S21's are brighter in phone stores - General Topics

Today i was measuring s21 brightness in the store and was shocked i was getting 850lux readings (from s10+ sensor) meanwhile 12 pro max was showing 780 lux. I wanted to compare two phones next to eachother but guy says they cannot take the phones away from the table. Though, super lucky, the guy himself owned an s21(this is not a samsung store in case you missed) and lets me compare them side by side. I compare and s21 is noticably dimmer, very close to my s10+. Now im confused, i got brighter readings then why?
So i took his phone to the store s21 and there was a huge brightness difference. We updated both s21's and after letting them cool down (cuz they dim when hot) the results were still same. His s21 was nowhere near store s21's brightness. His s21 gave about 500lux reading meanwhile store one gave 850.
Take the numbers with a grain of salt since the sensor is s10+ and brightness reading changes depending on if you hold the measured device diagonal or straight.
But turns out review sites arent wrong. S21s manual brightness is rated at 400 nits which explains why its so close to my s10+(310) and so far from 12 pro max.(800) Meanwhile store s21 shows 800nits manually.
So if you were to buy it, you only get 400 nits manually. I suppose its a trick to make you believe the screen is super bright but its only in the store.
By enabling video enhancher and opening up youtube, guys s21 also goes up to 800nits, but only in that youtube app and video player (maybe one more thing i forgot too) Keep that in mind if you are shopping for a s21.
Edit: (in case you are curious, store s21 showed 800nits whetever auto brightness was on or off)

Firmware.

blackhawk said:
Firmware.
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We updated both phones to latest if thats what you mean.
But i saw a "display mode"( i am from turkey so dont know exact translation) in store s21 which said stuff like " dont turn this on/off if you arent autohorized. It does stuff like reset the phone regularly" and some bunch of other stuff. It wasnt written there but i suppose this brightness boost comes from that "display mode" or "exhibition mode"

Maybe another one of tricks in the Samsung bag of marketing tricks that they are notorious for.
Operating at or near full brightness with a OLED display is never a good idea though.
You can kill them fast like this especially in direct sunlight.
It's not just the OLEDs in the display, there are thousands of mosfets in there too and very little heat sinking capacity for all of them. The brighter it is, the more heat the display needs to dissipate.
A lot of that heat is dissipated through the front of display it's self.

blackhawk said:
Maybe another one of tricks in the Samsung bag of marketing tricks that they are notorious for.
Operating at or near full brightness with a OLED display is never a good idea though.
You can kill them fast like this especially in direct sunlight.
It's not just the OLEDs in the display, there are thousands of mosfets in there too and very little heat sinking capacity for all of them. The brighter it is, the more heat the display needs to dissipate.
A lot of that heat is dissipated through the front of display it's self.
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Yea but moderation is key. Not like we will use max all the time, but being able to go max whenever we desire is a good experience. Much better than feeling like your display could do better.(know from my s10+)
I think heat isnt much of a concern either since all displays dim when phone reaches a certain temeperature, automatically.
Besides, subpixels wont be max intensity all the time when watching vids or playing games so its not that bad.
As long as you dont blast max brightness 7/24 it should be fine imo

theblitz707 said:
Yea but moderation is key. Not like we will use max all the time, but being able to go max whenever we desire is a good experience. Much better than feeling like your display could do better.(know from my s10+)
I think heat isnt much of a concern either since all displays dim when phone reaches a certain temeperature, automatically.
Besides, subpixels wont be max intensity all the time when watching vids or playing games so its not that bad.
As long as you dont blast max brightness 7/24 it should be fine imo
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High energy blue OLEDs fail first... there already been people reporting "burn in" with OLED displays.
They have a finite lifespan; the brightest stars burn the shortest.
As for thermal throttling, sometimes it works other times things get cooked.

blackhawk said:
High energy blue OLEDs fail first... there already been people reporting "burn in" with OLED displays.
They have a finite lifespan; the brightest stars burn the shortest.
As for thermal throttling, sometimes it works other times things get cooked.
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Click to collapse
Burn in could be a display lottery i guess. Of course oleds are very susceptible to it but i think it happening in 1-2 years is too fast unless like, someone uses it at max brightness for few hours every day with white navigation showing(very static). I guess ill have to see how my s10+ fares, so far no issues kind of a heavy user here.

Related

Screen cant be seen outside in sunglight help

Hi. I'm having problems seeing my screen outside in any sunny environment. I have my phone on max brightness and it is incredibly difficult to see my phone. I am currently using the Berserk 1.3 ROM but have tried various ROMS and I always have problems seeing the phone outside.
I cant quite recall, but I think my gingerbread ROMS were overall much brighter than my ICS ROMS. Is there anything I can flash to my phone to allow the screen to reach a higher brightness?
No. This is entirely hardware. The Sensation has a display that is quite simply not bright enough for outdoor use (you can check GSMarena for the Sensations display stats-its max brightness and contrast ratio aren't enough to be visible in bright light). It has nothing to do with your ROM, and there is no difference between Gingerbread or ICS ROMs. The only thing you can do is run Sense ROMs, as they tend to have a brighter color scheme than stock ICS. The good thing is that LCD tech has improved a lot and evidenced by the One X they can be quite visible outdoors.
Sent from my HTC Sensation 4G using XDA
The Janitor Mop said:
No. This is entirely hardware. The Sensation has a display that is quite simply not bright enough for outdoor use (you can check GSMarena for the Sensations display stats-its max brightness and contrast ratio aren't enough to be visible in bright light). It has nothing to do with your ROM, and there is no difference between Gingerbread or ICS ROMs. The only thing you can do is run Sense ROMs, as they tend to have a brighter color scheme than stock ICS. The good thing is that LCD tech has improved a lot and evidenced by the One X they can be quite visible outdoors.
Sent from my HTC Sensation 4G using XDA
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I call BS on that, although I do like GSMArena. Max brightness and max sunlight mean I can see the screen. It can be kinda hard, but I can see detail down to the pixel.
sshede said:
I call BS on that, although I do like GSMArena. Max brightness and max sunlight mean I can see the screen. It can be kinda hard, but I can see detail down to the pixel.
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Call BS on what? The Sensation's screen is hard to see in direct sunlight because it simply is not bright enough at max brightness. That's a simple fact. I have compared a number of phones' stats (that are notable for being exceptionally visible or not visible in direct sunlight), and it is clear that phones that are notable for how visible they are outdoors (if they are LCD) tend to have over 500 nits brightness at their max and a contrast ratio well over 1000. I too can see the screen outdoors, but what the OP is not happy about is the fact that it is barely visible in direct sunlight. It is subjective, but IMO if you think the Sensation does just fine outdoors than you have a very low standard for displays.
Sensation: 438 nits at max brightness, 720 contrast ratio.
One X: 550 nits at max brightness, 1410 contrast ratio.
Those are measured facts, varying only slightly from one Sensation's display to another and one One X's display to another. The One X's display is far brighter and far more visible outdoors, and it is primarily due to those simple facts that at max brightness it is brighter and it has a greater contrast ratio (its blacks are far deeper). Now maybe the Sensation's screen is good enough for you for outdoor use but for others it just isn't (in fact, its poor brightness and outdoor performance has been one of my main gripes with the Sensation since day 1).
The Sensation has a display that is quite simply not bright enough for outdoor use (you can check GSMarena for the Sensations display stats-its max brightness and contrast ratio aren't enough to be visible in bright light)
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That. I call BS on what you said. You said it's not bright enough for outdoor use. Well, unless you live on the Sun, max brightness provides a decent viewing experience, it's not amazingly super-bright, sure, but it is usable. Then that thing about "max brightness and contrast ratio aren't enough to be visible in bright light". Again, the Sun constitutes bright light (usually about as bright as you'll get when it comes to smartphone use) and with max brightness, it's totally usable.
Is it as easy as being in a low light room? Hell no, but it's not impossible.
I unfortunately expected it to be entirely hardware related. Thanks for answering. And on a sunny day I find it very close to impossible to use. Sometimes its so bad I just see my reflection and pretty much see nothing on the screen itself.
sshede said:
That. I call BS on what you said. You said it's not bright enough for outdoor use. Well, unless you live on the Sun, max brightness provides a decent viewing experience, it's not amazingly super-bright, sure, but it is usable. Then that thing about "max brightness and contrast ratio aren't enough to be visible in bright light". Again, the Sun constitutes bright light (usually about as bright as you'll get when it comes to smartphone use) and with max brightness, it's totally usable.
Is it as easy as being in a low light room? Hell no, but it's not impossible.
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Ah, what you meant was "I disagree". I thought you were calling BS on the display stats (which of course would be strange to call BS on the measured results from a reputable source). Like I said, whether or not the Sensation's display is good enough for you is subjective. I can understand that for some people it is bright enough for outdoor use, but I hope you can understand that for other people (like me and the OP) it isn't bright enough for decent outdoor use in direct sunlight. I used the measured specs to show that the Sensation really is at best objectively a middling performer in brightness, which is why some people are not happy with how the display performs outdoors.
In direct sunlight outdoors, at max brightness I can in fact see the screen just like you, and I can use the phone, but:
It is extremely washed out
I have to hold it closer to my face (and I have very good vision)
It is extremely prone to reflections
It in general significantly reduces my user experience
Of course I'm not expecting it to perform like magic outdoors and be just as vibrant as it is indoors. Any display is going to look worse in bright sunlight. But what I am saying is that of the range of what we have on the phone market today, you can find a lot of other devices out there that have better displays for outdoor visibility. If "good enough" was the standard then we wouldn't have ever-increasing display resolutions, faster and faster processors, increasing RAM, increasing storage, etc.
The gist of this is that calling BS seems to denote that I said something factually wrong, as if the Sensation "factually" is good enough for outdoor use and that therefore you don't have the right to complain about its brightness. I'm just asking you to understand that it's a subjective matter and that there are a lot of people out there like me who don't think it is good enough.
Must you really be this technical? And if you really want to be this technical, you did say something factually wrong.
its max brightness and contrast ratio aren't enough to be visible in bright light
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This is simply not true, you said it yourself just now.
In direct sunlight outdoors, at max brightness I can in fact see the screen just like you
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Now this is getting out of hand. Let's just let this one go.
sshede said:
Must you really be this technical? And if you really want to be this technical, you did say something factually wrong.
This is simply not true, you said it yourself just now.
Now this is getting out of hand. Let's just let this one go.
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I meant visible enough, so im sorry that what I wrote is as is technically untrue. And I am being this technical because on my list of Sensation cons the display brightness has been one of the two biggest things. Ive also done a ton of research on display technology and specs and found that its one of the few areas of specs where the numbers almost directly correlate with user experience. People often complain that some people worry too much about specs and that the user experience is all that matters, but since for displays the specs actually mean something I take care to get info on them.
As for this getting out of hand, im not trying to be argumentative, so if my tone is that way its just the fact im typing on a keyboard rather than talking in real life, so no hard feelings.
Sent from my HTC Sensation 4G using XDA
Well, first, sensation has two types of screens, and their specs differ.
Second, with specs, or without them, both are unreadable what so ever in direct sunlight, even when using enormously large fonts with black on white or the opposite.
Met a few guys who said I was wrong on a trip to London last year, but it's never that sunny in London. Try Rome for sunny and you'll see nothing on your sensation.
Btw, direct sunlight is not healthy for people ;-)
Sent from my HTC Sensation XE with Beats Audio using xda premium
@sshede... what the hell is your problem? What that guy is saying is true, those screen specs make for poor outdoor visibility. I don't get how u can argue with that? You're a very stubborn person
Sent from my Sensation using XDA
I agree with Fred. Mine works outside just fine. I can read it clearly in direct sun.
Sent from a rebel ship by storing the message in an R2 unit. (Help me, XDA. You're my only hope)
I can also read and see my screen in the sun .I live in California and It's sunny all the time here where I live. Never had a problem.in fact my old device was impossible to see in the sun but the sensation was amazing and what a difference! I can read and see just fine outside! Funny because my screen is set on almost as DIM As I can get it. I choose this to save battery! Still with
My.brightness turned down I have no problems ....
Sent from my Sensation 4G using xda premium

Pulse-Width Modulation - problem or not?

Hey guys!
I have a question to you, owners of the Galaxy S7. As we know from other threads Galaxy S7 uses PWM to control screen brightness. I am interested in this phone and it has been my favourite to buy. I read many reviews and I was really satisfied for what I saw. And then I entered the Notebookcheck's review of S7 and realised what PWM is. As a result... I have very big question mark when it comes to buying this phone. PWM is seem to be a big defect for me, it's hard to believe that such a company can release a phone, which can produce headaches and eye strain or even make flickering visible to some group of people!
Some people say it's a big problem, but reviewers excluding Notebookcheck don't even mention that and say it's a perfect screen. So I have a question to you - what is the truth? Can you see the problem, do you feel bad after using the screen for a long time, is it possible to see flickering at 236 Hz? Thanks in advance for you answers!
No you can't see flickering
You'd have to be super human to see flicking at 236Hz, most PC LCDs are 50-60Hz and you don't see the flickering, florescent lights are 50-60Hz and you can only just see it if the bulb is dying
*Detection* said:
No you can't see flickering
You'd have to be super human to see flicking at 236Hz, most PC LCDs are 50-60Hz and you don't see the flickering, florescent lights are 50-60Hz and you can only just see it if the bulb is dying
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Sorry Detection, but your comparisons fail in this case. What LCD screens have is a 60 Hz refresh rate (or higher for e.g. gaming displays). That means, that the screen content is refreshed/output 60 times a second. But the backlight is not pulsed. It is constantly on. You would really notice a 60 Hz on-off-pulsing of the backlight.
Flourescent lights have an afterglow, and are driven by a 50 or 60 Hz sine wave AC. So it doesn't go off and on instantly.
I own a Galaxy S7 myself and I do notice the flickering. Some people are more sensitive in perception than others. I notice it with different strength in different situations. The dimmer the screen brightness is set, the more it is noticable to me. I assume, it's because of pulse width ratio - the dimmer the brightness is set, the shorter is the on, and the longer is the off time. And it is more noticable to me with bright font on dark backgrounds than the other way round. I'd really say, that this is the biggest disadvantige of Samsung's OLED displays. On my former S3 it was also noticable to me, even stronger due to a lower frequency. But I'd say, I can live with it - I really like the vivid colors of these AMOLEDs on the other hand.
It would be interesting to know if the brightness control of OLED displays of other manufacturers is done the same way, or if there are other techniques existing
Edgar_M said:
Sorry Detection, but your comparisons fail in this case. What LCD screens have is a 60 Hz refresh rate (or higher for e.g. gaming displays). That means, that the screen content is refreshed/output 60 times a second. But the backlight is not pulsed. It is constantly on. You would really notice a 60 Hz on-off-pulsing of the backlight.
Flourescent lights have an afterglow, and are driven by a 50 or 60 Hz sine wave AC. So it doesn't go off and on instantly.
I own a Galaxy S7 myself and I do notice the flickering. Some people are more sensitive in perception than others. I notice it with different strength in different situations. The dimmer the screen brightness is set, the more it is noticable to me. I assume, it's because of pulse width ratio - the dimmer the brightness is set, the shorter is the on, and the longer is the off time. And it is more noticable to me with bright font on dark backgrounds than the other way round. I'd really say, that this is the biggest disadvantige of Samsung's OLED displays. On my former S3 it was also noticable to me, even stronger due to a lower frequency. But I'd say, I can live with it - I really like the vivid colors of these AMOLEDs on the other hand.
It would be interesting to know if the brightness control of OLED displays of other manufacturers is done the same way, or if there are other techniques existing
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You're seriously telling me you can see something flashing at 236 times per second? Sorry but no
I'm one of the persons that if the screens have a low refresh rate I get headaches and get tired, however since long time gone with technology this doesn't happen. I don't have any issue with the phone and use it sometimes hours in a row and for a full load of operations. Car navigation, social messaging, reading news and articles and internet searches. No issue at all for me and it's been a great screen. I use however a 3M privacy film, so it lowers the quality of the screen.
I use this phone in my Gear VR where it is a inch from my eyes and I don't notice any flickering. The screen is great!
It is great, no doubt. But, believe it or not guys, some people do recognize the flickering

Problem: Screen Horizontal Lines When Dim in 120hz and low light

Hi,
My Note 20 ultra has some Display problems.
When my phone is on a lower brightness and Adaptive(120Hz) refresh rate setting on a grey background, I can see all sorts of funky horizontal lines across it.
(except gallery - i think the refresh rate reduce to 60hz in gallery automatically so in gallery you can't see the problem).
I see them big time on settings screens or Apps where there is a gradient of gray.
see the attached Picture. Two pics with 120Hz(Adaptive) Display Refresh Rate and others with 60hz!
Note: the problem seems to be more than real in these pictures because of camera, with eyes you can't see such this bad!
Any one here with this problem?
Is this something wrong with the phone? Or is that normal?
60
saidgta said:
Is this something wrong with the phone? Or is that normal?
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normal for amoled screen
saidgta said:
Is this something wrong with the phone? Or is that normal?
Click to expand...
Click to collapse
You have a defective display get it replaced ,& no this isn't normal with oled screens
You can see the lines with your eyes or just with the cam?
Normal for a cam image... try decreasing shutter speed, a lot.
blackhawk said:
You can see the lines with your eyes or just with the cam?
Normal for a cam image... try decreasing shutter speed, a lot.
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I can see with eyes but very rare, just when the screen is on 120 Hz and lowest brightness. On 60Hz everything's ok!
saidgta said:
I can see with eyes but very rare, just when the screen is on 120 Hz and lowest brightness. On 60Hz everything's ok!
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Click to collapse
Is that in a completely dark room?
If you're not using a incandescent light source for room lighting that may cause it.
Otherwise regardless of screen brightness or display frequency it should be not be showing anything except what's being displayed.
At that price it better be spot on.
Yes, that's in a completely dark room.
The horizontal lines is static, not moving. And you can see just in Gray Backgrounds with lowest brightness and 120hz.
screen lines
Hi. I just got my Note 20 Ultra and I have the same problem. I see streaks in my photos. If I switch between 60 and 120Hz, sometimes the lines disappear, but not always.
saidgta said:
Yes, that's in a completely dark room.
The horizontal lines is static, not moving. And you can see just in Gray Backgrounds with lowest brightness and 120hz.
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Click to collapse
Not good. Was thinking maybe background LED lighting might be "strobing" it.
Probably a firmware issue but could hardware is my guess.
Maybe software... try clearing the system cache on boot menu, a hard reboot and clearing graphic driver data even if it reads zero. If you have PD MDM use that to clear instead of in Settings.
Mine does the same. I think they all do it some people just don't notice it.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
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Yes, I know someone that replaced the phone, but new phone has the issue too.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
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Click to collapse
Do you normally use that low a level at night?
I have excellent center vision; my 10+ goes dimmer than I will ever use. No flicker or color anomalies though.
It may be the physical hardware limits of the device or they may eventually patch a firmware flaw.
They also may have inadvertently set the lower limit of the brightness too low...
If it doesn't effect night usage I might ignore it.
Samsung can be notoriously slow at fixing firmware/software glitches in their products.
Amazingly even after almost 2 years they are still patching both firmware and software on the original Buds. They now perform much better then a year ago. Crazy.
blackhawk said:
Do you normally use that low a level at night?
I have excellent center vision; my 10+ goes dimmer than I will ever use. No flicker or color anomalies though.
It may be the physical hardware limits of the device or they may eventually patch a firmware flaw.
They also may have inadvertently set the lower limit of the brightness too low...
If it doesn't effect night usage I might ignore it.
Samsung can be notoriously slow at fixing firmware/software glitches in their products.
Amazingly even after almost 2 years they are still patching both firmware and software on the original Buds. They now perform much better then a year ago. Crazy.
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Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
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Click to collapse
coilbio said:
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
Click to expand...
Click to collapse
That's seems annoying. Guess using a lower frequency at night be the easiest solution. Sammy throws out a lot of betaware that needs more work...
On the 10+ Pie the display settings are goofy for screen mode. If you set it to "vivid" it's way oversaturated. Natural is the best setting but you have little ability to dail it in much more than that.
I'm curious about these controls on the 20U and Q.
Any improvement?
blackhawk said:
That's seems annoying. Guess using a lower frequency at night be the easiest solution. Sammy throws out a lot of betaware that needs more work...
On the 10+ Pie the display settings are goofy for screen mode. If you set it to "vivid" it's way oversaturated. Natural is the best setting but you have little ability to dail it in much more than that.
I'm curious about these controls on the 20U and Q.
Any improvement?
Click to expand...
Click to collapse
Honestly don't notice a difference switching between the two in n20u, on note 10+ yes big difference.
So I tried the green slider mod setting where you dial it all the way down under advanced display setting.
Its not much of a difference, it does reduce it a little. The screen becomes purple dominant obviously but the green fringes still show.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
Click to expand...
Click to collapse
coilbio said:
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
Click to expand...
Click to collapse
coilbio said:
Honestly don't notice a difference switching between the two in n20u, on note 10+ yes big difference.
So I tried the green slider mod setting where you dial it all the way down under advanced display setting.
Its not much of a difference, it does reduce it a little. The screen becomes purple dominant obviously but the green fringes still show.
Click to expand...
Click to collapse
On the 10+ the color sliders are weak too.
A 3rd party overlay app works but is a pain.
Overlay apps won't work with Q though I believe.
Rather sloppy of Goggle and Samsung... this is an ongoing issue with Androids; no color calibration
Fortunately the 10+'s aren't too bad but it the color blind coders need to get up to speed...
Androids need color calibration.
OLEDS are horrible sceens, but similarly to screen-to-body ratio we have brightness race now, a useless but review-happy attribute which does help your eyes only in very rare situations. Otherwise it makes your eyes tired with pulsing. For use in dark these screens are bad. You will also got ugly backbleeding as a bonus. Horror movies are unwatchable.
I have this with each phone nowadays, and there's no escape from it. I can see the lines on Note20U too, of course. It even blinks when you're tired. The backbleeding is rather uniform tho and not so intensive.
Funny as I use mobile 90% in dark, i prefer dark mode, and i like dark movies Killer trio.
doggydog2 said:
OLEDS are horrible sceens, but similarly to screen-to-body ratio we have brightness race now, a useless but review-happy attribute which does help your eyes only in very rare situations. Otherwise it makes your eyes tired with pulsing. For use in dark these screens are bad. You will also got ugly backbleeding as a bonus. Horror movies are unwatchable.
I have this with each phone nowadays, and there's no escape from it. I can see the lines on Note20U too, of course. It even blinks when you're tired. The backbleeding is rather uniform tho and not so intensive.
Funny as I use mobile 90% in dark, i prefer dark mode, and i like dark movies Killer trio.
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Click to collapse
It's not the OLEDs that are the issue as the display on my 10+ is the best display I ever used.
It's the firmware/drivers and perhaps the >60 hz hardware. It's very disconcerting that it's not sorted out yet.
Well that's Samsung. It may be fixed. Samsung just pushed out yet another Buds+ firmware update today. Wow. They keep trying, I'll give them that... the best the Buds+ ever sounded.
So there's hope. The bad news is it will most likely need to be a firmware update if it is fixable.
Flashing the Buds is a lot easier (and less risky) than patching the bloody phone firmware.
Based on issues like this and the abomination that Q and above are, I may simply buy another backup 10+ 512gb phone running on Pie and call it good for the next 3 years.
Both Samsung and Goggle/Android have been practicing drop the ball like drooling kindergarten ftards lately
saidgta said:
Hi,
My Note 20 ultra has some Display problems.
When my phone is on a lower brightness and Adaptive(120Hz) refresh rate setting on a grey background, I can see all sorts of funky horizontal lines across it.
(except gallery - i think the refresh rate reduce to 60hz in gallery automatically so in gallery you can't see the problem).
I see them big time on settings screens or Apps where there is a gradient of gray.
see the attached Picture. Two pics with 120Hz(Adaptive) Display Refresh Rate and others with 60hz!
Note: the problem seems to be more than real in these pictures because of camera, with eyes you can't see such this bad!
Any one here with this problem?
Click to expand...
Click to collapse
I have same issue..! Have you sorted out this issue!?

Note20 Ultra screen wearing poorly after a year

So I've had the Note20 Ultra 512 GB since release last year. Image retention has always been there, but never resulted in burn in so I ignored that. However, now the screen uniformity is getting worse. The area around the fingerprint sensor and a rectangle about half an inch around the edges of the screen are a different darkness level. It's very visible on gray screens and medium colors at any brightness. I also have an S20+ that is not exhibiting any of the issues I see here. I remember having my Note 9 under neon lights and the half inch ring was noticeable, but could not be seen in normal lighting or dark environments. I was hoping to pass this phone to a family member when the S22 Ultra comes out, but I have concerns about screen longevity. Anyone else noticing this?
See this for an example:
https://www.reddit.com/r/GalaxyNote20/comments/l0svom
The S22U is worse from what I'm seeing; a lot of display issues. Display just going black after a reboot or charge, whatever... dead as Zed.
Plus no SD card slot, no native spen and running on the dog OS Android 11. All that for a premium flagship price. Yes, well...
What brightness level are you running it at?
Use it in direct sunlight except occasionally for a few seconds?
I keep my N10+ at less than 50% about 99% of the time. I use dark mode and near black wallpaper. Minimum red icons. Mostly because I prefer not burning out my eyes but also OLED preservation. I use manual brightness control only.
At 2 years my heavily used 10+ shows no display degradation even compared to my new one.
See what you, use ScreenTest to make sure you actually have any changes with the display. You really shouldn't. If you been conservative with your brightness and you have degradation it's likely a design and/or manufacturing fubar.
Samsung runs hot and cold. This year has been a bad year for Samsung.
Next year isn't any better plus Android OS is tanking. Even if Samsung does manage to pull a Note out of their assets, I'll wait a year to buy it.
See what kind of feedback it's getting and if the Android OS completely turns into a sour green Apple
I punched out and went with a know good workhouse for the next 2-3 years. I just wasn't liking what I saw... and the 10+'s just keep on ticking.
blackhawk said:
What brightness level are you running it at?
Use it in direct sunlight except occasionally for a few seconds?
I keep my N10+ at less than 50% about 99% of the time. I use dark mode and near black wallpaper. Minimum red icons. Mostly because I prefer not burning out my eyes but also OLED preservation. I use manual brightness control only.
At 2 years my heavily used 10+ shows no display degradation even compared to my new one.
See what you, use ScreenTest to make sure you actually have any changes with the display. You really shouldn't. If you been conservative with your brightness and you have degradation it's likely a design and/or manufacturing fubar.
Samsung runs hot and cold. This year has been a bad year for Samsung.
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Click to collapse
Using it at 40-50% brightness. The screen looks fine in decent lighting, but in a darker room I can see the shaded areas clearly. When using a light theme or pure black, everything looks great as well. I just find it odd how much more noticeable artifacts are on these screens than on the S20+ and Note 9.
Guyinlaca said:
Using it at 40-50% brightness. The screen looks fine in decent lighting, but in a darker room I can see the shaded areas clearly. When using a light theme or pure black, everything looks great as well. I just find it odd how much more noticeable artifacts are on these screens than on the S20+ and Note 9.
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That's not excessive...
The ScreenTest app will help you see what is degraded. Blue pixels tend to degrade first, red last.
is the original screen protector still on?
raul6 said:
is the original screen protector still on?
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Click to collapse
The US models don't come with screen protectors. The glass has held up decently with only 2 tiny hairline scratches that are only visible in sunlight.
Guyinlaca said:
So I've had the Note20 Ultra 512 GB since release last year. Image retention has always been there, but never resulted in burn in so I ignored that. However, now the screen uniformity is getting worse. The area around the fingerprint sensor and a rectangle about half an inch around the edges of the screen are a different darkness level. It's very visible on gray screens and medium colors at any brightness. I also have an S20+ that is not exhibiting any of the issues I see here. I remember having my Note 9 under neon lights and the half inch ring was noticeable, but could not be seen in normal lighting or dark environments. I was hoping to pass this phone to a family member when the S22 Ultra comes out, but I have concerns about screen longevity. Anyone else noticing this?
See this for an example:
https://www.reddit.com/r/GalaxyNote20/comments/l0svom
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Click to collapse
Wow I have exactly the same issue. Exactly the ring and rectangle above. I thought it was because of some image that created such a high contrast, but since you have the same issue then it's a hardware issue.
And it's only visible on some shades of grey. Not on black, not on white. So strange
since many devices have the same burn-in pattern, do you believe it has something to do with its internal components (rather than the display's pixels)?
Like the charging circuit for example?
This problem is getting much worse and is now visible at all times regardless of brightness. It likely will result in an unusable screen soon. I will try reaching out to Verizon and/or Samsung to get a resolution. This is totally unacceptable for a phone that only been used a little over a year. Here is what it looks like at 50% Brightness, and 10% Brightness. The Note 9 and 10 Plus lasted over 2 years with no such problems.

Question Question for Pixel 7 Pro owners

I like the phone and really want to buy it. However, one thing that keeps me hesitant is PWM on this phone. It’s actually lower than P6 pro had https://9apps.ooo/
I would really appreciate to hear some feedback from those who bought it and use it 5+ hrs SOT daily.
How does the display feels on your eyes in general ? How your eyes feel after reading in complete darkness or candle light for a while ?
lanesmang said:
I like the phone and really want to buy it. However, one thing that keeps me hesitant is PWM on this phone. It’s actually lower than P6 pro had
I would really appreciate to hear some feedback from those who bought it and use it 5+ hrs SOT daily.
How does the display feels on your eyes in general ? How your eyes feel after reading in complete darkness or candle light for a while ?
Click to expand...
Click to collapse
First, not sure what PWM is and as for how it affects people's eyes is relative to each person's eyes. Not to mention screen settings are customizable per each person's preferences
By PWM do you mean Pulse Width Modulation ? That should not be a problem on any display as long as you don't have extreme high speed eyes.
Maybe refresh rate but starting with 60 hz it also should be easy on eyes, besides you can use 120 hz which is extremely smooth.
As a "wake up early and play with phone" fella I do not have any problems with flickering light or refresh rate.
I haven't had any issues with this phone but I don't seem to be PWM sensitive anyway.
There is far far more to it than just the PWM frequency! The "common" thought on this is that the LEDs are ON for the ON phase of the PWM cycle, and OFF for the OFF phase, but this isn't actually the case because the circuitry and LED cells have *capacitance*, which basically means that they smooth out the pulses, allowing them to blend together and not actually flicker.
Yes, some really really crappy screens will flicker, but these aren't those. The PWM frequency set will account for the capacitance of the circuits.

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