Slight screen flicker? - Nook Color General

I have a nook color, I was wondering if anyone notices a very slight screen flicker like a low refresh rate? Most people would not notice. It doesn't bother me much but I wanted to see if its normal. I notice it most on a dark grey background at 50 percent or lower brightness.
Sent from my HTC Vision using Tapatalk

Yes! finally someone that notices it! I have been posting this on other forums. I notice it too on dark backgrounds with about 20-40% brightness, Not sure if it can ever be fixed with an update, but it is sometimes annoying, although not highly noticeable.

I have worked with computer enough that I can tell the refresh rate of a crt just by looking at it. If its normal I am not to worried I justed wanted to know if it was defective because ill switch it out before I root it.
Sent from my HTC Vision using Tapatalk

I get the same thing, very noticeable when you are changing the brightness setting. I use the lowest brightness to read an eBook, and I can really notice the flicker when I lower the brightness, but I can notice it when I get back to the reading screen.

I see it on darker images...its so subtle I ignore it.
Sent from my NOOKcolor using Tapatalk

I still have mine stock... but I see it as well.
Anyone that has loaded any other apps notice it in those apps? i.e. does it flicker noticably in Angry Birds? or other apps?
thanks.
J

I wonder if it being an IPS screen has anything to do with it. It doesnt bother me to much but causes more eye strain than reading from my htc g2. You would think they would make sure an ebook reader doesnt flicker. oh well i can deal with it.

sdelcegno said:
I wonder if it being an IPS screen has anything to do with it. It doesnt bother me to much but causes more eye strain than reading from my htc g2. You would think they would make sure an ebook reader doesnt flicker. oh well i can deal with it.
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It's not the screen, per se, but the LED's that are lighting it up. From what I've read, LED's can't vary output with respect to voltage (they're not dimmable), so you have to pulse them very fast to change the output. I assume that the lower the "level" the more the LED is off vs. on, hence the flicker.
Dang I can't post links yet...
Go to Wikipedia, and look for :
/wiki/Backlight#Flicker_due_to_backlight_dimming
I'm pretty sensitive to this, but haven't noticed it on my iPad, but apparently it does it as well. I was wondering why the stock lowest brightness levels were so friggin' bright - probably at the threshold of flicker. You can dim more in a browser or ebook app, which is where I see reports of flicker.
Go to Discussions dot apple dot com
/thread.jspa?threadID=2398784
Another reason why I like my old CCFL IPS 12" ThinkPad X32!
-Dan

While you can dim an LED by limiting the current (either via inline resistors or with constant current drivers), you can only do so to a degree. Below a certain current, they will simply not light even though the current goes through the LED. On high performance LED's this is still at a pretty bright level. So instead you use PWM (Pulse Width Modulation) and vary the duty cycle to brighten and dim the LED. As the PWM is at a fixed frequency, with more or less of the cycle being lit or unlit, once the unlit portion becomes substantially longer than the Lit part, you can detect the "Flicker" if you are sensitive to it. This is usually particularly noticeable in the "corner of the eye" if you pan you vision across the area and the device gets paned across you field of vision.
This is done on all the new LED tail lights on cars as well and I hate seeing them at night, when they are almost making me nauseous from the flicker.

Good info thanks. Makes sense but wonder why I don't notice on my led backlit netbook. Guess every screen is different.

yea I really wish there was an update to fix this, but i guess it's just the screen, funny how I have never noticed this on any LCD screen I have ever had from computer to TV

three nook colors - my experience with flicker
My first nookColor had screen flicker, also a mind of its own with phantom taps. Nook #2. Did not have noticeable screen flicker but did have a handful of stuck pixels. Took it back and picked up #3. No stuck pixels, but I've got screen flicker on dark colors. Find it strange that nook #2 didn't have te problem with the flicker. I don't like the flicker at all but think it may be timento live with it.

flicker
Has any one returned a flikering nook color and gotten a better one in return?

Hello, I am having a similar problem with angry birds. My screen sometimes will flash different colors and today the screen stayed completely red for 2 or 3 seconds while playing the game. But other than that I love the rooted nook color. Maybe the graphics chip is not powerful enough for this game.

Firmware update
What you described with angry birds is not the problem I am having. Mine is screen flicker. My eye can basically detect the refresh rate with low brightness or in darker colors.
Tried to change it out. Would say that Best Buy is much easier to exchange things at than Barnes & Noble. Eventually they switched mine out and the new one had a dead pixel. They then let me open two more in store in the store all had dead pixels, so did their display model. All presented in the lower right hand corner of the screen. Would be covered up by the black menu bar normally, but visible when the black menu bar goes away.
Anyway I kept my flickering nook, and talked to someone at Barnes and Noble tech support on the phone. He told me the dead pixels were new to him, but they knew about screen flicker issues. He said they would be releasing a firmware update to address this and other problems very soon.
Just wanted to note that none of these nook colors were rooted.

Yes, same here, I have that on my Witstech A81 (resistive screen) too, more noticeable when the battery level drops. Never noticed this problem on my iPhones or iPad though...can't be Android related can it?

glacon said:
What you described with angry birds is not the problem I am having. Mine is screen flicker. My eye can basically detect the refresh rate with low brightness or in darker colors.
Tried to change it out. Would say that Best Buy is much easier to exchange things at than Barnes & Noble. Eventually they switched mine out and the new one had a dead pixel. They then let me open two more in store in the store all had dead pixels, so did their display model. All presented in the lower right hand corner of the screen. Would be covered up by the black menu bar normally, but visible when the black menu bar goes away.
Anyway I kept my flickering nook, and talked to someone at Barnes and Noble tech support on the phone. He told me the dead pixels were new to him, but they knew about screen flicker issues. He said they would be releasing a firmware update to address this and other problems very soon.
Just wanted to note that none of these nook colors were rooted.
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Thanks. I can see the flicker too on gray screens. I have no other issues though (minus a tiny, tiny bit of give on the bottom bezel). I'll wait and hope it gets fixed in an update. I don't have a lot of time to keep exchanging a good unit.

If it is a known issue and a firmware fix is planed, then I am content with my rooted nook. Thanks for this thread.

I took mine back to B&N today to see if replacing it would fix it. Both store displays didn't have any flicker.
They opened two different nooks and they did the same flickering thing.
So I called Nook technical support. He put me on hold for about 5 minutes. He said he checked about 5 nooks and they all flickered. But he hadn't noticed it before.
So, he will put a ticket into the development team to have it looked at.
So, another confirmation that Nook tech support is aware and looking into it.

My first Nook did not display this behavior. I returned it due to creaking issues, and the replacement did display screen flicker.
I'm hoping it's a firmware issue and not a hardware one!
Currently not a big deal though...

Related

flickering screen of NC

I played with my NC nearly one week and I like it. But I want to know dose anyone notice the screen of NC is flickering. If you couldn't understand what I mean, please refer to below video,
http://www.youtube.com/watch?v=iDnBSWF44rM
it is not so obvious in real world as in video, but it is noticeable and uncomfortable. I have ipad with IPS LCD but never find this kind of issue. It like some kind of low fresh rate issue in early PC screen, so I want to know whether it is possible to fix it via adjust screen refresh rate in OS level.
Your comments are welcome!
Mine does that but only on the gray background, otherwise I don't see any flickering.
I exchanged my first NC because of this issue. The salespeople thought I was nuts until I demonstrated it for them. My new one still does it but MUCH more faintly and not all the time. I do believe that Barnes & Noble is aware of it (or at least that's something I read in another thread here somewhere..).
It seems to only happen at middling levels of brightness. My first NC exhibited the issue under very specific settings and times, the brightness had to be set between 20%-40% and I had to be displaying a solid area of mid-range colors. I saw it all the time when the screen would dim to display a menu.
From personal experience, you MIGHT be able to get a unit that's better if you exchange. It does seem to be a very common issue, though. Rumor has it that it might be fixable through a firmware update.. we shall see.
I had a pocket pc with this problem many moons ago...The fix was to adjust a trim pot on the display...
No idea if anything like that would apply here, but just wanted to mention it.
I do have similar problem, could any people advise on how to check the refresh rate and increase it?
Many thanks.
Are you planning on rooting or installing another ROM on your Nook? The overclock kernels fix this issue.
from what I see there in the video, if that is what you are seeing...not refresh rate. Rather it looks like a cycling in the backligt control. Almost looks like the PWM duty cycle is out of wack...would explain why it happens at mid range of the brightness.
My first nook color had this problem, I solved it by leaving the brightness up all the time which seemed to prevent it. I got it replaced for other display issues, and my new one doesn't flicker at any brightness, so yeah it sounds like a defect.
Not a defect. It's a problem with stupid coding in the backlight driver.
They set the PWM (pulse width modulation) rate too low, at 40Hz if I remember right. It's easy to fix by setting it up to 60Hz in the driver, which I did in my old Quickie kernel. Totally gets rid of the flicker, and I've seen no side-effects, nor have any been reported to me.
I don't have the time to keep up with the kernel anymore, and for some reason no other kernel dev has pulled my driver fix into theirs. You might talk to Dalingrin or one of the other devs if you really want it, and put them in contact with me at [email protected] and I can help them get it integrated into their kernel.
Can you link to the github commit?
Tx
Sent from my HTC Vision using XDA App
Hmmmm.... my Nook definitely had the flicker issue on most gray colors, especially at dimmer brightness settings. I'm not using your kernel, but I am using Dalingrin's. I haven't seen flicker in months. Could this issue be limited to the stock ROM only?
911jason said:
Hmmmm.... my Nook definitely had the flicker issue on most gray colors, especially at dimmer brightness settings. I'm not using your kernel, but I am using Dalingrin's. I haven't seen flicker in months. Could this issue be limited to the stock ROM only?
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It appears that way from my experience. I was running the dual boot package with stock and CM7 nightly.
The stock rom flickered very noticeably on greyish type backgrounds. Using CM7 and now Phiremod, the flickering has totally gone away.
Actually the fix is already in init.encore.rc:
Code:
write /sys/devices/omapdss/display0/timings 68000,1024/70/200/40,600/10/11/10
That said, it's going into the driver too.

Does anyone have weird vertical and horizontal lines on the screen?

I just noted (pardon the pun) that there are lines vertical ans horizontal lines when displaying white. This is my second phone. I went back to cpw and changed this one has similar horizontal lines. Its very very very faint, but I can see it. Im not sure why, it is because of the AMOLED screen, how it works?
Very annoyed. what can i do? every phone CPW has cant be faulty?
sharp910sh said:
I just noted (pardon the pun) that there are lines vertical ans horizontal lines when displaying white. This is my second phone. I went back to cpw and changed this one has similar horizontal lines. Its very very very faint, but I can see it. Im not sure why, it is because of the AMOLED screen, how it works?
Very annoyed. what can i do? every phone CPW has cant be faulty?
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I've only had mine a day but cant see any lines like you've mentioned... maybe a bad batch they got in? Maybe something to do with the S-pen's digitizer screen, i assume that will have some form of grid to it
AMOLED seems to have weaknesses at low brightness levels.
Some have seen very faint lines .
Also on minimum brightness some reported a faint changing of the hue of the display.
The screen is also very bright (whites) on min brightness.
If you display a greyscale step pattern black is absolute black but
others that should be near black are too bright.
http://www.execulink.com/~impact/docs/utils/StepGray16G.jpg
I think its just the AMOLED tech but check the display thread too.
In normal use the screen is amazing,
all technologies seem to have good and weak points if you look for them.
You are not the only one with this problem. I'm on my third galaxy note now... The first one had dead pixels and the right side was darker than the left side. The second one had much more dark horizontal and vertical lines and smudges. The third one at first had very faint lines and smudges, but it is becoming more visible now. There are several threads about this issue on this forum.. My guess is that these problems are pretty widespread (more or less visible on some gnotes) and that there were some bad batches or that the Amoled technology is the problem. Would love to hear the reason to these issues from Samsung.
No lines on mine. White is white and everything shows up excellent.
Sent from my GT-N7000 using xda premium
ITPiraten said:
No lines on mine. White is white and everything shows up excellent.
Sent from my GT-N7000 using xda premium
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So you tell me you don't have banding at all?
No ****ty black-grey in videos?
MartijnMM said:
So you tell me you don't have banding at all?
No ****ty black-grey in videos?
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Depending on the source if I'm watching say the end credits (white words on black screen) they get like a greyish glow around them
AMOLED limitations, ppl!
MartijnMM said:
So you tell me you don't have banding at all?
No ****ty black-grey in videos?
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If you disable the automatic light control and just snap the backlight up from 0% to anything above, you will not see any grayish things in video on the Note. I don't have this problem, but I've heard that some people have had to do this to solve this issue.
I don't have any bandings or strange lines anywhere on the screen. It looks as good as my Galaxy S II and Galaxy Tab. I haven't seen anything out of the ordinary (considering the limitations of the AMOLED screen).
There have been concerns about the lines on the white though. I don't have any of those on mine, but it seems some screens show up this fault. I don't know how to solve this issue and would recommend returning it as soon as possible.
Using the recommended gray test on the Note didn't show up anything but a solid grey screen on mine, although I've heard much people have dark spots all over. It might be something about where the phone was manufactured, or when.
My Note have never had anything wrong with the screen or anything else. The only problem I've ever had is applications that use 16 bit color instead of the Notes 32 bit. This will make color look strange at times, but it's totally normal.
Note that this isn't something wrong with the hardware, it's merely a software problem that will be solved as soon as ICS is released.
ITPiraten said:
If you disable the automatic light control and just snap the backlight up from 0% to anything above, you will not see any grayish things in video on the Note. I don't have this problem, but I've heard that some people have had to do this to solve this issue.
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Check this video, you REALLY have no artifacts?
I don't have any bandings or strange lines anywhere on the screen. It looks as good as my Galaxy S II and Galaxy Tab. I haven't seen anything out of the ordinary (considering the limitations of the AMOLED screen).
There have been concerns about the lines on the white though. I don't have any of those on mine, but it seems some screens show up this fault. I don't know how to solve this issue and would recommend returning it as soon as possible.
Using the recommended gray test on the Note didn't show up anything but a solid grey screen on mine, although I've heard much people have dark spots all over. It might be something about where the phone was manufactured, or when.
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Lines/spots are due to ****ty quality control, this is just a matter of luck.
My Note have never had anything wrong with the screen or anything else. The only problem I've ever had is applications that use 16 bit color instead of the Notes 32 bit. This will make color look strange at times, but it's totally normal.
Note that this isn't something wrong with the hardware, it's merely a software problem that will be solved as soon as ICS is released.
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I have yet to see ANYTHING with more then 65k colors, even in the browser.
All i see is some VERY clever dithering very hard to see due to the high resolution.
Coming from the HD2, I'm really disappointed, nothing gained in 3 years (well, more pixels, so harder to see the flaws).
I took 3 picture with a green gradient:
1) 1280width, so basicly 1280 levels of green, but 24bit only shows 255.
2) 255width, so basicly 255 levels of green, 24bit.
3) 64 width, so basicly 64 levels of green, 16bit.
They all look the same to me, in browser and in gallery. I see dither in each of them. This tell me the whole screen is 16/18 bit only.
Maybe the PenTile is playing tricks with me...
Or the grainy screen lets me think its dithered...
i am facing a similar problem..whenever i apply some photo having a lot of black in it as my lock screen image..there seems to be some horizontal gray lines in it..but when i look in the gallery the black is pure black (no horizontal gray lines at all)...is there any problem in the software only ? or is it something regarding the screen?

[Q] Random Dimming and Heavy Greenish Tint Issues?

Hello all. So I LOVE my Samsung Focus S that I purchased shortly after Thanksgiving Day...all except for one problem. My phone seems to dim permanently out of no where and nothing I do will correct it back to it's normal brightness except for restarting the phone. Automatic Brightness is off and the "Auto Display Intensity" in the Extra Settings category is off. Now I don't know if this is something that specific to Windows Phone or Samsung Focus S particularly? I'm going to take a guess and say it's on the Samsung Focus S that exhibits this behavior. I also can't figure out if it's a hardware failure or a software failure. I'm beginning to think it's a specific update that is used to update your "Extra Settings". I don't know at this point. I just want to know if others have this problem.
The 2nd issue is not so much a problem now but a concern. My first Focus S had a VERY HEAVY greenish tint to it that was immediately noticeable at the lightest of viewing angles. To give you an example of how bad it was, my buddy was looking at a picture of oranges he took with his iPhone4, I thought they were lemons from the side. I went to an ATT store near me and noticed the Galaxy S II exhibited this behavior as well but the Focus S on display did not. I quickly concluded it was a defective screen as it was REALLY noticeable. My buddy gave me a call and told me he was at an ATT store across town and noticed it on another Galaxy S II as well. I made the employee take out two brand new Focus S' and chose the best looking one. They both looked identical, although the one on display had an edge over all of them. Thing is, ALL of the ones I've seen have a very slight green/blue tint to them. Is this normal with Super AMOLED Plus? Is this the Gorilla Glass Coating? I love the colors and contrast on this phone but to be honest the brightness and viewing angle leave something to be desired, more-so the viewing angle. Sorry for the long post!
I just looked at some pictures of oranges to test this. They look nice and orange do me. at an angle the entire screen starts to lose its pop. But I would not call it green more so just dimmer. Can't complain with the blacks...if only more sites background was black lol.
at an angle the entire screen starts to lose its pop.
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Would you mind doing me a favor and looking at different viewing angles on a predominantly white screen? Every phone loses it's composure a bit as the viewing angle is more and more off but I've never seen them turn a different hue. Dim a bit like you said? Yes. I looked online to see if anyone else notices this bluish/greenish tint and many do but more notice it on the AMOLED screen though a few did complain about the Super AMOLED Plus. Thank you!
interresting
Ive been running the focus s since it came out and never noticed this "tint" issue...till today. a simple image of pure white, when viewed from above is fine, but as you change the view angle so does the white begin fade into the bluish haze.
now youre all probably going to hate me but i have a titan too. when i pull the exact same image, it does not fade into blue haze. my suspicion is one of two thoughts: a) the super amoled screen samsung uses has this side effect. b) the glass samsung uses creates this effect.
personally its not a deal breaker for me as i really enjoy the clarity of images and color the samgsung has to offer. that said, the titans inability to go true black are more noticable than a slightly bluish white. but thats purely personal prefence.
FWIW, ive tested red, green, and blue matching images. the only difference i see between the two is a decreased viewing angle on the thc in all aspects. screen display differences is the likely cause.
I can see the blue/green from those angles on white screens
kinda ugly actually
still a few days left to return and get the titan....
now youre all probably going to hate me but i have a titan too. when i pull the exact same image, it does not fade into blue haze. my suspicion is one of two thoughts: a) the super amoled screen samsung uses has this side effect. b) the glass samsung uses creates this effect.
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It's good to see you have a Titan. The Titan is a pretty nice phone. Viewing angles seem quite good and the whites are SUPER bright. It's just the colors and blacks that suffer. Nice to know you can compare them though.
I can see the blue/green from those angles on white screens
kinda ugly actually
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Hey Alright, I'm not crazy. Heh. I'm going to run to a couple of more ATT stores and see what their display units look like. My buddy just got a GSII and he says he doesn't see it, so I'm going to investigate it as well.
BTW, I spoke to someone at Samsung online and he seemed to think it was "normal" and was caused by a Super AMOLED Plus characteristic. Unfortunately I didn't believe a lick he was telling me.
I'm off to find the perfect display! Wish me luck.
i went back to the store
they want to charge me $35 to restock what I have ^^ - and cant seemed to be talked out of it....
the display Focus S had the same exact issues
as does the GSII/SkyRocket from what I could tell
the Titan's whites make the Focus S whites looks blue - but the Focus S blacks look the Titans blacks look grey
and the color palettes are so radically different - for themes the green on the Titan looks like the lime on the Focus S, and the Titan has nothing that can compare to the green on the Focus S - its ridiculous the difference in the saturation and vividness - I can see what people say about the Titan producing more realistic images - but at the end of the day for most things the Focus S is just better looking, who cares if its accurate?
i imagine using the Titan for a while you would get used to it, but side by side it looks paltry in comparison
to be honest the iPhone display looked pretty good! - just too damned small after using a 4"+ sized display - I could never use something that small after using what I have
So I went to ABT Electronics today and looked at their Focus S. It's funny, all of these places, including the Apple store choose the most PERFECT displays they can find in their inventory to show to the public, when in reality your results can vary greatly. For example, the Focus S at ABT had a whiter/bluer screen than mine in terms of whites. It wasn't a huge difference but it was noticeable. Now I want a new whiter screen. My screen seemed buttery compared to the one I saw. We'll see how successful I am. I know I may sound picky but if I'm going to keep this phone for the next 2 years, I want it to look the way I want it.
I also checked out others with the same 4.3" Super AMOLED Plus and I didn't really see much of a green tint to them. In fact one looked yellowish directly and turned whitish on the side. Weird.
OLEd is still a newer technology, compared to LCD - guess there are still some kinks to work out
Yeah, a problem with AMOLED is a slight bluish hint but I don't believe the screen is a PenTile one.
The dimming has been a bit aggressive, I just usually cover the proximity sensor with my hand and let it work again.
Has anyone noticed a flicker (then on) when you unlock the Focus S screen? Sometimes the screen instantly brings up the lock screen sometimes a second after the flicker.
Alright guys. Back to one of the original topics of the Focus S randomly dimming? I think I figured it out. My phone is over heating and the phone is dimming to try and cool it down. No error messages of overheating or anything. I noticed it today when I was playing games on my phone while charging. My phone was pretty warm. Now up until this point, my phone had not dimmed randomly for a week or so, but this morning? BOOM. Dimmed on me. So it hit me. Screen Dimming + Warm Phone = Overheating. I put the phone down on the cold floor to cool down for 10 minutes. Turn the screen back on and guess what? Original Brightness is back.
Either I exchange my phone again or return it all together. I'm in a bind because I can't get the HTC Titan for the same price I got the Focus S for (Free with No Activation).
Has anyone noticed a flicker (then on) when you unlock the Focus S screen? Sometimes the screen instantly brings up the lock screen sometimes a second after the flicker.
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Click to collapse
I have not noticed this at all.
i am in the same boat
almost potentially worthwhile holding out for a Nokia set (perhaps the 900/850)
i actually think I will keep the Focus S to be honest with you
in a year or a year and a half, call up Att and see what they will work for me if I really want to - I have heard lots of success stories about calling them up and getting very discounted phones deals
after revisiting the store - the titan screen looks like **** (IMO except for the whites) compared to the Focus S - and its just too damned big - the Focus S IMO is the perfect size
and all the Android GUI overlays suck ass - so no way I get a droid - and I will certainly not pay $100 for a year old iPhone.
**this fixed mine** random dimming and tinting
Don't throw anything because I just skimmed over the thread before I am responding. I have the Focus S and had that problem. I corrected it by going to "settings>extra settings" and turning off the "Auto Display Intensity" to make it stop adjusting. Unfortunately, that setting defaults to "On" every time the device is restarted. So you have to remember to turn it off. Maybe everybody thought of this, already, and your device does this, anyway, but mine is perfect with this setting off. So, I hope this helps!
matt
livejazz said:
Don't throw anything because I just skimmed over the thread before I am responding. I have the Focus S and had that problem. I corrected it by going to "settings>extra settings" and turning off the "Auto Display Intensity" to make it stop adjusting. Unfortunately, that setting defaults to "On" every time the device is restarted. So you have to remember to turn it off. Maybe everybody thought of this, already, and your device does this, anyway, but mine is perfect with this setting off. So, I hope this helps!
matt
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I had to use the option in the "Brightness" page under Settings. The option on the Extra Settings page applies only when it is set to a white background.
Hopefully a future update will address this and improve the auto dimming. For now, though, it's set to bright all the time.
U only need to press the power button to let the phone go to sleep, then press power button again and almost immediately the custom brightness u set will be back.
Sent from my SGH-i937 using Board Express
Well the dimming issue hasn't happened to me in quite a while now. I decided to keep the phone. The fact that the display wasn't perfect wasn't enough to make me want to return the phone, especially since I got it for free with no activation fee on a 2 year contract. In the meanwhile, I'm just enjoying it. Funny though, Now that I've got a 4.3" screen, I want MORE. Bring on the 4.7"!
Jibberish18 said:
Well the dimming issue hasn't happened to me in quite a while now. I decided to keep the phone. The fact that the display wasn't perfect wasn't enough to make me want to return the phone, especially since I got it for free with no activation fee on a 2 year contract. In the meanwhile, I'm just enjoying it. Funny though, Now that I've got a 4.3" screen, I want MORE. Bring on the 4.7"!
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After an Inspire and Focus S, I find the 4.7" display of my Titan too large to easily type in.
jeremyshaw said:
After an Inspire and Focus S, I find the 4.7" display of my Titan too large to easily type in.
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I honestly only find it more difficult in landscape mode. Portrait mode is awesome though. I can't stop hitting the "a" button when trying to turn on caps lock. It's really annoying.
Jibberish18 said:
Well the dimming issue hasn't happened to me in quite a while now. I decided to keep the phone. The fact that the display wasn't perfect wasn't enough to make me want to return the phone, especially since I got it for free with no activation fee on a 2 year contract. In the meanwhile, I'm just enjoying it. Funny though, Now that I've got a 4.3" screen, I want MORE. Bring on the 4.7"!
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Having had 3 Samsung Amoled phones (Galaxy S2, Skyrocket, Focus S) and a SAMOLED (Galaxy Note) I will say that Samsung doesn't display true whites, it's always blueish. As far as the dimming, Go to "Settings" > Exta Settings > Use Auto Display (Turn it off, however; it seems to enable itself after changing the theme from light to dark or vice versa, as well as after a reboot.)
tahpics said:
Having had 3 Samsung Amoled phones (Galaxy S2, Skyrocket, Focus S) and a SAMOLED (Galaxy Note) I will say that Samsung doesn't display true whites, it's always blueish. As far as the dimming, Go to "Settings" > Exta Settings > Use Auto Display (Turn it off, however; it seems to enable itself after changing the theme from light to dark or vice versa, as well as after a reboot.)
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Click to collapse
I believe all the phones you had, had a SAMOLED + display no? Also, I checked to see if changing the theme from light to dark turns the Auto Display feature back on and for me it does not. As for my dimming issue, it only seems to happen when the phone is plugged in and the battery is a bit warm.
Overall, I like this phone but I also don't. The display is quite delicious really. I've had it on half brightness for a few days now just to see how it looks to me and today I finally put it back to full brightness and the colors really are gorgeous. It's not perfect but I've learned to look past it I guess. Thank you for the reply.

Are there no more screen issues?

I haven't seen people talk about screen issues in a long time. Is this finally resolved?
what screen issue? no issues with the screen here, and i got mine in november.
I had a screen issue where half the screen tint was yellower than the other half. I held off on an RMA. It corrected itself overtime. 64GB Midnight Blue direct from Motorola.
I don't doubt that there were screen issues and I'm sure some owners did have significant problems, but my take on the whole "screen issue" topic was that it was exaggerated. I ordered my device (64GB MB) in December and got it in January and have had no screen issues. AMOLED screens are prone to burn in/image retention, and people are more likely to post if they have a problem rather than no problems. When people need a completely grey screen to notice retention/burn in to complain about they are just looking for something to complain about.
I had the screen issue where 1/2 my screen would freeze. My RMA has been fine and I received it back in December.
Pilz said:
I had the screen issue where 1/2 my screen would freeze. My RMA has been fine and I received it back in December.
Click to expand...
Click to collapse
Friend of mine had the same issue couple times but then it stopped and now is working fine.
Did someone figure out what was the problem?
Just bought my nexus on Saturday and I am experiencing this issue. What's the likelihood of it being just a software issue? Don't want to exchange it if there's a software fix.
From reading past threads, I know of three 'screen' issues.
1. pink/salmon coloring on low brightness
2. split screen jumbling/distortion
3. burn in/image retention
My phone was manufactured 1/15/2015.
Specifically ordered from tmobile, so midnight blue.
1. I don't have any pinking/salmon tint on lowest brightness. I use the lowest brightness by default and I have looked at a pure white background. This is certainly a more subjective issue.
2. I don't have the split screen bull**** I've seen. That's clearly broken and a hardware issue so send it back for an RMA.
3. Remains to be seen on my phone. I went ahead and disabled the softkeys, and added pie control just in case. I don't think this is 'fixable'.
I have noticed that the pink/salmon coloring on lowest setting varies from one rom to the other. No issues on stock, or stock based Roms. Definitely see it on anything I've flashed that was AOSP built or CM.
Just my experience.
I got my 64gb Midnight Blue yesterday and I've noticed some fine vertical and horizontal lines on the screen.
Its especially visible on white/grey or solid colour images. When scrolling a webpage the contents move but the lines stay stationary. I have a very similar issue as whats shown in this video:
https://www.youtube.com/watch?v=z9jKKzB4NUQ
daisun said:
I got my 64gb Midnight Blue yesterday and I've noticed some fine vertical and horizontal lines on the screen.
Its especially visible on white/grey or solid colour images. When scrolling a webpage the contents move but the lines stay stationary. I have a very similar issue as whats shown in this video:
https://www.youtube.com/watch?v=z9jKKzB4NUQ
Click to expand...
Click to collapse
Sadly a by product of AMOLED. I've seen this issue a lot worse on older phones like the early Galaxy S'.
You can probably try to get an RMA, but I suspect that this issue is going to be present in some mild way on most devices.

How to prevent amoled burn in?

Every amoled screen I had was burned after some time. Mostly on the status bar. Once it was WhatsApp.
This time I want to prevent or delay it as long as possible. What recommendations do you have?
Never understood how people managed with burn ins. Well, stop watching a static picture with 100% brightness for 5hrs in a row is a good start.
i have owned more than a dozen samsung products with amoled screens, never had burn in on one of them. I always keep the screen very bright because my eyesight isnt that great. the one lg amoled phone i owned had terrible screen burn
The factors involved are: heat (ext), brightness (curr), uneven degradation rate of each color (rgb), persistent elements, and age (of panel). If half a screen is black and the other is blue, at max brightness, the blue subpixels are under the most stress. Their decay rate will overshadow the resting blue lights - plus that of green and red.
5yrs from now you're going to look at an all white image. Half of it will look awful.
Thanks guys, but not really helping, are you?
Fall asleep once with your phone under your face and you'll have a burn in your amoled screen. Probably many other ways.
This is a common issue that most people don't even notice.
I get how it happens. I'm looking for ways to prevent it.
Setting a screen timeout is helpful
Had every Samsung for years and never had this, so I've no idea.
Maybe some people don't have a screen timeout and fall asleep sometimes dunno
Sent from my SM-G975F using Tapatalk
Do i remember wrong, but didint Samsung add pixel shifting at least for their launcher elements which stay at same of screen all the time?
ivicask said:
Do i remember wrong, but didint Samsung add pixel shifting at least for their launcher elements which stay at same of screen all the time?
Click to expand...
Click to collapse
I don't remember that. I know they had it on their Plasma TVs. I thought the Pixel phones with OLED screens also had it but don't know about Samsung phones. I do think that 99.9% of people that use a phone normally will never experience burn-in for the time they own the phone.
Use full immersive mode to hide the status bar and the top and bottom. Turn off auto brightness because if you leave it on and go in sun the brightness get high.
Screen time out to 15 seconds
Leave the brightness slider 50 percent or less
If you use aod make sure to flip the phone so it turns off when not using it
Use youtube in full screen if you use it a lot
These are my tips as I've had my screen changed 4 times due to burn in on my note 8.now using these methods my screen so far has no burn in
For me it's always was the top status bar that would burn in
But now I should never experience burn in ever again now I've actively tried to avoid it
Everyone I know that swears blind they don't have burn and have never had that issue on any device I immediately grab there phone and look closely on a complety grey background and 100 percent of them have status bar burn in at the top at the very least
No way am I turning stuff off to avoid something I've never seen
900 quid to have to suffer immersive mode utter lols, if I have to did that I'll sell it
Sent from my SM-G975F using Tapatalk
I also honestly don't know what you're talking about. I've had s3, s5, s7, s9 and now to s10. Never had anything of the sort and since s7 I've been using AOD. Nothing happend. For the love of me I can't imagine how you may have had anything wrong with the display....
haircut123 said:
Use full immersive mode to hide the status bar and the top and bottom. Turn off auto brightness because if you leave it on and go in sun the brightness get high.
Screen time out to 15 seconds
Leave the brightness slider 50 percent or less
If you use aod make sure to flip the phone so it turns off when not using it
Use youtube in full screen if you use it a lot
These are my tips as I've had my screen changed 4 times due to burn in on my note 8.now using these methods my screen so far has no burn in
For me it's always was the top status bar that would burn in
But now I should never experience burn in ever again now I've actively tried to avoid it
Click to expand...
Click to collapse
Exactly, it's always the status bar. I think there is no immersive mode on s10+ yet, but I removed all the icons.
haircut123 said:
Everyone I know that swears blind they don't have burn and have never had that issue on any device I immediately grab there phone and look closely on a complety grey background and 100 percent of them have status bar burn in at the top at the very least
Click to expand...
Click to collapse
THANK YOU
I'm pretty sure many think they never had a burn in on their precious amoled screen, but they actually had.
Well they probably aren't looking for it that closely
Sent from my SM-G975F using Tapatalk
lumiden said:
Every amoled screen I had was burned after some time. Mostly on the status bar. Once it was WhatsApp.
This time I want to prevent or delay it as long as possible. What recommendations do you have?
Click to expand...
Click to collapse
Lol, sorry to see everyone busting you up on this....because you know, it's always more helpful to give someone a bad time to ensure a post count increment, than to be useful and offer up some insight.
Well, I have had screen burn in occur on 3 different galaxy phones. Not from falling asleep, not from being clueless...but from using my phone with games. 2 were mine and 1 on My wife's..hers occurred from youtube.
I used to play clash of clans tons, got burn in from the smaller stats numbers at the top- over time...But replaced the phone no sweat. Verizon insurance took the phone as a defect, noted as screen image ghosting, no charge. I just didn't realize that it was an issue playing, but it was over time. I think it was an s6. The reps in the store were as surprised as I was that it had occurred.
Different device & model, S7 , but same thing occurred, not in the same game either...This time with clash royale- the towers and little cloud icon burned in from too much playing and too often, apparently. I thought I had been a bit more careful, but i think it was the frequency in which I was playing versus overall time.
This time I simply contacted support in the chat about the ghosting, they replaced it again as a defect, no charge.
My wife's occurred on the s7, hers was the top bar because of YouTube, too much & too often. So, did the same for my wife's phone through Verizon insurance, they replaced as a screen ghosting defect.
After I noted what was going on, she made adjustments, didn't happen again to either of us.
Both of us are on the 10s now and very aware this can occur. So, you just need to make sure you're not on those static images or bars or icons for either long periods or frequent shorter periods...it takes time, but it happens, despite popular misconception.
It is only really noticable on a white background, like when looking at mostly blank new tab in chrome.
On the last device, the S7, I made sure to cut the amount of time spent on static images, especially the games. I still kept the brightness always max during the day, nights it was at the lowest setting.
And yes, I kept my settings the same after the replacement, just made adjustments to my gaming approach. I didn't want to baby the phone screen settings, shouldn't have to. No issues on that one after adjusting my approach.
So, it's certainly possible to avoid and I bet there's many out there that use certain apps for long periods and frequently just do not really notice it may have occurred, even if slightly.. and I'm taking heavy users.
A note app with a clean page or white blank background reveals it, most of the time you're not using that, so ignorance is bliss...and makes It's easier for folks to bust on someone else for asking about screen burn in because they themselves are simply clueless it even remotely occured with them.
Heavy user naysayers, check your old phones, just for the heck of it... and then keep the findings to yourself because no one actually cares about you being right or wrong.
Anyway, it was an inconvenient lesson at the time,for me but good to know and learn from. Didn't cost me much but time, as it just took up time set up the phones again.
I know Samsung isn't too concerned about it or they wouldn't have preinstalled games on the phone (ie. solataire).
Just do your best to adjust your screen settings, like those that mentioned, if you're into that. Or simply adjust your apps/usage habits.
Don't overlook the Digital Wellbeing settings on the S10...that may also help you target certain apps with a timer also. Might be something useful for you.
Hope that helps some.
Sent from my SM-G973U using Tapatalk
sainthooligan said:
Lol, sorry to see everyone busting you up on this....because you know, it's always more helpful to give someone a bad time to ensure a post count increment, than to be useful and offer up some insight.
Well, I have had screen burn in occur on 3 different galaxy phones. Not from falling asleep, not from being clueless...but from using my phone with games. 2 were mine and 1 on My wife's..hers occurred from youtube.
I used to play clash of clans tons, got burn in from the smaller stats numbers at the top- over time...But replaced the phone no sweat. Verizon insurance took the phone as a defect, noted as screen image ghosting, no charge. I just didn't realize that it was an issue playing, but it was over time. I think it was an s6. The reps in the store were as surprised as I was that it had occurred.
Different device & model, S7 , but same thing occurred, not in the same game either...This time with clash royale- the towers and little cloud icon burned in from too much playing and too often, apparently. I thought I had been a bit more careful, but i think it was the frequency in which I was playing versus overall time.
This time I simply contacted support in the chat about the ghosting, they replaced it again as a defect, no charge.
My wife's occurred on the s7, hers was the top bar because of YouTube, too much & too often. So, did the same for my wife's phone through Verizon insurance, they replaced as a screen ghosting defect.
After I noted what was going on, she made adjustments, didn't happen again to either of us.
Both of us are on the 10s now and very aware this can occur. So, you just need to make sure you're not on those static images or bars or icons for either long periods or frequent shorter periods...it takes time, but it happens, despite popular misconception.
It is only really noticable on a white background, like when looking at mostly blank new tab in chrome.
On the last device, the S7, I made sure to cut the amount of time spent on static images, especially the games. I still kept the brightness always max during the day, nights it was at the lowest setting.
And yes, I kept my settings the same after the replacement, just made adjustments to my gaming approach. I didn't want to baby the phone screen settings, shouldn't have to. No issues on that one after adjusting my approach.
So, it's certainly possible to avoid and I bet there's many out there that use certain apps for long periods and frequently just do not really notice it may have occurred, even if slightly.. and I'm taking heavy users.
A note app with a clean page or white blank background reveals it, most of the time you're not using that, so ignorance is bliss...and makes It's easier for folks to bust on someone else for asking about screen burn in because they themselves are simply clueless it even remotely occured with them.
Heavy user naysayers, check your old phones, just for the heck of it... and then keep the findings to yourself because no one actually cares about you being right or wrong.
Anyway, it was an inconvenient lesson at the time,for me but good to know and learn from. Didn't cost me much but time, as it just took up time set up the phones again.
I know Samsung isn't too concerned about it or they wouldn't have preinstalled games on the phone (ie. solataire).
Just do your best to adjust your screen settings, like those that mentioned, if you're into that. Or simply adjust your apps/usage habits.
Don't overlook the Digital Wellbeing settings on the S10...that may also help you target certain apps with a timer also. Might be something useful for you.
Hope that helps some.
Sent from my SM-G973U using Tapatalk
Click to expand...
Click to collapse
Thank you for your insight. I wouldn't be able to return it if it happens.
I'm also worry the AOD can cause burn in. I never used it before because I had a notification led...
I know it moves around, but is that enough? I also turn it off 8hs a day.
lumiden said:
Thank you for your insight. I wouldn't be able to return it if it happens.
I'm also worry the AOD can cause burn in. I never used it before because I had a notification led...
I know it moves around, but is that enough? I also turn it off 8hs a day.
Click to expand...
Click to collapse
You can set the schedule for the time for the AOD is active and either use the AOD auto brightness option or set the brightness lower, if that helps you feel more confident with it. The movement should help avoid issues.
FWIW, I used AOD with my previous phone without any issue and I anticipate the same with this one.
My burn in issue was only with the games & YouTube as noted.
Sent from my SM-G973U using Tapatalk
This is my main issue with AMOLED screens. They look nice but they wear out. The nature of Android means they will wear out unevenly which is why people see burn in. The wearing out of your screen is cumulative. Meaning that it isn't like an old CRT TV where it would take weeks of a static image to burn in but just showing the same image over time day in and day out. The only way to prevent it is to use the entire screen with moving images, like full screen movies, so that the panel wears evenly.
The status bar and navigation bar tend to be on the screen all the time those images will burn in first. Dark mode can also cause issues because if the area is dark it isn't being used and if it isn't being used it will look brighter than other areas that were used more frequently. The s10 has a full screen mode option for some apps. Some apps like Netflix will show the full screen movie even around the camera cutout and that is ideal. Youtube will also allow you to zoom in and show the video around the camera. cutout Chrome and the Samsung browser keep the status bar but it will change colors based on the site and if the bar is white it will invert the status icons which will help keep the panel wearing evenly. I have the dolphin browser which runs in full screen but the top portion of the panel is not used so that is less than ideal.
Auto brightness can be used but in the bright sun that panel is wearing much faster. The screen time out should be set to 15 seconds. These panels are designed to look great but not be super durable and in many cases that's what Samsung wants. They benefit when you have to buy a new device. It's sad to say but its business.

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