screen flickering - Legend General

got this phone about a month now and its amazing...but there is one thing that i just keep bugging me....its like that i can see screens refresh rate! mostly noticeable on gray area of the pic/anything else, weather screen for example, where goes from lighter to darker scale. cant describe it preciselly, it hard to notice if u dont look carefully, its like that brightness is shaking, waving or whatever. i didnt notice it before(maybe i didnt pay atention) but since i did its just iritating....and im starting to worry seriously. help pls

Im looking at mine and i gotta say i dont see the same. Is it possible you have auto brightness on? (settings, sound display, brightness) Under certain lighting conditions (fluorescent) ive noticed it rapidly change from one brightness level to another and back.

nah, it has nothing to do with brightness settings...its just like refresh rate

Related

Auto screen brightness doesn't work?

When I have my nexus one set to automatically adjust brightness, it doesn't seem to do anything.
I can move it between dark and bright environments and the screen brightness doesn't seem to change at all. Am I missing something or is this feature not working on my phone?
It works fine with mine. I just clicked auto in the brightness setting. Make sure you didn't accidentally change it to a different setting with the settings widget that is by default on the first home page to the right.
works fine on mine yet not a feature i use....i just set it statically.
I find the auto-brightness to be too dim for my liking. It would be great if you could adjust the overall brightness while still maintaining the automatic scaling.
Turns out it does work, it just need to be *really* bright to make it change.
It doesn't change really at all in my office between switching the lights on and off (even though that's a really big change in light levels to me). However, if i go outside, it does get brighter.
As you say though, it does seem to be set a bit low (hence it not brightening up when my office lights are turned on I guess).
If I enable auto-brightness on mine, it seems to constantly vary the brightness in my office. It's annoying as crap and I turned it off. Am I the only one?
It's probably taking a look at the available APIs to see if it's easy to write a quick app to do auto brightness with settings to be able to tweak it.
The auto-brightness feature changes constantly for me as well.
I 'm also having issues of the varying brightness when using auto-brightness -- even though the lighting in my environment has not changed and I avoid contact with the light sensor. It's VERY annoying.
I've since switched to using a static setting for the brightness.
auto brightness was one of the first things i turned off. it was way too dim for me
Not bright enough for me. Doesnt seem to change much.
I do see the variability occasionally. Most of the time it's stable, but it will take spells of shifting up and down repeatedly. Glad to know I'm not alone.
Auto bright annoyed me as well when I first got the phone. Then I realized where the sensor is (top left) and what it was responding to. Depending on where I'm sitting, what light sources are behind me, in front of me but reflecting off of me. It's usually just responding to a light source that's just withing view of its sensor. Also, my hand has shielded the sensor more than just a few times, confusing the sensor.
Now I leave auto bright on all the time, and it more often than not does a good job.
IMHO this is one of the few broken features on the phone. In continuous lighting it jumps from bright to dim to everything in between like a jack rabbit on speed. I still use it to save battery life but it pisses me off regularly.
am also having this problem. it constantly goes much brighter, and then, suddenly goes back to dim.. very annoying... however, the light sensor for calling works well... so, is it a software issue.. hope it gets google's attention and gets fixed in next update...
Bicster_ said:
If I enable auto-brightness on mine, it seems to constantly vary the brightness in my office. It's annoying as crap and I turned it off. Am I the only one?
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+1 so I also manually go between three on the widget
Note that the light sensor is under the glass on the front of the phone. Some cover-all cases cover this, and if you use one of these I assume your phone will remain on the dimmest setting.
In general, while indoors it will remain on the dimmest setting (for me anyway), but rise to the necessary full brightness when in sunlight.
w00yee said:
am also having this problem. it constantly goes much brighter, and then, suddenly goes back to dim.. very annoying... however, the light sensor for calling works well... so, is it a software issue.. hope it gets google's attention and gets fixed in next update...
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There are two sensors, one is a light sensor and the other is a proximity sensor to detect when you've taken the phone from your ear. I think you're referring to the second.
w00yee said:
am also having this problem. it constantly goes much brighter, and then, suddenly goes back to dim.. very annoying... however, the light sensor for calling works well... so, is it a software issue.. hope it gets google's attention and gets fixed in next update...
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+1 constant occiliation on dimmness levles under consistant light. It goes from way too dim, to just right then back dark again. I too hope that google will correct this with the next update. Hopefully the patch gets pushed soon, i'd like that extra memory

Should I Switch My S4 for Another One?

I got my S4 last week and it's great. This one doesn't have any lag, or at least not anything that concerns me. However, it does have screen issues, especially with the light adjustment. Sometimes the screen will randomly go full brightness for a second and then go back to normal, I notice this when accessing messaging sometimes. I know it also does this for Instagram, but it is suppose to do that.
Now, sometimes it seems like it does a colorshift. the screen will appear less blue and more yellow. It did this when I was accessing the facebook messenger app once and maybe another one. I might be making this up, but it just seems like the color changes ever so slightly. Also, once in a blue moon when it is adjusting screen brightness, all these vertical black lines appear for a microsecond on certain parts of the screen, it seems like an even distribution of lines. Reminds me of something old game boys might do.
I am very happy with the phone though, and I don't want to switch it if I don't have too. However, if another version might not have these issues, I want to switch ASAP, I only have a week left to swap for a new one. After that, my 14 days are up and they said they would only give me refurbs. :[
Do it.
I'm stuck with a defective screen 16GB because the 32GB did not come in on launch day which was my last day to return.
My only option at this point is to get another 16GB that's refurbished from warranty.
The irony in all this is that I manage the kiosk where I purchased the phone on my personal account.
My employees' phones and demo don't have the same screen issues I have.
Sent from my SAMSUNG-SGH-I337 using xda premium
There is a setting in accessibility that called color adjusment mess with that and see if that helps it
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
I will check out the settings. The events that this glitches happen are rare, but it has only been a week and they have happened numerous times. The auto lighting adjustment sucks, times when it should be bright it's not. Plus the black line stuff that happens sometimes. If all of them experience this I dont want to trade in for another one. I don't want to risk trading my working phone for one that won't work so well.
DuffmasterFresh said:
I will check out the settings. The events that this glitches happen are rare, but it has only been a week and they have happened numerous times. The auto lighting adjustment sucks, times when it should be bright it's not. Plus the black line stuff that happens sometimes. If all of them experience this I dont want to trade in for another one. I don't want to risk trading my working phone for one that won't work so well.
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I would swap it if I were you.. I came from the HTC one because of repeated problems and switched to the s4... I've only had it a few days now but have only experienced some lag (fixed by tweaking settings) and the auto brightness is a little slow to adjust sometimes (I've always though this about all my Samsung devices).. But no color changing or bars appearing.. Just my 2 cents..
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
that is partially due to the type of color meter and ambient light sensor type (should be a 40-something segment black and white unless my info on the sensor specs are off. i believe apple has designed a proprietary multisegment rgb meter for theirs). b/w meters get lumens correct, but not perceived brightness (human eye is not the same as a sensor).
the color changing issue you are having may be due to the display mode being set on auto (start, settings, display mode) and under lighting that the sensor cannot correctly meter for (fluorescent lights flicker at the same hertz as your AC current, and are actually pretty dim and WAY off for color balance, so that SHOULD throw the sensors off continuously, which would lead to auto brightness hunting and inaccurate selection of the 'correct' color mode).
try turning auto brightness off and color mode to professional photo or movie (i use move as its very flat and closer to real colors). there ought to be a way to trick the ambient brightness sensor to sample and average at a faster rate, and ramp up/down more smoothly, but i cant code for android otherwise i would have been working on one.
i work in tv/film industry on the sensor/lighting side btw. if the issue goes away, turn on auto brightness and check it out under NON FLUORESCENT lighting. if its gone, it was probably the display mode changing along with auto brightness.
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Slade8525 said:
that is partially due to the type of color meter and ambient light sensor type (should be a 40-something segment black and white unless my info on the sensor specs are off. i believe apple has designed a proprietary multisegment rgb meter for theirs). b/w meters get lumens correct, but not perceived brightness (human eye is not the same as a sensor).
the color changing issue you are having may be due to the display mode being set on auto (start, settings, display mode) and under lighting that the sensor cannot correctly meter for (fluorescent lights flicker at the same hertz as your AC current, and are actually pretty dim and WAY off for color balance, so that SHOULD throw the sensors off continuously, which would lead to auto brightness hunting and inaccurate selection of the 'correct' color mode).
try turning auto brightness off and color mode to professional photo or movie (i use move as its very flat and closer to real colors). there ought to be a way to trick the ambient brightness sensor to sample and average at a faster rate, and ramp up/down more smoothly, but i cant code for android otherwise i would have been working on one.
i work in tv/film industry on the sensor/lighting side btw. if the issue goes away, turn on auto brightness and check it out under NON FLUORESCENT lighting. if its gone, it was probably the display mode changing along with auto brightness.
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I had no idea the S4 had these options. I guess I am used to my Atrix which didnt do much. I went in and adjusted the settings. The auto screen brightness never really did a good job, I feel that it is way too dim in situations where it should be brighter. I will text your advice the next week and see what happens. If I still get issues, I will return it as I have one week left of my 14 days. Thank you very much for the excellent advice!
DuffmasterFresh said:
I had no idea the S4 had these options. I guess I am used to my Atrix which didnt do much. I went in and adjusted the settings. The auto screen brightness never really did a good job, I feel that it is way too dim in situations where it should be brighter. I will text your advice the next week and see what happens. If I still get issues, I will return it as I have one week left of my 14 days. Thank you very much for the excellent advice!
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no problem; the auto brightness on the GS4 is only slightly better than the Atrix 4G (had one too), and same as the GS3. The color mode thing (which is awesome; closer to real life colors versus waaaay oversaturated screens on most phones. also check power saving settings.
also see this thread
http://forum.xda-developers.com/showthread.php?p=41616076#post41616076
Well, I have not seen those black lines since I turned off auto brightness and turned off the screen automatically doing it's own color adjustments. I will turn these back on to see if I can duplicate the issue. I do feel that I have more lag now, but I could just be paranoid.
OK, when I am using my Facebook Messenger App, sometimes these black lines appear horizontally across the screen on low brightness. However, sometimes they dont. I dont want to call them black lines, but maybe I should say they are ghostly tv lines that are barely noticeable. Ideas?
Could someone explain the defective screen issue?, mine looks great...
The phone works great most of the time and is totally useable, the only issue is that sometimes it does these weird things as I have explained. Tomorrow is the 14 day mark, so I am having a hard time deciding if I should switch for another one just in case, or assume all of this is normal and hope the phone lasts me 2 years.
DuffmasterFresh said:
The phone works great most of the time and is totally useable, the only issue is that sometimes it does these weird things as I have explained. Tomorrow is the 14 day mark, so I am having a hard time deciding if I should switch for another one just in case, or assume all of this is normal and hope the phone lasts me 2 years.
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Could possibly be a GPU issue. Have you had any problems playing heavy duty 3d games?
Sent from my GT-N7100
No problems playing the Iron Man 3 game, everything seems fine.
It seems like any time the keyboard is pulled up, the screen shifts color to something more yellow. all of the keys go from a nice grey to a off grey yellow tint color. During this transition, I can literally see the screen transition as weird lines appear for a fraction of a second, like switching channels on an old TV. I tried recording this on my DSLR 1080P camera but it could not pick up the color change visibly. I might try again. It does this on Google Chrome, Facebook Messenger, Snap Chat even. sometimes it color shifts even when the keyboard is not involved. I have the auto adjustments on the screen off and the color set to Standard Mode.
The ATT store said I am a day out of my 14 day limit and there is nothing they can do. They said I have to talk to warranty and see if they will be nice enough to send me a new one. I dont want a refurb, last time that happened, I went through 4 of them. I talked to ATT support and they said they would extend my 14 days another 3 days but the ATT store said I was out of luck for an exchange for a new phone.
So no one elses screen color shifts to yellow when the keyboard pops up? Mine does this now all the time, mainly in low light. It might do it in all light situations but in sunlight I prolly just can't see it. It's incredibly annoying because the screen itself wacks out every time it does it.

Screen Problems (Flicker)

I've searched and seen few post about this, but not much more information, I've rooted and installed cyagenmod 11, an started noticing, for example opening a folder, on the home screen, the brightness of the screen increases for a second, and then decreases, or scrolling thru instagram, or something u can notice the screen gets bright, dims a lil slightly, depending on whats being displayed on the screen, darker images, vs white backgrounds .etc, I just flashed back to stock, and notice it does the same.
I have auto brightness turned off, and brightness set around 40-60 %, is this a defect? software issues? or what.. wanna make sure before I send this back..
Thanks

How to adjust Always On Display (AOD) brightness?

I really love this new Always On Display (AOD) feature, it's really classy and elegant.
But, one thing I noticed is that the brightness level seems to be automatically adjusted, and when its bright it surely drains the battery.
Is there anyway to set this brightness manually? I tried changing the display brightness in manual mode, but it does not seem to use that settings.
Any suggestions would be much appreciated.
I dont think there is an option, if there is i am also interested.
I personally thought the Display sometimes was too bright.
i..e In a Dark Room and the Light was more ambient than it really needed to be.
Then the misses would ask me to turn off the night light lol!
Always On
Dear All, I just bought my S7 Edge and picked it up yesterday. I'm quite impressed with this display!
I thought the same thing you guys tought... The Always On Display is very bright!
But here is some info that I searched over the internet. Don't know about it's reliability, but seems legit.
New Always On Display
An interesting function that first appeared on the Galaxy Note 4 Edge in 2014 was always keeping a portion of the OLED screen on when the phone is off (in standby), so certain content can be displayed all day and all night long, but with a very small power drain that has very little effect on the battery running time. This is possible on an OLED display with a mostly black background because every sub-pixel is independently powered, so black pixels and sub-pixels don’t use any power.
The new Always On Display mode shows various personalized clock, calendar, status messages, notifications, and images on the main screen when the phone is on standby. It measures the ambient light level and has both day and night modes, plus it’s smart enough to stay off when the phone display is face down, or it senses a dark confined space such as a pocket or handbag. The OLED display produces an illuminated main screen image 24 hours a day so you can always discreetly check it with just a glance. As a result, the OLED Always On Display will reduce the need for a smartwatch, which seems likely to become an endangered species. We’ll cover this in more detail below.
Here is where I picked it up. Cheers Guys!
(Received a message with the information that I can't post url's.. ) sorry...
Type this in google, "always on display s7 edge brightnes" then it is the 3rd link in the url contains displaymate
same, it quite bright, and with my testing if you can keep ut at its lowest brightness, it consumes 0.3%/hr. that would be absolutely great.
there is an app always on display plus which helps in that
if you mark on auto brightness , it will be done
I unmarked Auto Brightness and seems not brights
Hello guys did anyone find a solution to this?
metko said:
Hello guys did anyone find a solution to this?
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+1
I've noticed that it is automatically adjusting by the amount of light in the room (and it's quite sensitive, always brighter than needed). It would be great if there was an option to manually set the brightness, but only small bunch of people are actually interested in this.
[email protected] said:
there is an app always on display plus which helps in that
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This app does not changing the actual brightens, seams to be there is no solution yet.
I tried changing the screen brightness to minimum and disabling auto brightness, but the AoD brightness seems to be controlled independently.
Trying out an app called Always On AMOLED - it has a night mode. Gonna test power consumption of both
Mine used to auto adjust but not anymore. I think the last software update changed this.
GS7
I'd love to have an adjustment setting. I'm having the opposite problem as most. Mine isn't bright enough! Oh well. Hope they change that!
AOD brightness fix for Galaxy S9 and S9 Plus. May fix others
This may not help everyone as I am giving you the solution for the S9 and S9 Plus, but look in your settings to see if you have the same thing.
Under 'Lock Screen and Security' select AOD and select 'Show Always'. Once you've selected the Content to Show, disable Auto Brightness then move the slider as far right as possible and underneath that select Show Always.
Job done. Next time you see your AOD it'll be full brightness. It is still not bright enough but better than before. If you then go into 'Clock Style' and change the colour after type and choose a fairly stand out colour, this will make your clock stand out even more.
I hope I've helped at least a few people.
hoi
themaestro023 said:
This may not help everyone as I am giving you the solution for the S9 and S9 Plus, but look in your settings to see if you have the same thing.
Under 'Lock Screen and Security' select AOD and select 'Show Always'. Once you've selected the Content to Show, disable Auto Brightness then move the slider as far right as possible and underneath that select Show Always.
Job done. Next time you see your AOD it'll be full brightness. It is still not bright enough but better than before. If you then go into 'Clock Style' and change the colour after type and choose a fairly stand out colour, this will make your clock stand out even more.
I hope I've helped at least a few people.
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i feel like its to bright... i want to dim it. dont need it to be that clear.... i wil continue my search....
Threw search and having both s7 and s9+ I noticed the 9+ has the ability to adjust the brightness of the AOD very easily in settings or double tap the screen and u see the settings. Works perfect on the 9+ as for the s7 doesnt have the same settings they both say the latest version available is downloaded but it's an s7.. so I just think that setting dont exist on the s7. The brightness is controlled on it's own and u really have no control manually on the brightness.. I think it's a new thing for new galaxies but the 7 isnt gonna do it.. eh.. so I suggest a contrast color which makes it "brighter" to the eye. And basic and big.. it's for quick glances anyways... sucks tho..

Is this normal or problem? Brightness.

Good afternoon,
I do not know if it is something normal or it is a real problem that requires technical support. The case is that I have the mobile without automatic brightness, and when I set the brightness to very low levels, when unlocking the terminal, when you turn on the lock screen with the wallpapers, it appears as a slight flicker of the screen, thousandths of a second, almost imperceptible if you do not stare. Something like when you start to light a light bulb until you get to have light at all, but with a very slight flicker.
It is not an extreme flicker that completely turns off the screen or any of that, it may even be the operation of the brightness sensors (which happens to be strange because the automatic brightness is off), but I worry that it may have more problems in the future. Also I have noticed that having the brightness to the maximum of half of this problem does not occur, only with low brightness. There is also no blinking once unlocked using the phone itself, everything works perfectly. It is as if the lock screen was automatically adjusted when unlocked.
Should I contact technical support or just foolishness of mine?
Regards and thank you very much in advance.
PD: I have EMUI 4.0, NXT L29 with b192
Maybe you can upload a video so we know what ur talking about.
I think I've actually noticed something like what you're describing in my device. In summary, ever so slight flicker of brightness when display is on low/lowest level with automatic level off. I assumed it was normal
gm007 said:
Maybe you can upload a video so we know what ur talking about.
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I have tried to record videos, but it is very difficult to appreciate.
MuPp3t33r said:
I think I've actually noticed something like what you're describing in my device. In summary, ever so slight flicker of brightness when display is on low/lowest level with automatic level off. I assumed it was normal
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I also think it's normal. It's like an automatic contrast adjustment to accommodate the eye to the screen. I think it's a matter of the IPS NEO screen.
Does anyone else have this?

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