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Hi all,
Got the Galaxy S for a month, pretty happy with it. Yesterday, the brightness suddenly gone up. The worst part is the display lost the gradient scaling and it is replaced by colour bands!
Apps like the stock video player for example. Before the video is played, you can see the grey control bar at the bottom covers by a lot of colour bands. The colour of the movie is all washed out as if you were playing it in 8 bit colour mode. Where the same avi played okay before, crystal clear and colour was rich.
Same thing with the charging screen while the phone is off. You can see the colour bands on the grey area of the shadow of the green battery. Just wondering if anyone has the same problem?
Cheers!
Factory reset :d
Tried all that full factory wipe, data reset, flash to different rom. Nothing works
Then your device's probably faulty. replace it.
Pretty certain it is. I took a screenshot of the video player and it looks fine but on the screen, you can still see those colour bands meters away.
I guess this indicates the LCD is faulty.
romhunter said:
I guess this indicates the LCD is faulty.
Click to expand...
Click to collapse
The galaxy s has no LCD its LED
Ive noticed when you slide down that tray from the top, when closing it mine has MANY TIMES switched to full brightness. But simply tapping the brightness button on the multi widget thingy makes it go back to how I want.
evil-doer said:
The galaxy s has no LCD its LED
Ive noticed when you slide down that tray from the top, when closing it mine has MANY TIMES switched to full brightness. But simply tapping the brightness button on the multi widget thingy makes it go back to how I want.
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Click to collapse
Thats because you can adjust the brightness by sliding your finger accross the notification bar.... doesnt work if you have auto brightness ticked...
talboy said:
Thats because you can adjust the brightness by sliding your finger accross the notification bar.... doesnt work if you have auto brightness ticked...
Click to expand...
Click to collapse
I have auto brightness ticked, sliding still works for me
Standard rom btw...
Sent from my GT-I9000 using XDA App
Hi I have the exact same problem! But I didn't notice it before now wen I saw this thread. But all the colours are just fine when I play a vid, it's just the grey controlbar that is by many stripes of different colours, looks like 8bit colour. But when the vid starts playing its just fine, because it gets transparent. Should I get this phone changed, have just had it a couple of weeks.
Sent from my GT-I9000 using XDA App
Hi Radat,
I posted more info in the other forum including some screenshots. http://forums.whirlpool.net.au/forum-replies.cfm?t=1520586
Hope yours okay. I am going to call Samsung tomorrow.
romhunter,
yup, saw the screenshots, looks like quantization problem i.e. that colours are using fewer bits than normal. For example, RGB screen might use 24 bits per pixel, 8 bits per r/g/b colour, the screenshots seem to suggest only 5 or 6 bits per colour.
Hopefully this is just a software glitch, though you said you already tried factory reset / wipe, could it be a loose cable wire somewhere or maybe a problem with the screen to mainboard connector?
talboy said:
Thats because you can adjust the brightness by sliding your finger accross the notification bar.... doesnt work if you have auto brightness ticked...
Click to expand...
Click to collapse
awesome. theres so many little shortcuts like this ive yet to learn. thanks
On my sgs, there is a green colour attached to to the grey colours, I can see it really good when using Screen test app on the gray scale screen, all grey is sort of green!
romhunter said:
Hi all,
Got the Galaxy S for a month, pretty happy with it. Yesterday, the brightness suddenly gone up. The worst part is the display lost the gradient scaling and it is replaced by colour bands!
Cheers!
Click to expand...
Click to collapse
Just got a brand new device. Used it for about an hour, then the exact same thing happened - out of the blue.
Any possible home-front solutions? Having to take it to be serviced is a PITA for me ATM.
Mine definitely seems to have banding in the video player control pane before the video playback starts. Can someone please post a screenshot of how it should be? I haven't seen the banding issue anywhere else except the battery charging indicator when charging the phone when it's turned off. And as far as I remember they were always like that.
So can someone please post a screenshot of how it should be for me to compare.
I have the same problem appeared after upgrading to Froyo. Brightness increased (even it is high in the lowest setting) and color saturation also increased. As a result, i see bandings or lines where a color gradient exist. I added an example photo from "Samsung Apps" page. You can easily see bandings on the bottom. I see such things in a PC screen if color adjustment is not optimum. So there must be a way to adjust screen saturation and brightness by a software through registry i think. It seems like a software problem. I think it is a very rare problem, i found few people on the web complaining about it. Mostly HTC Desire, which use also Samsung Amoled screen, users complaining about it.
I did everything said on forums to solve it but no way. I flashed many different roms both eclair and froyo, use a software given in HTC forums to change RGB color, changed color settings through video player etc. Nothing worked. Please help
victor79 said:
I have the same problem appeared after upgrading to Froyo. Brightness increased (even it is high in the lowest setting) and color saturation also increased. As a result, i see bandings or lines where a color gradient exist. I added an example photo from "Samsung Apps" page. You can easily see bandings on the bottom. I see such things in a PC screen if color adjustment is not optimum. So there must be a way to adjust screen saturation and brightness by a software through registry i think. It seems like a software problem. I think it is a very rare problem, i found few people on the web complaining about it. Mostly HTC Desire, which use also Samsung Amoled screen, users complaining about it.
I did everything said on forums to solve it but no way. I flashed many different roms both eclair and froyo, use a software given in HTC forums to change RGB color, changed color settings through video player etc. Nothing worked. Please help
Click to expand...
Click to collapse
I looked at ur pic. I honestly dont see any problem with it. What is this banding ur talking about?
Sent from my GT-I9000 using XDA App
Bottom of the screen, around "2010 Samsungs Electronics". This part should be a smooth color transition from blue to transparent but there are circular lines between colors. Is your screen the same.
Another example. The one on the phone looks white on the upper part where a color transition from dark to light black exist and there are visible lines. But normally it was looking like the other picture (taken from notebook screen) before this problem
ah on that screen i already see 8 shades of blue, most be around 4k colors .. bummer though, it's normally a software problem, doubt that a conector has come loose. (but possible if it's a pimped up composite plug with Y/Pr/Pb, .. eh still impossible cos it's getting decoded before that)
Since I've got my Xperia T I have noticed a weird screen behavior I hadn't seen yet in any other android phone, whereas the device adjusts not just the backlighting, but also the contrast and the saturation based on the onscreen content.
I outright dislike it, as it's not seamless - you can actually see them slowly changing while you navigate your android screens, and it's not limited to photos and videos, as someone says. It's system-wide.
Just try closing all tabs in Chrome (remain with the dark chrome background icon), and look at the status bar icons: they are pale white, not bright white. Then open a browser tab and watch the address bar colors (sand, white, and black text), go through all of the shades of grey, before finally settling to the right colors. It's not just Chrome... every time your display shows a dark scene going brighter, you can see it happen.
Couldn't it stick to the max contrast and saturation setting, just like what we see in the photo album?
Alternatively, is there a way to disable the bravia engine and make my screen behave like all other screens?
Thank you for any answer
thenext1 said:
Since I've got my Xperia T I have noticed a weird screen behavior I hadn't seen yet in any other android phone, whereas the device adjusts not just the backlighting, but also the contrast and the saturation based on the onscreen content.
I outright dislike it, as it's not seamless - you can actually see them slowly changing while you navigate your android screens, and it's not limited to photos and videos, as someone says. It's system-wide.
Just try closing all tabs in Chrome (remain with the dark chrome background icon), and look at the status bar icons: they are pale white, not bright white. Then open a browser tab and watch the address bar colors (sand, white, and black text), go through all of the shades of grey, before finally settling to the right colors. It's not just Chrome... every time your display shows a dark scene going brighter, you can see it happen.
Couldn't it stick to the max contrast and saturation setting, just like what we see in the photo album?
Alternatively, is there a way to disable the bravia engine and make my screen behave like all other screens?
Thank you for any answer
Click to expand...
Click to collapse
I never noticed it before but you are right, i see the same effect.
Even if i disable Mobile Bravia Engine in settings... now as i know it a bit annoying.
remoh said:
I never noticed it before but you are right, i see the same effect.
Even if i disable Mobile Bravia Engine in settings... now as i know it a bit annoying.
Click to expand...
Click to collapse
Apparently that setting affects just the Bravia Engine behavior when watching pictures or videos.
I did notice that behavior on my XT screen but i don't think it's a bravia engine issue, i believe is sony stock roms problem. Actually i'm on recCoba's curiosity Rom, wich has the same acreen behavior, but i don't temember too well but i think when i was on jellybam rom the screen was behaving as a regular screen but as i said i can't say it for sure. Someone with a CM bases rom could tell if that happens too on those roms
It has already been discussed -
http://forum.xda-developers.com/showthread.php?t=2020892
Thank you for the heads up
Sent from my LT30p using xda app-developers app
If anyone cares, I made a quick video of the thing in action.
https://skydrive.live.com/redir?resid=75161877A71F52EC!296&authkey=!AOb1Cj-q3GGmAPM
Hi, I love my Xperia T but there is one thing that bothers me. I noticed that every xperia T has that automatic screen dimming when viewing darker media on your screen. For example, when i turn on facebook app, before the actual app opens there is dark grey screen. During that sequence screen gets darker, and when white facebook page pops up you can actually see screen adjusting its brightness to higher "normal" level. That really bothers me especially when gaming. On dark sequences screen gets really dark, and than it takes second or two to adjust normal brightness when brighter sequences appear. You can actually see brightness going down when darker images are displayed, and then back up again when brighter images appear.
So I'm not talking about dimming when overheating or flickering (that second is fixed by jellybean update as I noticed), or etc. And before you ask me I if turned on autobrightness in display settings, it has nothing to do with that.
My question is, is there a way to turn this off because it is really annoying?
naga.nino said:
Hi, I love my Xperia T but there is one thing that bothers me. I noticed that every xperia T has that automatic screen dimming when viewing darker media on your screen. For example, when i turn on facebook app, before the actual app opens there is dark grey screen. During that sequence screen gets darker, and when white facebook page pops up you can actually see screen adjusting its brightness to higher "normal" level. That really bothers me especially when gaming. On dark sequences screen gets really dark, and than it takes second or two to adjust normal brightness when brighter sequences appear. You can actually see brightness going down when darker images are displayed, and then back up again when brighter images appear.
So I'm not talking about dimming when overheating or flickering (that second is fixed by jellybean update as I noticed), or etc. And before you ask me I if turned on autobrightness in display settings, it has nothing to do with that.
My question is, is there a way to turn this off because it is really annoying?
Click to expand...
Click to collapse
Have you unchecked adopt to lightning conditions already?
thrize45220 said:
Have you unchecked adopt to lightning conditions already?
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Click to collapse
Can you read my last sentence before question, please? It has apsolutely nothing to do with that. "Adopt to light conditions" means adopt to light conditions in your sourrounding, not in your screen light conditions.
naga.nino said:
Can you read my last sentence before question, please? It has apsolutely nothing to do with that. "Adopt to light conditions" means adopt to light conditions in your sourrounding, not in your screen light conditions.
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Click to collapse
All i thought it differs to auto brightness thats why i ask it sir. Sorry for the question then
You dont have to apologise. So, the problem is that when you watch darker images, or videos, or just any darker screen on your display, contrast and brightness goes down. And when you switch to brighter screen you can actually see, with your naked eye, brightnes going up. I see that Sony intentionally put that feature, but it is very, very stupid one. There is no point in making dark images even darker with even less contrast. I assume they wanted to achieve better black levels that way, or I don't know, but it is very stupid way of doing black levels more black. And, of course, there is no setting in settings menu tu turn this nonsense off, nice one Sony!
Re: [Q] Xperia T - screen dimming
naga.nino said:
You dont have to apologise. So, the problem is that when you watch darker images, or videos, or just any darker screen on your display, contrast and brightness goes down. And when you switch to brighter screen you can actually see, with your naked eye, brightnes going up. I see that Sony intentionally put that feature, but it is very, very stupid one. There is no point in making dark images even darker with even less contrast. I assume they wanted to achieve better black levels that way, or I don't know, but it is very stupid way of doing black levels more black. And, of course, there is no setting in settings menu tu turn this nonsense off, nice one Sony!
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Click to collapse
This similar annoying ass feature is there in my Spectre laptop. This was supposed to be a battery saving feature and I haven't yet found a way to turn it off. Maybe it's also a way to get higher black levels.
This is the Bravia Engine. Just unselect Settings -> Display -> Mobile Bravia Engine
thedisturbedone said:
This similar annoying ass feature is there in my Spectre laptop. This was supposed to be a battery saving feature and I haven't yet found a way to turn it off. Maybe it's also a way to get higher black levels.
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Click to collapse
Dude, this is definitely not a battery saving mode. There is no need for batery saving mode when displaying dark screen, and the problem occurs when displaying dark images or any other dark media, app or non-app. every single time.
Mad Marty said:
This is the Bravia Engine. Just unselect Settings -> Display -> Mobile Bravia Engine
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Click to collapse
OMG... Mobile bravia engine has apsolutely nothing to do with with that, because bravia engine works only in phones stock apps for viewing videos and pictures, and the effect is not even similiar to screen dimming. It brings more saturated colors and that is all.
Same problem is posted here: http://communities.sonyericsson.com/thread/61560?start=0&tstart=0 and Sony replied "I'm sorry that it has taken so long but I have done some testing now using a later software and I'm not able to replicate the issue that you guys report so I assume it's fixed." It is more than obvious that they like to close their eyes on every single problem that occurs. Thank you Sony for your gorgeous support to your beloved customers. I cant be more sarcastic, of course.
naga.nino said:
OMG... Mobile bravia engine has apsolutely nothing to do with with that, because bravia engine works only in phones stock apps for viewing videos and pictures, and the effect is not even similiar to screen dimming. It brings more saturated colors and that is all.
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Click to collapse
Well, have it your way. But with this kind of attitude, don't be surprised if no-one wants to help you.
Mad Marty said:
Well, have it your way. But with this kind of attitude, don't be surprised if no-one wants to help you.
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Click to collapse
It's not my way, it's the way it is. If one understands what mobile bravia engine is, one could never offered it as a solution to a problem that has nothing to do with it. I'm terribly sorry if I ofended you, and I apologize for my attitude. I'm not mad at you, or anybody else here, I just don't see why would one write something just to be written. I know my T-Rex wery well, and I know there is no "normal" way to turn this dimming crap off, so I posted my question here, and expected that someone of the experts would offer some kind of solution to that. And I got things like "turn automatic brightness off", or "turn mobile bravia engine off" even though I previously mentioned that i tried all that stuff. People are "trying" to "help" me here, and they didn't even read what I've written. I'm really not one of guys that would post a question here just to be posted, I searched the crap out of the internet, and I found apsolutely nothing helpfull. That's why I decided to open this thread, to hear what experts have to say.
Re: [Q] Xperia T - screen dimming
There is already a thread about this. I won't write it again.
Just turn of DLS.
peetr_ said:
There is already a thread about this. I won't write it again.
Just turn of DLS.
Click to expand...
Click to collapse
Thank you very much. I suppose you're talking about this: http://forum.xda-developers.com/showthread.php?t=1909710&page=16
My phone is rooted and I can't change those values. Can you explain me how to change this? I went to that system location via root explorer, but i can't do much from that point. If I try to open it in text editor it says that this is read only and can't be changed.
Thanx in advance.
naga.nino said:
Thank you very much. I suppose you're talking about this: http://forum.xda-developers.com/showthread.php?t=1909710&page=16
My phone is rooted and I can't change those values. Can you explain me how to change this? I went to that system location via root explorer, but i can't do much from that point. If I try to open it in text editor it says that this is read only and can't be changed.
Thanx in advance.
Click to expand...
Click to collapse
If you are rooted, you need root explorer and mount the directoty as RW, then open in text editor
peetr_ said:
There is already a thread about this. I won't write it again.
Just turn of DLS.
Click to expand...
Click to collapse
gregbradley said:
If you are rooted, you need root explorer and mount the directoty as RW, then open in text editor
Click to expand...
Click to collapse
Thank you guys very much! Changed values, and rebooting my phone...everything is fine now, no more stupid dimming. However...I noticed that color adjusment is still visible when changing from dark screen to colorfull bright one. So the dimming is now definitely gone, but that color adjusment is still visible, like it changes contrast a bit, from worse to better, it is clearly visible. Any ideas about that?
I'm uploading a video I recorded with my webcam to get you a closer look. I'll post a link once it's uploaded.
Video will be live here in a couple of minutes: http://youtu.be/fHozO8zGZ1Y
After I managed to turn off DLS, that auto-contrast thing still remains. If you look closely, you'll se that the blue facebook stripe (and everything else) slightly changes its color/contrast when returning from the gray screen. But DLS was much bigger pain in the ass and I'm very pleased with the result od turning it off.
Re: [Q] Xperia T - screen dimming
Why would you want to post it live?
Sent from your backyard...
Slender watches what you do...
-SlenderMan- said:
Why would you want to post it live?
Sent from your backyard...
Slender watches what you do...
Click to expand...
Click to collapse
Didn't mean literally live lol. It is uploaded, processed and watchable now.
I've noticed that my display's brightness automatically increases and gets oversaturated when viewing videos on the youtube and twitch app in fullscreen. When the videos are playing in portrait mode, display is normal but once the video is switched to landscape mode the oversaturation happens and this doesn't disappear even if you switch back to portrait mode...Display reverts back to normal only after exiting the video.
This effect seems to be subtle in lifelike videos but becomes really apparent in gameplay and other animated videos. The twitch streams look so cartoonish that it is impossible to enjoy gameplay streams on my mobile. Fullscreen videos from Chrome browser dont seem to be affected by this.
Is anyone else affected by this? Is there any solution?
Two things I recommend disabling if you encounter this:
- Under display, go to "screen colors/pallet" and change it to whichever color temperature you prefer (automatic is enabled by default)
- Check if you have "reading mode" enabled
AlmostIdiot said:
Two things I recommend disabling if you encounter this:
- Under display, go to "screen colors/pallet" and change it to whichever color temperature you prefer (automatic is enabled by default)
- Check if you have "reading mode" enabled
Click to expand...
Click to collapse
I've already turn off the reading mode and choose screen colors to automatic but its still seems so oversaturated or its just software bug?. But if iam watching it on 1080p its just like hdr video
I was recommending you to disable automatic colors, that's why I believe colors are too saturated, you can change temperature too if you want. Sorry if I wasn't clear.
AlmostIdiot said:
I was recommending you to disable automatic colors, that's why I believe colors are too saturated, you can change temperature too if you want. Sorry if I wasn't clear.
Click to expand...
Click to collapse
Thanks man it work
Does the screen auto brighten on YouTube when watching HDR videos mine doesn't seem to do it and I recall on my older Samsung phones it did
da1e8 said:
Does the screen auto brighten on YouTube when watching HDR videos mine doesn't seem to do it and I recall on my older Samsung phones it did
Click to expand...
Click to collapse
You can check Settings - Display - Adaptive brightness. If it's enabled and general screen brightness is automatically changed in different places, then it could be a YouTube app setting it issue.
It_ler said:
You can check Settings - Display - Adaptive brightness. If it's enabled and general screen brightness is automatically changed in different places, then it could be a YouTube app setting it issue.
Click to expand...
Click to collapse
Go to settings > Advanced features > video brightness
and activate youtube
It_ler said:
You can check Settings - Display - Adaptive brightness. If it's enabled and general screen brightness is automatically changed in different places, then it could be a YouTube app setting it issue.
Click to expand...
Click to collapse
I think what he meant is in older HDR phones while playing HDR videos, it used to automatically set a brightness (only while playing the HDR video) which isn't happening in the S21U even for me! Maybe it's a new thing but ya there's a change