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Is it just me or does the auto-brightness seem to only stay at a certain brightness and never change? On my previous phone, usually when I had auto-brightness enabled, whenever I walked into a dark room, my brightness would lower right away but on this phone, no matter where I go, the brightness seems to always be the same with auto-brightness on. The brightness does not change, even when I walk out with the sun out..
Can anybody confirm this please, I'm thinking of exchanging this unit as it might be defective...
Sent from my LG-P999
Might be your phone. In my moderately-lit office, I can definitely see the screen brightness change when I focus a flashlight on the sensor and then take it away. It's not a huge difference, but definitely observable.
Do you use a case? Is the case blocking the light sensor?
I do not use a case. I have also tried blocking the sensor with my fingers and the brightness just seems to always stay the same... also when I use the power control widget to change brightness and set it to auto-brightness it immediately jumps to that same particular brightness level that I've been stating
Sent from my LG-P999
I was noticing this as well. It seems to just go to medium brightness and stay there all day. I never notice any changing.
abowmedia said:
I was noticing this as well. It seems to just go to medium brightness and stay there all day. I never notice any changing.
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That's exactly what I'm experiencing, glad to know I'm not the only one..
Sent from my LG-P999
The change is definitely less noticeable on this phone than my Nexus One, but is there.
I just got the G2x and it does the same for me. It's range of brightness seems to be 20-30% and that's it. I had this problem with stock gingerbread, so I tried rooting and installing CM7, but same problem. So I got it set to manual 10/40/100 on my power control.
My friend said his original droid did this for quite a while until a software update came along a few months later. Maybe we just have to wait till there's a software update to fix it?
Yes, it's borked, always has been.
Mine is broken too. Same happens to me.
Sent from my LG-P999 using XDA Premium App
Same here. It has never worked, as far as I can remember. Depending on where the setting happens to be left at, my battery runs out in just a few hours, or I cannot use it in the car.
Aside: I switched to an original Droid from an iPhone 3G, then onto a G2X. My next phone is going to be an iPhone -- and I'm not coming back to Android until Google figures things out. Android is nice, but I hate being out of date after a couple of months, and having to install unsupported, hacky, half-broken user-built ROMs to stay current with the state-of-the-art functionality.
I have been playing with my TF for a little over a month. I updated to 3.1 so I don't know it this is an issue. My problem is the ambient light sensor. It doesnt seem to work. No matter what brightness i have or if it's on auto or not I have never seen my screen get dimmer or brighter in any situation. I put a flashlight right on the sensor and I see nothing change onscreen. Anyone else have this going on?
My light sensor appears to work. It does have a fair amout of hysterisis in it otherwise it would drive you nuts.
Sounds like you're either not shining your torch at the actual sensor or yours really doesnt work. It's about an inch to the left of the front camera in case it's the former. It should poll every 4 seconds when on 'auto' brightness, and change the screen accordingly. I find that it works, but it doesnt really change the screen brightness to the best level for viewing. I'm sure there's an app to deal with this although I usually just set it manually. It's easy enough to do.
Oyeve said:
I have been playing with my TF for a little over a month. I updated to 3.1 so I don't know it this is an issue. My problem is the ambient light sensor. It doesnt seem to work. No matter what brightness i have or if it's on auto or not I have never seen my screen get dimmer or brighter in any situation. I put a flashlight right on the sensor and I see nothing change onscreen. Anyone else have this going on?
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It's perfectly possible the sensor is sensitive to IR or some other wavelength in daylight that's not emitted by your flashlight. The sensor definitely works just fine for me.
I never notice the screen changing brightness (it's designed to gradually change according to the different light exposure so human eyes don't notice it changed, but in reality it did change). When I'm in a car however, if there's trees near by and it blocks the sun every so often, I can clearly see the brightness suddenly shooting up and dropping down. I don't think it works with lamps though (turning on my lights didn't make the display brighter), only light from the sun.
It works quite well now that I'm updated to 3.1. It went through various stages of not working or just messing up back on the 3.0 updates. Now it reacts, increases and decreases and the screen is bright enough.
Mine seems broken too. Strange, because this would be the first thing wrong with me Transformer and it doesn't even seem like a common problem.
This and the browser typing lag alone are making me think of selling it.
Okay, mine is definitely broken.
I just tried it by going out in the balcony and then going in the bathroom and shutting the door - nothing happens.
Seriously Asus, what were you doing when you designed and built this thing? My Tranformer is otherwise perfect - no light bleed, no creaks, no pubes under the screen, no issue at all. Except the light sensor... it seems maybe the perfect Transformer doesn't exist.
mine works
Okay, some progress.
Shinning my HD2's bright dual LED's right onto the sensor actually makes the sensor work.
But still, this thing is apparently not calibrated well because going from outside to a totally dark room didn't change the brightness - it doesn't matter if putting two LEDs right onto the sensor makes it work, that's not why it's there.
On my TF, it takes about a minute for the brightness to change when I move from a dark room to the great outdoors.
Give it a little time for the software loop to kick in
Is this any way to calibrate this sensor? It's works horrible!
Shawn_230 said:
Okay, some progress.
Shinning my HD2's bright dual LED's right onto the sensor actually makes the sensor work.
But still, this thing is apparently not calibrated well because going from outside to a totally dark room didn't change the brightness - it doesn't matter if putting two LEDs right onto the sensor makes it work, that's not why it's there.
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Do you have a screen protector?
Not to go off topic but I only had keyboard lag when I was using the Asus keyboard Shawn, have you tried the default Android keyboard?
There is an app in the market called androsensor that will tellyou the values for many sensors including the light sensor.
Mine is measured in lux and ranges from 0 to 400 indoors it does not update quickly mine updates every few seconds.
Sent from my Transformer TF101
vladdt said:
Is this any way to calibrate this sensor? It's works horrible!
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There is a paid program i use and love called lux
Well worth the price imo. It essentially lets you manually adjust the screen brightness for the various light levels over time, remembers these and will automatically put the screen at those levels next time. It alo has some logic too but i cant talk to that.
Sent from my Transformer TF101
It seems to work for me except that it doesn't adjust the levels properly. I can be in a somewhat bright room and the brightness is still at its lowest level, making it difficult to read. However, in broad daylight, the brightness shoots up.
I might try Lux as suggested previously.
lrissman said:
There is a paid program i use and love called lux
Well worth the price imo. It essentially lets you manually adjust the screen brightness for the various light levels over time, remembers these and will automatically put the screen at those levels next time. It alo has some logic too but i cant talk to that.
Sent from my Transformer TF101
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+1 for Lux - great app
Sent from my Transformer TF101 using Tapatalkr
Just received my tf700t and updated to the new firmware. I noticed that when switching from any screen back to home screen and even throughout watching movies on my tablet, the screen brightness constantly adjusts even with automatic brightness turned off. Its pretty annoying esp. while watching movies. Is there a solution to this problem?
Can't say I have noticed that, and I've used it both with automatic brightness on and off. Maybe try a factory reset?
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I noticed the same thing - I believe it's the LED backlight adjusting when you go from bright-to-dim and dim-to-bright screens. It is annoying though. I'm assuming that I'll just get used to it (I just got my TF700 yesterday)...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
So your saying that taking off the auto and setting it to the brightest setting and it still adjusts by itself.
Sent from my LG-P999 using xda premium
Eroc162 said:
So your saying that taking off the auto and setting it to the brightest setting and it still adjusts by itself.
Sent from my LG-P999 using xda premium
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Yes, I have noticed it as well. Doesn't bother me, though -- I'd rather have the system tweak itself for brightness than just picking a brightness off-hand and sticking to it.
I've previously owned the tf101 and never had anything like this happen. I use my tf700t at about 30-40% ips, and it constantly adjusts. I haven't tried it at full brightness, but it still is weird that it would keep adjusting even throughout watching movies. It almost like 3 or 4 subtle brightness changes when going from say the apps screen back to the home menu (on default wallpaper). I went through all my settings and googled it without success, so I'm figuring that people either don't notice or just aren't bothered by it. It's driving me crazy though
I noticed this...and thought I was going crazy. Thanks for confirming it's not just me and yes it drives me nuts. Hopefully there comes out a way to stop it.
Auto brightness was way too dim for me. So I've disabled it and set the brightness myself.
Splaktar said:
Auto brightness was way too dim for me. So I've disabled it and set the brightness myself.
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What I'm talking about has nothing to do with auto brightness. When it's turned off, there seems to be some type of secondary auto brightness that you have no control over because it constantly adjusts when switching through certain apps/screens and playing movies. Look closely at the screen and you should see it. I'm glad I'm not alone as a few others have confirmed this discovery as well. I don't understand the point in setting your own brightness when the tablet will still adjust itself with auto shut off. I hope a fix of some sort will come soon.
I have not noticed any change in brightness levels with auto brightness turned off.
It reminds me a bit of the brightness/contrast adaptation my SGS2 does -- only there it can be toggled under the display settings, whereas on the TF700 you're just stuck with it.
I don't think that the screen is actually changing brightness - just that the backlight is adjusting as needed depending on how much bright/dim colors are on the screen...
What's strange is that if I enable auto-brightness (which works great in the bright office), that effect seems to go away... Very strange...
I'm assuming that it's a battery-saving thing, but I'm really not sure...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2
I actually watched this happen (without auto brightness on) without transitioning to a new screen while scrolling past a dark image on a light forum thread. I think it's a tegra 3 thing. I know I read about t3 dynamically adjusting the backlight during video playback and saving more energy in the process than the t3 soc itself consumes during playback.
I've been using mine on power save mode so far. I'm betting the brightness changes would be more fluid and less noticeable at higher speeds.
Read your user manuals. It discusses the feature in its entirety.:good:
fortunz said:
I actually watched this happen (without auto brightness on) without transitioning to a new screen while scrolling past a dark image on a light forum thread. I think it's a tegra 3 thing. I know I read about t3 dynamically adjusting the backlight during video playback and saving more energy in the process than the t3 soc itself consumes during playback.
I've been using mine on power save mode so far. I'm betting the brightness changes would be more fluid and less noticeable at higher speeds.
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So that's probably your answer,
You running on maximum power saving mode. What you expect?
You asking tablet to save all power it can, and that's exactly what's it's doing.
Of course there's a chance of defect, hardware it software. But that could only be tested on a group of other tablets using same settings, to try to recreate what you describing.
Sent from my SGH-T989 using xda premium
Buy LUX from playstore, its worth it for the tablet
vlad2277 said:
So that's probably your answer,
You running on maximum power saving mode. What you expect?
You asking tablet to save all power it can, and that's exactly what's it's doing.
Of course there's a chance of defect, hardware it software. But that could only be tested on a group of other tablets using same settings, to try to recreate what you describing.
Sent from my SGH-T989 using xda premium
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I'm not at all clear what made you think I was looking for an answer.
fortunz said:
I'm not at all clear what made you think I was looking for an answer.
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I was simply commenting, like all do on public forums.
Guess I was mistaken, you were just complaining how bad another android tablet.
Just go buy yourself an iPad already!
Sent from my SGH-T989 using xda premium
I've noticed the same, as well as a few other users, we actually had a (sub)thread about this a few days ago here.
This is in fact very similar (or equal) to dynamic contrast we all know from LCD screens. Unfortunately I do not know the solution, but setting the brightness to as low as I need in any given lighting conditions helps.
vlad2277 said:
I was simply commenting, like all do on public forums.
Guess I was mistaken, you were just complaining how bad another android tablet.
Just go buy yourself an iPad already!
Sent from my SGH-T989 using xda premium
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You were mistaken in thinking there was any complaint at all in that post.
My S5's auto brightness seems to get way to low in darker areas. Also the "+5, -5" slider while on auto seems to do nothing for me.
Has anyone else experienced this?
Sprint - Galaxy S5 - Moto X - Nexus 7 LTE
Sure have, at times its way to dim and when set on auto-brightness that slider doesnt seem to do anything. I usually cant stand auto brightness on any phone tho.
Yea I know what you mean about auto brightness in general, but I feel like this phone takes the unusable to the max. I've never experienced anything like it.
Sprint - Galaxy S5 - Moto X - Nexus 7 LTE
Sadly I can't use auto brightness in the house because of this issue and its pretty annoying.
Sent from my SM-G900P using XDA Premium 4 mobile app
I guess the brightness isn't the best when in certain areas, but I can't really argue. The phone itself is perfect and the brightness issue isn't a big deal for me.
I use Lux. Got it for am older phone. Works well for this one too
Sent from my SM-G900P using Tapatalk
Just got my Note Edge 2 days ago and when comparing the screen brightness (at max/no auto) it is much dimmer than our note 4. now I am not talking about the super bright setting that occurs when its on auto and outside but instead indoors. I also have been seeing a message in the display brightness settings "UNABLE TO INCREASE THE BRIGHTNESS FURTHER. THE DEVICE IS OVERHEATING" Could this be due to a faulty battery or something else? This is my only complaint with this phone but its a big one especially if i'm receiving this message. Should I return to Tmobile or is it most likely a software glitch. It is very cold where I am at so it has not been out in the sun or plugged in too long. minor use has led to this overheating message usually only seen in the summertime when in the car too long
why you need turn on full brightness? I only use brightness like 20% on that slider. it also save battery.
Sent from my SM-N915T using XDA Free mobile app
I typically enjoy and have always used max brightness and even if i didn't this issue probably shouldn't be happening. It's the fact that i think something is wrong with my new phone already. I want to make sure by asking questions
Yes something is wrong if you're not gaming intensely or something like that. It should never overheat just from full brightness I have the T-Mobile one and I use max brightness all day no problems.
Guys the samsung NoteEdge on lollipop has that issue. Basically you can't switch auto brightness fully off it will control your brightness even if uncheck the box. After weeks of searching and trying I found a kind of solution because I love to see my screen in all his power and brightness. Solution is call "screen filter" can be found in the play store for free. Set the brightness at 100% and switch it on. You'll see the difference.