me. To see what I am talking about, if you have this setting, check mark it and you will see all the apps become very dim and for some reason all the roms that do not have this setting have it have this set by default with no way to uncheck it. It would be great if this could be added to all our roms cause my vision cannot take the strain of the dim screen.
Any devs listening?
I read in another phone thread there was a screen xml that controlled the level of auto brightness and could increase the level over 100% so you could see the screen better in daylight.
So it is possible but I have no skill or clue.