It has pwm even on full brightness. I tried the pwmfree app https://forum.xda-developers.com/t/app-amoled-pwmfree.3898070/ but it still hasn't fixed the problem.
Doesn't it bother you? My eyes hurt while looking at the screen.
I've read a bit about it on the link you've provided. How did you know if our phones have it? I am quite interested in this!
You use the camera from another smartphone or another device to look at the screen of the a52. And you change the shutter speed or exposure in the camera until you will see the bars pulsating on the screen of the a52.
Oh well then it seems like most of my phones since 2015 or so have had that, and I've never really suffered from headaches from it, not that I've noticed.
You can't notice it consciously, but some people, including me, are affected by it. The thing is this could easily fixed by samsung, but they wont do it. Other companies have removed the pwm effects on their amoled screens.
dragon.. said:
You can't notice it consciously, but some people, including me, are affected by it. The thing is this could easily fixed by samsung, but they wont do it. Other companies have removed the pwm effects on their amoled screens.
Click to expand...
Click to collapse
Damn that sucks, especially when you know its an easy fix from the OEM to implement.
One thing though, from what I've read off the PWM Free apk page, it uses a transparent black overlay and increases its opacity as you decrease brightness. If that's the case then you could use Twilight to acheive the same goal, right? Just max out the brightness and turn off auto brightness, then use Twilight as your brightness adjuster, turning the bluelight option down. Could that work?
The weird thing about the a52 is that it has pwm even on max brightness, so probably twilight wont work as well. I will try it later though. Same problem on the premium samsung range: https://eu.community.samsung.com/t5...been-addressed-on-the-s21-series/td-p/2641628
dragon.. said:
The weird thing about the a52 is that it has pwm even on max brightness, so probably twilight wont work as well. I will try it later though. Same problem on the premium samsung range: https://eu.community.samsung.com/t5...been-addressed-on-the-s21-series/td-p/2641628
Click to expand...
Click to collapse
Yeah, it still flickers even at full brightness. Maybe setting it at 60hz could fix that? I'll try it later to see if that could work. My previous phone doesn't have that issue at full brightness, so I'll gauge the difference based on the difference between the two.
I use mine only on 60hz and it still flickers.
Yeah, I've tested it and there is a difference between 60hz and 90hz, but the flicker is still present.
Edit: I also re did the test on my old device, a J7 Pro, and it stops to flicker altogether at peak brightness. So yeah, this phone has very prominent PWM.
ashraftheboss said:
Edit: I also re did the test on my old device, a J7 Pro, and it stops to flicker altogether at peak brightness. So yeah, this phone has very prominent PWM.
Click to expand...
Click to collapse
Yeah, that's why samsung should do something about it. Because we still have flickering at max brightness, we can't use other software to correct the issue.
dragon.. said:
The weird thing about the a52 is that it has pwm even on max brightness, ...
Click to expand...
Click to collapse
I suspect you didn't actually have the brightness set to maximum. This cannot be set manually, but is only set when the ambient brightness sensor (front camera) is illuminated by a very bright light - the sun, or a very bright flashlight. The brightness of the display is then visibly increased above the normal maximum.
Well, if the max brightness can't be controlled then it's not relevant. In this review https://www.notebookcheck.net/Samsu...ntly-more-affordable-without-5G.539956.0.html they tested the pwm on the display with an osciloscope and it shows that when you manually set the display at 100% brightness it still has pwm. This is one of the worst pwm out there, and a shame for samsung to do something like this.
is a shame unless samsung make a change in the firmaware the a52 is a pain in the eyes i need to sell mine now i cant play any video game unless i want a eyestrain
Pwm sensitive here.
Samsung A71 was OK pwm 240 hz.
Samsung 21fe was OK pwm 240 hz.
Samsung s6 edge was OK pwm 240hz
Mi 11 ultra not OK pwm 480hz. Not OK even with anti-flickering or pwm_free / oledsaver app. Mi 11 ultra has Samsung display E4.
I really don't understand. Maybe is the highs and Bottoms in the amplitudes.
Works well on my galaxy s8
ashraftheboss said:
I've read a bit about it on the link you've provided. How did you know if our phones have it? I am quite interested in this!
Click to expand...
Click to collapse
Hi. I realised the negative effects last year after a year of using amoled display on redmi note 10. It gave me headaches and also my eye power changed from 0.5 to 1.5 for both the eyes in just less than a year. I do 3 hours of use a day. That's how I learnt about PWM and the headache it gives to people.
edit - REDMI NOTE 10 died a week ago and I am searching for a phone which doesn't have PWM issue in it. For past 7 days I am using LCD screen and my eyes feels a lot better.
Related
Hello, I've recently purchased a Oneplus 7 Pro and noticed it was using an OLED panel, the problem is that Burn-ins scare me a whole lot, as such, I have been wondering how others have been using their phones. I've tried using Google, but have found nothing truly satisfactory and as such, I have compilled a few questions i had about the display.
- Is screen burn-in still a real issue? and should I avoid using the phone over long periods of time?
- Do "True black" wallpapers help with this issue? what about dark gray? and a bright wallpaper?
- Do both the static navigation bar and status bar have issues? Same with the AOD, does the fingerprint icon cause issues?
- Should I take extra steps to prevent burn-in? (If so, please say which ones, eg. Any practices you have to prevent screen burn-ins)
(On a side note, does anyone approximatly know how long [in general] an OLED panel at medium brightness and daily moderate to heavy use has before it shows signs of burn-in?)
I'm sorry if this has already been addressed, but i have searched through the forums and have found nothing.
Thanks a lot!
CurlyApple said:
Hello, I've recently purchased a Oneplus 7 Pro and noticed it was using an OLED panel, the problem is that Burn-ins scare me a whole lot, as such, I have been wondering how others have been using their phones. I've tried using Google, but have found nothing truly satisfactory and as such, I have compilled a few questions i had about the display.
- Is screen burn-in still a real issue? and should I avoid using the phone over long periods of time?
- Do "True black" wallpapers help with this issue? what about dark gray? and a bright wallpaper?
- Do both the static navigation bar and status bar have issues? Same with the AOD, does the fingerprint icon cause issues?
- Should I take extra steps to prevent burn-in? (If so, please say which ones, eg. Any practices you have to prevent screen burn-ins)
(On a side note, does anyone approximatly know how long [in general] an OLED panel at medium brightness and daily moderate to heavy use has before it shows signs of burn-in?)
I'm sorry if this has already been addressed, but i have searched through the forums and have found nothing.
Thanks a lot!
Click to expand...
Click to collapse
I don't even think about it.
I share the same concerns.
The last OLED phone I had was a Galaxy Nexus and I told myself I'd never get an OLED screen again after that nightmare.
Dealing with the OLED issues has been better with improvements in the technology and overall quality control.
Android OS also has some changes that help prevent burn in. For example the navigation bar and status bar change colors based on the app.
With AOD I know Samsung for example slowly moves the elements around so it doesn't burn in. You can enable the Oneplus AOD with root but Always on Display isn't the same as the Ambient Display on stock Oneplus. Ambient display doesn't stay on screen long enough to really cause any burn in.
Best practices are to avoid high brightness, stay at half or less. If you have a game HUD or other static elements on screen for extended periods of time, rotate the phone when in landscape so it is less likely to burn in.
I'm not an expert on this so i'd like to hear others responses too. This is a more expensive flagship phone so I want to use it for games but avoid the burn in.
I've already read some reports of burn-in on Oneplus Chinese board. The culprits seem to be some Tencent games and its video streaming service. All have very high contrast UI elements, and users tend to turn the brightness very high.
This was the case with my plasma TV. Civ4 left some nasty burn-in in the first year but after so many years of heavy PC usage those remain the only true burn-ins on the TV. It depends on the app. Are there some ways to measure contrast of onscreen elements? In addition to phones I need to replace my plasma with OLED in the coming years.
I got burn in on my OnePlus 3 bc I keep it in my car and use it for a music player, there were times I left it on overnight on a static image multiple times, so if u plan keeping ur phone on all the time on a certain image then u don't have anything to worry about.
I used the Galaxy S3, Oneplus 3, Oneplus 5T all with OLEDs. No burn in. Never. Of course if you are and extrem case and you leave the screen static on for a lot of hours on several days there MIGHT be the risk. But with normal to "normal" heavy usage you shouldnt really be concerned.
CurlyApple said:
Hello, I've recently purchased a Oneplus 7 Pro and noticed it was using an OLED panel, the problem is that Burn-ins scare me a whole lot, as such, I have been wondering how others have been using their phones. I've tried using Google, but have found nothing truly satisfactory and as such, I have compilled a few questions i had about the display.
- Is screen burn-in still a real issue? and should I avoid using the phone over long periods of time?
- Do "True black" wallpapers help with this issue? what about dark gray? and a bright wallpaper?
- Do both the static navigation bar and status bar have issues? Same with the AOD, does the fingerprint icon cause issues?
- Should I take extra steps to prevent burn-in? (If so, please say which ones, eg. Any practices you have to prevent screen burn-ins)
(On a side note, does anyone approximatly know how long [in general] an OLED panel at medium brightness and daily moderate to heavy use has before it shows signs of burn-in?)
I'm sorry if this has already been addressed, but i have searched through the forums and have found nothing.
Thanks a lot!
Click to expand...
Click to collapse
Better u only turn it on for a few seconds, be carefull after 10 sec it gets critical..
Just don't leave the screen on at max brightness for long periods of time and you'll avoid burn in.
Because the pixels are self-illuminating and will eventually wear out/start dimming in an OLED display over time, this will probably be a concern with any phone that has such a display.
I had burn-in with my OnePlus 3T starting after a little over a year of use. I had my 6T for about 7 months and hadn't noticed any problems with it by that point.
I think the biggest culprit in long-term use is the notifications area of the status bar, unfortunately. The notification icons usually directly contrast with whatever is on the screen at the time, which ends up causing the pixels to wear out at different rates. While the burn-in on my 3T wasn't defined or crisp, there was a noticeable brightness difference where the icons usually display, and it was apparent any time there was a solid color in that area of the screen.
https://www.cnet.com/news/oled-screen-burn-in-what-you-need-to-know/
To fight this, keep up to date with swiping away notifications, and use gesture controls in OOS instead of the navigation bar.
Use Auto brightness and enjoy the phone...
Honestly, I would be concerned. I have noticed screen burn on my 7 Pro already. My specific case is that I use Waze while driving, and on long (> 1 hour) drives I get the UI lightly burned in. After I noticed it, I alternate the phone orientation 180 degrees to minimize its effects. I also have the "Colors" screen saver activate whenever plugged in, which has noticeably reduced & corrected the issue. Just be aware and adjust the phone orientation regularly and you should not see anything burn in.
My Galaxy S4 and 1+ 3T both had burn in, but after several years of use. (Same app was the culprit.) I think the reason it happened on my 7 Pro faster is because of the higher brightness and 90Hz refresh rate. Once I kicked it down to 60Hz it does not happen near as often .
thedr9669 said:
Honestly, I would be concerned. I have noticed screen burn on my 7 Pro already. My specific case is that I use Waze while driving, and on long (> 1 hour) drives I get the UI lightly burned in. After I noticed it, I alternate the phone orientation 180 degrees to minimize its effects. I also have the "Colors" screen saver activate whenever plugged in, which has noticeably reduced & corrected the issue. Just be aware and adjust the phone orientation regularly and you should not see anything burn in.
My Galaxy S4 and 1+ 3T both had burn in, but after several years of use. (Same app was the culprit.) I think the reason it happened on my 7 Pro faster is because of the higher brightness and 90Hz refresh rate. Once I kicked it down to 60Hz it does not happen near as often .
Click to expand...
Click to collapse
Do you have your screen turned to full brightness when using waze? I keep mine at about 40-50% brightness. I use maps for 2-3 hours a day 4 or 5 days a week and I have had my 7 Pro since launch and I have zero burn in. I have never had burn in going back to my note 3 days either. I/m actually looking at my OP6 right now as well and no burn in there either (bought that on launch day as well). I also activated forced 90hz all apps on my 7Pro as well and nothing yet. I'm guessing it's your screen brightness that is doing it. Nothing else makes any sense.
Tmobile demo both phone in my store have burn in.... But also does the note 9 and a few others.
Those have the same image on the screen 90% of the time and the screens are set to max brightness to show off the display. All AMOLED displays will burn in if you test your phone the same. When I use maps, I turn off auto brightness and just set it bright enough to see the screen which usually is about 40% brightness. I also change my wallpaper like once a week as well
Had burn in on both 6p and s9 and all in status bar and navigation bar. Now I've installed system tuner and switched on full immersive mode. You need to be rooted though. Using battery widget to look at battery life.
CurlyApple said:
Hello, I've recently purchased a Oneplus 7 Pro and noticed it was using an OLED panel, the problem is that Burn-ins scare me a whole lot, as such, I have been wondering how others have been using their phones. I've tried using Google, but have found nothing truly satisfactory and as such, I have compilled a few questions i had about the display.
- Is screen burn-in still a real issue? and should I avoid using the phone over long periods of time?
- Do "True black" wallpapers help with this issue? what about dark gray? and a bright wallpaper?
- Do both the static navigation bar and status bar have issues? Same with the AOD, does the fingerprint icon cause issues?
- Should I take extra steps to prevent burn-in? (If so, please say which ones, eg. Any practices you have to prevent screen burn-ins)
(On a side note, does anyone approximatly know how long [in general] an OLED panel at medium brightness and daily moderate to heavy use has before it shows signs of burn-in?)
I'm sorry if this has already been addressed, but i have searched through the forums and have found nothing.
Thanks a lot!
Click to expand...
Click to collapse
Used my OP3 for 3 years straight until I switched to the 7 pro. Never had to think about burn in. Just chill and enjoy the device
When using google maps or waze on long trips, keep the screen off till the next turn. That's what i do. I NEVER keep the screen on long enough with a static image. I don't think there is any tech that will not give a burn in with a static image over long periods of time. I will still pick OLED over LCD any day.
equlizer said:
When using google maps or waze on long trips, keep the screen off till the next turn. That's what i do. I NEVER keep the screen on long enough with a static image. I don't think there is any tech that will not give a burn in with a static image over long periods of time. I will still pick OLED over LCD any day.
Click to expand...
Click to collapse
Everyone should just have a spare lcd phone for navigation. I use an iphone 6s for navigation in my card. Tether data from my phone and dont have tk worry about burn in
I use mine for navigation ,i drive a convertible so the screen is always on high brightness.
Never had any issues with my galaxy s8 which i had for over a year and used it the same way. Poor thing had the maps on more than anything else.i broke the display before the any burn ins.
The display should not have any burn ins even after prolonged use.
However you might want to keep it at 90%max brightness.
I make the most of my oneplus 7 pro so if i notice any burn ins i'll just return it to warranty. I don't care ,i use the phone however i want to.
Also the colors are going to be visibly washed out after a few years of use compared to when it was new,that's why i always insure my phones and just get a brand new one before my contract expires.
In order to avoid getting burn-in you have to:
1. Avoid displaying images with static contents for more than one hour at a time. Many people get their keyboard burnt in because they text obsessively.
2. Avoid using a higher brightness than you need.
3. Maybe use the gesture based navigation.
Tipically burn in is a non-issue but displaying static content for more than an hour uninterrupted can get it to appear, depends on the panel, brightness and color being displayed.. Just pause what you're doing every once in a while and you should be fine.
Hey guys, when I lower the brightness to the lowest, the screen looks so weird, everything is washed out, and the left side is less bright. And also more I lower the brightness, grey colors look more greenish. Changing 120hz to 60hz makes a big difference but my question is, is it how the note 20 ultra's display works? Does your display look fine, guys? Should I get it replaced?
Here is the picture of the difference between normal and low brightness: https://imgur.com/a/NubU2ER
i had this big on 3 different tab s6. it is some kind of software-bug, cause this issue does not appear while the device was booting. BUT since you cannot do **** about this (even reseting wont help. some kind of firmware issue) your only option is to get replacement. thats a known issue for amoled-displays (but its also known that if you dimm the display enought, green is the last colour that you will see on the display)
hey guys!
my display set to adaptive,and the auto brightness is off,and the level is full bright
but somtimes the screen verybright and good and sometimes after 1 or two minutes ,its become less brightness by itself ,then sudenlly bright again
is this normal ? can we fix this ?
Make sure your screen time out time isn't set to something like 15 seconds
Sent from my SM-N986U using Tapatalk
AeroSatan said:
Make sure your screen time out time isn't set to something like 15 seconds
Sent from my SM-N986U using Tapatalk
Click to expand...
Click to collapse
no its set to 1 min but thx.
but i know everybody got this iisue its like the aouto brightness set to on but its off
bubu23 said:
no its set to 1 min but thx.
but i know everybody got this iisue its like the aouto brightness set to on but its off
Click to expand...
Click to collapse
So you're saying your auto brightness is off and you have it manually cranked all the way up but the issue is that it randomly dims and then gets bright again, on and off constantly?
Sent from my SM-N986U using Tapatalk
AeroSatan said:
So you're saying your auto brightness is off and you have it manually cranked all the way up but the issue is that it randomly dims and then gets bright again, on and off constantly?
Sent from my SM-N986U using Tapatalk
Click to expand...
Click to collapse
Sounds like a display problem.
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racingmatt1 said:
Sounds like a display problem.
Sent from my SM-N986U1 using Tapatalk
Click to expand...
Click to collapse
I concur
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AeroSatan said:
So you're saying your auto brightness is off and you have it manually cranked all the way up but the issue is that it randomly dims and then gets bright again, on and off constantly?
Sent from my SM-N986U using Tapatalk
Click to expand...
Click to collapse
yes but not all the time after few min
i have in familly 3 note 20 ultra and all the same ,so cant be display problem. i know many people say that thing ,and some tell them its like this because thers kind of protection of the screen so it wont be max bright all the time so it will not burn the screen ,i just wanted to know if thers a way to leave it on max for all time
bubu23 said:
yes but not all the time after few min
Click to expand...
Click to collapse
It's difficult for me to determine whether it's something intentionally done by the software to limit the screen brightness or a defect. If it's the latter and you can still exchange or at least attempt a warranty swap through a carrier, it maybe something to look worthwhile to look at.
Sent from my SM-N986U using Tapatalk
If you're saying that the Note 20 Ultra isn't as bright as previous Samsung phones I would concur!
I have an S10+ and Note 20 Ultra, and I don't know what brightness "problem" is people talking about. They're almost identical. You know that you can adjust brightness to your taste, even in auto, right? By default is dimmer because of energy saving stuff, but you can move the slider up...
I have a note 10+ I still daily, definitely dimmer than my n20u, but that sounds like software trying to adjust for some reason.
Samsung is buggy, will always be buggy I feel like.
coilbio said:
I have a note 10+ I still daily, definitely dimmer than my n20u, but that sounds like software trying to adjust for some reason.
Samsung is buggy, will always be buggy I feel like.
Click to expand...
Click to collapse
look its same like iphone
if you use iphone about 5 min its become hote thenn the screen dim
i know its in note 20 ultra as well if you use the phone surf lets say facebook 5 min its become little hot and dim the screen (not much ,little bit) at least with the exinos chip
DavidMarmon said:
It is due to the auto brightness.
Click to expand...
Click to collapse
no man auto brightness is off
try it out! if you in a dark place not alot of light even if the screen on full brightness it still will dim itself abit
but when you go no outside but to room with much more lite the screen will be more strong
its like the auto brightness even when off still doing somthing to keep the screen
It may be to protect your eyes or something but mine does this as well.
Auto Brightness - Off
Manually set brightness to highest point
Then if you go from a dim room to sunlight the screen will brighten up even with auto brightness off so you can see it under sunlight.
Anyone manage to get this issue resolved? When the phone get hot, the screen dim to the extend u cannot see clearly under the bright hot sun. Using Samsung superb chip. Really lots of issue with note 20 ultra. Samsung taking customer for granted now!
angka8 said:
Anyone manage to get this issue resolved? When the phone get hot, the screen dim to the extend u cannot see clearly under the bright hot sun. Using Samsung superb chip. Really lots of issue with note 20 ultra. Samsung taking customer for granted now!
Click to expand...
Click to collapse
When the screen is too bright it heats up then dims? Sounds like well thought out safety process implemented by samsung for people like you. ?
Limeybastard said:
When the screen is too bright it heats up then dims? Sounds like well thought out safety process implemented by samsung for people like you. ?
Click to expand...
Click to collapse
That is a big problem. I am just using Chrome and not playing games. Why would it heat up so freaking fast!
angka8 said:
That is a big problem. I am just using Chrome and not playing games. Why would it heat up so freaking fast!
Click to expand...
Click to collapse
Chrome? I stopped using that resources hungry POS browser years ago. I advice you do the same.
Limeybastard said:
Chrome? I stopped using that resources hungry POS browser years ago. I advice you do the same.
Click to expand...
Click to collapse
Works well on all my phones, but our individual experience with chrome doesn't add much to the fact that Samsung's software might be limiting the user experience, which it is, more so than other manufacturers.
After all, we should be the ones to dictate what we want to use for web browser or any other app and not have to change it because samsung has buggy software managing it's hardware. Other manufacturers have it down, imy currently loving my xperia mark 2 and the way it's optimized.
Hi guys,
Noticed a very interesting thing today: suddenly a white light started to pulse next to the front cam every time I was tilting the phone. It was quick 3-4 pulses with strict intervals as if a sensor was working. It didn't pulse when phone was in a fixed position, only when tilting, in all apps.
A reboot fixed this, but I wonder if there is any sensor there that activated because of something? Never experienced this before!
Any thoughts what it can be? Thx.
Sounds like proximity sensor to me.
znel52 said:
Sounds like proximity sensor to me.
Click to expand...
Click to collapse
Thanks. I also thought so but the phone didn't turn off the screen when I was placing my finger on that sensor. The proximity sensor should turn the screen off as far as I am aware. Maybe a glitch after doing a video call via Viber?
VirtualWaver said:
Thanks. I also thought so but the phone didn't turn off the screen when I was placing my finger on that sensor. The proximity sensor should turn the screen off as far as I am aware. Maybe a glitch after doing a video call via Viber?
Click to expand...
Click to collapse
A glitch with viber thats causing excessive proximity sensor usage. It will eventually burn the pixels around that area like the other post posted today.
Limeybastard said:
A glitch with viber thats causing excessive proximity sensor usage. It will eventually burn the pixels around that area like the other post posted today.
Click to expand...
Click to collapse
Thanks for this! I did test my screen and all looks good but this is worrying. However, this only happened once although I use Viber video calls every day.
VirtualWaver said:
Thanks for this! I did test my screen and all looks good but this is worrying. However, this only happened once although I use Viber video calls every day.
Click to expand...
Click to collapse
Im going to try this out myself next week and see what's going on. Mine ain't coming until Monday.
Limeybastard said:
A glitch with viber thats causing excessive proximity sensor usage. It will eventually burn the pixels around that area like the other post posted today.
Click to expand...
Click to collapse
Hoe bright is it?
Normally it could blink during SOT and with that duty cycle it will outlast many of the other screen pixels.
Or is there something I'm missing???
Are it's pixels IR?
blackhawk said:
Hoe bright is it?
Normally it could blink during SOT and with that duty cycle it will outlast many of the other screen pixels.
Or is there something I'm missing???
Are it's pixels IR?
Click to expand...
Click to collapse
Who's a hoe?
Probably much ado about nothing. But I can't test it. , The only thing that came to mind was screen being full brightness and proximity sensor being on for hours causing this. But just a hunch .
Limeybastard said:
A glitch with viber thats causing excessive proximity sensor usage. It will eventually burn the pixels around that area like the other post posted today.
Click to expand...
Click to collapse
Limeybastard said:
Who's a hoe?
Probably much ado about nothing. But I can't test it. , The only thing that came to mind was screen being full brightness and proximity sensor being on for hours causing this. But just a hunch .
Click to expand...
Click to collapse
Even at full brightness because it's flashing, it's duty cycle is less than the surrounding pixels plus it will "flash" by darkening its pixels depending on screen color.
If it has specialized IR emitters I could see that happening maybe; if there's a design or manufacturing flaw.
Because it's flashing visible light it would be hard to use a cam to detect IR... which is how I normally check IR emitters.
While it was easily seen on the Note 10 i can't see it on the Note 20
Nastrahl said:
While it was easily seen on the Note 10 i can't see it on the Note 20
Click to expand...
Click to collapse
Interesting. Maybe it uses IR diodes?
If it doesn't display when it's active maybe that's why some think it's "burnt out"?
Lol, until someone mentioned the flashing circle I never noticed it.
blackhawk said:
Interesting. Maybe it uses IR diodes?
If it doesn't display when it's active maybe that's why some think it's "burnt out"?
Lol, until someone mentioned the flashing circle I never noticed it.
Click to expand...
Click to collapse
I don't know.
I've read that they replaced all the sensors with the front camera, and that′s one of the battery killer since a few were completely passive like the ambiant light one, that's now active.
When a passive sensor needs no electricity to operate, an active needs to, and the camera can't work passively so it drains battery.
They advised to turn off all the features that use the front camera as a sensor like the auto brightness, smart stay (and also what can use the accelerometer like smart alert and raise to turn on the screen), etc. to avoid the process Android System to take to much battery.
Nastrahl said:
While it was easily seen on the Note 10 i can't see it on the Note 20
Click to expand...
Click to collapse
Nastrahl said:
I don't know.
I've read that they replaced all the sensors with the front camera, and that′s one of the battery killer since a few were completely passive like the ambiant light one, that's now active.
When a passive sensor needs no electricity to operate, an active needs to, and the camera can't work passively so it drains battery.
They advised to turn off all the features that use the front camera as a sensor like the auto brightness, smart stay (and also what can use the accelerometer like smart alert and raise to turn on the screen), etc. to avoid the process Android System to take to much battery.
Click to expand...
Click to collapse
Even passive sensors use some current although it may be in the microamps.
Autobrightness is a trash apk anyway.
Seems highly unlikely that the whole cam be used for these functions if at all.
VirtualWaver said:
Thanks. I also thought so but the phone didn't turn off the screen when I was placing my finger on that sensor. The proximity sensor should turn the screen off as far as I am aware. Maybe a glitch after doing a video call via Viber?
Click to expand...
Click to collapse
Not sure if anyone told you this sorry haven't had time to read the thread but I would suggest avoiding viber calls on this phone. The proximity sensor is damaging the screen when on viber. It seems viber is accessing the sensor too aggressively.
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warriorvibhu said:
Not sure if anyone told you this sorry haven't had time to read the thread but I would suggest avoiding viber calls on this phone. The proximity sensor is damaging the screen when on viber. It seems viber is accessing the sensor too aggressively.
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You know this is most likely a digital circuit; a fixed voltage of an either high or low value... those values are fixed and don't change. Even firmware can't alter that let alone apks. Duty cycle rate/length maybe.
This urban rumor about the proximity sensor causing screen damage has been around since at least 2015, long before OLED screens.
A Google search yielded nothing except this:
https://us.community.samsung.com/t5/Galaxy-S10/Proximity-sensor-issues-S10-S10/td-p/498492/page/9
blackhawk said:
Even passive sensors use some current although it may be in the microamps.
Autobrightness is a trash apk anyway.
Seems highly unlikely that the whole cam be used for these functions if at all.
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Trash apk ? Sorry i meant the built-in adaptive brightness.
---------- Post added at 01:16 AM ---------- Previous post was at 01:15 AM ----------
blackhawk said:
You know this is most likely a digital circuit; a fixed voltage of an either high or low value... those values are fixed and don't change. Even firmware can't alter that let alone apks. Duty cycle rate/length maybe.
This urban rumor about the proximity sensor causing screen damage has been around since at least 2015, long before OLED screens.
A Google search yielded nothing except this:
https://us.community.samsung.com/t5/Galaxy-S10/Proximity-sensor-issues-S10-S10/td-p/498492/page/9
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Click to collapse
I personally never heard about it. Thanks for the insight
Nastrahl said:
Trash apk ? Sorry i meant the built-in adaptive brightness"
I personally never heard about it. Thanks for the insight
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My opinions.
There certainly are long standing Samsung issues that span more then one generation of phones. The proximity sensor trashing the screen doesn't appear to exist at all. If anything it conserves screen life.
Auto brightness was always twitchy even on my S4+.
Auto brightness was never truly adaptive... and still isn't. Lol, all it does is give me a headache and waste resources.
The other thing is I always try to avoid using my phones in direct sunlight. Very rarely do I ever go past 65% brightness.
Direct sunlight+high ambient temperature+high power consumption can really overheat a phone fast.
Even worse...
Auto brightness on+charging+sunlight+accidental screen turn on that's not noticed, can fry a phone in a few minutes. Real easy to do in the car... been there.
blackhawk said:
My opinions.
There certainly are long standing Samsung issues that span more then one generation of phones. The proximity sensor trashing the screen doesn't appear to exist at all. If anything it conserves screen life.
Auto brightness was always twitchy even on my S4+.
Auto brightness was never truly adaptive... and still isn't. Lol, all it does is give me a headache and waste resources.
The other thing is I always try to avoid using my phones in direct sunlight. Very rarely do I ever go past 65% brightness.
Direct sunlight+high ambient temperature+high power consumption can really overheat a phone fast.
Even worse...
Auto brightness on+charging+sunlight+accidental screen turn on that's not noticed, can fry a phone in a few minutes. Real easy to do in the car... been there.
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Thanks, i never thought about that so it's a very valuable information.
Just in case if it can be useful :
A few years ago I found an app called Underburn which is a complete new approach about adaptive brightness.
https://play.google.com/store/apps/details?id=com.out386.underburn
Instead of adjusting the screen brightness from the ambient light, it set it according of the amount of white pixels displayed on screen to avoid binding you, and it doesn't care about sunlight.
The more white is displayed, the more it will dim the screen (by reducing the screen brightness, not by applying a filter ; even if there's also a setting for that if its too bright for you even at the minimum level) by the amount of your choosing.
It can play a role to save battery too somehow.
Nastrahl said:
Thanks, i never thought about that so it's a very valuable information.
Just in case if it can be useful :
A few years ago I found an app called Underburn which is a complete new approach about adaptive brightness.
https://play.google.com/store/apps/details?id=com.out386.underburn
Instead of adjusting the screen brightness from the ambient light, it set it according of the amount of white pixels displayed on screen to avoid binding you, and it doesn't care about sunlight.
The more white is displayed, the more it will dim the screen (by reducing the screen brightness, not by applying a filter ; even if there's also a setting for that if its too bright for you even at the minimum level) by the amount of your choosing.
It can play a role to save battery too somehow.
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Click to collapse
Thank you
I'll take a look at it. I'm running on dark mode but since it's Pie it's not native to all apps like Gmail which burns my eyes out.
*I'm playing with it. It will run on Pie. It takes some time to set up but definitely has potential.
Haven't been able to fairly gauge it's configured battery usage.
The first day I had my GS22U I noticed what I thought was some sort of odd screen adjustments but thought it may be adaptive brightness learning my habits. As I've used the phone I was able to reliably replicate my issue. Anytime I'm using adaptive refresh rate and I'm using a text field I can see what appears to be very subtle gradient shifts or flickering both when I start typing and when I stop typing. This is especially noticable in Google chromes search bar, Facebook messenger and reddit text fields. If you use a camera to look at the display it almost appears as an old school crt monitor when you see it through a camera. I was able to replicate this issue on my wife's device as well and the issue can be resolved by lowering the refresh rate to 60hz.
Has anyone else noticed this issue, or would car to try to replicate the issue? It is extremely subtle and easiest to detect using a camera to record it. Is there anyway to lock my refresh rate to a higher frequency with root permission?
Update, I happened to scroll down and see the galaxy max hz app that allowed me control over the refresh rate and I noticed that certain frequency would create the aforementioned issue and certain frequencies wouldn't. It seems as if seeing the min to 60 and max to 120 has resolved my flicker issue. Edit: never mind. It seems that different frequencies or the changing of frequencies tends to make the issue worse.
i turned it off, phone is very laggy with it. my screen is flickering
Now it seems as if I'm having a hard time noticing it with my naked eye but it seems to be getting worse when I look at it through a camera. I'm wondering if I should trade this in as a defective device.
yourself88xbl said:
Now it seems as if I'm having a hard time noticing it with my naked eye but it seems to be getting worse when I look at it through a camera. I'm wondering if I should trade this in as a defective device.
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do you look at your phone through a camera often?
Lennyuk said:
do you look at your phone through a camera often?
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No but worried it's going to get worse and become even more noticable with the naked eye. I wouldn't have thought to look at it through a camera if I wasn't noticing something I noticed with my naked eye.
yourself88xbl said:
Update, I happened to scroll down and see the galaxy max hz app that allowed me control over the refresh rate and I noticed that certain frequency would create the aforementioned issue and certain frequencies wouldn't. It seems as if seeing the min to 60 and max to 120 has resolved my flicker issue. Edit: never mind. It seems that different frequencies or the changing of frequencies tends to make the issue worse.
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Hey bro , did you fix that issue ??